CN213124733U - Transmit-receive homonymous reverse-phase microwave detection module - Google Patents

Abstract

The utility model discloses a receiving and dispatching same-element reverse-phase type microwave detection module, wherein the receiving and dispatching same-element reverse-phase type microwave detection module comprises a reference ground and two radiation elements, wherein the radiation elements are separated from the reference ground, wherein the radiation elements are provided with an electrical feeding point correspondingly connected with an excitation signal and another electrical feeding point correspondingly outputting a return signal, wherein the physical central point of the radiation elements is positioned on the connecting line of the two electrical feeding points and positioned between the two electrical feeding points on the connecting line of the two electrical feeding points, so that the radiation elements are connected with the excitation signal and excited state, the return signal output by the radiation elements can be reversed, wherein the straight line passing through the physical central point of the radiation elements and perpendicular to the two connecting lines of the electrical feeding points on each radiation element is taken as a zero potential line of the radiation elements, wherein two of said radiating elements are adjacently disposed in a state where two of said zero potential lines are perpendicular to each other.

Description

Transmit-receive homonymous reverse-phase microwave detection module

Technical Field

The utility model relates to a microwave detection field, in particular to receive and dispatch same-element reverse-phase type microwave detection module based on Doppler effect principle is used for microwave detection.

Background

With the development of the internet of things technology, the requirements of artificial intelligence, smart home and intelligent security technology on environment detection, particularly on detection accuracy of human existence, movement and micro motion are higher and higher, and accurate judgment basis can be provided for intelligent terminal equipment only by acquiring a stable enough detection result. Among them, the radio technology, including the microwave detection technology based on the doppler effect principle, is used as a person and an object, and the important junction between the objects has unique advantages in the behavior detection and the existence detection technology, and can detect the action characteristics, the movement characteristics and the micromotion characteristics of a moving object, such as a person, even the heartbeat and the respiration characteristic information of the person without invading the privacy of the person, thereby having wide application prospect.

Further, in an unlicensed ISM band defined by ITU-R (ITU radio communication Sector) for use by organizations such as industry, science and medicine, frequency bands applied to microwave detection mainly include limited frequency band resources such as 2.4Ghz, 5.8Ghz, 10.525Ghz, 24.125Gh, etc., and a corresponding microwave detector needs to observe a certain transmission power (generally, the transmission power is lower than 1W) to reduce interference to other radio devices when using these frequency bands, although the definition and licensing of different frequency bands can specify the use frequency bands of radios to reduce the probability of mutual interference between radio devices of different frequency bands, under the licensing of limited frequency band resources, with the high-speed development of the internet of things technology, the radio use coverage rate corresponding to adjacent frequency bands or the same frequency band is increased at a high speed, the problem of mutual interference between adjacent or same frequency band radios is becoming more serious, and with people-oriented intelligent competition, the need for accurate detection of human body motion characteristics, including respiratory motion and even heartbeat motion, is also rapidly increasing. Therefore, the anti-interference performance is one of the factors that measure the accuracy of the corresponding microwave detection module, and under the circumstance that the problem of mutual interference between radios is becoming serious, the accuracy of the existing microwave detection module is difficult to maintain, and not to mention, is improved to meet the requirement of accurate detection of human motion characteristics including breathing motion and even heartbeat motion.

Specifically, in the existing microwave detection module, the microwave detection module designed by using the patch antenna structure is more exquisite and relatively popular for feeding back the human body activity, wherein the corresponding feeding design is divided into a transmitting-receiving integrated design and a transmitting-receiving separated design, as shown in fig. 1A and 1B, fig. 1A and 1B respectively illustrate a structure of the existing microwave detection module designed by the transmitting-receiving integrated design and the transmitting-receiving separated design, wherein the existing microwave detection module designed by the transmitting-receiving integrated design includes a reference ground 10P and a radiation source 20P, wherein the radiation source 20P includes at least one radiation element 21P, wherein each radiation element 21P is spaced from the reference ground 10P in a nearly parallel state, wherein each radiation element 21P is provided with only one feeding point 211P, and wherein each radiation element 21P is fed at the feeding point 211P thereof and emits the corresponding excitation signal frequency in interaction with the reference ground 10P And a reflected echo formed by the microwave beam being reflected by the corresponding object is received, and an echo signal corresponding to the frequency of the reflected echo is transmitted at the feeding point 211P, so as to generate a doppler intermediate frequency signal corresponding to the frequency difference between the excitation signal and the echo signal in a subsequent mixing detection manner based on the doppler effect principle, and then the doppler intermediate frequency signal is a feedback to the activity of the corresponding object, wherein the number of the radiating elements 21P is allowed to be set to one corresponding to fig. 1A due to the fact that the radiating elements 21P are fed and transmit the echo signal at the same point, so as to adapt to the current miniaturization trend, but on one hand, an additional phase shifting circuit needs to be provided to meet the phase requirement of the mixing processing of the excitation signal and the echo signal, and the layout of the existing microwave detection module adopting the transceiver design is easily crowded and not good for the anti-interference performance while the cost is increased, on the other hand, the influence between the excitation signal and the echo signal cannot be avoided, which is not beneficial to the frequency mixing processing of the excitation signal and the echo signal, and the accuracy and stability of the existing microwave detection module adopting the transceiver-transceiver design are correspondingly reduced. Therefore, to meet the current requirement for detection accuracy of microwave detection modules, the existing microwave detection module using the transceiver-splitter design is used in more and more application scenarios, wherein the existing microwave detection module using the transceiver-splitter design includes a ground reference 10P and a pair of radiation sources 20P, wherein each of the radiation sources 20P includes at least one radiation element 21P, wherein each of the radiation elements 21P is spaced from the ground reference 10P in a parallel state, wherein each of the radiation elements 21P is provided with only one feeding point 211P, wherein one of the radiation sources 20P in a pair of the radiation sources 20P is fed at the feeding point 211P of the radiation element 21P to emit a microwave beam corresponding to a corresponding excitation signal frequency in interaction with the ground reference 10P, and the other radiation source 20P receives a reflected echo formed by the microwave beam reflected by a corresponding object and corresponding to the reflected echo of the radiation element 21P The feeding point 211P transmits an echo signal corresponding to the reflected echo frequency, that is, the existing microwave detection module adopting the transceiver-splitting design feeds the feeding point 211P of the radiating element 21P of one of the radiating elements 20P of a pair of the radiating elements 20P and transmits the echo signal at the feeding point 211P of the radiating element 21P of the other radiating element 20P to ensure the detection accuracy in the transceiver-splitting manner, however, the number of the radiation elements 21P is required to be at least two, and a separation space 30P is further required to be further arranged between the pair of radiation sources 20P to reduce the mutual influence between the pair of radiation sources 20P, so as to ensure the anti-interference performance and stability of the existing microwave detection module adopting the transceiving separation design, and the existing microwave detection module adopting the transceiving separation design is difficult to adapt to the current miniaturization trend.

In summary, it is difficult for the current microwave detection module to adapt to the current detection accuracy requirement and the current miniaturization trend.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a receiving and dispatching are with first looks formula microwave detection module, wherein the difference through with same radiation element is right with an excitation signal respectively radiation element feeds and from the corresponding echo signal of radiation element receipt, with realizing the excitation signal with allow in the time of echo signal opposition the quantity of radiation element is set up to one, thereby the guarantee the receiving and dispatching are adapted to current miniaturized trend in the time of the degree of accuracy of first looks formula microwave detection module.

Another object of the present invention is to provide a receiving and transmitting homonymy phase-inversion type microwave detection module, wherein the radiating element has two electrical feeding points, wherein the physical center point of the radiating element is located two on the line of the electrical feeding points and two on the line of the electrical feeding points between the electrical feeding points, so that the radiating element is located in one of the electrical feeding points, the feeding state of the exciting signal is fed, and the other of the radiating element the electrical feeding points can transmit the echo signal opposite to the exciting signal, so as to realize the exciting signal and the echo signal are allowed while being opposite to the phase of the echo signal the number of the radiating element is set to one.

Another object of the present invention is to provide a receiving and transmitting module, wherein the exciting signal is in phase opposition to the echo signal to avoid the phase shift circuit, so as to simplify the circuit design of the receiving and transmitting module, which is beneficial to improvement, the stability and consistency of the receiving and transmitting module.

Another object of the present invention is to provide a receiving and transmitting module with phase inversion microwave detection, wherein the radiating element is in one of them the electricity feeding point is by the state of the excitation signal feed, from another of the radiating element the electricity feeding point can transmit with the excitation signal is in phase inversion the echo signal is avoided being fed and transmitted in the same point the echo signal and is favorable to reducing the excitation signal with the mutual influence between the echo signals, the correspondence is improved the accuracy and stability of the receiving and transmitting module with phase inversion microwave detection.

Another object of the present invention is to provide a receiving and transmitting module for detecting reverse phase microwave, wherein the receiving and transmitting module for detecting reverse phase microwave comprises a radiation element having a number equal to one, so as to realize the excitation signal and the echo signal is reversed phase to ensure the receiving and transmitting module for detecting reverse phase microwave is adapted to the current miniaturization trend when the accuracy of the module is high.

Another object of the present invention is to provide a receiving-transmitting homonymous phase-inversion type microwave detection module, wherein the number of the radiation elements of the receiving-transmitting homonymous phase-inversion type microwave detection module is at least two, wherein a straight line which passes through the physical center point of the radiation element and is perpendicular to the connecting line of the two electrical feeding points on the radiation element is taken as a zero potential line of the radiation element, wherein each of said radiating elements is adjacently disposed in a state where said zero potential lines coincide, wherein each of said electrical feeding points of each of said radiating elements on the same side as said zero potential line is electrically connected, that is, the radiation elements are adjacently arranged in a state where the zero potential lines coincide in the same polarization direction, therefore, the gain of the receiving and transmitting homonymous inverse type microwave detection module is improved while the plane beam angle of the receiving and transmitting homonymous inverse type microwave detection module in the polarization direction is maintained, and the detection sensitivity of the receiving and transmitting homonymous inverse type microwave detection module is improved.

