CN113889751A

CN113889751A - Space staggered type integrated receiving and transmitting separation microwave detection antenna

Info

Publication number: CN113889751A
Application number: CN202111210870.8A
Authority: CN
Inventors: 邹高迪; 邹新; 孙毅
Original assignee: Shenzhen Merrytek Technology Co Ltd
Current assignee: Shenzhen Merrytek Technology Co Ltd
Priority date: 2021-04-27
Filing date: 2021-10-18
Publication date: 2022-01-04
Also published as: CN113839191A; CN216773504U; CN216563520U; CN216773505U; CN216563518U; CN216563519U

Abstract

The invention provides a space staggered integrated transceiving and separating microwave detection antenna, which comprises a reference ground and two radiation sources, one radiation source is set as a half-wave oscillator radiation source in a single-point feeding mode, the other radiation source is set as one of a flat radiation source, the half-wave oscillator radiation source in the single-point feeding mode and a half-wave oscillator radiation source in a double-point feeding mode, the two radiation sources are arranged in a staggered mode in a vertical projection space of the reference ground at the same side of the reference ground and spaced from the reference ground at intervals to form a structural mode that the two radiation sources integrally share the reference ground, and correspondingly, in the states that the two radiation sources are respectively subjected to transmitting feed and receiving feed, the receiving and transmitting separated microwave detection antenna is formed in a structural form that the two radiation sources which are staggered in space integrally share the reference ground.

Description

Space staggered type integrated receiving and transmitting separation microwave detection antenna

Technical Field

The invention relates to the field of microwave detection, in particular to a spatial staggered integrated transceiving and separating microwave detection antenna.

Background

The microwave detection technology works based on the microwave doppler effect principle, and can detect the movement of a target space to judge whether a human body enters and exists in the target space, so that a moving object can be detected under the condition of not invading the privacy of the human body, and the microwave detection technology can be used as a human and an object, and an important pivot connected between the object and the human body is applied to behavior detection and existence detection, so that the microwave detection technology has wide application prospect. Specifically, the microwave detection technology forms a detection area in the target space by transmitting a microwave beam to the target space, receives a reflected echo formed by the microwave beam reflected by a corresponding object in the detection area, and outputs a doppler intermediate frequency signal corresponding to the frequency and phase difference between the microwave beam and the reflected echo in a subsequent mixing detection-based mode, so that the fluctuation of the doppler intermediate frequency signal in amplitude corresponds to the movement of the object based on the doppler effect principle, and the microwave detection technology is suitable for representing human body movement in human body movement detection application. The microwave detection antenna is used as basic hardware for transmitting the microwave beam and/or receiving the reflected echo in the microwave detection technology, and the structural form and performance parameters related to the structural form directly influence the structural design and the performance of the corresponding microwave detection device.

The existing microwave detection antenna is mainly divided into a microwave detection antenna with a cylindrical radiation source structure and a microwave detection antenna with a flat radiation source structure (also called a patch antenna) based on the radiation source structure. Specifically, referring to fig. 1A to 1C of the drawings of the present specification, the structural principle of a microwave detecting antenna 10P of a conventional pillar-shaped radiation source structure and a radiation pattern and S11 curve corresponding to the structural principle are respectively illustrated schematically, wherein the microwave detecting antenna 10P of the pillar-shaped radiation source structure includes a pillar-shaped radiation source 11P and a reference ground 12P, wherein the reference ground 12P is provided with a radiation hole 121P, wherein the pillar-shaped radiation source 11P extends straight from one end thereof to vertically penetrate the reference ground 12P through the radiation hole 121P in a state of being spaced apart from the reference ground 12P, which is correspondingly named as a feeding end 111P of the pillar-shaped radiation source 11P, wherein an electrical length between one end of the pillar-shaped radiation source 11P, which is far from the feeding end 111P, and the reference ground 12P is approximately one quarter wavelength, that is, the cylindrical radiation source 11P has an electrical length tending to a quarter wavelength, and when the cylindrical radiation source 11P is fed by the corresponding excitation signal at the feeding end 111P, the cylindrical radiation source 11P can couple with the reference ground 12P to emit the microwave beam corresponding to the frequency of the excitation signal, so as to form a radiation space 100P with the axis of the cylindrical radiation source 11P as the central axis, where the radiation space 100P is the coverage of the microwave beam emitted by the microwave detection antenna 10P of the cylindrical radiation source structure, and where the current density of the end of the cylindrical radiation source 11P away from the feeding end 111P is the largest under the excitation of the corresponding excitation signal, and then under the suitable area setting of the reference ground 12P, the front and back electromagnetic radiation ranges of the microwave detection antenna 10P of the cylindrical radiation source structure with the reference ground 12P as the boundary tend to be consistent without directional radiation A detection dead zone is formed in the extending direction of the two ends of the cylindrical radiation source 11P, and a larger backward lobe is present in the extending direction of the two ends of the cylindrical radiation source 11P corresponding to the radiation space 100P, and a concave detection dead zone is present in the extending direction of the two ends of the cylindrical radiation source 11P with the axis of the cylindrical radiation source 11P as the central axis, so that in practical applications, it is easy to cause a situation that the detection area of the microwave detection antenna 10P of the cylindrical radiation source structure cannot be matched with the target space, for example, a situation that the detection area is partially overlapped with the target space in a cross manner, so as to cause a situation that the target space outside the detection area cannot be effectively detected, and/or a situation that the detection area outside the target space has environmental interference, including motion interference, electromagnetic interference and self-excitation interference caused by environmental electromagnetic shielding, cause the microwave detection antenna 10P of column radiation source structure surveys the poor and/or interference killing feature ' S of precision poor problem, in addition the resonance characteristic of the microwave detection antenna 10P of column radiation source structure corresponding to the S11 curve of fig. 1C is not ideal, and the concrete embodiment is that the S11 curve that fig. 1C illustrates is in the microwave detection antenna 10P of column radiation source structure ' S work frequency point presents the frequency bandwidth of broad, corresponds the microwave detection antenna 10P of column radiation source structure is easy mutual interference and receives external electromagnetic radiation ' S interference. Namely, the microwave detecting antenna 10P with the cylindrical radiation source structure has poor detection stability in practical application and has limited adaptability to different application scenarios in practical application.

Corresponding to fig. 2, the microwave detecting antenna 10P 'of the flat radiation source structure includes a flat radiation source 11P' and a reference ground 12P ', wherein the flat radiation source 11P' is a metal plate layer designed in a flat form and is spaced from the reference ground 12P 'in a parallel state, wherein the flat radiation source 11P' has a feeding point 111P 'deviated from a physical center point of the flat radiation source 11P', and is distinguished from the microwave detecting antenna 10P of the cylindrical radiation source structure, the microwave detecting antenna 10P 'of the flat radiation source structure has a polarization direction from the feeding point 111P' of the flat radiation source 11P 'to the physical center point of the flat radiation source 11P', corresponding to when the flat radiation source 11P 'is fed by a corresponding excitation signal at the feeding point 111P', the flat-panel radiation source 11P 'is capable of generating an initial polarization in the polarization direction to directionally emit the microwave beam corresponding to the frequency of the excitation signal in a direction from the reference ground 12P' to the flat-panel radiation source 11P ', mutually coupled with the reference ground 12P'.

Furthermore, the existing microwave detecting antenna is divided into a receiving-transmitting integrated microwave detecting antenna and a receiving-transmitting separated microwave detecting antenna based on the receiving-transmitting reciprocity characteristic of the antenna, wherein the receiving-transmitting integrated microwave detection antenna simultaneously transmits the microwave beam and receives the reflected echo by a microwave detection antenna of a single columnar radiation source structure or a microwave detection antenna of a flat radiation source structure so as to obtain the microwave detection antenna with smaller volume, but interference between signals is easily caused by the need to transmit the microwave beam and receive the reflected echo simultaneously with a single antenna, the detection precision and stability in practical application are not ideal, so that the requirements on the structure of the corresponding microwave detection antenna and the impedance matching corresponding to the feed design are severer, and the microwave detection antenna has higher design complexity and production process complexity under the trend of simplified design. For example, in practical applications, when the transceiver-integrated microwave detecting antenna is used, the isolation between the excitation signal corresponding to the microwave beam and the echo signal corresponding to the reflected echo is increased by using the microwave detecting antenna 10P ' with a single flat radiation source structure based on orthogonal feeding, that is, on the basis of the structure of the microwave detecting antenna 10P ' with the flat radiation source structure illustrated in fig. 2, another feeding point 111P ' is further arranged at the position perpendicular to the polarization direction and away from the physical center point of the flat radiation source 11P ', so that when the excitation signal is input at one feeding point 111P ' and the echo signal is received at the other feeding point 111P ', the isolation between the excitation signal and the echo signal is increased based on the orthogonal relationship between the two feeding points 111P ', since the two feeding points 111P ' in the orthogonal form are simultaneously disposed on the same flat-panel radiation source 11P ', the impedance matching requirements corresponding to the structural form design and the feeding design of the flat-panel radiation source 11P ' are more complicated and may conflict with each other, and thus, the design complexity and the limitation as well as the production process complexity and the limitation are higher.

The receiving-transmitting separated microwave detection antenna uses the microwave detection antenna of a columnar radiation source structure or the microwave detection antenna of a flat radiation source structure as a transmitting antenna to independently transmit the microwave beam, and uses the microwave detection antenna of another columnar radiation source structure or the microwave detection antenna of the flat radiation source structure as a receiving antenna to independently receive the reflected echo, namely, the double antennas are used for respectively and independently transmitting the microwave beam and independently receiving the reflected echo, so that the higher isolation degree between the excitation signal and the echo signal is easily obtained in the trend of design simplification, thereby being beneficial to improving the detection precision and stability in practical application, but the form of the double antennas undoubtedly occupies larger volume. Specifically, in practical application, the microwave detection antenna based on the columnar radiation source structure cannot form directional radiation and the defects presented on the S11 curve, when a transceiving separated microwave detection antenna is adopted, the microwave detection antenna 10P 'of the dual-flat radiation source structure is mostly arranged in parallel based on the reverse polarization direction, and on the basis that the distance between the two flat radiation sources 11P' of the microwave detection antenna 10P 'of the dual-flat radiation source structure is greater than λ/4, the isolation between the microwave detection antennas 10P' of the dual-flat radiation source structure is further improved based on the corresponding isolation optimization design, wherein λ is a wavelength parameter corresponding to the frequency of a corresponding excitation signal. That is to say, the volume occupied by the receiving and transmitting separated microwave detecting antenna composed of the microwave detecting antenna 10P ' of the dual-flat radiation source structure in the minimum occupied volume form is more than twice of the volume occupied by the microwave detecting antenna 10P ' of the flat radiation source structure, and the minimum occupied volume form still needs to be supplemented with the corresponding isolation optimization design to ensure the isolation between the two microwave detecting antennas 10P ' of the flat radiation source structure. The planar size of the microwave detection antenna 10P 'of the flat-plate radiation source structure in the direction of the reference ground 12P' is directly limited by the area of the reference ground 12P ', and the microwave detection antenna 10P' of the flat-plate radiation source structure has certain size requirements for the flat-plate radiation source 11P ', so that the area of the reference ground 12P' has certain size requirements on the basis of satisfying the structure larger than the area of the flat-plate radiation source 11P ', and correspondingly, the planar size of the microwave detection antenna 10P' of the flat-plate radiation source structure in the direction of the reference ground 12P 'is difficult to reduce, so that the volume occupied by the transceiving split type microwave detection antenna composed of the microwave detection antenna 10P' of the dual-flat-plate radiation source structure is difficult to reduce, and thus the miniaturization trend is difficult to adapt.

Disclosure of Invention

An object of the present invention is to provide a spatially staggered integrated transmitting-receiving-separating microwave detecting antenna, wherein the spatially staggered integrated transmitting-receiving-separating microwave detecting antenna includes a reference ground and two radiation sources, wherein two radiation sources are alternately disposed in a vertical projection space of the reference ground from the reference ground on the same side of the reference ground, and the vertical projection space of the reference ground is a projection space of the reference ground in a direction perpendicular to the reference ground, so as to form a structural form that the two radiation sources integrally share the reference ground, corresponding to a state that one of the radiation sources is fed by transmission and the other of the radiation sources is fed by reception, an antenna formed by one of the radiation sources and the reference ground independently transmits a microwave beam, and an antenna formed by the other of the radiation sources and the reference ground independently receives a corresponding reflected echo, therefore, the receiving and transmitting separated microwave detection antenna is formed in a structural form that the two spatially staggered radiation sources integrally share the reference ground.

An object of the present invention is to provide a spatially staggered integrated transceiving and splitting microwave detecting antenna, wherein the transceiving and splitting microwave detecting antenna is formed in a structure form that two spatially staggered radiation sources integrally share the reference ground, so as to ensure the detection accuracy and stability of the spatially staggered integrated transceiving and splitting microwave detecting antenna based on a transceiving and splitting manner, and simultaneously ensure the small volume advantage of the spatially staggered integrated transceiving and splitting microwave detecting antenna based on the structure form that the two radiation sources integrally share the reference ground, that is, combine the aforementioned advantages of the existing transceiving and splitting microwave detecting antenna and transceiving and splitting microwave detecting antenna.

An object of the present invention is to provide a spatially staggered integrated transceiving and separating microwave detecting antenna, wherein in view of the deformation exploration of the microwave detecting antenna of the columnar radiation source structure, bending the columnar radiation source to make one end far away from the feeding end thereof close to the reference ground within a distance range of λ/128 or more and λ/6 or less, a deformation structure of the microwave detecting antenna of the columnar radiation source structure capable of forming directional radiation but incapable of generating significant resonant frequency points is obtained, where λ is a wavelength parameter corresponding to the frequency of a corresponding excitation signal, and an antenna formed by a half-wave oscillator radiation source obtained based on further improvement of the deformation structure and the reference ground can retain the advantages of the microwave detecting antenna of the columnar radiation source structure in structural form, and one of the radiation sources of the spatially staggered integrated transceiving and separating microwave detecting antenna is set to be the same When the half-wave oscillator radiation source is used, the radiation source has a columnar structure and is suitable for being staggered with the flat radiation source or the half-wave oscillator radiation source from the same side of the reference ground and the reference ground at intervals in a vertical projection space of the reference ground, and an antenna formed by the half-wave oscillator radiation source and the reference ground can form directional radiation and generate obvious resonant frequency points and avoid forming a detection dead zone in the directional radiation direction, so that the radiation source is suitable for receiving and transmitting separated Doppler microwave detection.

An object of the present invention is to provide a spatially staggered integrated transceiving microwave detecting antenna, wherein one of the radiation sources of the spatially staggered integrated transceiving microwave detecting antenna is configured as the half-wave oscillator radiation source, and the other radiation source is configured as a flat radiation source or the half-wave oscillator radiation source, such that the two radiation sources are suitable for being staggered in the vertical projection space of the reference ground at the same side of the reference ground and spaced from the reference ground based on the column shape design of the half-wave oscillator radiation source, and the antenna formed based on the half-wave oscillator radiation source and the reference ground can form directional radiation and generate significant resonant frequency points, and avoid forming a detection dead zone in the directional radiation direction, so that the spatially staggered integrated transceiving microwave detecting antenna formed in the structural shape that the two radiation sources spatially staggered integrated share the reference ground is formed in an integrated manner The antenna is suitable for use in transmit and receive separated doppler microwave detection.

An object of the present invention is to provide a spatially staggered integrated transceiving microwave detecting antenna, wherein the half-wave dipole radiation source can form a definite polarization direction with respect to the columnar radiation source, and the two radiation sources corresponding to the spatially staggered integrated transceiving microwave detecting antenna are suitable for being staggered in a vertical projection space of the reference ground at an interval from the reference ground on the same side of the reference ground in a state where the polarization directions of the two radiation sources are orthogonal, so as to ensure isolation between the two spatially staggered radiation sources and antennas formed on the reference ground, and further ensure detection accuracy and stability of the spatially staggered integrated transceiving microwave detecting antenna when the spatially staggered integrated transceiving microwave detecting antenna is used for transceiving separated doppler microwave detection.

An object of the present invention is to provide a spatially staggered integrated transceiving and separating microwave detecting antenna, wherein the antenna formed by the half-wave oscillator radiation source and the reference ground can form directional radiation, and under the same area condition of the reference ground, the gain of the antenna formed by the half-wave oscillator radiation source and the reference ground in the directional radiation direction can be increased by multiple compared with the microwave detecting antenna of the columnar radiation source structure, so as to facilitate the improvement of the detection distance and the detection sensitivity of the spatially staggered integrated transceiving and separating microwave detecting antenna under the same power limitation, or reduce the power consumption of the spatially staggered integrated transceiving and separating microwave detecting antenna under the same detection distance and detection sensitivity limitation.

