CN111129756A - Antenna and detection method thereof - Google Patents
Antenna and detection method thereof Download PDFInfo
- Publication number
- CN111129756A CN111129756A CN202010028129.9A CN202010028129A CN111129756A CN 111129756 A CN111129756 A CN 111129756A CN 202010028129 A CN202010028129 A CN 202010028129A CN 111129756 A CN111129756 A CN 111129756A
- Authority
- CN
- China
- Prior art keywords
- radiation source
- antenna
- ground
- plane
- parameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 167
- 230000005855 radiation Effects 0.000 claims abstract description 310
- 230000010287 polarization Effects 0.000 claims description 85
- 238000010168 coupling process Methods 0.000 claims description 25
- 238000005859 coupling reaction Methods 0.000 claims description 25
- 230000008878 coupling Effects 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 19
- 238000009826 distribution Methods 0.000 description 13
- 230000005284 excitation Effects 0.000 description 8
- 230000003993 interaction Effects 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005684 electric field Effects 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses an antenna and a detection method thereof, wherein the antenna comprises a reference ground and a radiation source, the radiation source is maintained at one side of the reference ground at intervals, a radiation gap is formed between the radiation source and the reference ground, a first preset horizontal distance exists between a first side surface of the reference ground and a third side surface of the radiation source, a second preset horizontal distance exists between a second side surface of the reference ground and a fourth side surface of the radiation source, and a detection microwave generated by the antenna can form a long and narrow detection surface, so that the antenna is suitable for detecting the activity condition of a user in a long and narrow target area.
Description
Technical Field
The invention relates to the field of microwave detection, in particular to an antenna and a detection method thereof.
Background
In recent years, antennas have been applied to smart electrical devices, which are excited to generate detection microwaves having an initial polarization direction, which detect the activity of a user in a target area in such a manner that a detection plane covers the target area, so that the smart electrical devices can adjust the operation state and the operation mode according to the activity state of the user to provide a user intelligent and humanized service. In particular, referring to fig. 1 to 2C, the antenna 100 of the prior art includes a reference ground 10P and a radiation source 20P, wherein the radiation source 20P is spaced apart from and held on one side of the reference ground 10P, and a radiation gap 30P is formed between the reference ground 10P and the radiation source 20P. The radiation source 20P has a feed point 201P, the feed point 201P allowing access to a microwave excitation electrical signal. In the prior art, there are relatively long distances between four side edges of the radiation source 20P and four side edges corresponding to the ground reference 10P, when a microwave excitation signal is connected to the radiation source 20P from the feeding point 201P, the radiation source 20P and the ground reference 10P interact with each other, the antenna 100P radiates the detection microwave outwards, the detection microwave forms a detection plane 101P in the target area, and the length of the detection plane 101P is close to the width of the detection plane 101P, as shown in fig. 2A.
However, the conventional antenna 100P has many problems in the actual use process, and particularly when the antenna 100P is applied to a narrow space, the interference resistance of the antenna 100 is reduced, and it is difficult to accurately detect the activity state of a user in the narrow space.
For example, referring to fig. 2B, when the antenna 100P is applied to detect the activity state of a user in a long and narrow passageway, the operation state of the light fixture installed in the passageway is controlled according to the detection result. The antenna 100P emits the detection microwave having the circular detection surface 101P toward the inside of the passageway, and once the length or width of the detection surface 101P is greater than the width of the passageway, the portion of the detection surface 101P beyond the width of the passageway covers an adjacent non-target area, such as a next door room, and the detection microwave covered into the next door room is reflected by a user located in the next door room to form the reflected microwave. After the antenna 100P receives the detection microwave and the reflection microwave, the working state of the lamp in the aisle is controlled according to the activity state of the user in the next room, so that the lamp in the aisle cannot timely adjust the working state according to the activity state of the user in the aisle, and the use requirement of the user is difficult to meet.
In the conventional antenna 100P, in order to avoid the interference of the user in the adjacent non-target area when the conventional antenna 100P is used in a narrow space, the length and the width of the detection plane 101P formed by the detection microwaves generated by the antenna 100P can only be reduced at the same time, so that the length and the width of the detection plane 101P are smaller than or equal to the width of the aisle at the same time, as shown in fig. 2C. Although the anti-interference performance of the antenna 100P is improved in this way, the detection range of the antenna 100P is reduced, the coverage area of the detection microwave in the target area is reduced, and the antenna 100P can acquire the activity state of the user only when the user enters the area covered by the detection microwave, so that the antenna 100P is difficult to acquire the activity state of the user in time, and further cannot control the working condition of the lamp in time, and the adjustment of the working condition of the lamp is delayed, the sensitivity is reduced, and the use experience of the user is affected.
Disclosure of Invention
It is an object of the present invention to provide an antenna and a detection method thereof, wherein the antenna is adapted to detect an activity condition of a user within an elongated target area.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein the antenna is not easily interfered by users in a non-target area and has good anti-interference performance.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein a detection microwave generated by the antenna forms a long and narrow detection surface, so that the antenna is suitable for detecting the moving condition of a target object in a long and narrow target area.