Another object of the present invention is to provide a receiving and transmitting phase-reversed microwave detecting module, wherein the receiving and transmitting phase-reversed microwave detecting module has two radiation elements, two radiation elements are located on the same side of the zero potential line, two electrical feeding points are electrically connected, two radiation elements are located in the same polarization direction, and the zero potential line is located on the same side of the zero potential line, so that the same radiation elements are limited in number, and the receiving and transmitting phase-reversed microwave detecting module has higher gain and smaller size than the existing microwave detecting module designed for receiving and transmitting separation.

Another object of the present invention is to provide a receiving and transmitting phase inversion type microwave detecting module, wherein the receiving and transmitting phase inversion type microwave detecting module includes two radiating elements, two radiating elements are disposed adjacently to each other, that is, two the radiating elements have the polarization direction in the orthogonal state, so as to be under the same limitation of the number of radiating elements, the receiving and transmitting phase inversion type microwave detecting module has higher gain and smaller volume for the existing microwave detecting module designed separately for receiving and transmitting.

Another object of the present invention is to provide a receiving and transmitting homonymous phase type microwave detecting module, wherein the number of the radiating elements of the receiving and transmitting homonymous phase type microwave detecting module is at least two, wherein each radiating element is adjacently disposed in a state where two connecting lines of the electrical feeding points of each radiating element coincide, that is, each radiating element is adjacently disposed in a state where the electrical feeding points are located on the same straight line, wherein two adjacent electrical feeding points of two adjacent radiating elements are electrically connected, that is, two adjacent electrical feeding points of two adjacent radiating elements are electrically connected, and each corresponding radiating element is adjacently disposed in the same polarization direction in a state where the electrical feeding points are located on the same straight line, so as to improve the gain of the receiving and transmitting homonymous phase type microwave detecting module, and under the limit of the same number of radiation elements, the receiving and transmitting homonymy reverse-phase type microwave detection module has smaller volume compared with the existing microwave detection module with the receiving and transmitting separation design.

Another object of the present invention is to provide a receiving and transmitting homonymy reverse-phase microwave detection module, wherein the physical center point of the radiating element is located two on the line of the electrical feeding point and two on the line of the electrical feeding point are located two states between the electrical feeding points, two of the radiating element the electrical feeding point is symmetrical with the physical center point of the radiating element, so that the radiating element is located in one of the electrical feeding point is fed by the excitation signal, which is favorable for maintaining the radiation element in another state of the excitation signal feeding point transmission the stability and guarantee of the echo signal with the inverse phase of the excitation signal.

Another objective of the present invention is to provide a receiving and transmitting homonymy inverse microwave detecting module, wherein the radiating element is in one of them the electricity feeding point is connected to one pole of the excitation signal and the fed state, the radiating element is connected to the other pole of the excitation signal and the other pole of the radiating element is connected to one of them the electricity feeding point and the physical central point of the radiating element form a closed loop to the excitation signal, so as to reduce the polarization balance mismatch caused by the design and processing error of the radiating element, thereby being beneficial to ensure the working stability of the receiving and transmitting homonymy inverse microwave detecting module.

Another object of the present invention is to provide a receiving and transmitting phase-reversed microwave detection module, wherein the radiation element is in one of them the electricity feed point is accessed one of the poles of the excitation signal and the state of being fed, through in one of them of the radiation element the electricity feed point with the physical central point of the radiation element forms right the closed loop of the excitation signal's mode, the receiving and transmitting phase-reversed microwave detection module is reduced in the impedance of the frequency of the deviated resonance working point, corresponds the frequency bandwidth of the receiving and transmitting phase-reversed microwave detection module is narrowed and is favorable for improving the anti-interference performance of the receiving and transmitting phase-reversed microwave detection module.

Another object of the present invention is to provide a receiving-transmitting homonymous phase-inversion type microwave detection module, wherein the receiving-transmitting homonymous phase-inversion type microwave detection module includes a reference ground, wherein in a state where the radiating element is fed with one of the electrical feeding points being connected to one pole of the excitation signal, the ground reference is connected to the other pole of the excitation signal, wherein the radiating element is electrically connected with the reference ground at a physical central point of the radiating element by a metallized via structure, such that a closed loop for said excitation signal is formed between one of said electrical feed points of said radiating element and a physical center point of said radiating element, therefore, the method is simple and easy to implement, does not cause congestion of circuit layout, and is beneficial to improving the anti-interference performance of the receiving and transmitting homonymy reverse-phase type microwave detection module and simultaneously ensuring the stability of the receiving and transmitting homonymy reverse-phase type microwave detection module and adapting to the current miniaturization trend.

Another object of the present invention is to provide a receiving and transmitting phase-reversed microwave detecting module, wherein it is right to the position description of the electricity feeding point is right to the electricity equivalent feeding position's of the radiation element is limited, the structure is various to the entity physics feeding implementation of the electricity feeding point, and is the same two of the radiation element the entity physics feeding structure that the electricity feeding point corresponds is not restricted to the same, therefore it is corresponding the receiving and transmitting phase-reversed microwave detecting module's circuit design is flexible and various and can be adapted to different layout demands.

Another object of the present invention is to provide a transceiving homonymous phase type microwave detecting module, wherein the electrical feeding point corresponding to the incoming of the excitation signal and the electrical feeding point corresponding to the outgoing of the echo signal are reciprocable based on a transceiving reciprocity principle, wherein the electrical feeding point corresponding to the incoming of the excitation signal is taken as an example, in a state of a point feeding (probe feeding) structure corresponding to the electrical feeding point, when the radiation element is implemented in a feeding connection point deviating from a physical central point of the radiation element to the excitation signal, the electrical feeding point takes the feeding connection point, and when the radiation element is implemented in a feeding connection point deviating from the physical central point of the radiation element to the excitation signal, the electrical equivalent feeding point of the radiation element is located at a midpoint of a connection line of the two feeding connection points, the electrical feeding point is the middle point of the connecting line of the two feeding connection points, the position relation of the two feeding connection points is set to meet the condition that the middle line of the connecting line of the two feeding connection points passes through the physical central point of the radiating element, namely, in the state of a point feeding (probe feeding) structure corresponding to the electrical feeding point, the electrical connection relation and the position description of the electrical feeding point are limits on the electrical connection relation of the feeding connection points of an entity and the electrical equivalent feeding position of the radiating element, the specific number and the positions of the feeding connection points are flexible and changeable, and the circuit design of the corresponding receiving and transmitting same-element reverse-phase type microwave detection module is flexible and diversified and can be suitable for different layout requirements.

Another object of the present invention is to provide a receiving-transmitting homonymous inverse microwave probe module, wherein the electrical feeding point corresponds to the state of the microstrip feeding structure, the radiating element transmits the echo signal via a microstrip feed line or is fed by the excitation signal, wherein the electrical feed point is electrically equivalent to a point on the radiating element electrically connected to the microstrip feed line, namely, the description of the electrical connection relation and the position of the electrical feeding point corresponds to the definition of the electrical connection relation and the position of the point which is electrically connected with the microstrip feed line on the radiating element, the physical and physical feeding structures corresponding to the electrical feeding point are various, and the physical feeding structures corresponding to the two electrical feeding points of the same radiating element are not limited to be the same, therefore, the circuit design of the corresponding transmitting-receiving homonymous reverse-phase type microwave detection module is flexible and diversified, and the circuit can adapt to different layout requirements.

Another object of the present invention is to provide a receiving and transmitting homonymy phase-inverted microwave detecting module, wherein the electrical feeding point corresponds to the state of the edge feeding structure, the radiating element is transmitted through an edge feeding line the echo signal or the quilt is fed by the excitation signal, wherein the edge feeding line is a microstrip line adjacent to and parallel to the straight edge of the radiating element, wherein the electrical equivalent feeding point of the radiating element is electrically equivalent to the middle point of the edge feeding line set as the microstrip line, that is, the electrical connection relationship and the position description of the electrical feeding point are the entity, the electrical connection relationship of the edge feeding line and the definition of the middle point position of the edge feeding line, the edge feeding line is connected to the excitation signal and the output, the specific position of the echo signal is not defined and does not influence the definition of the position of the electrical feeding point, so the circuit design of the receiving and transmitting homonymy phase-inverted microwave detecting module is flexible and various and can be adapted to different arrangements Office requirements.

Another object of the present invention is to provide a receiving-transmitting homonymous inverse microwave detection module, wherein based on the receiving-transmitting reciprocity principle, the electrical feed point corresponding to the coupling into the excitation signal and the electrical feed point corresponding to the transmission of the echo signal can be reciprocal, and the electrical feeding point on the radiating element corresponding to the transmission of the echo signal allows the excitation signal to be accessed correspondingly at the same time, namely, on the basis that one of the electrical feeding points of the radiating element is correspondingly accessed into the excitation signal and the other electrical feeding point is correspondingly connected with the echo signal for transmission, the two electrical feeding points of the radiating element are allowed to be set to correspondingly switch in the excitation signal or transmit the echo signal at the same time, so as to form the reverse feeding to the radiation element to improve the radiation efficiency or the receiving efficiency of the radiation element, and correspondingly enhance the detection sensitivity of the homonymous reverse-phase type microwave detection module.

According to an aspect of the utility model provides a receiving and dispatching are with first reverse phase formula microwave detection module, receiving and dispatching are with first reverse phase formula microwave detection module and include:

a reference ground, wherein the reference ground is provided as a sheet-like conductive layer; and

two radiation elements, wherein each radiation element is configured as a sheet-shaped conductive layer and is separated from the reference ground in a state that the layers of the two sheet-shaped conductive layers tend to be parallel, each radiation element has an electric feed point correspondingly connected with an excitation signal and another electric feed point correspondingly outputting an echo signal, wherein the electric feed point is configured with one of a point feed structure, a microstrip feed structure and an edge feed structure and has a corresponding physical feed structure, and the state of the point feed structure is corresponding to the state of the electric feed point, when the radiation element is configured with a feed connection point which is deviated from the physical central point of the radiation element and is connected with the excitation signal or outputs the echo signal, the corresponding electric feed point equivalently takes the feed connection point, and when the radiation element is configured with two feed connection points which are deviated from the physical central point of the radiation element and are positioned on the radiation element When the connection points are connected into the excitation signal or the echo signal is output, the position relation of the two feeding connection points is set to meet the condition that the middle line of the connection line of the two feeding connection points passes through the physical central point of the radiation element, and the corresponding electrical feeding point is equivalent to the middle point of the connection line of the two feeding connection points; corresponding to the state that the electrical feed point is arranged in a microstrip feed structure, the radiation element is arranged to be accessed into the excitation signal or output the echo signal through a microstrip feed line electrically connected with the radiation element, and the corresponding electrical feed point is equivalent to a point on the radiation element, which is electrically connected with the microstrip feed line; the radiating element is arranged to switch in the excitation signal or output the echo signal via a feeder line corresponding to a state that the radiating element is arranged in a side-feed structure at the electrical feed point, wherein the side feeder is a microstrip line adjacent to and parallel to the straight side of the radiating element, the corresponding electrical feed point is equivalent to the midpoint of the side feeder, wherein the physical center point of the radiating element is located on the connecting line of the two electrical feeding points and between the two electrical feeding points on the connecting line of the two electrical feeding points, in a state where the radiating element is excited to feed by being connected to the excitation signal, the echo signal outputted from the radiating element can be inverted, wherein a straight line which passes through the physical center point of each radiating element and is perpendicular to the connecting line of the two electrical feeding points is taken as a zero potential line of the radiating element, wherein two of said radiating elements are adjacently disposed in a state where two of said zero potential lines are perpendicular to each other.