An object of the present invention is to provide a spatially staggered integrated transceiving microwave detecting antenna, wherein the antenna formed by the half-wave oscillator radiation source and the reference ground has an obvious resonant frequency point, and the Q value of the antenna formed by the corresponding half-wave oscillator radiation source and the reference ground at a working frequency point is high and has a good frequency selection characteristic, i.e., the antenna formed by the half-wave oscillator radiation source and the reference ground has a good selectivity for a received reflected echo and has a strong anti-interference capability, thereby being beneficial to ensuring the detection accuracy and stability of the spatially staggered integrated transceiving microwave detecting antenna when used for transceiving separated doppler microwave detection.

An object of the present invention is to provide a spatially staggered integrated transceiving split microwave detecting antenna, wherein the half-wave dipole radiation source has an electrical length greater than or equal to 1/2 and less than or equal to 3/4, so as to facilitate forming a phase difference tending to reverse phase between two ends of the half-wave dipole radiation source based on a corresponding feeding structure, and further enable energy mutually coupled between two ends of the half-wave dipole radiation source to tend to maximize, thereby ensuring gain and resonance characteristics of the antenna formed by the half-wave dipole radiation source and the reference ground.

An object of the present invention is to provide a spatially staggered integrated transceiving split microwave detecting antenna, wherein at least one end of the half-wave oscillator radiation source approaches the reference ground in a distance range of λ/128 or more and λ/6 or less, this is done to facilitate the formation of directional radiation based on the coupling between the end of the half-wave dipole radiation source having the higher current density distribution and the reference ground, and on the premise of forming directional radiation, the area requirement on the reference ground is reduced based on the maximization of the mutual coupling energy between the two ends of the half-wave oscillator radiation source, therefore, the two radiation sources of the space staggered type integrated transceiving and separating microwave detection antenna are respectively arranged in the state of the half-wave oscillator radiation source, and the miniaturization of the space staggered type integrated transceiving and separating microwave detection antenna is facilitated.

An object of the present invention is to provide a spatially staggered integrated transceiving microwave detecting antenna, wherein under the precondition of forming directional radiation, based on the premise that two ends of the half-wave dipole radiation source can be coupled with each other and have coupling energy tending to maximize, the electrical parameter requirement on the reference ground is reduced, i.e. the reference ground allows other components to be arranged without affecting the normal operation of the antenna formed by the half-wave dipole radiation source and the reference ground, so that the two radiation sources of the spatially staggered integrated transceiving microwave detecting antenna are respectively arranged with the half-wave dipole radiation source, allowing the reference ground to be formed on the circuit board in a copper-clad layer manner under the limitation of the size and material of the circuit board, and the half-wave dipole radiation source to be fixed on the circuit board in an electrical connection state of being coupled with the corresponding main circuit feed, the space staggered integrated receiving and transmitting separated microwave detection antenna is formed in a non-modularized integrated arrangement of the corresponding Doppler microwave detection device, so that the size of the Doppler microwave detection device can be reduced, and meanwhile, the production process of the Doppler microwave detection device is simplified, and the production consumables of the Doppler microwave detection device are reduced.

An object of the present invention is to provide a spatially staggered integrated transmitting/receiving microwave detecting antenna, wherein a state in which both ends of the half-wave dipole radiation source are close to each other within a distance range of λ/128 or more and λ/4 or less is formed by folding back the half-wave dipole radiation source, such that when a phase difference is formed between both ends of the half-wave dipole radiation source based on a corresponding feeding structure, energy coupled between both ends of the half-wave dipole radiation source can be further increased, and then when both ends of the half-wave dipole radiation source are close to the reference ground within a distance range of λ/128 or more, and at least one end thereof is disposed spaced apart from the reference ground within a distance range of λ/6 or less, energy directly coupled between an end of the half-wave dipole radiation source and the reference ground can be reduced, and then can produce more obvious resonance frequency point based on the coupling between the both ends of half-wave oscillator radiation source when forming directional radiation, be favorable to correspondingly guaranteeing detection precision and stability that space staggered formula integrative receiving and dispatching separation microwave detecting antenna is used for receiving and dispatching the doppler microwave of separation and surveys.

An object of the present invention is to provide a spatially staggered type integrated transceiving microwave detecting antenna, wherein the half-wave dipole radiation source is designed to be fed with a single-point feeding structure, and has a feeding point corresponding to the half-wave dipole radiation source, wherein the feeding point is biased to one end of the half-wave dipole radiation source and close to the end, and the corresponding end is named as a feeding end of the half-wave dipole radiation source, so that in a state where the half-wave dipole radiation source is fed with a corresponding excitation signal from the feeding point, two ends of the half-wave dipole radiation source can form a phase difference to be coupled with each other, and form a polarization direction of the half-wave dipole radiation source along the half-wave dipole radiation source from the feeding point in a direction away from the feeding end, wherein in the single-point feeding configuration of the half-wave dipole radiation source, two ends of the half-wave dipole radiation source are preferably equal to or greater than λ/128 and equal to or less than λ ^ λ/128 and ^ λ/128 and ^ λ/λ 6 to ensure the mutual coupling energy between the two ends of the half-wave oscillator radiation source and the resonance characteristic of the antenna formed by the half-wave oscillator radiation source and the reference ground in the single-point feeding form of the half-wave oscillator radiation source.

An object of the present invention is to provide a spatially staggered integrated transceiving split microwave detecting antenna, wherein in a single-point feeding configuration of the half-wave oscillator radiation source, a distance between the feeding end of the half-wave oscillator radiation source and the reference ground is less than or equal to a distance between the other end of the half-wave oscillator radiation source and the reference ground, so as to prevent a vector cancellation between an electric field between two end portions of the half-wave oscillator radiation source and the reference ground and an electric field between two end portions of the half-wave oscillator radiation source, and reduce energy directly coupled between two end portions of the half-wave oscillator radiation source and the reference ground to ensure energy mutually coupled between two end portions of the half-wave oscillator radiation source, thereby ensuring gain and resonance characteristics of an antenna formed by the half-wave oscillator radiation source and the reference ground.

An object of the present invention is to provide a spatially staggered integrated transceiving split microwave detecting antenna, wherein in a single-point feeding configuration of the half-wave oscillator radiation source, a distance between the feeding end of the half-wave oscillator radiation source and the reference ground is preferably smaller than a distance between the other end of the half-wave oscillator radiation source and the reference ground, so that when the feeding point feeds the half-wave oscillator radiation source, a hierarchical distribution with a current density from high to low can be formed in the half-wave oscillator radiation source in a direction from the other end of the half-wave oscillator radiation source to the reference ground, thereby facilitating further reduction of energy directly coupled between two end portions of the half-wave oscillator radiation source and the reference ground, and vector superposition of an electric field between two end portions of the half-wave oscillator radiation source and the reference ground and an electric field between two end portions of the half-wave oscillator radiation source, and further improving the gain of the antenna formed by the half-wave oscillator radiation source and the reference ground while generating an obvious resonance frequency point.

An object of the present invention is to provide a spatially staggered integrated transceiving split microwave detecting antenna, wherein in the single-point feeding mode of the half-wave oscillator radiation source, a feeder line extends from the feeding point of the half-wave oscillator radiation source in the single-point feeding mode in the direction towards the reference ground from the spatial staggered integrated transceiving split microwave detection antenna, i.e. the feed line extends laterally from the feed point of the half-wave dipole radiation source in the direction towards the reference ground, wherein the feed line has an electrical length equal to or greater than 1/128 and equal to or less than 1/4 wavelengths, and the excitation signal is connected to the half-wave oscillator radiation source through the feeder line in a state that the half-wave oscillator radiation source is spaced from the reference ground, and the half-wave oscillator is fed at the feeding point of the half-wave oscillator radiation source.

An object of the present invention is to provide a spatially staggered integrated transceiving microwave detecting antenna, wherein in a single-point feeding configuration of the half-wave oscillator radiation source, the feeder line is designed to be thickened with respect to the half-wave oscillator radiation source designed in a columnar strip configuration, so as to improve the structural stability of the spatially staggered integrated transceiving microwave detecting antenna by improving the supporting strength of the feeder line to the half-wave oscillator radiation source while tuning the resonant frequency point of the antenna formed by the half-wave oscillator radiation source and the reference ground to match the corresponding operating frequency based on the thickened design of the feeder line.

An object of the present invention is to provide a spatially staggered integrated transceiving microwave detecting antenna, wherein in a single-point feeding mode of the half-wave oscillator radiation source, the spatially staggered integrated transceiving microwave detecting antenna further includes a microstrip transmission line extending from the feeding line, wherein the microstrip transmission line is spaced from the reference ground within a distance range of λ/16 or less, so as to satisfy a corresponding impedance matching based on a length setting of the microstrip transmission line, and when the half-wave oscillator radiation source is fed by the feeding point of the half-wave oscillator radiation source by sequentially accessing the excitation signal through the microstrip transmission line and the feeding line, a loss of the microstrip transmission line is reduced based on a spaced structural state of the microstrip transmission line from the reference ground within a distance range of λ/16 or less, thereby ensuring that the half-wave oscillator radiation source in a single-point feeding mode forms a single-point feeding mode with the reference ground The gain of the antenna of (1).

An object of the present invention is to provide a spatially staggered type integrated transceiving microwave detecting antenna, wherein the half-wave dipole radiation source is fed in a dual-point feeding configuration, and has two feeding points corresponding to the half-wave dipole radiation source, wherein the half-wave dipole radiation source has an electrical length equal to or greater than 1/6 from any end along the half-wave dipole radiation source to the feeding point close to the end, and has an electrical length equal to or less than 1/4 from one of the feeding points along the half-wave dipole radiation source to the other feeding point, so that when two feeding points are respectively connected to two poles of an excitation signal or connected to an excitation signal having a phase difference to feed the half-wave dipole radiation source, a phase difference tending to reverse phase can be formed between the two ends of the half-wave dipole radiation source to couple with each other, and the polarization direction of the half-wave oscillator radiation source is formed in the connecting line direction of the two ends of the half-wave oscillator radiation source, so that the mutual coupling energy between the two ends of the half-wave oscillator radiation source tends to be maximized, and the gain and the resonance characteristic of the antenna formed by the half-wave oscillator radiation source and the reference ground are guaranteed.

An object of the present invention is to provide a spatially staggered integrated transceiving split microwave detecting antenna, wherein in the double-point feeding mode of the half-wave oscillator radiation source, both ends of the half-wave oscillator radiation source are preferably close to the reference ground in a distance range of more than or equal to lambda/128 and less than or equal to lambda/6 simultaneously, this is done to facilitate the formation of directional radiation based on the coupling between the two ends of the half-wave dipole radiation source having the higher current density distribution and the reference ground, and on the basis of the structural form that the two ends of the half-wave oscillator radiation source are close to each other within the distance range of being more than or equal to lambda/128 and less than or equal to lambda/4, the energy of mutual coupling between the two ends of the half-wave oscillator radiation source in a double-point feeding form is ensured, and the resonance characteristic of the antenna formed by the half-wave oscillator radiation source and the reference ground is ensured.

An object of the present invention is to provide a spatially staggered integrated transmitting/receiving separated microwave detecting antenna, wherein in the dual-point feeding mode of the half-wave oscillator radiation source, both ends of the half-wave oscillator radiation source are preferably close to each other within a distance range of λ/128 or more and λ/6 or less, so as to improve the energy of mutual coupling between both ends of the half-wave oscillator radiation source and improve the resonance characteristics of the antenna formed by the half-wave oscillator radiation source and the ground reference in the dual-point feeding mode of the half-wave oscillator radiation source.

An object of the present invention is to provide a spatially staggered integrated transceiving microwave detecting antenna, wherein in a dual-point feeding mode of the half-wave oscillator radiation source, a feeding line extends from two feeding points of the half-wave oscillator radiation source in the dual-point feeding mode, i.e. the two feeding lines extend from the two feeding points of the half-wave oscillator radiation source to the half-wave oscillator radiation source, so that in a state where the half-wave oscillator radiation source is spaced from the reference ground, two poles of the excitation signal are connected through the two feeding lines or an opposite-phase excitation signal is connected to the two feeding points of the half-wave oscillator radiation source to feed the half-wave oscillator radiation source.

An object of the present invention is to provide a spatially staggered integrated transceiving split microwave detecting antenna, wherein in a dual-point feeding configuration of the half-wave oscillator radiation source, two feeder lines extend from two feeding points of the half-wave oscillator radiation source in a direction facing to the reference ground in sequence, so that the two feeder lines have two feeding sections close to each other within a distance range smaller than a distance between the two feeding points of the half-wave oscillator radiation source, thereby facilitating to reduce loss caused by mutual coupling between the two feeder lines, and correspondingly ensuring gain and resonance stability of an antenna formed by the half-wave oscillator radiation source and the reference ground.

An object of the present invention is to provide a spatially staggered integrated transceiving microwave detecting antenna, wherein in a dual-point feeding mode of the half-wave oscillator radiation source, two ends of the two feeder lines, which are connected to the excitation signal, are bent and extended in a direction away from each other to the corresponding feeding sections, so as to form a state in which a distance between the two ends of the two feeder lines, which are connected to the excitation signal, is greater than a distance between the two feeding sections, thereby when the two ends of the two feeder lines, which are connected to the excitation signal, are fixed and electrically connected, respectively, avoiding electrical contact between the two feeder lines, ensuring a yield of the spatially staggered integrated transceiving microwave detecting antenna, and enhancing a stability of the half-wave oscillator radiation source supported by the feeder lines.

An object of the present invention is to provide a spatially staggered integrated transceiving split microwave detecting antenna, wherein in the double-point feeding mode of the half-wave oscillator radiation source, under the action of a high-frequency excitation signal, two feeding sections close to each other within a distance range smaller than the distance between the two feeding points of the half-wave oscillator radiation source can equivalently form electric connection to the two feeding points, the half-wave oscillator radiation source comprises a feed line, a feed point, a feed line, a phase difference and a phase difference, wherein the feed point is arranged between the feed point and the feed point, the feed point is electrically coupled with the feed line, and the feed point is electrically coupled with the feed line.

An object of the present invention is to provide a spatially staggered integrated transceiving split microwave detecting antenna, wherein in the double-point feeding mode of the half-wave oscillator radiation source, when the part between the two feeding points of the half-wave oscillator radiation source is cut off, the radiation source corresponding to the half-wave oscillator is provided with two coupling sections which respectively extend by taking two ends of the radiation source as ends, wherein the other end of each coupling section located at the corresponding feeding point is named as a feeding end of the coupling section, the distance between the two feeding ends is less than or equal to lambda/4, wherein both of said coupling sections are preferably arranged in a vertical orientation towards said reference ground, such as to facilitate balancing of the electric field distribution between said half-wave oscillator radiation source and said reference ground, thereby balancing the radiation distribution of the antenna formed by the half-wave oscillator radiation source and the reference ground in the directional radiation direction.

An object of the present invention is to provide a spatially staggered integrated transceiving and separating microwave detecting antenna, wherein in a single-point feeding mode or a double-point feeding mode of a half-wave oscillator radiation source, by a branch load design of the half-wave oscillator radiation source, a resonant frequency point of an antenna formed by the half-wave oscillator radiation source and the reference ground can be designed to match with a corresponding working frequency point, thereby facilitating to ensure an anti-interference performance of the spatially staggered integrated transceiving and separating microwave detecting antenna, and simultaneously being simple and easy, and facilitating to ensure consistency and reliability of the spatially staggered integrated transceiving and separating microwave detecting antenna in mass production.

An object of the present invention is to provide a spatially staggered integrated transceiving split microwave detecting antenna, wherein in the single-point feeding mode or double-point feeding mode of the half-wave oscillator radiation source, under the limitation of the fixed connection relationship between the half-wave oscillator radiation source and the branch load, the resonance frequency point of the antenna formed by the half-wave oscillator radiation source and the reference ground is determined by the electrical lengths of the half-wave oscillator radiation source and the branch load, in a state that the electrical lengths and the mutual connection relations of the half-wave oscillator radiation source and the branch loads are kept unchanged, the working parameters of the antenna formed by the half-wave oscillator radiation source and the reference ground are difficult to influence based on batch production errors and light deformation of the half-wave oscillator radiation source formed in daily use, and the corresponding space staggered integrated transceiving separated microwave detection antenna has good consistency and stability.