An object of the present invention is to provide an antenna and a detection method thereof, wherein the antenna has a radiation source and a reference ground, wherein the radiation source and the reference ground are disposed at an interval, wherein the radiation source has a feeding point, wherein the feeding point is offset from a physical center point of the radiation source, wherein a direction of a connection line of the physical center point of the radiation source and the feeding point is taken as a length of the radiation source, such that when the radiation source is fed from the feeding point, current density distributions of the radiation source on both sides in a length direction are reversed, both ends of either one of both sides in a width direction of the radiation source can be coupled to each other, and the detection microwave is radiated in a radial direction of the connection line of the physical center point of the radiation source and the feeding point.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein the energy ratio of the radiation source of the antenna to the reference ground is decreased, and the energy ratio of the radiation source to the reference ground is increased, so that after the radiation source and the reference ground interact with each other, the radiation energy of the antenna in the radial direction of the line connecting the physical center point of the radiation source and the feeding point is increased to compress the detection surface in the length direction of the radiation source to narrow the detection surface, thereby forming the long and narrow detection surface.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein in the width direction of the radiation source, the side of the reference ground is close to the side of the radiation source, that is, the area of the reference ground in the width direction of the radiation source is reduced, so that the energy ratio of the radiation source to the reference ground coupling with each other is reduced, and the energy ratio of the radiation source to the radiation source itself coupling is enhanced.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein the detection antenna produced by the antenna forms the long and narrow detection plane when the distance between the ground reference side of the antenna and the side of the radiation source in the width direction of the radiation source is maintained within a predetermined range.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein the width of both sides of the reference ground of the antenna is aligned with the width of both sides of the radiation source in the width direction of the radiation source, and the detection microwave generated by the antenna can form a long and narrow detection surface after the interaction between the reference ground and the radiation source.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein the edges of the reference ground of the antenna are completely aligned in the width direction of the radiation source, and the detection microwave generated by the antenna can form the long and narrow detection surface after the reference ground and the radiation source interact with each other.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein the two sides of the radiation source in the width direction are concavely disposed, so that the current density distribution at two ends of any one side of the two sides of the radiation source in the width direction is enhanced, which is beneficial to further compressing the detection surface in the length direction of the radiation source to achieve the effect of narrowing the detection surface.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein the radiation source is concavely disposed on both sides in the width direction, so as to facilitate the reduction of the size of the radiation source in the length direction while ensuring the circumference of the radiation source, thereby ensuring the radiation gain of the miniaturized microwave detection device while reducing the size of the radiation source.
It is another object of the present invention to provide an antenna and a detection method thereof, wherein the radiation source is concavely disposed on both sides in the width direction, so as to facilitate reduction of the dimension of the radiation source in the length direction and to facilitate reduction of the dimension requirement for the reference ground in the length direction of the radiation source, while allowing reduction of the dimension of the reference ground in the length direction of the radiation source.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein the radiation source is concavely disposed on both sides in the width direction, wherein the current density distribution of the side of the radiation source in the width direction is allowed to be adjusted based on the design of the concave size of the side of the radiation source in the width direction, and the reference ground corresponding to the concave portion of the radiation source can be coupled to the side of the radiation source, i.e., the ratio of the coupling energy between the radiation source and the reference ground and the current density distribution and the electric field distribution of the radiation source are allowed to be adjusted based on the design of the concave size of the side of the radiation source in the length direction, thereby facilitating the adjustment of the electric field radiation intensity and angle of the antenna in the width direction of the radiation source.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein two sides of the radiation source in the width direction are concavely disposed, so that when the side of the reference ground is close to the side of the radiation source, such as when the side of the reference ground is close to be aligned with the side of the radiation source, in the width direction of the radiation source, the energy ratio of the radiation to be coupled from the reference ground is further reduced, and the energy ratio of the radiation to be coupled with the radiation source is further increased, thereby further narrowing the detection plane in the length direction of the radiation source, and forming a long and narrow detection plane in the width direction of the radiation source.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein the radiation source is concavely provided on both sides in the width direction, wherein the current density distribution of the side in the length direction of the radiation source is adjusted based on the design of the concave shape and size of the side in the length direction of the radiation source, while the reference ground corresponding to the concave portion of the radiation source can be coupled to the side of the radiation source, i.e., the ratio of the coupling energy between the radiation source and the reference ground and the current density distribution and electric field distribution of the radiation source allow the adjustment based on the design of the concave shape and size of the side in the length direction of the radiation source, the detection beam of the antenna allows the adjustment to the area and shape of different detection regions based on the design of the concave shape and size of the side in the length direction of the radiation source, thereby contributing to an improvement in the applicability of the antenna.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein the radiation source is grounded, and the impedance of the antenna is reduced, so that the quality factor (i.e., Q value) of the antenna is improved, thereby facilitating the improvement of the anti-interference performance of the antenna.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein a physical central point of the radiation source is grounded to reduce the impedance of the antenna, and at the same time, the current density distribution of the radiation source fed by the feeding point is maintained, thereby the radiation gain of the antenna is ensured.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein the size of the reference ground of the antenna is reduced compared to the size of the reference ground of the existing antenna, which is beneficial to reduce the overall volume of the antenna, and realize miniaturization of the antenna, so as to subsequently reduce the installation space of the antenna.
Another object of the present invention is to provide an antenna and a detection method thereof, wherein the material cost of the antenna is saved by reducing the ground reference of the antenna, thereby reducing the manufacturing cost of the antenna.
According to an aspect of the present invention, the present invention further provides an antenna, comprising:
a ground reference having a first plane of polarization, a first side, a second plane of polarization opposite the first plane of polarization, and a second side opposite the first side; and
a radiation source, wherein the radiation source has a feeding point which is offset from a physical center point of the radiation source, the radiation source has a third polarization plane, a fourth polarization plane opposite to the third polarization plane, a third side plane and a fourth side plane opposite to the third side plane, wherein the third polarization plane is a side plane of the radiation source in a direction of a line connecting the physical center point of the radiation source to the feeding point, the fourth polarization plane is a side plane of the radiation source in a direction of a line connecting the feeding point of the radiation source to the physical center point, the radiation source is held at a side of the reference ground at intervals in such a manner that the third polarization plane, the fourth polarization plane, the third side plane and the fourth side plane respectively correspond to the first polarization plane, the second polarization plane, the first side plane and the second side plane of the reference ground, and a radiation gap is formed between the radiation source and the reference ground, a first preset horizontal distance exists between the first side surface of the reference ground and the third side surface of the radiation source, a second preset horizontal distance exists between the second side surface of the reference ground and the fourth side surface of the radiation source, and a detection microwave generated by the antenna can form a long and narrow detection surface.
According to an embodiment of the invention, a first predetermined horizontal distance parameter between the first side of the reference ground and the third side of the radiation source is K, wherein the parameter K has a value range of: k is more than or equal to 0 and less than or equal to lambda/32.