In an embodiment, each of the radiation elements is respectively connected to the excitation signal through a microstrip feed line and outputs the echo signal through another microstrip feed line, a point on the radiation element electrically connected to the microstrip feed line is taken as the corresponding electrical feed point, the microstrip feed lines correspondingly connected to the excitation signal of the two radiation elements are electrically connected, and the microstrip feed lines correspondingly outputting the echo signal of the two radiation elements are electrically connected.

In an embodiment, the microstrip feed lines of the two radiating elements, which are correspondingly connected to the excitation signal, are arranged with equal length, and the microstrip feed lines of the two radiating elements, which are correspondingly connected to the echo signal, are arranged with equal length.

In an embodiment, each of the radiating elements respectively accesses the excitation signal through a feeding connection point and outputs the echo signal through another electrical feeding point, and the feeding connection point is taken as the corresponding electrical feeding point.

In an embodiment, each of the radiation elements is respectively connected to the excitation signal through one side feeder line and outputs the echo signal through the other side feeder line, where the side feeder line is a microstrip line adjacent to and parallel to a straight side of the radiation element, a midpoint of the side feeder line set as the microstrip line is taken as a corresponding electrical feed point, the side feeder lines of the two radiation elements, which are correspondingly connected to the excitation signal, are electrically connected, and the side feeder lines of the two radiation elements, which are correspondingly output the echo signal, are electrically connected.

In an embodiment, the radiating element is configured as a rectangular plate-like conductive layer, wherein a line connecting two electrical feeding points of the radiating element is perpendicular to two opposite sides of the rectangular radiating element.

In an embodiment, two sides of the radiation element on the zero potential line are concavely arranged in a direction towards a physical center point of the radiation element.

In an embodiment, the radiating elements are arranged as circular sheet-like conductive layers.

In an embodiment, in a state where each of the radiating elements is switched in the excitation signal in the physical feeding structure corresponding to one of the electrical feeding points and outputs the echo signal in the physical feeding structure corresponding to the other of the electrical feeding points, the physical feeding structure corresponding to the electrical feeding point of each of the radiating elements that outputs the echo signal further switches in the excitation signal in an inverted phase, so that an inverted excitation feed is formed for the radiating element at the two electrical feeding points to improve the radiation efficiency of the radiating element.

In an embodiment, an actual physical feeding structure of the radiating element corresponding to the output of the echo signal is electrically connected to an actual physical feeding structure corresponding to the access of the excitation signal to form a phase shift line, so that when the radiating element accesses the excitation signal at one of the electrical feeding points, the excitation signal shifts the phase through the phase shift line and excites the radiating element in reverse phase at the other electrical feeding point, thereby forming reverse feeding to the radiating element.

Drawings

Fig. 1A is a schematic structural diagram of a conventional microwave detection module adopting a transceiver-transceiver design.

Fig. 1B is a schematic structural diagram of a conventional microwave detection module adopting a transceiver-splitter design.

Fig. 2 is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to an embodiment of the present invention.

Fig. 3A is a schematic structural diagram of the receiving-transmitting homonymous inverse-phase microwave detection module according to a modified embodiment of the above-mentioned embodiment of the present invention.

Fig. 3B is a schematic structural diagram of the receiving-transmitting homonymous inverse-phase microwave detection module according to another modified embodiment of the above embodiment of the present invention.

Fig. 4A is a schematic diagram of a feeding structure of the receiving-transmitting homonymous inverse microwave detection module according to the above embodiment of the present invention.

Fig. 4B is a schematic diagram of another feeding structure of the receiving-transmitting homonymous inverse-phase microwave detection module according to the above embodiment of the present invention.

Fig. 5A is a schematic structural diagram of the receiving-transmitting homonymous inverse-phase microwave detection module according to another modified embodiment of the above embodiment of the present invention.

Fig. 5B is a schematic structural diagram of the receiving-transmitting homonymous inverse-phase microwave detection module according to another modified embodiment of the above embodiment of the present invention.

Fig. 6A is a schematic structural diagram of the receiving-transmitting homonymous inverse-phase microwave detection module according to another modified embodiment of the above embodiment of the present invention.

Fig. 6B is a schematic structural diagram of the receiving-transmitting homonymous inverse-phase microwave detection module according to another modified embodiment of the above embodiment of the present invention.

Fig. 6C is a schematic structural diagram of the receiving-transmitting homonymous inverse-phase microwave detection module according to another modified embodiment of the above embodiment of the present invention.

Fig. 6D is a schematic structural diagram of the receiving-transmitting homonymous inverse-phase microwave detection module according to another modified embodiment of the above embodiment of the present invention.

Fig. 7A is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to another embodiment of the present invention.

Fig. 7B is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to another embodiment of the present invention.

Fig. 7C is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to another embodiment of the present invention.

Fig. 7D is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to another embodiment of the present invention.

Fig. 8A is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to another embodiment of the present invention.

Fig. 8B is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to another embodiment of the present invention.

Fig. 8C is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to another embodiment of the present invention.

Fig. 9A is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to another embodiment of the present invention.

Fig. 9B is a schematic structural diagram of a transmitting-receiving homonymous inverse microwave detection module according to another embodiment of the present invention.

Fig. 9C is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to another embodiment of the present invention.

Fig. 9D is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to another embodiment of the present invention.

Fig. 9E is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to another embodiment of the present invention.

Fig. 9F is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to another embodiment of the present invention.

Fig. 9G is a schematic structural diagram of a receiving-transmitting homonymous inverse microwave detection module according to another 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 a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 2 to 9E of the drawings of the specification of the present invention, a receiving and transmitting homonymous phase-reversal type microwave detecting module according to various embodiments of the present invention is illustrated, in these embodiments of the present invention, the receiving and transmitting homonymous phase-reversal type microwave detecting module includes a radiation source 20 and a reference ground 10 configured as a sheet-like conductive layer, wherein the radiation source 20 includes at least one radiation element 21 also configured as a sheet-like conductive layer, wherein each of the radiation elements 21 is spaced apart from the reference ground 10 in a state where the layer of the two sheet-like conductive layers tends to be parallel, so that in a state where the radiation element 21 is excited and fed by a corresponding excitation signal, the radiation element 21 can interactively emit a microwave beam corresponding to the frequency of the excitation signal with the reference ground 10, and receive a reflected echo formed by the reflection of the microwave beam by a corresponding object and output an echo signal corresponding to the reflected echo frequency, generating a doppler intermediate frequency signal corresponding to the frequency/phase difference between the excitation signal and the echo signal by means of frequency mixing detection based on the doppler effect principle, wherein the doppler intermediate frequency signal is a feedback to the activity of the corresponding object, wherein each of the radiating elements 21 has two electrical feeding points 211, respectively, based on the physical feeding structure of the radiating element 21 in the fed state, wherein the physical center point of the radiating element 21 is located on the connection line of the two electrical feeding points 211 and located between the two electrical feeding points 211 on the connection line of the two electrical feeding points 211, so that when the radiating element 21 accesses the excitation signal by the physical feeding structure corresponding to one of the electrical feeding points 211 and outputs the echo signal by the physical feeding structure corresponding to the other electrical feeding point 211, the echo signal output from the radiation element 21 is in phase opposition to the excitation signal, that is, the number of the radiation elements 21 is allowed to be set to one while realizing the phase opposition of the excitation signal and the echo signal, so that the accuracy of the transceiving homonymy phase opposition type microwave detection module is guaranteed and the current miniaturization trend is adapted.

It is worth mentioning that the introduction of the electrical feeding point 211 is to limit the electrical equivalent feeding position of the radiating element 21, the physical feeding structures corresponding to the electrical feeding point 211 are various, and the physical feeding structures corresponding to the two electrical feeding points 211 of the same radiating element 21 are not limited to be the same, so that the circuit design of the corresponding transceiving identical-element reverse-phase microwave detecting module is flexible and various and can be adapted to different layout requirements.

Specifically, based on the principle of reciprocity between transmission and reception, the electrical feeding point 211 corresponding to the connection of the excitation signal and the electrical feeding point 211 corresponding to the output of the echo signal can be reciprocity, wherein taking the electrical feeding point 211 corresponding to the connection of the excitation signal as an example, in the state of the point feeding (probe feeding) structure corresponding to the electrical feeding point 211, when the radiation element 21 is implemented on one feeding connection point 2111 of the radiation element 21, which is offset from the physical central point of the radiation element 21, to access the excitation signal, the electrical feeding point 211 is located at the feeding connection point 2111, and when the radiation element 21 is implemented on two feeding connection points 2111 of the radiation element 21, which are offset from the physical central point of the radiation element 21, to access the excitation signal, the electrically equivalent feeding point 211 of the radiation element 21 is located at the midpoint of the connection line of the two feeding connection points 2111, and the positional relationship between the two feeding connection points 2111 should be set so that the midline of the connecting line of the two feeding connection points 2111 passes through the physical central point of the radiating element 21, i.e. the electrical feeding point 211 is the midpoint of the connecting line of the two feeding connection points 2111; in a state where the electrical feeding point 211 corresponds to a microstrip feeding structure, the radiating element 21 is connected to the excitation signal through a microstrip feeding line 212, where the electrical feeding point 211 of the radiating element 21 is electrically equivalent to a point on the radiating element 21 electrically connected to the microstrip feeding line 212; in a state where the electrical feeding point 211 corresponds to an edge feeding structure, the radiating element 21 is connected to the excitation signal through an edge feeding line 213, where the edge feeding line 213 is a microstrip line adjacent to and parallel to a straight edge of the radiating element 21, where the electrical feeding point 211 of the radiating element 21 is electrically equivalent to a midpoint of the edge feeding line configured as a microstrip line, that is, the electrical connection relationship and the position description of the electrical feeding point 211 are definitions of the electrical connection relationship of the edge feeding line 213 and the midpoint position of the edge feeding line 213 of an entity, and the specific position where the edge feeding line 213 is connected to the excitation signal or outputs the echo signal is not defined and does not affect the definition of the position of the electrical feeding point 211.