According to an aspect of the present invention, there is provided a spatially staggered integrated transceiving and separating microwave detecting antenna, comprising:

a reference ground; and

two radiation sources, wherein one of the radiation sources is configured as a half-wave oscillator radiation source of a single-point feeding configuration, the other is configured as one of a half-wave oscillator radiation source of a flat-plate radiation source and a double-point feeding configuration, and the half-wave oscillator radiation source of the single-point feeding configuration, wherein the half-wave oscillator radiation source of the single-point feeding configuration is configured in a columnar strip configuration and has an electrical length equal to or greater than 1/2 and equal to or less than 3/4, and has two ends which are close to each other within a distance range equal to or greater than λ/128 and equal to or less than λ/6, and is spaced from the reference ground by a distance equal to or greater than λ/128 between the two ends and the reference ground, and wherein the half-wave oscillator radiation source of the single-point feeding configuration has a first feeding point, the first feeding point is deviated from one end of the single-point feeding type half-wave oscillator radiation source, the end is named as a first feeding end correspondingly, the distance between the first feeding end and the reference ground is smaller than or equal to the distance between the other end of the single-point feeding type half-wave oscillator radiation source and the reference ground, so that the single-point feeding type half-wave oscillator radiation source is in a state that the first feeding point is connected with a corresponding excitation signal to be fed, two ends of the single-point feeding type half-wave oscillator radiation source can form phase difference to be coupled with each other, and the single-point feeding type half-wave oscillator radiation source has a polarization direction from the first feeding point along the direction of the single-point feeding type half-wave oscillator radiation source away from the first feeding end; wherein the half-wave oscillator radiation source of the double-point feeding form is arranged in a columnar long strip form and has an electrical length of 1/2-3/4 wavelength, and has two ends which are close to each other within a distance range of λ/128- λ/4, and is spaced from the reference ground in a state that the distance between the two ends and the reference ground is λ/128- λ/6, wherein the half-wave oscillator radiation source of the double-point feeding form has two second coupling sections extending with the two ends as ends, wherein each second coupling section has an electrical length of 1/6 wavelength or more, the other end of each corresponding second coupling section is named as a second feeding end, wherein the distance between the two second feeding ends is λ/4 or less, and wherein the distance between each second feeding end and the reference ground is greater than the half-length of the double-point feeding form The distance between the two ends of the wave oscillator radiation source and the reference ground is in a state that the half-wave oscillator radiation in the double-point feed mode originates from two poles of two second feed ends which are connected with excitation signals or is connected with the excitation signals with phase difference, the two ends of the half-wave oscillator radiation source in the double-point feed mode can form phase difference to be mutually coupled, and the connecting line direction of the two ends of the half-wave oscillator radiation source corresponding to the double-point feed mode is the polarization direction; the flat radiation source is a metal plate layer designed in a flat shape and is provided with a third feeding point deviated from a physical central point of the flat radiation source, and the connection line direction of the third feeding point to the physical central point of the flat radiation source corresponding to the flat radiation source is a polarization direction; wherein λ is a wavelength parameter corresponding to the frequency of the excitation signal, wherein the two radiation sources of the spatially staggered integrated transceiving and splitting microwave detection antenna are arranged in a staggered manner in the vertical projection space of the reference ground at intervals from the reference ground on the same side of the reference ground in a state of spatially staggering the polarization directions of the two radiation sources, wherein the vertical projection space of the reference ground is a projection space of the reference ground in a direction perpendicular to the reference ground, the structural configuration in which the two radiation sources are arranged in a staggered manner in the vertical projection space of the reference ground corresponds to the vertical projection of the corresponding flat radiation source on the reference ground, the vertical projection of the half-wave oscillator radiation source in the single-point feeding configuration on the reference ground, and the intersection relationship between the connecting line segments at the two ends of the half-wave oscillator radiation source in the double-point feeding configuration on the vertical projection of the reference ground, and the receiving and transmitting separated microwave detection antenna is formed in a structural form that the two radiation sources integrally share the reference ground and the two radiation sources which are staggered in space integrally share the reference ground corresponding to the state that one radiation source is transmitted and fed and the other radiation source is received and fed.

In an embodiment, the polarization directions of the two radiation sources of the spatially staggered integrated transceiving and separating microwave detecting antenna are in a state of spatial orthogonality.

In an embodiment, the spatially interleaved unified transmitting/receiving split microwave detecting antenna has a first feeding line extending from the first feeding point of the half-wave dipole radiation source in the single-point feeding configuration toward the reference ground, wherein the first feeding line extends from the first feeding point to the half-wave dipole radiation source in the single-point feeding configuration, and is configured to have an electrical length equal to or greater than 1/128 and equal to or less than 1/4 wavelength.

In an embodiment, the spatially staggered integrated transceiving split microwave detecting antenna has at least one branch load extending between two ends of the half-wave dipole radiation source in the single-point feeding configuration.

In one embodiment, the half-wave oscillator radiation source in the single-point feeding mode has two first coupling sections extending in the same direction parallel to the reference ground direction with both ends thereof as ends, and a first connecting section connected between the two first coupling sections in the direction perpendicular to the reference ground direction.

In an embodiment, the first feed line has a thickened dimension with respect to the first coupling section in the direction of extension of the two first coupling sections.

In an embodiment, the spatially interleaved unified transmitting/receiving microwave detecting antenna has a microstrip transmission line extending from an end of the first feeding line away from the first feeding point, wherein the microstrip transmission line is spaced from the reference ground within a distance range of λ/16 or less.

In one embodiment, at least one of the leg loads is disposed to extend from the first connecting section in a direction toward the reference ground.

In one embodiment, the leg load extending from the first connecting section in the direction toward the reference ground is configured to extend to be electrically connected to the reference ground.

In an embodiment, a physical length of the first coupling section extending from the first feeding end is smaller than a physical length of the other first coupling section, so that two ends of the half-wave oscillator radiation source in the single-point feeding form maintain a staggered structural state in a direction perpendicular to the reference ground.

In an embodiment, wherein the first feeding point is located at the first feeding end.

In an embodiment, one of the radiation sources of the spatially interleaved integrally transceiving and separating microwave detecting antenna is set to be the half-wave dipole radiation source of the single-point feeding configuration, and the other radiation source of the spatially interleaved integrally transceiving and separating microwave detecting antenna is set to be the flat radiation source.

In one embodiment, the flat panel radiation source is grounded by electrically connecting a physical center point of the flat panel radiation source to the ground reference through a connection structure of a metalized via.

In an embodiment, one of the radiation sources of the spatially staggered integral transceiving and splitting microwave detecting antenna is set to be the half-wave oscillator radiation source in the single-point feeding mode, and the other radiation source of the spatially staggered integral transceiving and splitting microwave detecting antenna is set to be the half-wave oscillator radiation source in the double-point feeding mode.

In an embodiment, the spatially staggered integral transceiving microwave detecting antenna has a second feeding line respectively extending from the two second feeding ends of the half-wave dipole radiation source in the dual-point feeding mode, wherein the half-wave dipole radiation source in the single-point feeding mode and the half-wave dipole radiation source in the dual-point feeding mode are staggered on the same side of the reference ground in a state of passing through a gap between the two second feeding lines, and a state of spatially orthogonal to the polarization direction of the half-wave dipole radiation source in the single-point feeding mode is formed at the same time.

In one embodiment, the distance between two ends of the half-wave oscillator radiation source in the double-point feeding mode is greater than or equal to λ/128 and less than or equal to λ/6.

In one embodiment, the two second feeding lines extend from the two second feeding ends in sequence in a direction toward the reference ground, so that the two second feeding lines have two feeding sections close to each other within a distance range smaller than the distance between the two second feeding ends.

In one embodiment, two ends of the two second power supply lines, which are connected to the excitation signal, are bent and extended in a direction away from each other in the corresponding power supply section, so as to form a state in which a distance between the two ends of the two second power supply lines, which are connected to the excitation signal, is greater than a distance between the two power supply sections.

In an embodiment, the half-wave oscillator radiation source in the double-point feeding configuration further includes a second connection section, wherein two ends of the second connection section are respectively connected to the two second feeding ends and have a wavelength electrical length less than or equal to 1/4.

In an embodiment, two of the second coupling sections extend in the same direction from two ends of the half-wave oscillator radiation source in the double-point feeding mode in a direction perpendicular to and away from the reference ground.

In an embodiment, the spatially staggered integrated transceiving split microwave detecting antenna has at least one branch load extending from the half-wave dipole radiation source in the dual-point feeding mode.

In an embodiment, one of the radiation sources of the spatially staggered integral transceiving and splitting microwave detecting antenna is set as the half-wave dipole radiation source in the single-point feeding configuration, and the other radiation source of the spatially staggered integral transceiving and splitting microwave detecting antenna is set as the half-wave dipole radiation source in the other single-point feeding configuration, wherein the two half-wave dipole radiation sources in the single-point feeding configuration are staggered on the same side of the reference ground in a state where the half-wave dipole radiation source in the single-point feeding configuration passes through a gap between two ends of the half-wave dipole radiation source in the other single-point feeding configuration, so as to form a state where polarization directions of the two half-wave dipole radiation sources in the single-point feeding configuration are spatially orthogonal.

Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.

Drawings

Fig. 1A is a schematic structural diagram of a microwave detecting antenna with a conventional cylindrical radiation source structure.

Fig. 1B is a radiation pattern of the microwave detecting antenna of the cylindrical radiation source structure.

Fig. 1C is a S11 curve of the microwave detection antenna of the cylindrical radiation source structure.

Fig. 2 is a schematic structural diagram of a microwave detection antenna of a conventional flat-panel radiation source structure.

Fig. 3A is a schematic diagram of a modified exploration structure of the microwave detection antenna based on the cylindrical radiation source structure.

Fig. 3B is a radiation pattern of the above-described modified probe structure.

Fig. 3C is a S11 curve of the above-described modified structure.

Fig. 4A is a schematic structural diagram of another modified microwave detecting antenna based on the cylindrical radiation source structure.

Fig. 4B is a radiation pattern of the above-described modified probe structure.

Fig. 4C is a S11 curve of the above-described modified structure.

Fig. 5A is a schematic diagram of the phase distribution principle of a half-wave oscillator radiation source of the spatially staggered integrated transceiving and splitting microwave detecting antenna according to the present invention in a corresponding feeding manner.

Fig. 5B is a schematic structural principle diagram of the antenna formed by the half-wave dipole radiation source and a reference ground in a single-point feeding mode according to the present invention.

Fig. 5C is a schematic diagram of the structural principle of the antenna formed by the half-wave dipole radiation source and the reference ground in a double-point feeding mode.

Fig. 6A is a schematic partial structural diagram of a spatially-staggered integrated transceiving split microwave detecting antenna according to an embodiment of the present invention.

Fig. 6B is a radiation pattern of the portion of the spatially interleaved integrative transceiver-splitter microwave detecting antenna according to the above embodiment of the present invention.

Fig. 6C is a S11 curve of the portion of the spatially interleaved unified transmitting/receiving split microwave probe antenna according to the above embodiment of the present invention.

Fig. 7A is a schematic tuning structure diagram of the portion of the spatially interleaved integrative transceiving splitting microwave detecting antenna according to the above embodiment of the present invention.

Fig. 7B is a radiation pattern of the tuning structure of the portion of the spatially interleaved unified transmitting-receiving-splitting microwave detecting antenna according to the embodiment of the present invention.

Fig. 7C is a S11 curve of the tuning structure of the portion of the spatially interleaved unified transmitting-receiving split microwave probe antenna according to the above embodiment of the present invention.

Fig. 8A is another tuning structure diagram of the portion of the spatially interleaved unified transmitting-receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 8B is a radiation pattern of the tuning structure of the portion of the spatially interleaved unified transmitting/receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 8C is a S11 curve of the tuning structure of the portion of the spatially interleaved unified transmitting-receiving split microwave probe antenna according to the above embodiment of the present invention.

Fig. 9A is another tuning structure diagram of the portion of the spatially interleaved integrative transceiving splitting microwave detecting antenna according to the above embodiment of the present invention.

Fig. 9B is a radiation pattern of the tuning structure of the portion of the spatially interleaved unified transmitting/receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 9C is a S11 curve of the tuning structure of the portion of the spatially interleaved unified transmitting-receiving split microwave probe antenna according to the above embodiment of the present invention.

Fig. 10A is another tuning structure diagram of the portion of the spatially interleaved unified transmitting-receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 10B is a radiation pattern of the tuning structure of the portion of the spatially interleaved unified transmitting/receiving split microwave detecting antenna according to the embodiment of the present invention.

Fig. 10C is a S11 curve of the tuning structure of the portion of the spatially interleaved unified transmitting-receiving split microwave probe antenna according to the above embodiment of the present invention.

Fig. 11A is a schematic view of a preferred tuning structure of the portion of the spatially interleaved unified transmitting-receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 11B is a schematic size diagram of the preferred tuning structure of the portion of the spatially interleaved unified transmitting-receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 11C is a radiation pattern of the preferred tuning structure of the portion of the spatially interleaved unified transmitting-receiving-splitting microwave detecting antenna according to the above embodiment of the present invention.

Fig. 11D is a two-dimensional radiation pattern of the preferred tuning structure of the portion of the spatially-interleaved unified transmitting-receiving-splitting microwave detection antenna according to the above embodiment of the present invention.

Fig. 11E is a S11 curve of the above preferred tuning structure of the portion of the spatially interleaved unified transmitting-receiving split microwave probe antenna according to the above embodiment of the present invention.

Fig. 12 is another tuning structure diagram of the portion of the spatially interleaved unified transmitting/receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 13A is a schematic perspective view of the preferred tuning structure of the portion of the spatially staggered integrated transmitting-receiving separated microwave detecting antenna according to the embodiment of the present invention, when a position-limiting supporting seat is disposed.

Fig. 13B is a schematic side view of the preferred tuning structure of the portion of the spatially staggered integrated transmitting-receiving separated microwave detecting antenna according to the embodiment of the present invention, when the position-limiting supporting seat is disposed.

Fig. 14A is another tuning structure diagram of the portion of the spatially interleaved unified transmitting-receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 14B is a schematic structural diagram of a modified tuning structure of the portion of the spatially-staggered integrated transmission-reception-separation microwave detecting antenna according to the embodiment of the present invention.

Fig. 15A is a schematic partial structural view of a spatially-staggered integrated transmitting-receiving split microwave detecting antenna according to another embodiment of the present invention.

Fig. 15B is a radiation pattern of the portion of the spatially interleaved unified transmitting/receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 15C is a S11 curve of the portion of the spatially interleaved unified transmitting/receiving split microwave probe antenna according to the above embodiment of the present invention.

Fig. 16A is a schematic tuning structure diagram of the portion of the spatially interleaved integrative transceiving splitting microwave detecting antenna according to the above embodiment of the present invention.

Fig. 16B is a radiation pattern of the tuning structure of the portion of the spatially interleaved unified transmitting/receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 16C is a S11 curve of the tuning structure of the portion of the spatially interleaved unified transmitting-receiving split microwave probe antenna according to the above embodiment of the present invention.

Fig. 17A is another tuning structure diagram of the portion of the spatially interleaved integrative transceiving splitting microwave detecting antenna according to the above embodiment of the present invention.

Fig. 17B is a radiation pattern of the tuning structure of the portion of the spatially interleaved unified transmitting/receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 17C is a S11 curve of the tuning structure of the portion of the spatially interleaved unified transmitting-receiving split microwave probe antenna according to the above embodiment of the present invention.

Fig. 18A is another tuning structure diagram of the portion of the spatially interleaved unified transmitting/receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 18B is a radiation pattern of the tuning structure of the portion of the spatially interleaved unified transmitting/receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 18C is a S11 curve of the tuning structure of the portion of the spatially interleaved unified transmitting-receiving split microwave probe antenna according to the above embodiment of the present invention.

Fig. 19A is another tuning structure diagram of the portion of the spatially interleaved unified transmitting/receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 19B is a radiation pattern of the tuning structure of the portion of the spatially interleaved unified transmitting/receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 19C is a S11 curve of the tuning structure of the portion of the spatially interleaved unified transmitting-receiving split microwave probe antenna according to the above embodiment of the present invention.

Fig. 20A is another tuning structure diagram of the portion of the spatially interleaved unified transmitting/receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 20B is a radiation pattern of the tuning structure of the portion of the spatially interleaved unified transmitting/receiving split microwave detecting antenna according to the above embodiment of the present invention.

Fig. 20C is a S11 curve of the tuning structure of the portion of the spatially interleaved unified transmitting/receiving split microwave probe antenna according to the above embodiment of the present invention.

Fig. 20D is a schematic structural diagram of a modified tuning structure of the portion of the spatially interleaved unified transmitting-receiving-splitting microwave detecting antenna according to the embodiment of the present invention.

Fig. 21A is a schematic structural diagram of a spatially-staggered integrated transmitting-receiving split microwave detecting antenna according to another embodiment of the present invention.

Fig. 21B is a radiation pattern of the spatially staggered integrated transmitting/receiving microwave detecting antenna according to the above embodiment of the present invention.

Fig. 21C is a S11 curve of the spatially interleaved integrative transmitting/receiving microwave detecting antenna according to the above embodiment of the present invention.