According to an embodiment of the present invention, the second preset horizontal distance parameter between the second side of the ground reference and the fourth side of the radiation source is L, wherein the value range of the parameter L is: l is more than or equal to 0 and less than or equal to lambda/32.
According to an embodiment of the present invention, there is a third predetermined horizontal distance between the first polarization plane of the antenna with reference to ground and the third polarization plane of the radiation source, and the predetermined horizontal distance is M, and the range of the parameter M is: m is more than or equal to lambda/32.
According to an embodiment of the invention, there is a fourth predetermined horizontal distance between said second plane of polarization with reference to ground and said fourth plane of polarization of said radiation source, defining said predetermined horizontal distance parameter as N, wherein said parameter N ranges from: n is more than or equal to lambda/32.
According to an embodiment of the present invention, a length dimension parameter of the first polarization plane and the second polarization plane with reference to the ground is a, and a value range of the parameter a is: a is more than or equal to lambda/8.
According to an embodiment of the present invention, the length dimension parameter of the first side and the second side with reference to the ground is B, and the value range of the parameter B is: b is more than or equal to lambda/8.
According to one embodiment of the invention, the length dimension parameter of the third and fourth polarization surfaces of the radiation source is C, the value range of the parameter C being: c is more than or equal to lambda/8.
According to one embodiment of the invention, the length dimension parameter of the first and second sides of the radiation source is D, the parameter D ranging from: d is more than or equal to lambda/8.
According to an embodiment of the invention, wherein the radiation source further has a grounding point, wherein the radiation source is grounded to the grounding point.
According to an embodiment of the invention, the grounding point is located at a physical centre point of the radiation source.
According to an embodiment of the present invention, wherein the radiation source is grounded via a metallization hole formed by a metallization via process.
According to an embodiment of the invention, the third side and the fourth side of the radiation source are aligned with the first side and the second side of the reference ground, respectively, i.e. the values of the parameter K and the parameter L satisfy K-0 and L-0.
According to an embodiment of the invention, wherein the third side and the fourth side of the radiation source are arranged concavely, a portion of the first side corresponding to the third side of the radiation source and a portion of the second side corresponding to the fourth side of the radiation source, respectively, are also arranged concavely.
According to an embodiment of the invention, wherein the third side and the fourth side of the radiation source are concavely curved, and portions of the first side and the second side with respect to ground corresponding to the third side and the fourth side of the radiation source are also concavely curved.
According to another aspect of the present invention, the present invention further provides a method for detecting an antenna, the method comprising the steps of:
(a) generating a detection microwave toward a target area; and
(b) forming a long and narrow detection surface on the target area.
According to an embodiment of the invention, the detection method further comprises the steps of: the energy ratio of mutual coupling of the radiation source and the reference ground is reduced, and the energy ratio of self coupling of the radiation source is increased.
According to an embodiment of the invention, the detection method further comprises the steps of: a preset distance between the first side face maintaining a reference ground and a third side face of a radiation source is greater than or equal to 0 and less than or equal to lambda/32.
According to an embodiment of the invention, the detection method further comprises the steps of: the preset distance between the second side maintaining the reference ground and the fourth side of the radiation source is greater than or equal to 0 and less than or equal to lambda/32.
According to an embodiment of the invention, the detection method further comprises the steps of: maintaining a width of the detection surface that detects the microwaves close to a width of the target region.
Drawings
Fig. 1 is a perspective view of a conventional antenna.
Fig. 2A is a schematic view of a detection surface formed by a detection microwave generated by the antenna according to the related art.
Fig. 2B is a schematic diagram of an application of the conventional antenna.
Fig. 2C is a schematic diagram of an application of another conventional antenna.
Fig. 3 is a perspective view of an antenna according to a preferred embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of the antenna according to the above preferred embodiment of the present invention.
Fig. 5 is a schematic top view of the antenna according to the above preferred embodiment of the present invention.
Fig. 6 is a schematic diagram of the shape of the detection surface formed by the detection microwave generated by the antenna according to the above preferred embodiment of the present invention.
Fig. 7 is a schematic diagram of the application of the antenna according to the above preferred embodiment of the present invention.
Fig. 8 is a perspective view of an antenna according to another preferred embodiment of the present invention.
Fig. 9 is a schematic top view of the antenna according to the above preferred embodiment of the present invention.
Fig. 10 is a schematic view of the detection surface formed by the detection microwaves generated by the antenna according to the above preferred embodiment of the present invention.
Fig. 11 is a schematic diagram illustrating an application of the antenna according to the above preferred embodiment of the present invention.
Fig. 12 is a perspective view of an antenna according to another preferred embodiment of the present invention.
Fig. 13 is a perspective view of an antenna according to another preferred embodiment of the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is 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 the description of the drawings, fig. 3-7, an antenna 100 according to a preferred embodiment of the present invention will be described in the following description, wherein the antenna 100 is adapted to detect the activity status of a user within a target area 200. Further, a detection microwave generated by the antenna 100 can form the long and narrow detection plane 101 in the target region 200, and thus the antenna 100 can be applied to the long and narrow target region 200, and the length of the long and narrow target region 200 is greater than the width of the target region 200. Preferably, the antenna 100 of the present invention is particularly suitable for the long and narrow target area 200 with the length dimension much larger than the width dimension, and when the antenna 100 is applied in the long and narrow target area 200, the antenna 100 is not easily interfered by the user in the non-target area, and thus the antenna 100 has good anti-interference performance.
Further, the antenna 100 can be applied to an electrical device, and the operating state of the electrical device is controlled according to the detection result of the antenna 100, so that the electrical device can provide a user-intelligent service. It is worth mentioning that the specific implementation of the electrical device is not limited, for example, but not limited to, the electrical device may be implemented as one or a combination of a plurality of electronic devices such as a lamp, an air conditioner, a sound, a curtain, a notebook, etc.