That is, the radiation element 21 equivalently has one of the electrical feeding points 211 for receiving the excitation signal and the other of the electrical feeding points 211 for outputting the echo signal, wherein in a state where the radiation element 21 is configured to receive the excitation signal or output the echo signal in a point feeding (probe feeding) structure, when the radiation element 21 is implemented in a state where one of the feeding connection points 2111 of the radiation element 21, which is deviated from a physical central point of the radiation element 21, receives the excitation signal or transmits the echo signal, the feeding connection point 2111 is taken as the corresponding electrical feeding point 211, and when the radiation element 21 is implemented in a state where two feeding connection points 2111 of the radiation element 21, which are deviated from the physical central point of the radiation element 21, simultaneously receive the excitation signal or output the echo signal, a positional relationship between the two feeding connection points 2111 should be set to satisfy a connection between the two feeding connection points 2111 The midline of the line passes through the physical center point of the radiating element 21, wherein the midpoint of the two feeding connection points 2111 is taken as the corresponding electrical feeding point 211; in a state where the radiation element 21 is set to access the excitation signal or output the echo signal by using a microstrip feeding structure, the radiation element 21 accesses the excitation signal or outputs the echo signal through a microstrip feeding line 212, and a point on the radiation element 21 electrically connected to the microstrip feeding line 212 is taken as the corresponding electrical feeding point 211; in a state where the radiation element 21 is set to switch in the excitation signal or output the echo signal in an edge feeding structure, the radiation element 21 switches in the excitation signal or outputs the echo signal through one of the edge feeding lines 213, where the edge feeding line 213 is a microstrip line adjacent to and parallel to a straight edge of the radiation element 21, and a middle point of the edge feeding line 213 set as a microstrip line is taken as the corresponding electrical feeding point 211. Based on the above definition of the electrically equivalent feeding position of the physical feeding structure, in a state where the physical center point of the radiating element 21 is located on the connection line of the two electrical feeding points 211 and located between the two electrical feeding points 211, when the radiating element 21 accesses the excitation signal through the physical feeding structure corresponding to one of the electrical feeding points 211 and outputs the echo signal through the physical feeding structure corresponding to the other electrical feeding point 211, the echo signal output from the radiating element 21 is inverted with respect to the excitation signal. Therefore, the physical feeding structures corresponding to the electrical feeding points 211 are various, and the physical feeding structures corresponding to the two electrical feeding points of the same radiating element 21 are not limited to be the same, so that the circuit design of the corresponding transceiving identical-element reverse-phase microwave detection module is flexible and various and can be adapted to different layout requirements.

It is worth mentioning that, in the embodiments of the present invention, in a state that the physical center point of the radiating element 21 is located on the connection line of the two electrical feeding points 211 and located between the two electrical feeding points 211 on the connection line of the two electrical feeding points, the two electrical feeding points 211 of the radiating element 21 are preferably arranged to be symmetrical to the physical center point of the radiating element 21, so that the radiating element 21 is fed with the excitation signal by accessing the physical feeding structure corresponding to one of the electrical feeding points 211, which is beneficial to maintaining the stability of the echo signal output from the other electrical feeding point 211 of the radiating element 21 and ensuring that the echo signal is in phase opposition to the excitation signal.

Further, with a straight line passing through the physical center point of the radiating element 21 and perpendicular to the connection line of the two electrical feeding points 211 on the radiating element 21 as a zero potential line of the radiating element, in the embodiments of the present invention, in a state that the radiating element 21 is fed by accessing the excitation signal through a physical feeding structure corresponding to one of the electrical feeding points 211, the radiating element 21 is preferably disposed at the other pole of the zero potential line accessed to the excitation signal, and the zero potential line of the one electrical feeding point 211 of the radiating element 21 and the radiating element 21 forms a closed loop for the excitation signal, so as to reduce the polarization balance mismatch caused by the design and processing errors of the radiating element 21, thereby facilitating to ensure the working stability of the transceiver module.

It should be noted that, in a state where the radiation element 21 is fed by accessing the excitation signal through the physical feeding structure corresponding to one of the electrical feeding points 211, the impedance of the receiving and transmitting element reverse-phase type microwave detection module at a frequency deviating from the resonant operating point can be reduced by forming a closed loop circuit of the excitation signal through the zero potential line of the electrical feeding point 211 of the radiation element 21 and the zero potential line of the radiation element 21, and the frequency bandwidth corresponding to the receiving and transmitting element reverse-phase type microwave detection module is narrowed, which is beneficial to improving the anti-interference performance of the receiving and transmitting element reverse-phase type microwave detection module.

Preferably, in a state that the radiating element 21 is fed by accessing the excitation signal through a physical feeding structure corresponding to one of the electrical feeding points 211, the radiating element 21 is disposed at the other pole of the physical central point of the radiating element 21 accessing the excitation signal.

Specifically, the transceiver module further includes a feed source 30, wherein the feed source 30 is configured to allow the excitation signal to be generated by being powered by a corresponding power source, and specifically, the feed source 30 is a three-port functional circuit unit and has a positive connection terminal 31, a ground connection terminal 32 and a signal terminal 33, wherein the radiating element 21 is electrically connected to the signal terminal 33 of the feed source 30 in a physical and physical feed structure corresponding to one of the electrical feed points 211, wherein when the feed source 30 is powered by being electrically connected to a positive terminal and a ground terminal of a corresponding power source at the positive connection terminal 31 and the ground connection terminal 32, respectively, the positive terminal of the excitation signal corresponds to the positive connection terminal 31 of the feed source 30 electrically connected to the positive terminal of the corresponding power source when the feed source 30 is configured to generate the excitation signal between the positive connection terminal 31 and the signal terminal 33, the ground pole of the excitation signal corresponds to the signal terminal 33 of the feed 30; when the feed source 30 is set up in produce between the ground connection end 32 and the signal end 33 when the excitation signal, the positive pole of excitation signal corresponds to the feed source 30 the signal end 213, the ground of excitation signal corresponds to with corresponding the ground electrical connection of power the ground connection end 212 of feed source 30, wherein the concrete circuit form of feed source 30 is not limited, in some embodiments of the present invention, the feed source 30 is implemented as corresponding oscillation circuit, and in other embodiments of the present invention, the feed source 30 is implemented as corresponding microwave chip and has a transmitting terminal corresponding to the signal end 33, which the present invention is not limited to.

That is, in the state that the feed source 30 is electrically connected to the positive electrode and the ground electrode of the corresponding power source respectively at the positive electrode connection terminal 31 and the ground electrode connection terminal 32 to supply power, when the feed source 30 is disposed between the positive electrode connection terminal 31 and the signal terminal 33 to generate the excitation signal, the radiation element 21 is electrically connected to the signal terminal 33 to access the ground electrode of the excitation signal in a physical feed structure corresponding to one of the electrical feed points 211, and is electrically connected to the positive electrode of the corresponding power source in a zero potential line of the radiation element 21 to access the positive electrode of the excitation signal, and is electrically connected to the positive electrode connection terminal 31 of the feed source 30; when the feed source 30 is disposed between the ground connection end 32 and the signal end 33 to generate the excitation signal, the radiating element 21 is electrically connected to the signal end 33 by a physical feed structure corresponding to one of the electrical feed points 211 to access the positive electrode of the excitation signal, and is electrically connected to the ground of the corresponding power source by accessing the ground of the excitation signal on the zero potential line of the radiating element 21 to correspond to the ground connection end 32 of the feed source 30.

It is worth mentioning that the reference ground 10 is electrically connected to the positive electrode or the ground of the corresponding power source in a state that the feed source 30 is electrically connected to the positive electrode and the ground of the corresponding power source respectively at the positive electrode connection terminal 31 and the ground connection terminal 32 for supplying power. Particularly in the state that the ground reference 10 is electrically connected to the positive electrode of the corresponding power source, when the feed source 30 is disposed between the positive electrode connection terminal 31 and the signal terminal 33 to generate the excitation signal, the radiating element 21 is electrically connected to the positive electrode of the corresponding power source in the state of being electrically connected to the ground reference 10, and is connected to the positive electrode of the excitation signal, so as to be suitable for forming the electrical connection relationship between the radiating element 21 and the ground reference 10 through a metalized via structure and process, thereby being simple and easy to implement, avoiding the congestion of the circuit layout, and being beneficial to ensuring the consistency and stability of the transceiving same-element reverse-phase type microwave detection module; when the feed source 30 is disposed between the ground connection terminal 32 and the signal terminal 33 to generate the excitation signal, the radiating element 21 is electrically connected to the ground of the corresponding power source in the zero potential line, preferably in the state of being electrically connected to the ground 10, to receive the ground of the excitation signal, so as to be suitable for forming the electrical connection relationship between the radiating element 21 and the zero potential line and the ground 10 by a metalized via structure and process, thereby being simple and easy to implement, not causing congestion of the circuit layout, and being beneficial to ensuring the consistency and stability of the transceiving same-element reverse-phase type microwave detection module.

It can be understood that, based on the definition of the electrically equivalent feeding position of the aforementioned physical feeding structure, the physical feeding implementation structures of the electrical feeding points 211 are various, and the physical feeding structures corresponding to the two electrical feeding points 211 of the same radiating element 21 are not limited to be the same, and meanwhile, the number and shape of the radiating elements 21 are flexibly and variously set, so that the circuit design and the structural design of the corresponding transceiving homonymy inverse microwave detection module are flexible and various and can be adapted to different requirements.