Fig. 21D is a S22 curve of the spatially interleaved integrative transmitting/receiving microwave detecting antenna according to the above embodiment of the present invention.

Fig. 22A is a schematic structural diagram of a spatially-staggered integrated transceiving split microwave detecting antenna according to another embodiment of the present invention.

Fig. 22B is a radiation pattern of the spatially staggered integrated transmitting/receiving microwave detecting antenna according to the above embodiment of the present invention.

Fig. 22C is a S11 curve of the spatially interleaved integrative transmitting-receiving separated microwave detecting antenna according to the above embodiment of the present invention.

Fig. 22D is a S22 curve of the spatially interleaved integrative transmitting-receiving separated microwave detecting antenna according to the above embodiment of the present invention.

Fig. 23A is a schematic structural diagram of a spatially-staggered integrated transmitting-receiving split microwave detecting antenna according to another embodiment of the present invention.

Fig. 23B is a radiation pattern of the spatially staggered integrated transmitting/receiving microwave detecting antenna according to the above embodiment of the present invention.

Fig. 23C is a S11 curve of the spatially interleaved integrative transmitting/receiving microwave detecting antenna according to the above embodiment of the present invention.

Fig. 23D is a S22 curve of the spatially interleaved integrative transmitting/receiving microwave detecting antenna according to the above embodiment of the present invention.

Fig. 24A is a schematic structural diagram of a spatially-staggered integrated transmitting-receiving split microwave detecting antenna according to another embodiment of the present invention.

Fig. 24B is a radiation pattern of the spatially staggered integrated transmitting/receiving microwave detecting antenna according to the above embodiment of the present invention.

Fig. 24C is a S11 curve of the spatially interleaved integrative transmitting/receiving microwave detecting antenna according to the above embodiment of the present invention.

Fig. 24D is a S22 curve of the spatially interleaved integrative transmitting/receiving microwave detecting antenna according to the above embodiment of the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.

It is to be understood that the terms "a" and "an" are to be interpreted as meaning "at least one" or "one or more," i.e., that a number of one element may be one in one embodiment, while a number of other elements may be present in multiple embodiments, and that the terms "a" and "an" are not to be interpreted as limiting the number.

Referring to fig. 3A to 4C of the drawings accompanying the present specification, based on the structure of the microwave detecting antenna of the columnar radiation source structure, based on the deformation exploration of bending the columnar radiation source 11A of the microwave detecting antenna 10A of the columnar radiation source structure to bring the end away from the feeding end 111A thereof close to the reference ground 12A within the distance range of λ/128 or more and λ/6 or less, the two deformation exploration structures and the corresponding radiation patterns and S11 curves of bending the columnar radiation source 11A to keep the end away from the feeding end 111A thereof at the distances of λ/6 and λ/128 from the reference ground 12A, respectively, are respectively illustrated, where λ is a wavelength parameter corresponding to the frequency of the corresponding excitation signal.

Compared with fig. 1B, fig. 3B and fig. 4B, as the end of the columnar radiation source 11A far from the feeding end 111A thereof approaches the reference ground 12A, the backward lobe in the direction away from the columnar radiation source 11A in the corresponding radiation space 100A is reduced, and correspondingly, the directional radiation is formed in the direction toward the columnar radiation source 11A (in the Z-axis direction in the figure) in the direction of the reference ground 12A, wherein the formation of the directional radiation is accompanied by the increase of the gain in the direction of the directional radiation and the annihilation of the radiation dead zone. It is worth mentioning that in the practical application of microwave detection, different from the omnidirectional radiation requirement of the communication antenna, the interference of the actual detection area corresponding to the backward lobe to the forward target detection space can be avoided substantially only on the basis of forming directional radiation by the corresponding microwave detection antenna, thereby ensuring the reliability of microwave detection.

However, based on the comparison of fig. 1C, 3C, and 4C, it was found that: with the proximity of the end of the cylindrical radiation source 11A far from the feeding end 111A thereof to the reference ground 12A, no significant resonance characteristic can be exhibited in the corresponding S11 curve, i.e., no significant narrow band trough is present in the S11 diagram. The lower the wave trough of the S11 curve is, the lower the loss of the microwave detection antenna at the resonance frequency point is, and the narrower the working frequency bandwidth at the resonance frequency point is, the better the frequency selection characteristic of the corresponding microwave detection antenna is, and the stronger the anti-interference capability is. It is also worth mentioning that in the practical application of microwave detection, different from the multiband communication requirement of the communication antenna and the wider working frequency bandwidth requirement generated based on the data transmission amount/speed requirement, the corresponding microwave detection antenna requires the resonant frequency point to be matched with the working frequency point, and when the resonant frequency point has narrower frequency bandwidth and smaller loss, the resonant frequency point can resist the external electromagnetic radiation interference due to better frequency selection characteristic, thereby ensuring the reliability of microwave detection.

That is, as the end of the columnar radiation source 11A far from the feeding end 111A thereof approaches the reference ground 12A, the corresponding microwave detection antenna can form directional radiation and is accompanied by the increase of the gain in the directional radiation direction and the annihilation of the radiation dead zone, but is difficult to continue to be suitable for microwave detection due to no significant resonant frequency point, and the reason for analyzing corresponding to fig. 3A and 4A may be that the coupling distance between the end of the columnar radiation source 11A far from the feeding end 111A thereof and the reference ground 12A becomes smaller to facilitate the formation of directional radiation as the end of the columnar radiation source 11A far from the feeding end 111A thereof approaches the reference ground 12A, but the coupling between the columnar radiation source 11A and the reference ground 12A is too concentrated and has a shorter coupling distance, so that the energy distribution of the internal electric field formed by the coupling between the columnar radiation source 11A and the reference ground 12A is too concentrated, and it is difficult to generate a distinct resonance frequency point.

The invention provides a spatial staggered integrated transmitting-receiving separated microwave detection antenna, wherein the spatial staggered integrated transmitting-receiving separated microwave detection antenna comprises a reference ground and two radiation sources, wherein the two radiation sources are derived from the same side of the reference ground and are arranged in a staggered manner in a vertical projection space of the reference ground at intervals with the reference ground, the vertical projection space of the reference ground is a projection space of the reference ground in a direction vertical to the reference ground so as to form a structural form that the two radiation sources integrally share the reference ground, corresponding to a state that one radiation source is transmitted and fed and the other radiation source is received and fed, an antenna formed by one radiation source and the reference ground independently transmits a microwave beam, and an antenna formed by the other radiation source and the reference ground independently receives corresponding reflected echoes, therefore, the receiving and transmitting separated type microwave detection antenna is formed by the structural form that the two radiation sources which are staggered in space integrally share the reference ground, the detection precision and the stability of the spatial staggered type integrated receiving and transmitting separated type microwave detection antenna are guaranteed based on the receiving and transmitting separated mode, meanwhile, the small volume advantage of the spatial staggered type integrated receiving and transmitting separated type microwave detection antenna is guaranteed based on the structural form that the two radiation sources integrally share the reference ground, and the advantages of the existing receiving and transmitting integrated type microwave detection antenna and the existing receiving and transmitting separated type microwave detection antenna are combined.

In view of the above mentioned deformation exploration, the antenna formed by the half-wave oscillator radiation source and the ground reference obtained based on the further improvement of the above deformed structure of the present invention can retain the advantages of the microwave detection antenna of the columnar radiation source structure in structural configuration, and when one of the radiation sources of the spatially staggered integrated transceiving and splitting microwave detection antenna is set as the half-wave oscillator radiation source, the radiation source has a columnar structural configuration and is suitable for being staggered in the vertical projection space of the ground reference at a distance from the ground reference on the same side of the ground reference from which the flat panel radiation source or the half-wave oscillator radiation source originates, and the antenna formed by the half-wave oscillator radiation source and the ground reference can form directional radiation and generate significant resonant frequency points, and avoid forming a detection dead zone in the directional radiation direction, and thus is suitable for both transmit and receive separated doppler microwave detection.

That is to say, one of the radiation sources of the spatially staggered integrated transceiving microwave detection antenna is configured as the half-wave dipole radiation source, and the other radiation source is configured as the flat-plate radiation source or the half-wave dipole radiation source, so that the two radiation sources are structurally designed based on the cylindrical form of the half-wave dipole radiation source, so that the two radiation sources are suitable for being staggered in the vertical projection space of the reference ground on the same side of the reference ground at intervals with the reference ground, and therefore, the two radiation sources based on spatial staggering integrally share the structural form of the reference ground, and the small volume advantage of the spatially staggered integrated transceiving microwave detection antenna is ensured on the basis of not increasing the area of the reference ground; and on the performance basis the half-wave oscillator radiation source and the antenna formed by the reference ground can form directional radiation and generate obvious resonance frequency points, and a detection dead zone is prevented from being formed in the directional radiation direction, so that two radiation sources which are staggered in space integrally share the structural form of the reference ground, and the space staggered type integrated receiving and transmitting separation microwave detection antenna is suitable for receiving and transmitting separation Doppler microwave detection.

Specifically, referring to fig. 5A to 5C of the drawings of the specification of the present invention, the phase distribution of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 when being fed and the structural principle under the corresponding feeding mode are respectively illustrated, wherein the half-wave dipole radiation source 11 has an electrical length greater than or equal to 1/2 and less than or equal to 3/4 wavelength, so as to facilitate forming a phase difference tending to reverse phase between two ends of the half-wave dipole radiation source 11 based on the corresponding feeding structure, and further to maximize the energy mutually coupled between two ends of the half-wave dipole radiation source 11 to ensure the gain and resonance characteristics of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12.

Further, at least one end of the half-wave dipole radiation source 11 is close to the reference ground 12 within a distance range of λ/128 or more and λ/6 or less, so as to facilitate forming of directional radiation based on coupling between the end of the half-wave dipole radiation source 11 having a higher current density distribution and the reference ground 12, and under the precondition of forming of directional radiation, the area requirement on the reference ground 12 is reduced based on maximization of mutual coupling energy between two ends of the half-wave dipole radiation source 11, so as to facilitate miniaturization of the spatially staggered integrated transceiving split microwave detection antenna in a state where the two radiation sources of the spatially staggered integrated transceiving split microwave detection antenna are respectively disposed with the half-wave dipole radiation source 11.

It is worth mentioning that, under the precondition of forming directional radiation, based on the fact that the two ends of the half-wave dipole radiation source 11 can be coupled with each other and have coupling energy tending to maximize, the electrical parameter requirement of the reference ground 12 is reduced, that is, the reference ground 12 allows other components to be arranged without affecting the normal operation of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12, so that the two radiation sources of the spatially staggered integrated transceiving split microwave detecting antenna are respectively arranged in the state of the half-wave dipole radiation source 11, allowing the reference ground 12 to be formed on the circuit board in a copper-clad layer state and the half-wave dipole radiation source 11 to be fixed on the circuit board in an electrically connected state of being coupled with the corresponding main circuit feed under the limitation of the size and material of the circuit board, the space staggered integrated receiving and transmitting separated microwave detection antenna is formed in a non-modularized integrated arrangement of the corresponding Doppler microwave detection device, so that the size of the Doppler microwave detection device can be reduced, and meanwhile, the production process of the Doppler microwave detection device is simplified, and the production consumables of the Doppler microwave detection device are reduced.

Further, by folding back the half-wave oscillator radiation source 11, a state is formed in which both ends of the half-wave oscillator radiation source 11 are close to each other within a distance range of λ/128 or more and λ/4 or less, such that when a phase difference is formed between both ends of the half-wave oscillator radiation source 11 based on the corresponding feeding structure, energy coupled to each other between both ends of the half-wave oscillator radiation source 11 can be further increased, and then when the half-wave oscillator radiation source 11 is close to the reference ground 12 with both ends thereof within a distance range of λ/128 or more, and at least one of them is disposed spaced apart from the reference ground 12 in a state of being close to the reference ground 12 within a distance range of λ/6 or less, energy directly coupled between an end of the half-wave oscillator radiation source 11 and the reference ground 12 can be reduced, and then can produce more obvious resonance frequency point based on the coupling between the both ends of half-wave oscillator radiation source 11 when forming directional radiation, be favorable to correspondingly guaranteeing detection precision and stability that space staggered formula integrative receiving and dispatching separation microwave detecting antenna is used for receiving and dispatching the doppler microwave of separation to survey.

It should be noted that the half-wave dipole radiation source 11 can form a definite polarization direction with respect to the columnar radiation source, and the two radiation sources corresponding to the spatially staggered integrated transceiving and separating microwave detecting antenna are suitable for being staggered in the vertical projection space of the reference ground 12 at intervals with the reference ground 12 on the same side of the reference ground 12 in a state where the polarization directions of the two radiation sources are orthogonal, so as to ensure the isolation between the two spatially staggered radiation sources and the antenna formed by the reference ground 12, respectively, and further ensure the detection accuracy and stability of the spatially staggered integrated transceiving and separating microwave detecting antenna when the spatially staggered integrated transceiving and separating microwave detecting antenna is used for transceiving and separating doppler microwave detection.

In addition, the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 can form directional radiation, and under the same area condition of the reference ground 12, the gain of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 in the directional radiation direction can be increased by multiple times relative to the microwave detection antenna of the columnar radiation source structure, so that the detection distance and the detection sensitivity of the spatially staggered integrated transceiving and separation microwave detection antenna can be improved under the same power limitation, or the power consumption of the spatially staggered integrated transceiving and separation microwave detection antenna can be reduced under the same detection distance and detection sensitivity limitation.

Further, in a structure form that the two ends of the half-wave oscillator radiation source 11 are folded back in a state of being close to each other within a distance range of λ/128 or more and λ/4 or less, and in a state that the two ends of the half-wave oscillator radiation source 11 are close to the reference ground 12 within a distance range of λ/128 or more, and at least one end of the half-wave oscillator radiation source 11 is close to the reference ground 12 within a distance range of λ/6 or less, a structure form that is greatly reduced in height relative to the microwave detection antenna of the columnar radiation source structure can be formed in a height direction perpendicular to the reference ground 12, thereby facilitating further miniaturization design of the spatially staggered integrated transceiving and separation microwave detection antenna.

Specifically referring to fig. 5B of the drawings of the specification of the present invention, the half-wave oscillator radiation source 11 is designed to be fed with a single-point feeding configuration, and has a feeding point 110 corresponding to the half-wave oscillator radiation source 11, wherein the feeding point 110 is biased to one end of the half-wave oscillator radiation source 11 and close to the end, and the corresponding end is named as a feeding end 111 of the half-wave oscillator radiation source 11, so that in a state where the half-wave oscillator radiation source 11 is fed with a corresponding excitation signal at the feeding point 110, two ends of the half-wave oscillator radiation source 11 can be coupled to each other with a phase difference, and form a polarization direction of the half-wave oscillator radiation source 11 along the half-wave oscillator radiation source 11 in a direction away from the feeding end 111 from the feeding point 110, wherein in the single-point feeding configuration of the half-wave oscillator radiation source 11, both ends of the half-wave oscillator radiation source 11 are preferably close to each other within a distance range of λ/128 or more and λ/6 or less, so that in a single-point feeding mode of the half-wave oscillator radiation source 11, the energy mutually coupled between both ends of the half-wave oscillator radiation source 11 is ensured, and the resonance characteristic of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 is ensured.

Particularly, in the single-point feeding mode of the half-wave oscillator radiation source 11, the distance between the feeding end 111 of the half-wave oscillator radiation source 11 and the reference ground 12 is less than or equal to the distance between the other end and the reference ground 12, so as to avoid the vector cancellation between the electric field between the two end portions of the half-wave oscillator radiation source 11 and the electric field between the two end portions of the reference ground 12, and reduce the energy directly coupled between the two end portions of the half-wave oscillator radiation source 11 and the reference ground 12 to ensure the energy mutually coupled between the two end portions of the half-wave oscillator radiation source 11, thereby ensuring the gain and the resonance characteristic of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 while forming the directional radiation.

Preferably, in the single-point feeding mode of the half-wave oscillator radiation source 11, the distance between the feeding end 111 of the half-wave oscillator radiation source 11 and the reference ground 12 is smaller than the distance between the other end and the reference ground 12, so that when the feeding point 110 feeds the half-wave oscillator radiation source 11, a hierarchical distribution with current density from high to low is formed in the half-wave oscillator radiation source 11 in the direction from the other end of the half-wave oscillator radiation source 11 to the reference ground 12, which is beneficial to further reducing the energy directly coupled between the two end portions of the half-wave oscillator radiation source 11 and the reference ground 12, and the electric field between the two end portions of the half-wave oscillator radiation source 11 and the reference ground 12 is formed to be superimposed with the vector of the electric field between the two end portions of the half-wave oscillator radiation source 11 and the reference ground, thereby further improving the vector superposition of the half-wave oscillator radiation source 11 and the reference ground while generating an obvious resonance frequency point The gain of the antenna formed by facet 12.