Specifically, referring to fig. 3 to 5, 8, 9 and 12, the antenna 100 includes a reference ground 10 and a radiation source 20, wherein the radiation source 20 is adjacently held at one side of the reference ground 10, and a radiation gap 30 is formed between the reference ground 10 and the radiation source 20. The radiation source 20 has a feeding point 201, the feeding point 201 is offset from the physical center of the radiation source 20, the radiation source 20 is electrically connected to an oscillation circuit at the feeding point 201, and the reference ground 10 is electrically connected to the ground potential of the oscillation circuit. The oscillating circuit allows to be powered to generate a microwave excitation signal, and when the microwave excitation signal is switched into the radiation source 20 from the feeding point 201, the radiation source 20 couples itself, and the difference of the current density distribution of the radiation source 20 forms a potential difference and a radiation electric field, and at the same time, the radiation source 20 couples with the reference ground 10. The radiation source 20 interacts with the reference ground 10, the antenna 100 can generate an initial polarization direction to radiate energy outwards at the radiation source 20, and then the antenna 100 emits the detection microwave to the target area 200, the detection microwave forms a reflection echo after being reflected by a user in the target area, and the activity state of the user in the target area 200 is obtained according to the difference between the detection microwave and the reflection echo.
In this particular embodiment of the antenna 100 according to the present invention, there is a predetermined distance between the lateral edges of the reference ground 10 and the lateral edges of the radiation source 20 of the antenna 100, and after the interaction between the reference ground 10 and the radiation source 20, the antenna 100 radiates outwards the detection antenna which forms the elongated detection surface 101.
Specifically, referring to fig. 3 to 5, 8, 9 and 12, the reference ground 10 has a first polarization surface 110, a second polarization surface 120 opposite to the first polarization surface 110, a first side surface 130 connecting the first polarization surface 110 and the second polarization surface 120, and a second side surface 140 opposite to the first side surface 130. The radiation source 20 has a third polarization plane 210, a fourth polarization plane 220 opposite to the third polarization plane 210, a third side plane 230 connected to the third polarization plane 210 and the fourth polarization plane 220, and a fourth side plane 240 opposite to the third side plane 230. The radiation source 20 is spaced apart from one side of the reference ground 10 in such a manner that the third polarization plane 210, the fourth polarization plane 220, the third side 230, and the fourth side 240 correspond to the first polarization plane 110, the second polarization plane 120, the first side 130, and the second side 140 of the reference ground 10, respectively.
Further, a direction of a connecting line between the physical center point of the radiation source 20 and the feeding point 201 is defined as a length direction of the radiation source 20, wherein the third polarization plane 210 and the fourth polarization plane 220 are two sides of the radiation source 20 in the length direction, and the third side 230 and the fourth side 240 are two sides of the radiation source 20 in the width direction. More specifically, the third polarization plane 210 is a side surface of the radiation source 20 in a connection direction from a physical center point of the radiation source 20 to the feeding point 201 (i.e., an initial polarization direction of the radiation source 20), and correspondingly, the fourth polarization plane 220 is a side surface of the radiation source 20 in a connection direction from the feeding point 201 of the radiation source 20 to the physical center point (i.e., a polarization direction of the radiation source 20). That is, the third polarization plane 210 and the fourth polarization plane 220 are two side planes corresponding to two wide sides of the radiation source 20, and the third side plane 230 and the fourth side plane 240 are two side planes corresponding to two long sides of the radiation source 20.
Correspondingly, the length direction of the reference ground 10 is defined to be the same as the length direction of the radiation source 20, wherein the first polarization plane 110 and the second polarization plane 220 are two sides of the reference ground 10 in the length direction, and the first side 130 and the second side 140 are two sides of the reference ground 10 in the width direction. More specifically, the first polarization plane 110 is a side of the reference ground 10 in the initial polarization direction of the radiation source 20, and correspondingly, the second polarization plane 120 is a side of the reference ground 10 in the polarization direction of the radiation source 20. That is, the first polarization plane 110 and the second polarization plane 120 are two side surfaces corresponding to two wide sides of the reference ground 10, and the first side surface 130 and the second side surface 140 are two side surfaces corresponding to two long sides of the reference ground 10.
It is worth mentioning that when the radiation source 20 is fed at the feeding point 201, the current density distribution of the third polarization surface 210 and the fourth polarization surface 220 of the radiation source 20 is reversed, and then, in both side surfaces of the radiation source 20 in the width direction, that is, in the third side surface 230 and the fourth side surface 240, both ends of either one side surface can be coupled to each other to radiate the detection microwave in the radial direction of the connection line between the physical center point of the radiation source 20 and the feeding point 201. That is, when the energy ratio of the radiation source 20 of the antenna coupled to the reference ground 10 is decreased and the energy ratio of the radiation source 20 coupled to itself is increased, the radiation energy of the antenna 100 in the radial direction of the connection line between the physical center point of the radiation source 20 and the feeding point 201 can be increased to allow the detection surface 101 to be compressed in the length direction of the radiation source 20, so as to form the elongated detection surface 101.
It will be appreciated that the definition of the length and width of the radiation source 20 is only intended as a directional limitation on the length and width and does not constitute a limitation that the length dimension is greater than the width dimension, i.e. the definition of the length and width of the radiation source 20 does not constitute a limitation that the respective length dimension is greater than the width dimension.
Further, a first predetermined horizontal distance exists between the first side 130 of the ground reference 10 of the antenna 100 and the third side 230 of the radiation source 20, and a second predetermined horizontal distance exists between the second side 140 of the ground reference 10 and the fourth side 240 of the radiation source 20. When the microwave excitation signal is coupled into the radiation source 20 from the feeding point 201 of the radiation source 20, the energy ratio of mutual coupling between the radiation source 20 and the reference ground 10 is reduced, the energy ratio of mutual coupling between the radiation source 20 and the reference ground 10 is increased, and thus after the interaction between the radiation source 20 and the reference ground 10, the detection microwave radiated by the antenna 100 toward the target region 200 can form the elongated detection surface, so that the antenna 100 is suitable for detecting the elongated target region 200 and has good anti-interference performance.
Still further, with reference to fig. 4 and 9, said first preset horizontal distance parameter between said first side 130 of said ground reference 10 of said antenna 100 and said third side 230 of said radiation source 20 is defined as K, wherein said parameter K has a value ranging from: k is more than or equal to 0 and less than or equal to lambda/32, wherein lambda is the wavelength parameter of the detection microwave emitted by the antenna 100.