Referring to fig. 2 of the drawings accompanying the present application, the structure of the electric feeding point 211 corresponding to the point feeding (probe feeding) structure and the number of the radiation elements 21 are one, according to the present invention, the structure of a receiving and transmitting same-element reverse-phase microwave detection module is shown, wherein in this embodiment of the present invention, the radiation elements 21 are arranged as rectangular sheet-shaped conductive layers, wherein two of the connection lines of the electric feeding point 211 are perpendicular to the two opposite sides of the radiation elements 21.

It is worth mentioning that, in this embodiment of the present invention, the number of the radiation elements 21 of the receiving and transmitting same-element reversed-phase type microwave detection module is one, so as to realize the excitation signal and the echo signal reversed-phase to ensure the accuracy of the receiving and transmitting same-element reversed-phase type microwave detection module and adapt to the current miniaturization trend.

Specifically, in this embodiment of the present invention, the radiation element 21 is implemented on one of the feeding connection points 2111 of the radiation element 21 deviating from the physical central point of the radiation element 21, which is accessed to the excitation signal and transmits the echo signal at the other feeding connection point 2111, that is, two feeding connection points 2111 are taken as two corresponding electrical feeding points 211, and based on the position relationship that the physical central point of the radiation element 21 is located on the connection line of the two electrical feeding points 211 and located between the two electrical feeding points 211 on the connection line of the two electrical feeding points, the connection line of the two feeding connection points 2111 passes through the physical central point of the radiation element 21.

In this embodiment of the present invention, corresponding to the foregoing description, the two electrical feeding points 211 of the radiating element 21 are disposed symmetrically with respect to the physical center point of the radiating element 21, so as to maintain the stability of the echo signal outputted from the other electrical feeding point 211 of the radiating element 21 and ensure the phase reversal of the echo signal and the excitation signal when the radiating element 21 is fed with the excitation signal by accessing the physical feeding structure corresponding to one of the electrical feeding points 211.

Referring further to fig. 3A and 3B of the drawings accompanying the present disclosure, in the state of the point feed (probe feed) structure corresponding to the electrical feed point 211, based on the number of the feed connection points 2111, the receiving and transmitting homonymy inverse type microwave detection modules corresponding to different modified embodiments of the embodiment illustrated in fig. 2 are respectively illustrated.

Corresponding to the homonymous phase-inverted microwave detecting module illustrated in fig. 3A, the radiating element 21 is implemented to simultaneously access the excitation signal at two feeding connection points 2111 of the radiating element 21, which are offset from a physical central point of the radiating element 21, and output the echo signal at another feeding connection point 2111 of the radiating element 21, which is offset from the physical central point of the radiating element 21, wherein the two feeding connection points 2111 for accessing the excitation signal are arranged in a positional relationship such that a central line of a connecting line of the two feeding connection points 2111 passes through the physical central point of the radiating element 21, a middle point of the two feeding connection points 2111 for accessing the excitation signal corresponds to the electrical feeding point 211 for accessing the excitation signal, another feeding connection point 2111 for outputting the echo signal corresponds to the electrical feeding point 211 for outputting the echo signal, based on the position relationship that the physical center point of the radiating element 21 is located on the connection line of the two electrical feeding points 211 and is located between the two electrical feeding points 211 on the connection line of the two electrical feeding points 211, the position relationship of the three feeding connection points 2111 satisfies: the center line of the connecting line of the two feeding connection points 2111 for accessing the excitation signal passes through the physical center point of the radiating element 21, and the center line of the connecting line of the two feeding connection points 2111 for accessing the excitation signal passes through the other feeding connection point 2111 for outputting the echo signal.

It is worth mentioning that, based on the principle of reciprocity of transmission and reception, the electrical feeding point 211 correspondingly connected to the excitation signal and the electrical feeding point 211 correspondingly outputting the echo signal can be reciprocable, that is, corresponding to the equivalent inverse type microwave detection module illustrated in fig. 3A, the electrical connection relationship between the two feeding connection points 2111 connected to the excitation signal and the other feeding connection point 2111 used for outputting the echo signal can be reciprocable, the two feeding connection points 2111 originally used for connecting to the excitation signal are used for outputting the echo signal, and the other feeding connection point 2111 originally used for outputting the echo signal is used for connecting to the excitation signal, wherein the positional relationship between the three feeding connection points 2111 is unchanged.

Corresponding to the homonymous phase-inversion microwave detection module illustrated in fig. 3B, the radiation element 21 is implemented to simultaneously access the excitation signal at two feeding connection points 2111 of the radiation element 21, which are offset from the physical central point of the radiation element 21, and simultaneously output the echo signal at two other feeding connection points 2111 of the radiation element 21, which are offset from the physical central point of the radiation element 21, wherein the two feeding connection points 2111 for accessing the excitation signal are arranged in a positional relationship such that a midline of a connecting line of the two feeding connection points 2111 passes through the physical central point of the radiation element 21, a midpoint of the two feeding connection points 2111 for accessing the excitation signal is accessed corresponding to the electrical feeding point 211 for accessing the excitation signal, and wherein a positional relationship of the two other feeding connection points 2111 for outputting the echo signal is arranged such that a midline of a connecting line of the two feeding connection points 2111 passes through the radiation element 2111 The physical center point of the element 21 corresponds to the middle point of the two feeding connection points 2111 taken by the electrical feeding point 211 outputting the echo signal, wherein based on the position relationship that the physical center point of the radiating element 21 is located on the connection line of the two electrical feeding points 211 and located between the two electrical feeding points 211 on the connection line of the two electrical feeding points 211, the position relationship of the four feeding connection points 2111 satisfies: the center line of the connecting line of the two feeding connection points 2111 for receiving the excitation signal passes through the midpoint of the connecting line of the other two feeding connection points 2111 for outputting the echo signal.

Referring further to fig. 4A and 4B of the drawings of the present application, two feeding structures of the receiving and transmitting same-element reverse-phase type microwave detecting module corresponding to the embodiment illustrated in fig. 2 are illustrated, and in the two feeding structures of the receiving and transmitting same-element reverse-phase type microwave detecting module according to this embodiment of the present invention, corresponding to the foregoing description, in a state where the radiating element 21 is fed with the excitation signal by accessing the physical feeding structure corresponding to one of the electrical feeding points 211, the radiating element 21 is disposed at the other pole of the zero potential line accessing the excitation signal, and the zero potential lines of the electrical feeding point 211 and the radiating element 21 of the radiating element 21 form a closed loop for the excitation signal.

Specifically, corresponding to fig. 4A, the radiation element 21 is electrically connected to the signal terminal 33 of the feed source 30 through one of the feed connection points 2111, wherein in a state where the feed source 30 is electrically connected to the positive electrode and the ground electrode of the corresponding power source through the positive electrode connection terminal 31 and the ground electrode connection terminal 32, respectively, the feed source 30 is disposed between the positive electrode connection terminal 31 and the signal terminal 33 to generate the excitation signal, and the positive electrode of the excitation signal corresponds to the positive electrode connection terminal 31 of the feed source 30 electrically connected to the positive electrode of the corresponding power source, wherein the radiation element 21 is electrically connected to the signal terminal 33 of the feed source 30 through one of the feed connection points 2111 to the ground electrode of the excitation signal and to the positive electrode of the corresponding power source through the zero potential line of the radiation element 21 to the positive electrode of the corresponding power source to access the excitation signal, so as to form a closed loop to the excitation signal.

Further, in the feeding structure of the receiving and transmitting same-element reverse-phase type microwave detecting module according to the embodiment of the present invention, in the state that the feeding source 30 is electrically connected to the positive electrode of the corresponding power source and the ground electrode at the positive electrode connecting end 31 and the ground electrode connecting end 32, respectively, and is powered, the reference ground 10 is electrically connected to the positive electrode of the corresponding power source, the radiating element 21 is electrically connected to the positive electrode of the corresponding power source at the zero potential line in the state of being electrically connected to the reference ground 10, and is connected to the positive electrode of the excitation signal, and specifically, the physical center point of the radiating element 21 forms the electrical connection relationship between the zero potential line and the reference ground 10 through a metallized via structure and a process.

Corresponding to fig. 4B, said radiating element 21 is electrically connected to said signal terminal 33 of said feed source 30 by one of said feed connection points 2111, wherein in a state where said feed source 30 is electrically connected to the positive electrode and the ground electrode of the corresponding power source respectively at said positive electrode connection terminal 31 and said ground electrode connection terminal 32, said feed source 30 is disposed between said ground electrode connection terminal 32 and said signal terminal 33 to generate said excitation signal, the positive electrode of said excitation signal corresponds to said signal terminal of said feed source 30, the ground electrode of said excitation signal corresponds to said ground electrode connection terminal 32 of said feed source 30 electrically connected to the ground electrode of the corresponding power source, wherein said radiating element 21 is electrically connected to said signal terminal 33 of said feed source 30 by one of said feed connection points 2111 to access the positive electrode of said excitation signal, and to said ground electrode connection terminal 32 of said feed source 30 by a zero potential line of said radiating element 21, and correspondingly, the ground pole is electrically connected with the ground pole of the corresponding power supply and is accessed into the excitation signal, so that a closed loop circuit of the excitation signal is formed.

Further, in the feeding structure of the receiving and transmitting same-element reverse-phase type microwave detecting module according to the embodiment of the present invention, in the state that the feeding source 30 is electrically connected to the positive electrode of the corresponding power source and the ground electrode at the positive electrode connecting end 31 and the ground electrode connecting end 32, respectively, and is powered, the reference ground 10 is electrically connected to the ground electrode of the corresponding power source, the radiating element 21 is electrically connected to the ground electrode of the corresponding power source at the zero potential line in the state of being electrically connected to the reference ground 10, and is connected to the ground electrode of the excitation signal, and specifically, the physical central point of the radiating element 21 forms the electrical connection relationship between the zero potential line and the reference ground 10 through a metallized via structure and a process.

Referring further to fig. 5A and 5B of the drawings accompanying the present disclosure, in the state of the point feeding (probe feeding) structure corresponding to the electrical feeding point 211, based on the shape setting of the radiating element 21, the receiving and transmitting element inverse type microwave detecting modules corresponding to the different modified embodiments of the embodiment illustrated in fig. 2 are respectively illustrated.