Further referring to fig. 5C of the drawings accompanying the present specification, the half-wave oscillator radiation source 11 is designed to be fed in a double-point feeding configuration, and has two feeding points 110 corresponding to the half-wave oscillator radiation source 11, wherein the half-wave oscillator radiation source 11 has an electrical length equal to or greater than 1/6 from any end along the half-wave oscillator radiation source 11 to the feeding point 110 near the end, and has an electrical length equal to or less than 1/4 from one of the feeding points 110 along the half-wave oscillator radiation source 11 to the other feeding point 110, so that when two poles of an excitation signal are respectively connected or an excitation signal having a phase difference is connected to feed the half-wave oscillator radiation source, a phase difference tending to reverse phase can be formed between the two ends of the half-wave oscillator radiation source 11 to couple each other, and the polarization direction of the half-wave oscillator radiation source 11 is formed in the direction of the connecting line of the two ends of the half-wave oscillator radiation source 11, so that the mutual coupling energy between the two ends of the half-wave oscillator radiation source 11 tends to be maximized, and the gain and the resonance characteristics of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 are ensured.

In other words, the half-wave oscillator radiation source 11 has two coupling sections 112 extending from two ends of the coupling section 110 and a connection section 113 connected between the two coupling sections 112, wherein the coupling section 112 has an electrical length equal to or greater than 1/6 wavelength from the end of the coupling section 110, and the connection section 113 has an electrical length equal to or less than 1/4 wavelength from the end of the coupling section 110, and one end of the coupling section 112 from the end of the feeding section 110 is named as the feeding end 111 of the coupling section 112, that is, the other ends of the two coupling sections 112 are two ends of the half-wave oscillator radiation source 11 and are close to each other in a distance range equal to or greater than λ/128 and equal to or less than λ/4, and have a distance equal to or greater than λ/128 and equal to or less than λ/6 from the reference ground 12, corresponding to the physical distance between the two feeding ends 111 being less than or equal to lambda/4, wherein the connecting section 113 is connected between the two feeding ends 111, when the two feeding ends 111 are respectively connected with two poles of an excitation signal or connected with an excitation signal with phase difference to feed the half-wave oscillator radiation source 11, a phase difference tending to be in opposite phase can be formed between both ends of the half-wave oscillator radiation source 11, thereby being beneficial to maximizing the energy mutually coupled between the two coupling sections 112 of the half-wave oscillator radiation source 11 and improving the gain of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12, and generating obvious resonance frequency points in a state that the distance ranges from λ/128 to λ/6 are close to the reference ground 12 at two ends of the half-wave oscillator radiation source 11.

In particular, in the double-point feeding configuration of the half-wave dipole radiation source 11, both ends of the half-wave dipole radiation source 11 are preferably close to the reference ground 12 at the same time in a distance range of λ/128 or more and λ/6 or less, so as to facilitate securing of formation of directional radiation based on coupling between both ends of the half-wave dipole radiation source 11 having a higher current density distribution and the reference ground 12, and securing of resonance characteristics of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 based on a structural configuration in which both ends of the half-wave dipole radiation source 11 are close to each other in a distance range of λ/128 or more and λ/4 or less, securing of mutual coupling energy between both ends of the half-wave dipole radiation source 11 in the double-point feeding configuration.

Preferably, in the double-point feeding mode of the half-wave oscillator radiation source 11, the distance between the feeding point 110 of the half-wave oscillator radiation source 11 and the reference ground 12 is greater than the distance between both ends of the half-wave oscillator radiation source 11 and the reference ground 12, and in a state where both ends of the half-wave oscillator radiation source 11 are close to the reference ground 12 within a distance range of λ/128 or more and λ/6 or less, a state where both ends of the half-wave oscillator radiation source 11 face the reference ground 12 is formed based on the elevation of the feeding point 110 with respect to both ends of the half-wave oscillator radiation source 11 in a direction away from the reference ground 12, so as to balance the electric field distribution between the half-wave oscillator radiation source 11 and the reference ground 12 and further increase the energy coupled between both ends of the half-wave oscillator radiation source 11, therefore, while the radiation distribution of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 in the directional radiation direction is balanced, the resonance stability and the radiation gain in the directional radiation direction of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 can be guaranteed.

For example, referring to fig. 6A to 14B of the drawings of the present specification, based on the structural principle of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 in the single-point feeding mode of the half-wave dipole radiation source 11 illustrated in fig. 5B, the radiation pattern and S11 curve of the spatially interleaved integrated transmitting/receiving and separating microwave detection antenna corresponding to different structural modes and partial structural modes of the antenna formed by the radiation source 11 and the reference ground 12 are illustrated, respectively, in the structural state of the half-wave dipole radiation source 11 in which one of the radiation sources 11 is set to the single-point feeding mode.

Corresponding to fig. 6A to 6C, the spatial structure and radiation pattern of the antenna formed by the half-wave dipole radiation source 11 corresponding to the single-point feeding configuration of the spatially staggered all-in-one transceiving split microwave detecting antenna and the reference ground 12 and the S11 curve are respectively illustrated, wherein in this structural example of the present invention, the feeding point 110 is located at the feeding end 111, and the spatially staggered all-in-one transceiving split microwave detecting antenna extends from the feeding point 110 of the half-wave dipole radiation source 11 in the single-point feeding configuration to the side of the feeding end 111, i.e. the feeding line 13 extends from the feeding point 110 of the half-wave dipole radiation source 11 in the single-point feeding configuration to the side of the half-wave dipole radiation source 11 in the direction of the reference ground 12, so as to be in a state where the half-wave dipole radiation source 11 in the single-point feeding configuration is spaced from the reference ground 12, the excitation signal is fed through the feeder line 13, and the half-wave oscillator is fed at the feeding point 110 of the half-wave oscillator radiation source 11 in a single-point feeding mode.

In particular, in this structural example of the present invention, the feed line 13 integrally extends from the feed point 110 of the half-wave oscillator radiation source 11 in the single-point feed configuration to the half-wave oscillator radiation source 11, and the structure of the half-wave oscillator radiation source 11 in the single-point feed configuration is defined in the description of "the half-wave oscillator radiation source 11 has an electrical length of 1/2 or more and 3/4 wavelength or less" both ends of the half-wave oscillator radiation source 11 are close to each other in a distance range of λ/128 or more and λ/6 or less "and" the half-wave oscillator radiation source 11 is close to the reference ground 12 in a distance range of λ/128 or more and at least one end thereof is provided at a distance from the reference ground 12 in a distance range of λ/6 or less "," the half-wave oscillator radiation source 11 in the single-point feed configuration is defined in the description, in a state where the feeding line 13 is electrically connected to the feeding terminal 111 of the half-wave oscillator radiation source 11 in the single-point feeding mode, the definition of the feeding terminal 111 of the half-wave oscillator radiation source 11 in the single-point feeding mode may not be unique, that is, there may be a plurality of positions of the feeding terminal 111 on the half-wave oscillator radiation source 11 in the single-point feeding mode, which satisfy the above description.

Therefore, it is worth mentioning that the end of the half-wave oscillator radiation source 11 opposite to the feeding end 111 in the single-point feeding form is a definite end, and when the feeding end 111 meeting the above description exists on the half-wave oscillator radiation source 11, the two ends of the half-wave oscillator radiation source 11 can be coupled with each other and have relatively high coupling energy, so that an obvious resonant frequency point can be generated based on the coupling between the two ends of the half-wave oscillator radiation source 11 while forming directional radiation.

Preferably, in this structural example of the present invention, the feeder line 13 is set to have an electrical length of 1/4 or less, so as to reduce the coupling between the feeder line 13 and the reference ground 12, thereby being beneficial to ensuring the electric field energy distribution formed by the coupling between the half-wave oscillator radiation source 11 in a single-point feeding configuration and the reference ground 12, which is different from the coupling between the microwave detection antenna 10A of the cylindrical radiation source structure, and further being beneficial to forming directional radiation and generating a significant resonant frequency point, and simultaneously improving the gain of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12, and avoiding the formation of a detection dead zone in the directional radiation direction.

Further, the power feeding line 13 is provided with an electrical length equal to or greater than 1/128 wavelength, so that a state in which the half-wave oscillator radiation source 11 is disposed with both ends spaced from the reference ground 12 in a distance range equal to or greater than λ/128 is formed in a state in which the half-wave oscillator radiation source 11 in a single-point feeding configuration is physically supported by the power feeding line 13 in a medium space of air.

In particular, in this structural example of the present invention, one end of the half-wave oscillator radiation source 11 opposite to the feeding end 111 of the single-point feeding configuration is far away from the reference ground 12 relative to the feeding end 111, that is, the distance between the feeding end 111 of the half-wave oscillator radiation source 11 and the reference ground 12 is smaller than the distance between the other end of the half-wave oscillator radiation source 11 and the reference ground 12, specifically, in a state where the other end of the half-wave oscillator radiation source 11 is far away from the reference ground 12 relative to the feeding end 111, the two ends of the half-wave oscillator radiation source 11 are aligned in a direction perpendicular to the reference ground 12, that is, a connection line of the two ends of the half-wave oscillator radiation source 11 is perpendicular to the reference ground 12, so that a hierarchical distribution of current density from high to low is formed in the half-wave oscillator radiation source 11 in the direction from the other end of the half-wave oscillator radiation source 11 to the reference ground 12, and then, the vector superposition of the electric field between the two end parts of the half-wave oscillator radiation source 11 and the reference ground 12 is formed, so that the gain of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 is improved while an obvious resonance frequency point is generated.

Referring to fig. 6B and 6C of the drawings of the present specification, it can be seen that, with respect to fig. 1B, in the radiation space 100 of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 of the spatially staggered integrated transceiving split microwave detecting antenna of the present invention, the backward lobe (backward direction of the Z axis in the drawing) bounded by the reference ground 12 is reduced, and the radiation gain (in the direction toward the half-wave dipole radiation source 11) bounded by the reference ground 12 is significantly increased (about 6.4dB) to exhibit significant directional radiation (in the direction toward the half-wave dipole radiation source 11) bounded by the reference ground 12. Relative to fig. 1C, the S11 curve exhibits a distinct narrow trough near 6.8 GHz. That is, the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 of the spatially staggered integral transceiving split microwave detecting antenna of the present invention exhibits a significant resonance characteristic, which allows tuning based on a corresponding tuning structure.

Referring further to fig. 7A to 7C of the drawings of the specification of the present invention, based on the further tuning structure of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 of the spatially staggered integrated transceiving microwave detecting antenna illustrated in fig. 6A, unlike the antenna structure illustrated in fig. 6A, in this structure of the present invention, two ends of the half-wave oscillator radiation source 11 in a single-point feeding mode are staggered in a direction perpendicular to the reference ground 12, specifically, the feeding end 111 of the half-wave oscillator radiation source 11 is used as a reference end, the other end of the half-wave oscillator radiation source 11 is offset in an extending direction of the end to form a state in which two ends of the half-wave oscillator radiation source 11 are staggered in a direction perpendicular to the reference ground 12, so that two ends of the half-wave oscillator radiation source 11 are mutually spaced in a distance range of λ/128 and λ/6 or less The state of approach "forms a fine adjustment of the distance between the two ends of the half-wave oscillator radiation source 11, which is equivalent to the form adjustment of the half-wave oscillator radiation source 11.

Referring to fig. 7B and 7C, compared to fig. 6B and 6C, in a state that two ends of the half-wave oscillator radiation source 11 are staggered in a direction perpendicular to the reference ground 12, the resonant frequency point of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 of the spatially staggered integrated transceiving split microwave detecting antenna is adjusted relative to the antenna structure illustrated in fig. 6A, and has a significantly improved radiation gain in a directional radiation direction relative to the antenna structure illustrated in fig. 6A, that is, two ends of the half-wave oscillator radiation source 11 are aligned in the direction perpendicular to the reference ground 12 corresponding to fig. 6A, the feeding end 111 of the half-wave oscillator radiation source 11 is used as a reference end, and the extending direction of the other end of the half-wave oscillator radiation source 11 at the end is offset within a certain range, the antenna has the beneficial effect of improving the radiation gain of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 of the space staggered type integrated transceiving and separating microwave detection antenna in the directional radiation direction.

With continuing reference to fig. 8A to 8C of the drawings of the specification of the present invention, a further tuning structure of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 of the spatially staggered integral transceiving microwave detecting antenna illustrated in fig. 7A is illustrated, wherein in the tuning structure of the present invention, the spatially staggered integral transceiving microwave detecting antenna is further provided with at least one minor load 15, wherein the minor load 15 is loaded on the half-wave dipole radiation source 11, the electrical length setting based on the wavelength of the minor load 15 and the loading position debugging of the half-wave dipole radiation source 11 are performed, the resonant frequency point of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 can be debugged to match with the corresponding working frequency point, and the number of the minor loads 15, The form, electrical length of the wavelength, and the location of the load are various and do not limit the present invention.

In detail, in this tuning structure of the present invention, tuning is performed in an ISM operating frequency band of 5.8GHz, two ends of the half-wave oscillator radiation source 11 are staggered in a direction perpendicular to the reference ground 12 corresponding to fig. 7A, further, one end of the stub load 15 is electrically connected to a position of the half-wave oscillator radiation source 11 biased toward the feeding end 111, and the position of the half-wave oscillator radiation source 11 biased toward the feeding end 111 is loaded on the half-wave oscillator radiation source 11.

Based on the tuning structure, referring to fig. 8B and 8C, compared with fig. 7B and 7C, the tuning structure of the present invention can form matching between the resonant frequency point of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 and the ISM operating frequency band of 5.8GHz, and has further improved radiation gain in the directional radiation direction.

It is worth mentioning that, on the basis of the structure illustrated in fig. 8A, the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 exhibits a distinct resonance characteristic and allows tuning based on a corresponding tuning structure, wherein tuning means for the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 are various and can be combined with each other, and the corresponding tuning means includes, but is not limited to, tuning the electrical length of the half-wave dipole radiation source 11, tuning the electrical length of the feeder 13, and tuning the number, form, electrical length, and load position of the stub loads 15 based on the setting of the stub loads 15, so that the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 based on the single-point feeding form illustrated in fig. 5B has a structural principle of the antenna formed by the half-wave dipole radiation source having a wavelength greater than or equal to 1/2 and less than or equal to 3/4 wavelength The electrical length "and" both ends of the half-wave vibrator radiation source 11 are close to each other in a distance range of λ/128 or more and λ/6 or less "and" the half-wave vibrator radiation source 11 is close to the reference ground with both ends thereof in a distance range of λ/128 or more, and at least one end of the half-wave oscillator radiation source 11 is arranged close to the reference ground 12 in a distance range of less than or equal to lambda/6 and is spaced from the reference ground 12, so that the half-wave oscillator radiation source 11 can present obvious resonance characteristics in various forms and can be adapted to different form requirements, and allows the matching of the resonant frequency points of the antenna structure with the operating frequency points to be formed based on corresponding tuning means, including but not limited to the operating frequency points of ISM bands of 5.8GHz, 10.525GHz, 24.15GHz, 60-62GHz and 77-79 GHz.

With further reference to fig. 9A to 9C of the drawings of the specification of the present invention, a tuning example is also performed in the ISM operating frequency band of 5.8GHz, and by further tuning the stub load 15, another tuning structure of the antenna formed based on the half-wave oscillator radiation source 11 and the reference ground 12 illustrated in fig. 7A is illustrated, wherein, with respect to the tuning structure illustrated in fig. 8A, in this tuning structure of the present invention, the stub load 15 is loaded on the half-wave oscillator radiation source 11 at a position of the half-wave oscillator radiation source 11 biased to the feeding end 111, and has a block-shaped form design, so that a thickened design of the physical form of the half-wave oscillator radiation source 11 is formed at a load position of the stub load 15 loaded on the half-wave oscillator radiation source 11.

Referring to fig. 9B and 9C, the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 based on the above-mentioned structural design has a good directional radiation characteristic because the backward radiation of the antenna is significantly attenuated and has a radiation gain as high as 8dB in the directional radiation direction, and the S11 curve shows a significant resonance characteristic and has a resonance frequency point with a low loss (lower than-30 dB) and a narrow frequency bandwidth at the resonance frequency point, so that the performance is excellent, and the antenna is suitable for microwave detection and has a good anti-interference performance and a high sensitivity and reliability.