Still further, with reference to fig. 4 and 9, a second predetermined horizontal distance parameter L between the second side 140 of the reference ground 10 and the fourth side 240 of the radiation source 20 is given by: l is more than or equal to 0 and less than or equal to lambda/32.
Referring to fig. 3 to 6, in a preferred embodiment of the antenna 100 of the present invention, the third side 230 and the fourth side 240 of the radiation source 20 of the antenna 100 are aligned with the first side 130 and the second side 140 of the ground reference 10, respectively. At this time, the preset distance between the first side 130 and the second side 140 of the reference ground 10 and the third side 230 and the fourth side 240 of the radiation source 20 is zero. The mutual coupling energy ratio between the radiation source 20 and the reference ground 10 is minimum, the mutual coupling between the radiation source 20 and the reference ground 10 hardly occurs, and the mutual coupling energy ratio between the radiation source 20 and the reference ground is strongest. After the interaction between the radiation source 20 and the reference ground 10, the detection microwave generated by the antenna 100 can form the elongated detection surface 101A. The length of the elongated detection surface 101A is much greater than the width of the detection surface 101A.
For example, referring to fig. 7, the antenna 100 is applied to a smart lamp, the smart lamp is installed above a narrow passageway 200A, the antenna 100 radiates the detection microwave toward the narrow passageway 200A to detect the activity state of the user in the narrow passageway 200A, and then the smart lamp adjusts the operation state or the operation mode according to the detection result of the antenna 100 to provide illumination for the user more intelligently and personally. Further, the detection microwaves generated by the antenna 100 towards the inside of the narrow passageway 200A detect the activity state of the user inside the narrow passageway 200A in such a way that the narrow detection surface 101A covers the narrow passageway 200A. Further, the width of the detection surface 101A for detecting the microwave is close to the width of the narrow passageway 200A, and the antenna 100 can cover the narrow passageway 200A in a larger area. Moreover, the long and narrow detection surface 101A does not extend beyond the narrow passageway 200A in the length direction, that is, the detection microwaves generated by the antenna 100 do not cover the non-target area around the narrow passageway 200A. In this way, the activity of users in the non-target area does not interfere with the detection results of the antenna 100. Therefore, the antenna 100 has good anti-interference performance while the antenna 100 obtains the maximum detection range. In the future, the intelligent lamp can provide more intelligent and humanized services for users.
Referring to fig. 8 to 10, in a preferred embodiment of the antenna 100 of the present invention, the first predetermined horizontal distance between the first side 130 of the ground reference 10 of the antenna 100 and the third side 230 of the radiation source 20 is greater than 0 and less than or equal to λ/32, and the second predetermined horizontal distance between the second side 140 of the ground reference 10 and the fourth side 240 of the radiation source 20 is greater than 0 and less than or equal to λ/32, that is, the first side 130 and the second side 140 of the ground reference 10 of the antenna 100 are respectively close to the third side 230 and the fourth side 240 of the radiation source 20. The mutual coupling energy ratio between the radiation source 20 and the reference ground 10 is reduced, and the mutual coupling energy ratio of the radiation source 20 is the strongest. After the interaction between the radiation source 20 and the reference ground 10, the detection microwave generated by the antenna 100 can form the elongated detection surface 101B. The length of the elongated detection surface 101B is much greater than the width of the detection surface 101B. Further, the width of the detection plane 101B is larger than the width of the detection plane 101A, and the length of the detection plane 101B is smaller than the length of the detection plane 101A, so that the antenna 100 can be applied to long and narrow target regions 200 with different widths.
For example, referring to fig. 11, the antenna 100 is applied to the smart light fixture, and radiates the detection microwaves toward the inside of the narrow passageway 200B, the detection microwaves generated by the antenna 100 towards the inside of the narrow passageway 200B detect the activity state of the user in the narrow passageway 200B in such a way that the narrow detection surface 101B covers the narrow passageway 200B, the width of the narrow passage 200B is greater than the width of the narrow passage 200A, the width of the detection surface 101B formed by the antenna 100 applied to the narrow passage 200B is greater than the width of the detection surface 101A formed by the antenna 100 applied to the narrow passage 200A, and the width of the detection surface 101B formed by the antenna 100 applied to the narrow passageway 200B is consistent with or close to the width of the narrow passageway 200B. The antenna 100 can cover the narrow passageway 200B to the maximum area. Moreover, the long and narrow detection surface 101B does not exceed the narrow passageway 200B in the length direction, that is, the detection microwaves generated by the antenna 100 do not cover a non-target area around the narrow passageway 200A, and the activity of the user in the non-target area does not interfere with the detection result of the antenna 100.
In other words, by changing the preset distance existing between the first side 130 of the ground reference 10 of the antenna 100 and the third side 140 of the radiation source 20 and changing the preset distance existing between the second side 140 of the ground reference 10 of the antenna 100 and the fourth side 240 of the radiation source 20, the energy ratio of mutual coupling between the radiation source 20 and the ground reference 10 and the energy ratio of self coupling of the radiation source 20 are changed, and thus when the microwave excitation signal is coupled into the radiation source 20 from the feeding point 201, the beam of the detection microwave radiated outward by the antenna 100 is changed and the long and narrow detection plane 101 can be formed. It should be noted that the specific application of the antenna 100 is merely exemplary and should not be construed as limiting the scope and content of the antenna 100 of the present invention. In addition, the specific dimensions and proportions of the reference ground 10, the radiation source 20 and the detection surface 101 of the antenna 100 shown in the drawings of the specification are merely illustrative and should not be construed as limiting the content and scope of the antenna 100 of the present invention.