Corresponding to fig. 5A, in this variant embodiment of the invention, the radiating element 21 is configured as a circular sheet-like conductive layer, and the physical center point of the radiating element 21 is located at the center of the circular sheet-like conductive layer. Corresponding to fig. 5B, in this variant embodiment of the present invention, two sides of the radiation element 21 located on the zero potential line are concavely disposed in the direction toward the physical center point of the radiation element 21, so as to maintain the adaptation circumference of the radiation element 21 and ensure the gain of the receiving and transmitting unit inverse type microwave detection module, and at the same time, to facilitate the size reduction of the receiving and transmitting unit inverse type microwave detection module in a manner of reducing the size of the radiation element 21, so as to adapt to the current miniaturization trend.

It is understood that, in some embodiments of the present invention, the radiating element 21 may also be implemented as a sheet-shaped conductive layer with other symmetrical shapes, such as an oval shape, and the shape is chamfered at four corners of the rectangle on the basis of the rectangle, which is not limited by the present invention.

Referring further to fig. 6A to 6D of the drawings accompanying the present disclosure, on the basis that the number of the radiating elements 21 is one, based on the feeding structure corresponding to the electrical feeding point 211, the receiving-transmitting identical-element inverse-phase microwave detecting modules corresponding to different modified embodiments of the embodiment illustrated in fig. 2 are respectively illustrated.

Corresponding to fig. 6A, in this modified embodiment of the present invention, the radiation element 21 is configured to access the excitation signal and output the echo signal by a microstrip feeding structure, specifically, the radiation element 21 is accessed to the excitation signal by one microstrip feeding line 212 and outputs the echo signal by another microstrip feeding line 212, a point electrically connected to the microstrip feeding line 212 on the radiation element 21 is taken as the corresponding electrical feeding point 211, and based on a position relationship that a physical center point of the radiation element 21 is located on a connection line of the two electrical feeding points 211 and is located between the two electrical feeding points 211 on a connection line of the two electrical feeding points 211, the radiation element 21 and the two microstrip feeding lines 212 are configured to satisfy: the connection line of the two points of the radiation element 21 electrically connected to the two microstrip feed lines 212 passes through the physical center point of the radiation element 21.

Therefore, in order to adjust the position of the respective electrical feeding point 211 to meet the respective impedance matching and/or to adjust the amplitude requirement of the echo signal, the radiating element 21 allows to adjust the position of the respective electrical feeding point 211 in a manner that the microstrip feeding line 212 is hollowed out to correspond to a direction towards the physical center point of the radiating element 21 in order to lengthen the microstrip feeding line 212.

Corresponding to fig. 6B, in this variant embodiment of the present invention, the radiating element 21 is combined to access the excitation signal and output the echo signal respectively in a point-feed (probe-feed) structure and a microstrip-feed structure, such as accessing the excitation signal at one of the feed connection points 2111 in a point-feed (probe-feed) structure and outputting the echo signal via one of the microstrip-feed lines 212 in a microstrip-feed structure; or the excitation signal is accessed through one microstrip feed line 212 by a microstrip feed structure and the echo signal is output at one feed connection point 2111 by a point feed (probe feed) structure, which is not limited by the present invention.

Corresponding to fig. 6C, in this variant embodiment of the present invention, the radiating element 21 is configured to access the excitation signal and output the echo signal through an edge feeding structure, specifically, the radiating element 21 accesses the excitation signal through one of the edge feeding lines 213 and outputs the echo signal through the other of the edge feeding lines 213, wherein the edge feeding line 213 is a microstrip line adjacent to and parallel to the straight edge of the radiating element 21, that is, when the radiating element 21 is configured to access the excitation signal and output the echo signal through an edge feeding structure, the corresponding edge of the radiating element 21 is limited to a straight edge, the middle point of the edge feeding line 213 configured as a microstrip line is taken as the corresponding electrical feeding point 211, and based on the position relationship that the physical central point of the radiating element 21 is located on the connection line of the two electrical feeding points 211 and the connection line is located between the two electrical feeding points 211 on the connection line of the two electrical feeding points 211, the radiating element 21 and the two side feeder lines 213 are set to satisfy: the connection line between the middle point of one of the edge feed lines 213 and the middle point of the other edge feed line 213 passes through the physical center point of the radiating element 21.

It is worth mentioning that in a state that the radiation element 21 is configured to access the excitation signal or output the echo signal in a side feed structure, an electrically equivalent feed point of the radiation element 21 is electrically equivalent to a midpoint of the side feed line 213 configured as a microstrip line, that is, an electrical connection relationship and a position description of the electrical feed point 211 are defined by an electrical connection relationship of the side feed line 213 and a midpoint position of the side feed line 213, and a specific position where the side feed line 213 accesses the excitation signal and outputs the echo signal is not defined and does not affect the definition of the position of the electrical feed point 211, so that a circuit design of the corresponding transceiver module is flexible and can be adapted to different layout requirements.

Corresponding to fig. 6D, in this variant embodiment of the present invention, the radiating element 21 is combined to respectively access the excitation signal and output the echo signal in a point-fed (probe-fed) structure and an edge-fed structure, such as accessing the excitation signal at one of the feeding connection points 2111 in a point-fed (probe-fed) structure and outputting the echo signal via one of the edge-fed lines 213 in an edge-fed structure; or the side feed structure is used to access the excitation signal through one of the side feed lines 213 and the point feed (probe feed) structure is used to output the echo signal at one of the feed connection points 2111, which is not limited by the present invention.

It is understood that, in some embodiments of the present invention, the radiation element 21 is combined to respectively access the excitation signal and output the echo signal in a microstrip feed structure and an edge feed structure, such as accessing the excitation signal in a microstrip feed structure through a microstrip feed line 212 and outputting the echo signal in an edge feed structure through a side feed line 213; or the excitation signal is accessed through the side feeder 213 by the side feeding structure and the echo signal is output through the microstrip feeder 212 by the microstrip feeding structure, which is not limited by the present invention.

Referring further to fig. 7A to 9G of the drawings of the present disclosure, the feeding structure corresponding to the electrical feeding point 211 and the number of the radiation elements 21 are set, and the receiving and transmitting homonymous inverse type microwave detection modules of different embodiments are respectively illustrated.

Specifically, corresponding to fig. 7A to 7D, the number of the radiation elements 21 of the send-receive homologous element inversion type microwave detecting module is at least two, wherein the radiation elements 21 are adjacently disposed in a state where the zero potential lines coincide.

Further, corresponding to fig. 7A, the number of the radiation elements 21 is two, wherein the direction from the electrical feeding point 211 corresponding to the coupling of the excitation signal to the physical center point of the radiation element 21 is the polarization direction of the radiation element 21, when two of the radiation elements 21 are adjacently disposed in the state where the zero potential lines are overlapped, when two of the radiation elements 21 are coupled to the excitation signal by the electrical feeding point 211 disposed on the same side of the zero potential line, two of the radiation elements 21 have the same polarization direction, so as to increase the gain while maintaining the plane beam angle of the receiving and transmitting identical-phase inversion type microwave detecting module in the polarization direction, that is, when two of the radiation elements 21 are adjacently disposed in the state where the zero potential lines are overlapped and the polarization direction is the same, the plane beam angle of the receiving and transmitting identical-phase inversion type microwave detecting module in the polarization direction can be maintained and simultaneously increase the plane beam angle of the identical-phase inversion type microwave detecting module in the polarization direction And a wave detection module.

Further, when the two radiation elements 21 are adjacently disposed in a state where the zero potential lines are overlapped, and when the two radiation elements 21 are disposed at the electrical feeding points 211 on different sides of the zero potential lines and the excitation signal is inputted, the two radiation elements 21 have opposite polarization directions, the plane beam angle of the corresponding transceiver module in the polarization direction can be expanded to adapt to the corresponding detection requirement, that is, when the two radiation elements 21 are adjacently disposed in a state where the zero potential lines are overlapped and in a state where the polarization direction is opposite, the plane beam angle of the transceiver module in the polarization direction can be expanded.

Specifically, in the transceiver module with inverted-phase microwave detection in the embodiment corresponding to fig. 7A, the electrical feeding point 211 is disposed in a point feeding structure, and specifically, the electrical feeding point is respectively corresponding to each of the radiating elements 21, and the excitation signal is input through one feeding connection point 2111 and the echo signal is output through one feeding connection point 2111.

Corresponding to fig. 7B to 7D, in which each of the electrical feeding points 211 of each of the radiation elements 21 on the same side of the zero potential line is electrically connected, the direction from the electrical feeding point 211 corresponding to the excitation signal to the physical central point of the radiation element 21 is taken as the polarization direction of the radiation element 21, and each of the radiation elements 21 is adjacently disposed in a state where the zero potential lines coincide with each other corresponding to the same polarization direction, so as to increase the gain of the transceiving identical-element reverse-phase type microwave detection module while maintaining the plane beam angle of the transceiving identical-element reverse-phase type microwave detection module in the polarization direction, thereby facilitating to increase the detection sensitivity of the transceiving identical-element reverse-phase type microwave detection module.

Specifically, corresponding to fig. 7B and 7C, the number of the radiation elements 21 is two, that is, two radiation elements 21 are adjacently disposed in the same polarization direction in a state where the zero potential lines are overlapped, so that the transceiving homonymous phase type microwave detection module has higher gain and smaller volume compared with the existing microwave detection module designed separately for transceiving under the limitation of the same number of radiation elements 21.

Corresponding to fig. 7B, each of the radiation elements 21 is configured to access the excitation signal and output the echo signal in a microstrip feed structure, specifically, each of the radiation elements 21 is respectively accessed to the excitation signal through one of the microstrip feed lines 212 and outputs the echo signal through the other microstrip feed line 212, the microstrip feed line 212 accessed to the excitation signal correspondingly of each of the radiation elements 21 is electrically connected, and the microstrip feed line 212 outputting the echo signal correspondingly of each of the radiation elements 21 is electrically connected, so that a state in which the two radiation elements 21 are adjacently disposed in the same polarization direction is formed in a state in which the zero potential lines of the two radiation elements 21 are overlapped.