With further reference to fig. 10A to 10C of the drawings of the present specification, a further tuning structure of the antenna formed based on the half-wave dipole radiation source 11 and the reference ground 12 illustrated in fig. 8A is illustrated by further tuning the stub load 15, wherein in this tuning structure of the present invention, the tuning structure of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 illustrated in fig. 10A is formed by tuning the form, the electrical length of the wavelength, the load position and the electrical connection relationship of the stub load 15 by combining different tuning means of the stub load 15, specifically, on the basis of the tuning structure illustrated in fig. 8A. In the tuning structure of the present invention, one end of the stub load 15 is electrically connected to the half-wave oscillator radiation source 11 at a position of the half-wave oscillator radiation source 11 biased to the feeding end 111, that is, the load position of the stub load 15 is located at a position of the half-wave oscillator radiation source 11 biased to the feeding end 111, and the other end of the stub load 15 is electrically connected to the reference ground 12.

Referring to fig. 10B and 10C, the electrical connection between the minor-pitch load 15 and the reference ground 12 correspondingly shows an improvement of the quality factor (Q value) of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 due to the reduction of the impedance of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 at the resonant frequency point, so as to narrow the frequency bandwidth of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 at the resonant frequency point (specifically, based on the comparison between fig. 10C and fig. 8C and 9C), which is further beneficial to improving the anti-interference performance of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12, but since the half-wave oscillator radiation source 11 is in the fed state and in the middle region (corresponding to fig. 5A), the load position of the minor-pitch load 15 is biased to the state of the feeding terminal 111, the electrical connection relationship between the minor-length load 15 and the reference ground 12 simultaneously reduces the electric field energy distribution formed by coupling between the half-wave dipole radiation source 11 itself and the reference ground 12, and reduces the radiation efficiency of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12, which is reflected by a reduction in the directional radiation gain of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 (specifically, reflected based on a comparison between fig. 10B and fig. 8B and 9B), but the microwave detection antenna 10A with a cylindrical radiation source structure can still form directional radiation and relatively high radiation gain in the directional radiation direction, and the S11 curve of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 exhibits an obvious resonance characteristic, and the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 has a good selection of the received reflected echo The space staggered type integrated receiving and transmitting and separating microwave detection antenna has high selectivity and high anti-interference capacity, so that the detection precision and stability of the space staggered type integrated receiving and transmitting and separating microwave detection antenna in the receiving and transmitting separation Doppler microwave detection process are guaranteed.

It is worth mentioning that in these tuning structures of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 of the present invention, an electrical length setting for the feed line 13 is formed based on the setting of the form of the feed line 13, and in a state of maintaining the aforementioned distance range between the feed end 111 of the half-wave oscillator radiation source 11 and the reference ground 12, the feed line 13 is allowed to be set to extend in a bent form in a direction toward the reference ground 12 to be lengthened, so as to further tune the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12, and based on the loss caused by the coupling between the feed line 13 and the reference ground 12 while accompanying the fine tuning of the radiation efficiency of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12, the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 also has good directional radiation characteristics And has higher radiation gain in the directional radiation direction, and simultaneously allows the matching of the resonant frequency point and the working frequency point of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 to be formed based on the setting of different lengths and forms of the feeder line 13.

Referring to fig. 11A to 11E of the drawings of the specification of the present invention, a tuning example is performed in an ISM operating band of 5.8GHz, and a further preferred tuning structure of the antenna formed based on the half-wave oscillator radiation source 11 and the reference ground 12 illustrated in fig. 8A is illustrated by further tuning the stub load 15 and the feeder line 13, wherein in this preferred tuning structure of the present invention, one end of the stub load 15 is electrically connected to the half-wave oscillator radiation source 11 at a position of the half-wave oscillator radiation source 11 biased toward the feeding end 111, and the feeder line 13 is designed to be thick with respect to the half-wave oscillator radiation source 11 in a state where the feeder line 13 is also provided in a columnar bar form with the half-wave oscillator radiation source 11.

Specifically, based on the foregoing (corresponding to fig. 6A to 10C) structure of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12, the structure design in which the half-wave oscillator radiation source 11 is disposed on the same plane, and the structure design in which the plane defined by the half-wave oscillator radiation source 11 is perpendicular to the reference ground 12 in a state in which the distance between the feeding end 111 of the half-wave oscillator radiation source 11 and the reference ground 12 is smaller than the distance between the other end of the half-wave oscillator radiation source 11 and the reference ground 12. In this preferred tuning structure of the present invention, the half-wave oscillator radiation source 11 is folded back to extend from an end opposite to the feeding end 111 in a direction parallel to the reference ground 12, and toward the reference ground and in a direction opposite to the direction parallel to the reference ground 12, and has two coupling sections 112 extending in the same direction from both ends thereof corresponding to the half-wave oscillator radiation source 11 and a connection section 113 connected between the two coupling sections 112 in a direction perpendicular to the reference ground 12, wherein the feeding line 13 has a size thickened with respect to the half-wave oscillator radiation source 11 in the extending direction of the two coupling sections 112.

Further, the stub load 15 is provided to extend from the connecting section 113 in a direction toward the reference ground 12, and has a physical length of approximately 2.6mm within an error range of 20%, wherein the coupling section 112 having the feeding end 111 has a physical length of approximately 11.55mm within an error range of 20%, and the other coupling section 112 has a physical length of approximately 14.50mm within an error range of 20%, wherein the distance between the coupling section 112 having the feeding end 111 and the reference ground 12 is approximately 3.00mm within an error range of 20%, that is, the distance between the feeding end 111 and the reference ground 12 is approximately 3.00mm within an error range of 20%, and wherein the distance between the two coupling sections 112 is approximately 1.2mm within an error range of 20%.

Referring to fig. 11C to 11E, the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 based on the above-mentioned structural design has a good directional radiation characteristic due to a significantly weakened backward radiation from the reference ground 12, and has a radiation gain of up to 7.5dB in the directional radiation direction, while the beam angle of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 is large (greater than 80 degrees corresponding to fig. 11D), the detection area covered by the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 is large corresponding to a vertical detection application, and the radiation sector angle of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 is also large corresponding to a large detection area in a horizontal detection application, matching with the high gain characteristic of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12, the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 has a longer detection distance and a larger sector angle, so that microwave detection in a large area and a large area can be realized, in addition, the S11 curve of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 presents an obvious resonance frequency point near 5.8GHz and can be matched with the ISM working frequency band of 5.8GHz, meanwhile, the S11 curve of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 has the loss at the resonance frequency point as low as-20 dB and has a narrow frequency bandwidth, the antenna formed by the corresponding half-wave oscillator radiation source 11 and the reference ground 12 has excellent anti-interference performance, so that the detection precision and stability of the space staggered type integrated receiving and transmitting separation microwave detection antenna used for receiving and transmitting separation Doppler microwave detection can be guaranteed. .

It is worth mentioning that, in these structures of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 of the present invention, in view of the influence of the stub load 15 on the electrical length of the half-wave oscillator radiation source 11, conversion of the physical length of the half-wave oscillator radiation source 11 based on the electrical length of the half-wave oscillator radiation source 11 to the physical length of the half-wave oscillator radiation source 11 is allowed to have an error of 20%, and the half-wave oscillator radiation source 11 has a physical length of 0.4 λ or more and 0.9 λ or less corresponding to a state where the half-wave oscillator radiation source 11 is in a dielectric space of air.

It can be understood that, in these structures of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 of the present invention, since the resonant frequency point of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 is determined by the electrical lengths of the wavelengths of the half-wave oscillator radiation source 11, the stub load 15 and the feeder 13 under the limitation of the fixed connection relationship between the half-wave oscillator radiation source 11, the stub load 15 and the feeder 13, in a state where the electrical lengths of the wavelengths of the half-wave oscillator radiation source 11, the stub load 15 and the feeder 13 and the connection relationship therebetween are maintained unchanged, it is difficult to influence the operating parameters of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 based on mass production errors and slight deformation of the half-wave oscillator radiation source 11 formed by daily use, correspondingly, the space staggered integrated receiving and transmitting separated microwave detection antenna has good consistency and stability.

Further, based on the structural principle of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 illustrated in fig. 5A and 5B, the structural state of the half-wave oscillator radiation source 11 is that "the half-wave oscillator radiation source 11 has an electrical length equal to or greater than 1/2 and equal to or less than 3/4 wavelength" and "both ends of the half-wave oscillator radiation source 11 are close to each other within a distance range equal to or greater than λ/128 and equal to or less than λ/6" and "the half-wave oscillator radiation source 11 is close to the reference ground 12 with both ends thereof within a distance range equal to or greater than λ/128, and at least one end thereof is disposed at a distance from the reference ground 12 in a state of being close to the reference ground 12 within a distance range equal to or less than λ/6", the structural form of the half-wave oscillator radiation source 11 does not constitute a limitation to the present invention, for example, in another tuning structure of the present invention, corresponding to fig. 12, in contrast to the aforementioned structure design in which the half-wave oscillator radiation source 11 has two coupling sections 112 extending in the same direction from both ends thereof and the connecting section 113 connected between the two coupling sections 112 in the direction perpendicular to the reference ground 12, in this tuning structure of the present invention, the connecting section 113 connected between the two coupling sections 112 has a structure design sequentially extending in the same direction toward the reference ground 12 and extending toward each other from both ends thereof to be integrally connected.

In particular, in order to reduce the probability of deformation of the half-wave dipole radiation source 11 in the single-point feeding configuration during the production, assembly and use processes, and further optimize the structural stability of the spatially staggered integrated transceiving split microwave detection antenna, specifically, taking the above preferred tuning structure of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 as an example, the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 is further provided with a limit support base 16, and the corresponding optimized structure is illustrated in fig. 13A and 13B, wherein the limit support base 16 is designed to support and/or fix the half-wave dipole radiation source 11, so as to design based on the corresponding configuration of the limit support base 16, in the state that the half-wave dipole radiation source 11 is supported and/or fixed by the limit support base 16, the loss of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 due to the contact between the limit support base 16 and the half-wave oscillator radiation source 11 and the influence of the limit support base 16 on the medium between the half-wave oscillator radiation source 11 and the reference ground 12 can be reduced, so that the structural stability of the space staggered integrated transceiving separated microwave detection antenna is ensured, and the performance stability of the space staggered integrated transceiving separated microwave detection antenna is also ensured.

Specifically, the position-limiting support base 16 includes a base 163, and a clamping position-limiting portion 161 and a half-wave oscillator radiation source support column 162 which extend from the base 163 in the same direction, wherein the clamping position-limiting portion 161 is configured and adapted to form a support and a position limitation for the half-wave oscillator radiation source 11 in a manner of clamping the feed line 13, wherein in a state where the feed line 13 is clamped by the clamping position-limiting portion 161, an end portion of the half-wave oscillator radiation source support column 162 is opposite to the half-wave oscillator radiation source 11 to form a support for the half-wave oscillator radiation source 11 in an extending direction of the half-wave oscillator radiation source support column 162, and further in a state where the base 163 is fixed, form a support and a fixation for the half-wave oscillator radiation source 11.

It is worth mentioning that in a state where the feeder line 13 is clamped by the clamping and limiting portion 161, the half-wave oscillator radiation source 11 integrally extends from the feeder line 13 and can be fixed by the fixing of the base 163, so as to avoid the direct contact between the clamping and limiting portion 161 and the half-wave oscillator radiation source 11 and the influence on the medium between the half-wave oscillator radiation source 11 and the reference ground 12, and correspondingly reduce the loss generated by the contact between the limiting and supporting seat 16 and the half-wave oscillator radiation source 11 and the influence of the limiting and supporting seat 16 on the medium between the half-wave oscillator radiation source 11 and the reference ground 12.

Preferably, in a state where the feeder line 13 is clamped by the clamping limiting portion 161, an end of the half-wave oscillator radiation source supporting column 162 is opposite to the half-wave oscillator radiation source 11 within a distance range of λ/16 to λ/4 from the feeding end 111, so as to reduce a loss caused by direct contact between the half-wave oscillator radiation source supporting column 162 and the half-wave oscillator radiation source 11, and correspondingly further reduce a loss caused by contact between the limiting supporting seat 16 and the half-wave oscillator radiation source 11.

Referring further to fig. 14A and 14B of the drawings of the present specification, two other tuning structures of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 illustrated in fig. 8A are illustrated, and specifically, in the two tuning structures of the present invention, the spatially staggered integrated transceiving split microwave detecting antenna further extends a microstrip transmission line 17 from the feeding line 13, wherein the microstrip transmission line 17 is spaced from the reference ground 12 within a distance range of λ/16 or less, so as to satisfy corresponding impedance matching based on the length setting of the microstrip transmission line 17, and when the excitation signal is sequentially input through the microstrip transmission line 17 and the feeding line 13 and the half-wave oscillator radiation source 11 is fed by the feeding point 110 of the half-wave oscillator radiation source 11, the microstrip transmission line 17 is fed to the reference ground 12 within a distance range of λ/16 or less based on the microstrip transmission line 17 The spaced structural state reduces the loss of the microstrip transmission line 17 and ensures the gain of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 in the single-point feeding mode.

It should be noted that, in a state that the microstrip transmission line 17 is spaced from the reference ground 12 within a distance range of λ/16 or less, the extending direction and the structural form of the microstrip transmission line 17 may be various, and corresponding to the two tuning structures illustrated in fig. 14A and 14B, the microstrip transmission line 17 has a reverse extending direction, whereas in other tuning structures of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 of the present invention, the microstrip transmission line 17 is bent and extended to adapt to the size and the line arrangement of the corresponding circuit main board.

For example, referring to fig. 15A to 20C of the drawings of the present specification, based on the structural principle of the antenna formed by the half-wave element radiation source 11 and the reference ground 12 in the two-point feeding mode illustrated in fig. 5C, one of the radiation sources 11 of the spatially staggered integrated transmitting and receiving and separating microwave detecting antenna is set to the structural state of the half-wave element radiation source 11 in the two-point feeding mode, and the different structural states of the antenna formed by the radiation source 11 and the reference ground 12, the radiation patterns corresponding to the structural states, and the S11 curves of the spatially staggered integrated transmitting and receiving and separating microwave detecting antenna are illustrated. In the structural examples of the present invention, the spatially staggered integrated transceiving split microwave detecting antenna has a feeding line 13 respectively extending from two feeding points 110 of the half-wave oscillator radiation source 11 in a two-point feeding mode, that is, the two feeding lines 13 respectively extend from the two feeding points 110 of the half-wave oscillator radiation source 11 to the half-wave oscillator radiation source 11, so that in a state where the half-wave oscillator radiation source 11 is spaced from the reference ground 12, two poles of the excitation signal are connected through the two feeding lines 13 or an opposite-phase excitation signal is connected to the two feeding points 110 of the half-wave oscillator radiation source 11 to feed the half-wave oscillator radiation source 11.

In particular, in these structural examples of the present invention, two of the feeding lines 13 extend sequentially from two of the feeding points 110 of the half-wave dipole radiation source 11 in directions toward and towards the reference ground 12, so that the two feeding lines 13 have two feeding sections 131 close to each other within a distance range smaller than the distance between the two feeding points 110 of the half-wave dipole radiation source 11, thereby being beneficial to reducing loss caused by mutual coupling between the two feeding lines 13 and correspondingly ensuring gain and resonance stability of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12.

Further, two ends of the two feeder lines 13, which are connected to the excitation signal, are bent and extended to the corresponding feed sections 131 in a direction away from each other, so as to form a state that a distance between the two ends of the two feeder lines 13, which are connected to the excitation signal, is greater than a distance between the two feed sections 131, so that when the two ends of the two feeder lines 13, which are connected to the excitation signal, are fixed and electrically connected in a welding manner, electrical contact between the two feeder lines 13 can be avoided, the yield of the spatially staggered integrated transceiving and separating microwave detection antenna can be guaranteed, and the stability of the half-wave oscillator radiation source 11 supported by the feeder lines 13 can be enhanced.

Corresponding to fig. 15A to 15C, based on the structural principle of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 in the double-point feeding mode illustrated in fig. 5C, a tuning example is performed with the ISM frequency band of 5.8GHz as an operating frequency, a basic structure of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12, a radiation pattern corresponding to the structure, and an S11 curve are respectively illustrated, wherein the gain of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 in the directional radiation direction is as high as 6.2dB and exhibits obvious resonance characteristics, and the loss at the resonance frequency point is as low as-25 dB, and the corresponding resonance frequency point appears near 5.75GHz and can be matched with the ISM frequency band of 5.8 GHz.

It is worth mentioning that, on the basis of the structure of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 illustrated in fig. 15A, the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 exhibits obvious resonance characteristics to allow further tuning based on the corresponding tuning structure, wherein the tuning means of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 are various and can be combined with each other, and the corresponding tuning means includes, but is not limited to, tuning the electrical length of the half-wave oscillator radiation source 11, tuning the electrical length of the feeder 13, and tuning the number, form, electrical length, and load position of the stub load based on the setting of the corresponding stub load, so that, on the basis of the structure of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 illustrated in fig. 15A, the half-wave oscillator radiation source 11 which can present obvious resonance characteristics has various forms and can adapt to different form requirements, and the matching between the resonance frequency point and the working frequency point of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 is allowed to be formed based on corresponding tuning means, including but not limited to the working frequency points of ISM frequency bands of 5.8GHz, 10.525GHz, 24.15GHz, 60-62GHz and 77-79 GHz.