It is worth mentioning that, in the above description, the numerical range definitions of the parameter K and the parameter L should be understood as a limitation of the horizontal distance between the first side 130 of the reference ground 10 and the third side 230 of the radiation source 20 when the projection of the third side 230 of the radiation source 20 in the direction perpendicular to the reference ground 10 is located at the reference ground 10, and a limitation of the horizontal distance between the second side 140 of the reference ground 10 and the fourth side 240 of the radiation source 20 when the projection of the fourth side 240 of the radiation source 20 in the direction perpendicular to the reference ground 10 is located at the reference ground 10, respectively, and do not constitute a limitation when the projection of the third side 230 of the radiation source 20 in the direction perpendicular to the reference ground 10 is located outside the reference ground 10 and when the projection of the fourth side 240 of the radiation source 20 in the direction perpendicular to the reference ground 10 is located outside the reference ground 10.
That is, when the projection of the third side 230 of the radiation source 20 in the direction perpendicular to the reference ground 10 is located at the reference ground 10, the distance K between the first side 130 of the reference ground 10 and the third side 230 of the radiation source 20 in the width direction of the radiation source 20 satisfies: k is more than or equal to 0 and less than or equal to lambda/32; when the projection of the fourth side 240 of the radiation source 20 in the direction perpendicular to the reference ground 10 is located at the reference ground 10, the distance L between the second side 140 of the reference ground 10 and the fourth side 240 of the radiation source 20 in the width direction of the radiation source 20 satisfies: l is more than or equal to 0 and less than or equal to lambda/32. When the projection of the third side 230 of the radiation source 20 in the direction perpendicular to the reference ground 10 is located outside the reference ground 10, both ends of the third side 230 of the radiation source 20 can be coupled to each other to correspondingly increase the energy ratio of the self-coupling of the radiation source 20, and when the projection of the fourth side 240 of the radiation source 20 in the direction perpendicular to the reference ground 10 is located outside the reference ground 10, both ends of the fourth side 240 of the radiation source 20 can be coupled to each other to correspondingly increase the energy ratio of the self-coupling of the radiation source 20.
Therefore, in some embodiments of the present invention, a projection of the third side 230 of the radiation source 20 in a direction perpendicular to the reference ground 10 is located outside the reference ground 10, and a distance K between the first side 130 of the reference ground 10 and the third side 230 of the radiation source 20 in a width direction of the radiation source 20 satisfies: k is more than or equal to 0 and less than or equal to lambda/16.
In some embodiments of the present invention, a projection of the fourth side 240 of the radiation source 20 in a direction perpendicular to the reference ground 10 is located outside the reference ground 10, and a distance L between the second side 140 of the reference ground 10 and the fourth side 240 of the radiation source 20 in a width direction of the radiation source 20 satisfies: l is more than or equal to 0 and less than or equal to lambda/16.
In a specific embodiment of the present invention, the first preset horizontal distance between the first side 130 of the ground reference 10 and the third side 230 of the radiation source 20 of the antenna 100 is equal to the second preset horizontal distance between the second side 140 of the ground reference 10 and the fourth side 240 of the radiation source 20. In another specific embodiment of the present invention, the first preset horizontal distance between the first side 130 of the ground reference 10 and the third side 230 of the radiation source 20 is not equal to the second preset horizontal distance between the second side 140 of the ground reference 10 and the fourth side 240 of the radiation source 20, that is, the first preset horizontal distance is greater than the second preset horizontal distance or the first preset horizontal distance is smaller than the second preset horizontal distance. The specific embodiment of the antenna 100 is merely an example, and is not intended to limit the content and scope of the antenna 100 and the detection method thereof.
Referring further to fig. 12 of the drawings of the present specification, in a preferred embodiment of the antenna 100 of the present invention, the third side 230 and the fourth side 240 of the radiation source 20 of the antenna 100 are aligned with the first side 130 and the second side 140 of the reference ground 10, respectively, and the two sides of the radiation source 20 in the width direction are concavely disposed, that is, the third side 230 and the fourth side 240 of the radiation source 20 are concavely disposed, and accordingly, in the first side 130 and the second side 140 of the reference ground 10, portions corresponding to the third side 230 and the fourth side 240 of the radiation source 20 are also concavely disposed, so as to maintain the alignment of the third side 230 and the fourth side 240 of the radiation source 20 with the first side 130 and the second side 140 of the reference ground 10, respectively, the current density distribution at both ends of the third side 230 and the fourth side 240 of the radiation source 20 is enhanced, so that the energy ratio of the radiation source 20 coupled to itself is further increased, and the detection surface 101 can be further narrowed in the length direction of the radiation source 20 compared to the preferred embodiment of the antenna illustrated in fig. 5.
Specifically, in the preferred embodiment of the present invention, the third side 230 and the fourth side 240 of the radiation source 20 are concave curved surfaces, and the portions of the first side 130 and the second side 140 of the reference ground 10 corresponding to the third side 230 and the fourth side 240 of the radiation source 20 are also concave curved surfaces, so as to maintain the alignment of the third side 230 and the fourth side 240 of the radiation source 20 with the first side 130 and the second side 140 of the reference ground 10, respectively.
In particular, referring to fig. 3 to 5, 8, 9, 12 and 13 of the drawings of the present specification, in these embodiments of the present invention, the radiation source 20 further has a grounding point 202, wherein the radiation source 20 is electrically connected to the ground potential of the oscillating circuit at the grounding point 202 to reduce the impedance of the antenna 100, thereby improving the anti-interference performance of the antenna in a manner of improving the quality factor (i.e., Q value) of the antenna 100.
Specifically, in the embodiments of the present invention, the radiation source 20 is grounded at a physical central point thereof, that is, the grounding point 202 is located at the physical central point of the radiation source 20, so as to reduce the impedance of the antenna 100, and simultaneously, to facilitate maintaining the current density distribution of the radiation source 20 when being fed at the feeding point 201, thereby facilitating to ensure the radiation gain of the antenna 100.
It should be noted that the radiation source 20 is electrically connected to the ground reference 10 through a metalized via 203 formed by a metalized via process on the grounding point 202, so as to form a state that the radiation source 20 is grounded at its physical center point, which is beneficial to simplify the grounding circuit structure of the radiation source 20 and improve the consistency and stability of the grounding circuit structure of the radiation source 20.