Corresponding to fig. 7C, each of the radiating elements 21 is configured to access the excitation signal and output the echo signal in a side feeding structure, specifically, each of the radiating elements 21 respectively accesses the excitation signal through one of the side feeding lines 213 and outputs the echo signal through the other side feeding line 213, the side feeding lines 213 of each of the radiating elements 21 correspondingly accessing the excitation signal are electrically connected, and the side feeding lines 213 of each of the radiating elements 21 correspondingly outputting the echo signal are electrically connected, so that a state in which the two radiating elements 21 are adjacently disposed in the same polarization direction is formed in a state in which the zero potential lines of the two radiating elements 21 are overlapped.

Corresponding to fig. 7D, the number of the radiation elements 21 is five, wherein each of the radiation elements 21 is configured to access the excitation signal and output the echo signal in a microstrip feeding structure, specifically, each of the radiation elements 21 is respectively accessed to the excitation signal through one of the microstrip feeding lines 212 and outputs the echo signal through the other microstrip feeding line 212, wherein the microstrip feeding line 212, correspondingly accessed to the excitation signal, of each of the radiation elements 21 is electrically connected, and the microstrip feeding line 212, correspondingly outputting the echo signal, of each of the radiation elements 21 is electrically connected, so as to facilitate simplification of the feeding line design of the radiation source 20, and form a state in which two of the radiation elements 21 are adjacently disposed in the same polarization direction in a state in which the zero potential lines of two of the radiation elements 21 coincide.

It should be noted that, the microstrip feed line 212, which is correspondingly connected to the excitation signal, of each radiating element 21 is electrically connected, in the state of being electrically connected to the microstrip feed line 212 of each of the radiating elements 21, which outputs the echo signal, the microstrip feed line 212 of each of the radiating elements 21, which is connected to the excitation signal, is preferably arranged with equal length, and the microstrip feed line 212 of each of the radiating elements 21 corresponding to the output of the echo signal are preferably arranged with equal length, in this way, it is beneficial to realize that the excitation signal accessed by each of the radiating elements 21 in phase, and the echo signal outputted in phase, therefore, the stability of the receiving and transmitting homonymy reverse-phase type microwave detection module is guaranteed and the accuracy of the receiving and transmitting homonymy reverse-phase type microwave detection module is improved while the phase reversal of the excitation signal and the echo signal is realized.

Corresponding to fig. 8A to 8C, the number of the radiation elements 21 of the transceiving identical element reverse-phase type microwave detection module is two, wherein two of the radiation elements 21 are adjacently disposed in a state that two of the zero potential lines are perpendicular to each other, that is, two of the radiation elements 21 have polarization directions in an orthogonal state, so that the transceiving identical element reverse-phase type microwave detection module has higher gain and smaller volume compared with the existing microwave detection module of transceiving separate design under the same number of radiation elements 21.

Corresponding to fig. 8A, each of the radiation elements 21 is configured to access the excitation signal and output the echo signal in a microstrip feed structure, specifically, each of the radiation elements 21 is respectively accessed to the excitation signal through one of the microstrip feed lines 212 and outputs the echo signal through the other microstrip feed line 212, the microstrip feed line 212 accessed to the excitation signal correspondingly of each of the radiation elements 21 is electrically connected, and the microstrip feed line 212 output the echo signal correspondingly of each of the radiation elements 21 is electrically connected, so that a state in which two of the radiation elements 21 are adjacently disposed in orthogonal polarization directions is formed in a state in which the zero potential lines of two of the radiation elements 21 are perpendicular.

Corresponding to fig. 8B, each of the radiating elements 21 is configured to access the excitation signal and output the echo signal in a side feeding structure, specifically, each of the radiating elements 21 respectively accesses the excitation signal through one of the side feeding lines 213 and outputs the echo signal through the other side feeding line 213, the side feeding lines 213 of each of the radiating elements 21 correspondingly accessing the excitation signal are electrically connected, and the side feeding lines 213 of each of the radiating elements 21 correspondingly outputting the echo signal are electrically connected, so as to form a state in which two of the radiating elements 21 are adjacently disposed in orthogonal polarization directions in a state in which the zero potential lines of the two radiating elements 21 are perpendicular.

Corresponding to fig. 8C, each of the radiation elements 21 is configured to switch in the excitation signal and output the echo signal in a point feeding structure, and specifically, each of the radiation elements 21 switches in the excitation signal through one of the feeding connection points 2111 and outputs the echo signal through the other of the electrical feeding points 2111, so as to form a state in which the two radiation elements 21 are adjacently disposed in orthogonal polarization directions in a state in which the zero potential lines of the two radiation elements 21 are perpendicular.

Corresponding to fig. 9A to 9G, the number of the radiation elements 21 of the transceiver module is at least two, wherein each of the radiation elements 21 is adjacently disposed in a state that the connection lines of the two electrical feeding points 211 of each of the radiation elements 21 are overlapped, that is, each of the radiation elements 21 is adjacently disposed in a state that the electrical feeding points 211 are located on the same straight line.

Corresponding to fig. 9A, the number of the radiation elements 21 is two, where, with the direction from the electrical feeding point 211 corresponding to the excitation signal to the physical central point of the radiation element 21 as the polarization direction of the radiation element 21, when the two radiation elements 21 are adjacently disposed in a state where the connecting lines of the electrical feeding points 211 are overlapped, when the two radiation elements 21 are disposed in the same polarization direction, the plane beam angle of the transceiver module in the connecting line direction of the electrical feeding point 211 can be reduced and the gain of the transceiver module in the phase inversion can be simultaneously increased, that is, when the two radiation elements 21 are adjacently disposed in a state where the connecting lines of the electrical feeding points 211 are overlapped and the polarization direction is the same, the plane beam angle of the transceiver module in the connecting line direction of the electrical feeding points 211 can be reduced and adapted to the corresponding detection direction The gain of the receiving and transmitting homonymous phase type microwave detection module is required and improved at the same time.

Further, when the two radiation elements 21 are adjacently disposed in a state where the connection lines of the electrical feeding points 211 are overlapped, and when the two radiation elements 21 are disposed to have opposite polarization directions, the plane beam angle of the corresponding transceiver module in the connection line direction of the electrical feeding points 211 can be expanded to adapt to the corresponding detection requirement, that is, when the two radiation elements 21 are adjacently disposed in a state where the connection lines of the electrical feeding points 211 are overlapped and in a state where the polarization directions are opposite, the plane beam angle of the transceiver module in the connection line direction of the electrical feeding points 211 can be expanded.

Specifically, in the transceiver module with inverted-phase microwave detection in fig. 9A, the electrical feeding point 211 is disposed in a point feeding structure, and specifically, the electrical feeding point is respectively corresponding to each of the radiating elements 21, and the excitation signal is input through one feeding connection point 2111 and the echo signal is output through one feeding connection point 2111.

Corresponding to fig. 9B to 9F, in a state where the connecting lines of the two electrical feeding points 211 of each radiating element 21 are overlapped, two adjacent electrical feeding points 211 on two adjacent radiating elements 21 are electrically connected, namely, two adjacent electric feeding points 211 of two adjacent radiating elements 21 located at different radiating elements 21 are electrically connected, are adjacently disposed in a state where the electrical feeding points 211 are located on the same straight line in the same polarization direction corresponding to each of the radiating elements 21, thus, the gain of the receiving and transmitting homonymous phase-inversion type microwave detecting module can be increased, and simultaneously the plane beam angle of the receiving and transmitting homonymous phase-inversion type microwave detecting module in the connection direction of each electrical feeding point 211 can be reduced, and under the restriction of the same number of the radiation elements 21, the receiving and transmitting homonymy reverse-phase type microwave detection module has a smaller volume compared with the existing microwave detection module with the receiving and transmitting separation design.

In particular, two of said electrical feeding points 211 adjacent to each other of said radiating elements 21 are arranged in a microstrip feeding structure, corresponding to the state that two adjacent electric feeding points 211 on two adjacent radiating elements 21 are electrically connected, two adjacent radiating elements 21 are electrically connected by one microstrip feeding line 212, and the point electrically connected with the microstrip feeding line 212 on each radiating element 21 equivalently forms the electric feeding point 211, in this way, in a state where the connecting lines of the two electrical feeding points 211 of each radiating element 21 are overlapped, when the physical feeding structures corresponding to the two electrical feeding points 211 at the two ends of the connection line of each electrical feeding point 211 are respectively connected to the excitation signal and output the echo signal, the electrical feeding point 211 on the same side of each radiating element 21 is correspondingly connected to the excitation signal or outputs the echo signal.

That is, in a state where two adjacent radiation elements 21 are electrically connected by one microstrip feed line 212, the microstrip feed line 212 mixedly transmits the excitation signal and the echo signal.

Specifically, corresponding to fig. 9B to 9D, the number of the radiation elements 21 of the send-receive homoelement anti-phase type microwave detection module is two, wherein, corresponding to fig. 9B, two of the electrical feeding points 211 at both ends of a connection line of each of the electrical feeding points 211 are implemented in a point feeding structure, specifically, as one of the feeding connection points 2111; corresponding to fig. 9C, two of the electrical feeding points 211 at both ends of the connection line of each of the electrical feeding points 211 are implemented as side feeding structures to respectively input the excitation signal and output the echo signal with a side feeding line 213 adjacent to and parallel to the straight side of the corresponding radiating element 21; corresponding to fig. 9D, two of the electrical feeding points 211 at two ends of the connecting line of each of the electrical feeding points 211 are implemented as microstrip feeding structures to respectively access the excitation signal and output the echo signal by one of the microstrip feeding lines 212 electrically connected to the corresponding radiating element 21.

Corresponding to fig. 9E and 9F, the number of the radiation elements 21 of the transceiver module is four, wherein corresponding to fig. 9E, two electrical feeding points 211 at two ends of a connecting line of each electrical feeding point 211 are implemented as microstrip feeding structures to respectively access the excitation signal and output the echo signal by one microstrip feeding line 212 electrically connected to the corresponding radiation element 21; corresponding to fig. 9F, two of the electrical feeding points 211 at both ends of the connection line of each of the electrical feeding points 211 are implemented in a side feeding structure to respectively input the excitation signal and output the echo signal with a side feeding line 213 adjacent to and parallel to the straight side of the corresponding radiating element 21.