For example, referring to fig. 16A to 16C of the drawings of the specification of the present invention, a tuning example is also performed in an ISM operating frequency band of 5.8GHz, and a further tuning structure of a basic structure of an antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 based on the two-point feeding mode illustrated in fig. 15A is illustrated in a manner that the branch load 15 is loaded on the half-wave oscillator radiation source 11 in the two-point feeding mode, specifically, in this tuning structure of the present invention, the branch load 15 is loaded on the connection section 113 of the half-wave oscillator radiation source 11, and a thickening design of a physical form of the half-wave oscillator radiation source 11 is formed on the connection section 113 of the half-wave oscillator radiation source 11.

Referring to fig. 16B and 16C, on the basis of the structure of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 in the double-point feeding mode illustrated in fig. 15A, a tuning structure design in which the branch load 15 is loaded on the half-wave oscillator radiation source 11 can form an adjustment of the resonant frequency point of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12. Specifically, in this tuning structure of the present invention, the corresponding resonant frequency point occurs near 5.85GHz and the ISM band of 5.8GHz can be better matched with respect to the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 illustrated in fig. 15A, while the gain of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 in the directional radiation direction is as high as 6.38dB and is slightly improved with respect to the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 illustrated in fig. 15A.

It can be understood that, based on the arrangement of the stub load 15, the resonant frequency point of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 can be adjusted, wherein the number, the form, the electrical length, and the load position of the stub load 15 are various, and accordingly, the half-wave oscillator radiation source 11 is various in form and can adapt to different form requirements, which is not limited by the present invention.

It is worth mentioning that under the action of the high-frequency excitation signal, the two feeding sections 131 close to each other within a distance range smaller than the distance between the two feeding points 110 of the half-wave oscillator radiation source 11 in the two-point feeding mode can equivalently form an electrical connection to the two feeding points 110, and then the connection section 113 defined between the two feeding points 110 of the half-wave oscillator radiation source 11 is allowed to be cut off or disconnected, and can also be in a state where the two feeding lines 13 are electrically coupled with the corresponding excitation sources and are connected to two poles of the excitation signal or connected to the opposite-phase excitation signal, so that a phase difference is formed between the two ends of the half-wave oscillator radiation source 11 and are coupled to each other, and the antenna formed by the corresponding half-wave oscillator radiation source 11 and the reference ground 12 has various forms and can be adapted to different application requirements.

Specifically, in these embodiments of the present invention, corresponding to fig. 17A to 20C, on the basis of the structure of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 in the two-point feeding configuration illustrated in fig. 15A, the connection section 113 of the half-wave oscillator radiation source 11 defined between the two feeding points 110 is cut off.

It should be noted that, in the embodiments of the present invention, in a state where the connection section 113 defined between the two feeding points 110 of the half-wave oscillator radiation source 11 in the double-point feeding configuration is cut off, the power feeding line 13 and the half-wave oscillator radiation source 11 are integrally designed, that is, the power feeding line 13 integrally extends in the coupling section 112 at the feeding end 111 of the coupling section 112, based on the above-mentioned "the half-wave oscillator radiation source 11 has a wavelength electrical length of 1/2 or more and 3/4 or less", "each of the coupling sections 112 has a wavelength electrical length of 1/6 or more", and "the distance between the two feeding ends 111 is λ/4 or less", and "the distance between the two ends of the half-wave oscillator radiation source 11 is λ/128 or more and λ/4 or less", and "the distance between both ends of the half-wave oscillator radiation source 11 and the reference ground 12 is λ/128 or more and λ/6 or less", in a state where the feeder line 13 is electrically connected to the feeding terminal 111 of the coupling section 112, the definition of the feeding terminal 111 of the coupling section 112 may not be unique, that is, there may be a plurality of positions of the feeding terminal 111 satisfying the above description. Therefore, it is worth mentioning that in a state that the feeder line 13 is electrically connected to the feeding end 111 of the coupling section 112, the two coupling sections 112 respectively use two ends of the half-wave oscillator radiation source 11 as a definite end, and when there is a position satisfying the above description of the feeding end 111, the two ends of the half-wave oscillator radiation source 11 can be coupled to each other and have relatively high coupling energy, so that an obvious resonant frequency point can be generated based on the coupling between the two ends of the half-wave oscillator radiation source 11 while forming directional radiation.

Illustratively, corresponding to fig. 17A to 18C, based on the structure of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 illustrated in fig. 15A, based on the connection segment 113 defined between the two feeding points 110 of the half-wave oscillator radiation source 11 being cut off and the structural state of the half-wave oscillator radiation source 11 loaded with the stub load 15, the feeding simulation of the half-wave oscillator radiation source 11 is performed in a feeding manner in which the two feeding lines 13 are respectively connected to the excitation signals having the phase difference, and the structure and the radiation pattern of the antenna formed by the corresponding half-wave oscillator radiation source 11 and the reference ground 12 and the S11 curve are illustrated respectively.

Specifically, in the two structural examples of the present invention, the number and the loading position of the stub loads 15 are changed with respect to the tuning structure of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 illustrated in fig. 16A, specifically, in the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 illustrated in fig. 17A, the stub loads 15 are loaded on the coupling section 112 of the half-wave dipole radiation source 11, and a thickened design of the physical form of the half-wave dipole radiation source 11 is formed on the coupling section 112 of the half-wave dipole radiation source 11, including but not limited to a thickened design of the physical form of both ends of the half-wave dipole radiation source 11 by loading the stub loads 15 on an end of the coupling section 112 opposite to the feeding end 111.

Referring to fig. 17B and 17C and fig. 18B and 18C, in a state where the connection segment 113 defined between the two feeding points 110 of the half-wave dipole radiation source 11 is cut off, the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 can still exhibit a distinct resonant frequency point, and have a lower loss and a narrower frequency bandwidth at the corresponding resonant frequency point relative to a structural state where the connection segment 113 is not cut off as illustrated in fig. 15A and 16A, thereby having a better anti-interference performance, and based on a comparison between fig. 17C and 18C, in a state where the connection segment 113 defined between the two feeding points 110 of the half-wave dipole radiation source 11 is cut off, the number, shape, electrical length and load position of the branch loads 15 can also be adjusted by adjusting the branch loads 15, including but not limited to the number, shape, electrical length and load position, and tuning an antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12.

With further reference to fig. 19A to 19C of the drawings of the present specification, on the basis of the structure of the antenna formed by the half-wave dipole radiation source 11 of the double-point feeding configuration and the reference ground 12 illustrated in fig. 15A, based on the structural state of the half-wave dipole radiation source 11 in which the connection section 113 defined between the two feeding points 110 is cut off, the feeding simulation of the half-wave dipole radiation source 11 is performed in a two-pole feeding manner in which the two feeding lines 13 are respectively connected to the excitation signal, and the structure and the radiation pattern of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 and the S11 curve are respectively illustrated, wherein the backward radiation of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 and bounded by the reference ground 12 is attenuated to have good directional radiation characteristics and has a radiation gain of up to 6dB in the directional radiation direction, meanwhile, an S11 curve of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 presents an obvious resonance characteristic and has a narrow frequency bandwidth at a corresponding resonance frequency point, so that the antenna is suitable for microwave detection and has good anti-interference performance and high sensitivity and reliability.

Corresponding to fig. 20A to 20C, the tuning example is performed at the ISM operating band of 5.8GHz, on the basis of the antenna structure formed by the half-wave dipole radiation source 11 and the reference ground 12 illustrated in figure 19A, by further tuning of the feed line 13, a preferred tuning structure of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 is illustrated, wherein, in this preferred tuning structure of the invention, the two ends of the two feeder lines 13, which are connected to the excitation signal, extending in a direction away from each other while being bent in a direction corresponding to the feeding section 131, and particularly extending from the feeding section 131 first in a direction opposite to and toward the reference ground 12 and then toward the reference ground 12, and in a state where the feeding line 13 is designed in a columnar bar form, the section extending rearwards towards the reference ground 12 is of thickened design with respect to the feed section 131. It is shown in fig. 20C that the resonant frequency point of the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 is fine-tuned relative to the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 illustrated in fig. 19A, and the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 illustrated in fig. 19A has greatly reduced loss and further narrowed bandwidth at the corresponding resonant frequency point, so that the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 is suitable for microwave detection and has excellent anti-interference performance and good sensitivity and reliability.

Corresponding to fig. 20D, based on the modified design of the feeding structure of the antenna structure formed by the half-wave dipole radiation source 11 and the reference ground 12 illustrated in fig. 20A, another preferred tuning structure of the antenna formed by the half-wave dipole radiation source 11 and the reference ground 12 is illustrated, and likewise, in this preferred tuning structure of the present invention, two ends of the two feeding lines 13, which are connected to the excitation signal, are bent and extended in directions away from each other to the corresponding feeding sections 131, specifically, are first reversed from the feeding sections 131 and extended toward the reference ground 12, and then extended toward the reference ground 12. In particular, unlike the feeding structure design with pins in which the two ends of the two feeder lines 13 connected to the excitation signal are fixed in the pin shape, which is illustrated in fig. 20A, in this preferred tuning structure of the present invention, the two ends of the two feeder lines 13 connected to the excitation signal are fixed in the mounting shape and have the mounting feeding structure design. That is, based on the structural description of the aforementioned "the half-wave oscillator radiation source 11 has a wavelength electrical length equal to or greater than 1/2 and equal to or less than 3/4", "each of the coupling sections 112 has a wavelength electrical length equal to or greater than 1/6", and "the distance between the two feeding ends 111 is equal to or less than λ/4", and "the distance between the two ends of the half-wave oscillator radiation source 11 is equal to or greater than λ/128 and equal to or less than λ/4", and "the distance between the two ends of the half-wave oscillator radiation source 11 and the reference ground 12 is equal to or greater than λ/128 and equal to or less than λ/6", the feeding structure design of the two ends of the corresponding feeding lines 13 accessing the excitation signal does not constitute a limitation of the present invention.

Based on the above description, it can be known that the antennas formed by the half-wave oscillator radiation source 11 and the reference ground 12 in the single-point feeding mode and the double-point feeding mode can both retain the advantages of the microwave detection antenna of the columnar radiation source structure in the structural mode, and when one of the radiation sources of the spatially staggered integrated transceiving split microwave detection antenna is set as the half-wave oscillator radiation source 11, the radiation source has the columnar structural mode and is suitable for being staggered with the flat radiation source or the half-wave oscillator radiation source 11 in the vertical projection space of the reference ground 12 on the same side of the reference ground 12 as the reference ground 12 at intervals, and meanwhile, the antenna formed by the half-wave oscillator radiation source 11 and the reference ground 12 can form directional radiation and generate significant resonant frequency points, and avoid forming a detection dead zone in the directional radiation direction, and thus is suitable for both transmit and receive separated doppler microwave detection.

It should be noted that, when one of the radiation sources 11 of the spatially staggered integral transmission/reception separation microwave detecting antenna is set as the half-wave oscillator radiation source 11, the radiation source has a columnar structure and is suitable for being staggered in the vertical projection space of the reference ground 12 at a distance from the reference ground 12 on the same side of the reference ground 12 as the flat radiation source or the half-wave oscillator radiation source 11, wherein in the state that both the radiation sources of the spatially staggered integral transmission/reception separation microwave detecting antenna are set as the half-wave oscillator radiation sources 11, the types of the two half-wave oscillator radiation sources 11 are not limited to be the same, for example, the two half-wave oscillator radiation sources 11 can be set as the single-point feeding configuration half-wave oscillator radiation sources 11 at the same time, or the half-wave oscillator radiation sources 11 in the single-point feeding configuration and the half-wave oscillator radiation sources 11 in the double-point feeding configuration, respectively, the present invention is not limited to this, and the structure of the half-wave oscillator radiation sources 11 in the two single-point feeding modes and the corresponding feeding structure are not limited to be the same in a state where both the half-wave oscillator radiation sources 11 in the two single-point feeding modes are set, and the present invention is not limited to this.

Specifically, referring to fig. 21A to 24D of the drawings of the specification of the present invention, based on the selection of the radiation sources of different configurations, the structural configuration of the spatially-interleaved integrative transceiver-splitter microwave detecting antenna and the radiation pattern corresponding to the structural configuration and the S11 curve and S22 curve are respectively illustrated, in which in the embodiments of the present invention, the spatially-interleaved integrative transceiver-splitter microwave detecting antenna includes one reference ground 12 and two radiation sources 11, wherein the two radiation sources 11 are alternately arranged in the vertical projection space of the reference ground 12 on the same side of the reference ground 12 and spaced from the reference ground 12, wherein the vertical projection space of the reference ground 12 is the projection space of the reference ground 12 in the direction perpendicular to the reference ground 12, in order to form a structural configuration that the two radiation sources 11 integrally share the reference ground 12, corresponding to a state where one of the radiation sources 11 is fed by transmission and the other radiation source 11 is fed by reception, the antenna formed by one of the radiation sources 11 and the reference ground 12 independently transmits a microwave beam, and the antenna formed by the other radiation source 11 and the reference ground 12 independently receives a corresponding reflected echo, so as to form a transceiving split type microwave detecting antenna in a structural configuration that the two spatially staggered radiation sources 11 integrally share the reference ground 12, so as to ensure the detection accuracy and stability of the spatially staggered type integrated transceiving split microwave detecting antenna based on a transceiving split manner, and simultaneously ensure the small volume advantage of the spatially staggered type integrated transceiving split microwave detecting antenna based on the structural configuration that the two radiation sources 11 integrally share the reference ground 12, the advantages of the existing transmitting-receiving integrated microwave detection antenna and the transmitting-receiving separated microwave detection antenna are combined.

Further, one of the radiation sources 11 of the spatially staggered all-in-one transceiving split microwave detecting antenna is set as a half-wave dipole radiation source 11 in a single-point feeding mode, the other radiation source is set as one of a flat radiation source 11B, a half-wave dipole radiation source 11 in a single-point feeding mode and a half-wave dipole radiation source 11 in a double-point feeding mode, wherein in the description of the present invention, in order to better distinguish components having the same name in an antenna formed by the different radiation sources 11 and the reference ground 12, such as the feeding point 110, the feeding end 111, the coupling section 112, the connection section 113, the feeding line 13, and the like, it is allowed to distinguish the components having the same name by "first", "second", and "third" before the component having the same name according to the names of the radiation sources 11 based on the foregoing description, wherein "first" and "third" are used, "second" and "third" do not constitute a description or limitation of quantity.

Specifically, based on the foregoing description, the half-wave oscillator radiation source 11 in the single-point feeding mode is disposed in a columnar strip mode, has an electrical length equal to or greater than 1/2 and equal to or less than 3/4, has two ends that are close to each other within a distance range equal to or greater than λ/128 and equal to or less than λ/6, and is spaced from the reference ground by a distance between the two ends and the reference ground 12 equal to or greater than λ/128 and a distance between at least one end and the reference ground 12 equal to or less than λ/6, wherein the half-wave oscillator radiation source 11 in the single-point feeding mode has a first feeding point 110, the first feeding point 110 is biased toward one end of the half-wave oscillator radiation source 11 in the single-point feeding mode, which is named as a first feeding end 111, and the distance between the first feeding end 111 and the reference ground 12 is equal to or less than half-wave oscillator radiation source in the single-point feeding mode A distance between the other end of the oscillator radiation source 11 and the reference ground 12 is such that, in a state where the half-wave oscillator radiation source 11 in the single-point feeding mode is fed after being connected to the corresponding excitation signal at the first feeding point 110, the two ends of the half-wave oscillator radiation source 11 in the single-point feeding mode can form a phase difference to be coupled with each other, and the half-wave oscillator radiation source 11 corresponding to the single-point feeding mode has a polarization direction from the first feeding point 110 along a direction in which the half-wave oscillator radiation source 11 in the single-point feeding mode is far from the first feeding end 111; wherein the half-wave oscillator radiation source 11 of the double-point feeding configuration is disposed in a columnar strip configuration, has an electrical length equal to or greater than 1/2 and equal to or less than 3/4 wavelengths, has two ends that are close to each other within a distance range equal to or greater than λ/128 and equal to or less than λ/4, and is spaced from the reference ground 12 in a state where a distance between the two ends and the reference ground 12 is equal to or greater than λ/128 and equal to or less than λ/6, wherein the half-wave oscillator radiation source 11 of the double-point feeding configuration has two second coupling sections 112 extending with the two ends as ends, wherein each of the second coupling sections 112 has an electrical length equal to or greater than 1/6 wavelengths, the other end of each of the second coupling sections 112 is correspondingly named as a second feeding end 111, and wherein a distance between the two second feeding ends 111 is equal to or less than λ/4, the distance between each second feeding end 111 and the reference ground 12 is greater than the distance between both ends of the double-point feeding type half-wave oscillator radiation source 11 and the reference ground 12, so that in a state where the double-point feeding type half-wave oscillator radiation source 11 is connected to two poles of an excitation signal or connected to an excitation signal having a phase difference at the two second feeding ends 111, both ends of the double-point feeding type half-wave oscillator radiation source 11 can form a phase difference to be coupled with each other, and the two corresponding double-point feeding type half-wave oscillator radiation source 11 takes the connection line direction of both ends thereof as a polarization direction; the flat panel radiation source 11B is a metal plate layer designed in a flat panel form and has a third feeding point 110B deviated from a physical center point thereof, and a connection line direction from the third feeding point 110B to the physical center point of the flat panel radiation source 11B is a polarization direction corresponding to the flat panel radiation source 11B.