The size of the ground reference 10 of the antenna 100 of the present invention is reduced compared to the prior art antennas. Specifically, the lengths of the first and second polarization planes 110 and 120 of the reference ground 10 are reduced such that the first and second sides 130 and 140 of the reference ground 10 are close to or fit to the third and fourth sides 230 and 240 of the radiation source 20, respectively, and the preset distance exists between the first and second sides 130 and 140 of the reference ground 10 and the third and fourth sides 230 and 240 of the radiation source 20, respectively. When the microwave excitation signal generated by the oscillation circuit is connected to the radiation source 20 from the feeding point 201, the energy ratio of the mutual coupling between the radiation source 20 and the reference ground 10 is reduced, and the energy ratio of the self coupling of the radiation source 20 is increased. Further, the beam of the detection microwaves generated by the interaction of the reference ground 10 and the radiation source 20 is changed, thereby enabling the formation of the elongated detection surface 101. That is, the size of the ground reference 10 of the antenna 100 of the present invention is reduced compared to the size of the ground reference of the conventional antenna, which is beneficial to reducing the volume of the antenna 100 and realizing miniaturization of the antenna 100, so as to subsequently save the installation space of the antenna 100. Moreover, the manner of reducing the reference ground 10 of the antenna 100 is beneficial to saving the material cost of the antenna 100, thereby reducing the manufacturing cost of the antenna 100.
Further, a third predetermined horizontal distance exists between the first polarization plane 11 of the reference ground 10 of the antenna 100 and the third polarization plane 21 of the radiation source 20, and the third predetermined horizontal distance parameter is defined as M, and the range of the parameter M is: m is more than or equal to lambda/32.
A fourth predetermined horizontal distance exists between the second polarization plane 12 of the reference ground 10 of the antenna 100 and the fourth polarization plane 22 of the radiation source 20, defining a fourth predetermined horizontal distance parameter as N, wherein the parameter N ranges from: n is more than or equal to lambda/32.
It is worth mentioning that the parameter M and the parameter N should satisfy either M ≧ λ/32 or N ≧ λ/32 in order to secure the radiation gain of the antenna 100, wherein optionally the parameter M ≧ λ/32 and the parameter N ≦ λ/32, such that the size of the antenna 100 is reduced in favor of reducing the size of the reference ground 10 in the polarization direction of the radiation source 20 by reducing the third preset horizontal distance between the first polarization plane 11 of the reference ground 10 and the third polarization plane 21 of the radiation source 20, while securing that the radiation source 20 is able to generate an initial polarization direction to detect microwaves interacting with the reference ground 10 when the feeding point 201 is fed on the basis of a structure in which the third preset horizontal distance of the radiation source 20 and the reference ground 10 in the initial polarization direction of the radiation source 20 satisfies M ≧ λ/32, thereby securing a radiation gain of the antenna 100. That is, in some embodiments of the present invention, the value of the parameter M or the parameter N is allowed to be 0, which is not limited in the present invention.
Preferably, a parameter of the length dimension of said first 11 and said second 12 polarization planes of said reference ground 10 of said antenna 100 is defined as a, said parameter a having a value range of: a is more than or equal to lambda/8, the length dimension parameter of the first side surface 13 and the second side surface 14 of the reference ground 10 is B, and the numerical range of the parameter B is as follows: b is more than or equal to lambda/8.
Preferably, the length dimension parameter of the third and fourth polarization surfaces 21, 22 of the radiation source 20 of the antenna 100 is C, and the value range of the parameter C is: c is more than or equal to lambda/8, the length dimension parameter of the first side surface 130 and the second side surface 140 of the radiation source 20 is D, and the range of the parameter D is as follows: d is more than or equal to lambda/8.
It is worth mentioning that, although the overall size of the antenna 100 is reduced and the shape of the detection surface 101 formed by the detection microwaves radiated from the antenna 100 is changed, the radiation distance and the intensity of the detection microwaves generated by the antenna 100 are substantially maintained, and the sensitivity and the detection accuracy of the antenna 100 are ensured.
In another embodiment of the antenna 100 of the present invention, corresponding to fig. 13 of the drawings, the size of the radiation source 20 is increased in the width direction of the radiation source 20, so that the detection microwave generated by the antenna 100 can form the long and narrow detection surface. Specifically, the lengths of the third polarization plane 210 and the fourth polarization plane 220 of the radiation source 20 are increased, and the third side 230 and the fourth side 240 of the radiation source 20 are respectively close to or aligned with the first side 130 and the second side 240 of the reference ground 10, and the preset distance exists between the first side 130 and the second side 140 of the reference ground 10 and the third side 230 and the fourth side 240 of the radiation source 20. When the microwave excitation signal generated by the oscillation circuit is connected to the radiation source 20 from the feeding point 201, the energy ratio of the mutual coupling between the radiation source 20 and the reference ground 10 is reduced, and the energy ratio of the self coupling of the radiation source 20 is increased. Further, the beam of the detection microwaves generated by the interaction of the reference ground 10 and the radiation source 20 is changed, thereby enabling the formation of the elongated detection surface 101.
According to another aspect of the present invention, the present invention further provides a detection method of the antenna 100, wherein the detection method comprises the following steps:
(a) the antenna 100 generates the detection microwave toward the target area 200; and
(b) the long and narrow detection surface 101 is formed on the target region 200.
In particular, the length of the elongated detection surface 101 is much larger than the width of the detection surface 101, so that the antenna 100 is adapted to detect the elongated target region 200.
In particular, in the above method, the energy ratio of mutual coupling between the radiation source 20 and the reference ground 10 is reduced, and the energy ratio of self-coupling of the radiation source 20 is enhanced. After the interaction between the radiation source 20 and the reference ground 10, the detection microwave generated by the antenna 100 can form the elongated detection surface 101B.
In this particular embodiment of the detection method of the antenna 100 of the present invention, the detection method further comprises the steps of: the first preset horizontal distance between the first side 130 of the ground reference 10 holding the antenna 100 and the third side 230 of the radiation source 20 is equal to or greater than 0 and equal to or less than λ/32. And, the detection method further comprises the steps of: a second predetermined horizontal distance between said second side 140 of said reference ground 10 of said antenna 100 and said fourth side 240 of said radiation source 20 is maintained equal to or greater than 0 and equal to or less than λ/32.