Corresponding to fig. 9G, in a state where the connecting lines of the two electrical feeding points 211 of each radiating element 21 are overlapped, the two electrical feeding points 211 of each radiating element 21 are implemented as a microstrip feeding structure to respectively access the excitation signal and output the echo signal by one microstrip feeding line 212 electrically connected to the radiating element 21, wherein in the connecting line direction of the two electrical feeding points 211 of each radiating element 21, the electrical feeding points 211 on the same side of each radiating element 21 are electrically connected, specifically, the microstrip feeding line 212 corresponding to the excitation signal of each radiating element 21 is electrically connected to the microstrip feeding line 212 corresponding to the echo signal of each radiating element 21, so as to form a state where each radiating element 21 is adjacently disposed in the same polarization direction with the electrical feeding points 211 in the same straight line, because a connection structure that two adjacent electric feed points 211 on two adjacent radiation elements 21 are electrically connected is avoided, mixed transmission of the excitation signal and the echo signal in the microstrip feed line 212 can be avoided, and the anti-interference performance of the receiving and transmitting same-element phase-reversal type microwave detection module can be further improved.

It should be noted that, the microstrip feed line 212, which is correspondingly connected to the excitation signal, of each radiating element 21 is electrically connected, in the state of being electrically connected to the microstrip feed line 212 of each of the radiating elements 21, which outputs the echo signal, the microstrip feed line 212 of each of the radiating elements 21, which is connected to the excitation signal, is preferably arranged with equal length, and the microstrip feed line 212 of each of the radiating elements 21 corresponding to the output of the echo signal are preferably arranged with equal length, in this way, it is beneficial to realize that the excitation signal accessed by each of the radiating elements 21 in phase, and the echo signal outputted in phase, therefore, the stability of the receiving and transmitting homonymy reverse-phase type microwave detection module is guaranteed and the accuracy of the receiving and transmitting homonymy reverse-phase type microwave detection module is improved while the phase reversal of the excitation signal and the echo signal is realized.

It can be understood that, based on the principle of reciprocity between transmission and reception, in some embodiments of the present invention, the electrical feeding point 211 corresponding to outputting the echo signal is simultaneously configured to access the excitation signal satisfying the corresponding phase requirement, that is, in the above description of the present invention, the description is open that each of the radiating elements 21 respectively accesses the excitation signal and outputs the echo signal in the physical feeding structure corresponding to two electrical feeding points 211, and in the state that the radiating element 21 accesses the excitation signal in the physical feeding structure corresponding to one of the electrical feeding points 211 and outputs the echo signal in the physical feeding structure corresponding to the other electrical feeding point, the physical feeding structure corresponding to the electrical feeding point 211 corresponding to accessing the excitation signal can be simultaneously configured to output the echo signal, and/or the physical feed structure corresponding to the electrical feed point 211 outputting the echo signal can be used to access the excitation signal at the same time, which is not limited by the present invention.

That is to say, based on the principle of reciprocity between transmission and reception, the electrical feeding point 211 correspondingly accessing the excitation signal and the electrical feeding point 211 correspondingly transmitting the echo signal can be reciprocity, and the electrical feeding point 211 correspondingly transmitting the echo signal on the radiation element 21 allows simultaneous corresponding access to the excitation signal, that is, on the basis that one of the electrical feeding points 211 correspondingly accesses the excitation signal and the other electrical feeding point 211 correspondingly transmits the echo signal, the two electrical feeding points 211 of the radiation element 211 are allowed to be set to simultaneously correspondingly access to the excitation signal or transmit the echo signal, so as to form reverse feeding to the radiation element 21 to improve the radiation efficiency or the reception efficiency of the radiation element, and correspondingly enhance the detection sensitivity of the equivalent reverse phase type microwave detection module, for example, in a manner that the physical feeding structures corresponding to the two electrical feeding points 211 of the radiating element 21 are electrically connected by a phase shifting line, when the radiating element 21 is connected to the excitation signal in the physical feeding structure corresponding to one of the electrical feeding points 211, the excitation signal is shifted in phase by the phase shifting line and excites the radiating element in reverse phase in the physical feeding structure corresponding to the other electrical feeding point 211, thereby forming reverse feeding to the radiating element 21.

It is worth mentioning that, be adapted to the detection demand of different environment, the quantity and the mode of arrangement of radiation unit 21 are various in the above-mentioned embodiment of the utility model, it is right with the first opposite phase formula microwave detection module the corresponding quantity of radiation unit 21 and the description of the mode of arrangement are only as the example and not the restriction the utility model discloses, it is right based on the access of excitation signal with the first opposite phase formula setting of the output of echo signal, the utility model discloses a purpose has been realized completely and effectively, is not deviating from under the principle, the embodiment of the utility model can have any deformation or modification.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the terminology used in the description above is not necessarily meant to be the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims (10)

1. A receiving-transmitting homonymous phase-reversal microwave detection module, comprising:

a reference ground, wherein the reference ground is provided as a sheet-like conductive layer; and

two radiation elements, wherein each radiation element is configured as a sheet-shaped conductive layer and is separated from the reference ground in a state that the layers of the two sheet-shaped conductive layers tend to be parallel, each radiation element has an electric feed point correspondingly connected with an excitation signal and another electric feed point correspondingly outputting an echo signal, wherein the electric feed point is configured with one of a point feed structure, a microstrip feed structure and an edge feed structure and has a corresponding physical feed structure, and the state of the point feed structure is corresponding to the state of the electric feed point, when the radiation element is configured with a feed connection point which is deviated from the physical central point of the radiation element and is connected with the excitation signal or outputs the echo signal, the corresponding electric feed point equivalently takes the feed connection point, and when the radiation element is configured with two feed connection points which are deviated from the physical central point of the radiation element and are positioned on the radiation element When the connection points are connected into the excitation signal or the echo signal is output, the position relation of the two feeding connection points is set to meet the condition that the middle line of the connection line of the two feeding connection points passes through the physical central point of the radiation element, and the corresponding electrical feeding point is equivalent to the middle point of the connection line of the two feeding connection points; corresponding to the state that the electrical feed point is arranged in a microstrip feed structure, the radiation element is arranged to be accessed into the excitation signal or output the echo signal through a microstrip feed line electrically connected with the radiation element, and the corresponding electrical feed point is equivalent to a point on the radiation element, which is electrically connected with the microstrip feed line; the radiating element is arranged to switch in the excitation signal or output the echo signal via a feeder line corresponding to a state that the radiating element is arranged in a side-feed structure at the electrical feed point, wherein the side feeder is a microstrip line adjacent to and parallel to the straight side of the radiating element, the corresponding electrical feed point is equivalent to the midpoint of the side feeder, wherein the physical center point of the radiating element is located on the connecting line of the two electrical feeding points and between the two electrical feeding points on the connecting line of the two electrical feeding points, in a state where the radiating element is excited to feed by being connected to the excitation signal, the echo signal outputted from the radiating element can be inverted, wherein a straight line which passes through the physical center point of each radiating element and is perpendicular to the connecting line of the two electrical feeding points is taken as a zero potential line of the radiating element, wherein two of said radiating elements are adjacently disposed in a state where two of said zero potential lines are perpendicular to each other.

2. The transceiving homonymous phase type microwave detecting module according to claim 1, wherein each of the radiating elements is connected to the excitation signal through a microstrip feeder and outputs the echo signal through another microstrip feeder, a point electrically connected to the microstrip feeder on the radiating element is taken as the corresponding electrical feeding point, the microstrip feeders correspondingly connected to the excitation signal of the two radiating elements are electrically connected, and the microstrip feeders correspondingly outputting the echo signals of the two radiating elements are electrically connected.

3. The transceiver module of claim 2, wherein the microstrip feed lines of the two radiating elements corresponding to the excitation signal are arranged with equal length, and the microstrip feed lines of the two radiating elements corresponding to the output echo signal are arranged with equal length.

4. The transceiver homonymous antiphase microwave detection module according to claim 1, wherein each of the radiating elements is respectively connected to the excitation signal via a feeding connection point and outputs the echo signal via another electrical feeding point, and the feeding connection point is taken as the corresponding electrical feeding point.

5. The transceiver homonymous phase type microwave detection module according to claim 1, wherein each of the radiation elements is respectively connected to the excitation signal through one side feeder and outputs the echo signal through the other side feeder, the side feeder is a microstrip line adjacent to and parallel to a straight side of the radiation element, a midpoint of the side feeder set as the microstrip line is taken as the corresponding electrical feed point, the side feeders of the two radiation elements, which are correspondingly connected to the excitation signal, are electrically connected, and the side feeders of the two radiation elements, which are correspondingly connected to the echo signal, are electrically connected.

6. The transceive homonymous microwave detecting module according to any one of claims 1 to 5, wherein the radiating element is configured as a rectangular sheet-like conductive layer, and a connection line of two electrical feeding points of the radiating element is perpendicular to two opposite sides of the rectangular radiating element.

7. The transceive isopipe inverting type microwave detecting module according to claim 6, wherein both sides of said radiating element on said zero potential line are concavely disposed in a direction toward a physical center point of said radiating element.

8. The transceive homonymous reverse-phase microwave detection module according to any one of claims 2 to 4, wherein the radiating element is provided as a circular sheet-like conductive layer.

9. The transceiver module according to any one of claims 1 to 5, wherein in a state where each of the radiating elements is connected to the excitation signal through a physical feeding structure corresponding to one of the electrical feeding points and outputs the echo signal through a physical feeding structure corresponding to another of the electrical feeding points, the physical feeding structure corresponding to the electrical feeding point outputting the echo signal of each of the radiating elements is further connected to the excitation signal in an inverted manner, so that an inverted excitation feed is formed for the radiating elements through the two electrical feeding points to improve radiation efficiency of the radiating elements.

10. The transceiver module of claim 9, wherein the physical feeding structure of the radiating element corresponding to the output of the echo signal is electrically connected to the physical feeding structure corresponding to the access of the excitation signal to form a phasing line, so that when the radiating element is accessed to the excitation signal at one of the electrical feeding points, the excitation signal is phase-shifted by the phasing line to excite the radiating element in an opposite phase at the other electrical feeding point, thereby forming an opposite-phase feeding to the radiating element.

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