The column shape of the half-wave oscillator radiation source 11 structurally based on the single-point feeding shape is designed such that the two radiation sources 11 are suitable for being alternately arranged in the vertical projection space of the reference ground 12 at intervals from the reference ground 12 on the same side of the reference ground 12, wherein the structure shape of the two radiation sources 11 alternately arranged in the vertical projection space of the reference ground 12 corresponds to the vertical projection of the corresponding flat radiation source 11B on the reference ground 12, the vertical projection of the half-wave oscillator radiation source 11 in the single-point feeding shape on the reference ground 12, and the intersection relationship between the vertical projections of the connecting line segments at the two ends of the half-wave oscillator radiation source 11 in the double-point feeding shape on the reference ground 12, so that the two radiation sources 11 integrally share the structure shape of the reference ground 12 based on the spatial alternation, on the basis of not increasing the area of the reference ground 12, the small volume advantage of the space staggered type integrated receiving and transmitting separated microwave detection antenna is guaranteed; and on the performance, based on the half-wave oscillator radiation source 11 in the single-point feed form or the half-wave oscillator radiation source 11 in the double-point feed form and the antenna formed by the reference ground 12, directional radiation can be formed, obvious resonance frequency points can be generated, and the detection dead zone is prevented from being formed in the directional radiation direction, so that the two radiation sources 11 are staggered in space and are integrally shared, the space staggered type integrated receiving and transmitting separation microwave detection antenna is suitable for receiving and transmitting separation Doppler microwave detection.

Further, the two radiation sources 11 of the spatially staggered integrated transmitting/receiving microwave detecting antenna are arranged in a staggered manner in the vertical projection space of the reference ground 12 on the same side of the reference ground 12 with the reference ground 12 spaced apart from each other in a state that the polarization directions of the two radiation sources 11 are spatially staggered, and preferably in a state where the polarization directions of the two radiation sources 11 are spatially orthogonal, are staggered in the vertical projection space of the reference ground 12 on the same side of the reference ground 12 as the reference ground 12, so as to ensure the isolation between the two spatially staggered radiation sources 11 and the antenna formed by the reference ground 12, and the detection precision and stability of the space staggered integrated receiving and transmitting separation microwave detection antenna when used for receiving and transmitting separated Doppler microwave detection are further ensured.

In this embodiment of the present invention, one of the radiation sources 11 of the spatially interleaved integrally transceiving-separated microwave detecting antenna is configured as a half-wave dipole radiation source 11 in a single-point feeding configuration, the other radiation source is configured as a flat radiation source 11B, the spatially interleaved integrally transceiving-separated microwave detecting antenna can form directional radiation corresponding to fig. 21B when the antenna formed by one of the radiation sources 11 and the reference ground 12 independently emits a microwave beam, and the antenna formed by the other radiation source 11 and the reference ground 12 independently receives a corresponding reflected echo, and the spatially interleaved integrally transceiving-separated microwave detecting antenna exhibits significant resonant frequency points in both the S11 curve and the S22 curve and has good isolation corresponding to fig. 21C and 21D.

Further, in this embodiment of the present invention, the flat panel radiation source 11B is disposed in a hexagonal shape, wherein it is understood that the shape of the flat panel radiation source 11B does not constitute a limitation of the present invention, and in other embodiments of the present invention, the shape of the flat panel radiation source 11B may be disposed in a regular shape such as a circle, a rectangle, a trapezoid, a diamond, a shape design having opposite sides concave on the basis of the rectangular shape, or other irregular shapes.

In particular, in this embodiment of the present invention, the flat panel radiation source 11B is grounded, and particularly, the connection structure of the metalized via is electrically connected to the reference ground 12 at the physical center point of the flat panel radiation source 11B to be grounded, so as to improve the quality factor (i.e., Q value) of the antenna formed by the flat panel radiation source 11B and the reference ground 12 and improve the anti-interference performance of the antenna by reducing the impedance of the antenna.

In this embodiment of the present invention, corresponding to fig. 22A to 22D, both of the radiation sources 11 of the spatially interleaved integrally transceiving-separated microwave detecting antenna are configured as half-wave dipole radiation sources 11 in a single-point feeding configuration, and the spatially interleaved integrally transceiving-separated microwave detecting antenna can form directional radiation corresponding to fig. 22B when the antenna formed by one of the radiation sources 11 and the reference ground 12 independently transmits a microwave beam and the antenna formed by the other radiation source 11 and the reference ground 12 independently receives a corresponding reflected echo, and has good isolation due to the fact that the spatially interleaved integrally transceiving-separated microwave detecting antenna exhibits significant resonant frequency points in the S11 curve and the S22 curve corresponding to fig. 22C and 22D.

Specifically, in this embodiment of the present invention, the two radiation sources 11 of the half-wave dipole radiation source 11 configured as the single-point feeding configuration are staggered on the same side of the reference ground 12 in a state where one coupling section 112 of one radiation source 11 passes through the gap between the two coupling sections 112 of the other radiation source 11, so as to form a state where the polarization directions of the two radiation sources 11 are spatially staggered.

In this embodiment of the present invention, corresponding to fig. 23A to 23D, one of the radiation sources 11 of the spatially interleaved integrally transceiving and splitting microwave detecting antenna is configured as a half-wave dipole radiation source 11 in a two-point feeding configuration, and the other radiation source is configured as a half-wave dipole radiation source 11 in a single-point feeding configuration, and when the antenna formed by one of the radiation sources 11 and the reference ground 12 independently emits a microwave beam and the antenna formed by the other radiation source 11 and the reference ground 12 independently receives a corresponding reflected echo, the spatially interleaved integrally transceiving and splitting microwave detecting antenna can form directional radiation corresponding to fig. 23B, and has good isolation by exhibiting distinct resonant frequency points in both the S11 curve and the S22 curve corresponding to fig. 23C and 23D.

Specifically, in this embodiment of the present invention, the half-wave oscillator radiation source 11 in the single-point feeding configuration is disposed in a staggered manner with the half-wave oscillator radiation source 11 in the double-point feeding configuration on the same side of the reference ground 12 in a state of passing through a gap between the two power feeding lines 13 of the half-wave oscillator radiation source 11 in the double-point feeding configuration.

In this embodiment of the present invention, corresponding to fig. 24A to 24D, one of the radiation sources 11 of the spatially interleaved integrally transceiving-separated microwave detecting antenna is configured as a half-wave dipole radiation source 11 in a two-point feeding configuration, and the other radiation source is configured as a half-wave dipole radiation source 11 in a single-point feeding configuration, and when the antenna formed by one of the radiation sources 11 and the reference ground 12 independently emits a microwave beam and the antenna formed by the other radiation source 11 and the reference ground 12 independently receives a corresponding reflected echo, the spatially interleaved integrally transceiving-separated microwave detecting antenna can form directional radiation corresponding to fig. 24B, and has good isolation by exhibiting distinct resonant frequency points in both the S11 curve and the S22 curve corresponding to fig. 24C and 24D.

Specifically, in this embodiment of the present invention, the half-wave oscillator radiation source 11 in the single-point feeding mode and the half-wave oscillator radiation source 11 in the double-point feeding mode are arranged in a staggered manner on the same side of the reference ground 12 as the half-wave oscillator radiation source 11 in the double-point feeding mode in a state of passing through a gap between the two feeder lines 13 of the half-wave oscillator radiation source 11 in the double-point feeding mode, wherein a distance between two ends of the half-wave oscillator radiation source 11 in the double-point feeding mode is greater than or equal to λ/128 and less than or equal to λ/6.

It should be noted that, in the embodiments of the present invention, one of the radiation sources of the spatially staggered integral transceiving and splitting microwave detecting antenna is set as the half-wave oscillator radiation source in the single-point feeding mode, and the other radiation source is set as one of a flat radiation source, the half-wave oscillator radiation source in the single-point feeding mode, and the half-wave oscillator radiation source in the double-point feeding mode, the structural form that the two radiation sources of the spatial staggered integrated transceiving and separating microwave detection antenna are staggered in the vertical projection space of the reference ground corresponds to the vertical projection of the corresponding flat radiation source on the reference ground, the vertical projection of the half-wave oscillator radiation source in the single-point feed form on the reference ground, and the intersection relation between the vertical projections of the connecting line sections at the two ends of the half-wave oscillator radiation source in the double-point feed form on the reference ground. The arrangement structure between the two radiation sources of the corresponding spatially staggered integrated transceiving and separating microwave detection antenna is various, and further optimization or deformation design of the spatially staggered integrated transceiving and separating microwave detection antenna is formed by spatially staggering three or more radiation sources in the vertical projection space of the reference ground based on further spatial staggering of at least one radiation source and the corresponding radiation source on the basis of the basic structure that the two spatially staggered radiation sources integrally share the reference ground, which is not limited by the present invention.

It will be appreciated by persons skilled in the art that the above embodiments are only examples, wherein features of different embodiments may be combined with each other to obtain embodiments which are easily conceivable in accordance with the disclosure of the invention, but which are not explicitly indicated in the drawings.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims

1. A space staggered integrated receiving and transmitting separation microwave detection antenna is characterized by comprising:

a reference ground; and

2. The spatially staggered integral transceiving microwave detecting antenna according to claim 1, wherein polarization directions of two radiation sources of the spatially staggered integral transceiving microwave detecting antenna are in a spatially orthogonal state.

3. The spatially interleaved unified duplexer antenna as claimed in claim 2, wherein the spatially interleaved unified duplexer antenna has a first feeding line extending from the first feeding point of the half-wave dipole radiation source of the single-point feeding configuration toward the reference ground, wherein the first feeding line extends laterally from the first feeding point to the half-wave dipole radiation source of the single-point feeding configuration and is configured to have an electrical length equal to or greater than 1/128 and equal to or less than 1/4 wavelength.

4. The spatially staggered integral transceiving split microwave detecting antenna according to claim 3, wherein at least one branch load extends between two ends of the half-wave dipole radiation source in the single-point feeding configuration.

5. The spatially interleaved unified transmitting/receiving split microwave probe antenna according to claim 4, wherein the half-wave dipole radiation source in the single-point feeding configuration has two first coupling sections extending in the same direction parallel to the reference ground direction with both ends thereof as ends, and a first connecting section connecting between the two first coupling sections in the direction perpendicular to the reference ground direction.

6. The spatially interleaved unified transmitting/receiving split microwave probe antenna according to claim 5, wherein the first feed line has a size in which both first coupling sections extend in a direction that is thickened with respect to the first coupling sections.

7. The spatially interleaved unified transmitting/receiving microwave probe antenna according to claim 6, wherein the spatially interleaved unified transmitting/receiving microwave probe antenna has a microstrip transmission line extending from an end of the first feeding line away from the first feeding point, wherein the microstrip transmission line is spaced apart from the reference ground within a distance range of λ/16 or less.

8. The spatially interleaved unified transmitting/receiving split microwave probe antenna according to claim 6, wherein at least one of said stub loads is disposed to extend from said first connection section in a direction toward said reference ground.

9. The spatially interleaved unified transmitting/receiving split microwave probe antenna according to claim 8, wherein the stub load extending from the first connecting section in a direction toward the reference ground is configured to extend to be electrically connected to the reference ground.

10. The spatially interleaved integral transceiver/divider microwave detection antenna according to claim 8, wherein a physical length of the first coupling segment extending from the first feeding end is smaller than a physical length of the other first coupling segment, so as to form a structure state in which two ends of the half-wave dipole radiation source in the single-point feeding configuration are staggered in a direction perpendicular to the reference ground.

11. The spatially interleaved unified transmit receive split microwave probe antenna according to claim 10, wherein said first feed point is located at said first feed end.

12. The spatially staggered integrated transmitting/receiving microwave detecting antenna according to any one of claims 3 to 11, wherein one of the radiation sources of the spatially staggered integrated transmitting/receiving microwave detecting antenna is set to be the half-wave dipole radiation source of the single-point feeding configuration, and the other radiation source of the spatially staggered integrated transmitting/receiving microwave detecting antenna is set to be the flat radiation source.

13. The spatially interleaved integral transceiver de-coupling microwave detection antenna as claimed in claim 12, wherein the planar radiation source is grounded by electrically connecting a metallized via connection structure to the ground reference at a physical center point of the planar radiation source.

14. The spatially staggered integrated transmitting/receiving microwave detecting antenna according to any one of claims 3 to 11, wherein one of the radiation sources of the spatially staggered integrated transmitting/receiving microwave detecting antenna is set as the half-wave oscillator radiation source of the single-point feeding configuration, and the other radiation source of the spatially staggered integrated transmitting/receiving microwave detecting antenna is set as the half-wave oscillator radiation source of the double-point feeding configuration.

15. The spatially staggered unified transmitting-receiving microwave detecting antenna according to claim 14, wherein the spatially staggered unified transmitting-receiving microwave detecting antenna has a second feeding line respectively extending from the two second feeding ends of the half-wave dipole radiation source in the dual-point feeding configuration, wherein the half-wave dipole radiation source in the single-point feeding configuration is staggered from the half-wave dipole radiation source in the dual-point feeding configuration on the same side of the reference ground in a state of passing through a gap between the two second feeding lines, and forms a state in which a polarization direction of the half-wave dipole radiation source in the single-point feeding configuration is spatially orthogonal to a polarization direction of the half-wave dipole radiation source in the dual-point feeding configuration.

16. The spatially staggered integrated transmitting-receiving separated microwave detecting antenna as claimed in claim 15, wherein a distance between two ends of the half-wave dipole radiation source in the dual-point feeding configuration is greater than or equal to λ/128 and less than or equal to λ/6.

17. The spatially interleaved unified transmitting/receiving split microwave probe antenna according to claim 16, wherein said two second feeding lines extend sequentially from said two second feeding ends in a direction toward and toward said reference ground, so that said two second feeding lines have two feeding sections close to each other within a distance range smaller than a distance between said two second feeding ends.

18. The spatially interleaved unified transmitting/receiving microwave detecting antenna according to claim 17, wherein both ends of the two second feeding lines connected to the excitation signal are bent and extended in a direction away from each other to the corresponding feeding sections, so as to form a state in which a distance between both ends of the two second feeding lines connected to the excitation signal is greater than a distance between the feeding sections.

19. The spatially interleaved unified transmitting-receiving split microwave probe antenna according to claim 18, wherein said half-wave dipole radiation source in dual-point feeding configuration further comprises a second connection section, wherein two ends of said second connection section are respectively connected to two said second feeding ends and have an electrical length of 1/4 or less.

20. The spatially interleaved integral transceiver-splitting microwave detecting antenna according to claim 18, wherein the two second coupling sections extend in the same direction from two ends of the half-wave dipole radiation source in the double-point feeding configuration in a direction perpendicular to and away from the reference ground.

21. The spatially staggered integral transceiving split microwave detecting antenna according to claim 20, wherein said spatially staggered integral transceiving split microwave detecting antenna has at least one branch load extending from said half-wave dipole radiation source in a dual-point feeding configuration.

22. The spatially interleaved integral transceiving split microwave detecting antenna according to any one of claims 3 to 11, one of the radiation sources of the spatial staggered integrated transceiving and separating microwave detection antenna is set to be in the state of the half-wave oscillator radiation source in the single-point feeding mode, the other radiation source of the space staggered type integrated transceiving and separating microwave detection antenna is set as a half-wave dipole radiation source of the other single-point feeding form, wherein the two half-wave oscillator radiation sources in the single-point feeding form are arranged in a staggered manner on the same side of the reference ground in a state that one half-wave oscillator radiation source in the single-point feeding form passes through a gap between two ends of the other half-wave oscillator radiation source in the single-point feeding form, so as to form the state that the polarization directions of the two half-wave oscillator radiation sources in the single-point feeding form are orthogonal in space.