Further, in the step (b), further comprising the steps of: the width of the detection surface 101 for keeping the detection of the microwave is close to or equal to the width of the elongated target region 200. For example, but not limited to, the width of the detection surface 101A for detecting microwaves is consistent with the width of the narrow passageway 200A, and the antenna 100 can cover the narrow passageway 200A in a larger area. Moreover, the long and narrow detection surface 101A does not extend beyond the narrow passageway 200A in the length direction, that is, the detection microwaves generated by the antenna 100 do not cover the non-target area around the narrow passageway 200A. In this way, the activity of users in the non-target area does not interfere with the detection results of the antenna 100. Therefore, the antenna 100 has good anti-interference performance while the antenna 100 obtains the maximum detection range.
It will be appreciated by persons skilled in the art that the above embodiments are only examples, wherein features of different embodiments may be combined with each other to obtain embodiments which are easily conceivable in accordance with the disclosure of the invention, but which are not explicitly indicated in the drawings.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (23)
1. An antenna, comprising:
a ground reference having a first plane of polarization, a first side, a second plane of polarization opposite the first plane of polarization, and a second side opposite the first side; and
a radiation source, wherein the radiation source has a feeding point which is offset from a physical center point of the radiation source, the radiation source has a third polarization plane, a fourth polarization plane opposite to the third polarization plane, a third side plane and a fourth side plane opposite to the third side plane, wherein the third polarization plane is a side plane of the radiation source in a direction of a line connecting the physical center point of the radiation source to the feeding point, the fourth polarization plane is a side plane of the radiation source in a direction of a line connecting the feeding point of the radiation source to the physical center point, the radiation source is held at a side of the reference ground at intervals in such a manner that the third polarization plane, the fourth polarization plane, the third side plane and the fourth side plane respectively correspond to the first polarization plane, the second polarization plane, the first side plane and the second side plane of the reference ground, and a radiation gap is formed between the radiation source and the reference ground, a first preset horizontal distance exists between the first side surface of the reference ground and the third side surface of the radiation source, a second preset horizontal distance exists between the second side surface of the reference ground and the fourth side surface of the radiation source, and a detection microwave generated by the antenna can form a long and narrow detection surface.
2. The antenna of claim 1, wherein a first preset horizontal distance parameter between the first side of the ground reference and the third side of the radiation source is K, wherein the parameter K has a value range of: k is more than or equal to 0 and less than or equal to 1/32 lambda, wherein lambda is the wavelength parameter of the detection microwave emitted by the antenna 100.
3. The antenna of claim 2, wherein the second preset horizontal distance parameter between the second side of the ground reference and the fourth side of the radiation source is L, wherein the parameter L has a value range of: l is more than or equal to 0 and less than or equal to 1/32 lambda.
4. The antenna according to claim 3, wherein a third predetermined horizontal distance exists between said first plane of polarization of said antenna with reference to ground and said third plane of polarization of said radiation source, said third predetermined horizontal distance parameter being M, said parameter M ranging from: m is more than or equal to 1/32 lambda.
5. The antenna of claim 4, wherein a fourth predetermined horizontal distance exists between the second polarization plane of the ground reference and the fourth polarization plane of the radiation source, the fourth predetermined horizontal distance being defined as a parameter N, wherein the parameter N ranges from: n is more than or equal to 1/32 lambda.
6. The antenna of claim 5, wherein the length dimension parameter of the first and second polarization planes referenced to ground is A, the value range of parameter A being: a is more than or equal to lambda/8.
7. The antenna of claim 6, wherein the length dimension parameter of the first and second sides referenced to ground is B, the parameter B having a value in the range of: b is more than or equal to lambda/8.
8. The antenna of claim 7, wherein the length dimension parameter C of the third and fourth polarization planes of the radiation source is in the range of: c is more than or equal to lambda/8.
9. The antenna of claim 8, wherein the length dimension parameter of the first and second sides of the radiation source is D, the parameter D ranging from: d is more than or equal to lambda/8.
10. The antenna of any one of claims 1 to 9, wherein the radiation source further has a grounding point, wherein the radiation source is grounded to the grounding point.
11. The antenna of claim 10, wherein the ground point is located at a physical center point of the radiation source.
12. The antenna of claim 11, wherein the radiating source is grounded via a metallized via formed by a metallized via process.
13. The antenna according to any one of claims 1 to 9, wherein the third and fourth sides of the radiation source are kept aligned with the first and second sides of the reference ground, respectively, i.e. the values of the parameter K and the parameter L satisfy K-0 and L-0.
14. The antenna of claim 10, wherein the third and fourth sides of the radiation source are maintained in alignment with the first and second sides of the reference ground, respectively, i.e., the values of the parameter K and the parameter L satisfy K-0 and L-0.
15. The antenna of claim 13, wherein the third and fourth sides of the radiation source are disposed concavely, corresponding to a portion of the first side referenced to ground corresponding to the third side of the radiation source, and a portion of the second side corresponding to the fourth side of the radiation source.
16. The antenna of claim 14, wherein the third and fourth sides of the radiation source are disposed concavely, corresponding to a portion of the first side referenced to ground corresponding to the third side of the radiation source and a portion of the second side corresponding to the fourth side of the radiation source.
17. The antenna of claim 15, wherein the third and fourth sides of the radiation source are concavely curved, and portions of the first and second sides referenced to ground corresponding to the third and fourth sides of the radiation source are also concavely curved.
18. The antenna of claim 16, wherein the third and fourth sides of the radiation source are concavely curved, and portions of the first and second sides referenced to ground corresponding to the third and fourth sides of the radiation source are also concavely curved.
19. A method for detecting an antenna, the method comprising the steps of:
(a) generating a detection microwave toward a target area; and
(b) forming a long and narrow detection surface on the target area.
20. The detection method according to claim 19, further comprising the steps of: the energy ratio of mutual coupling of the radiation source and the reference ground is reduced, and the energy ratio of self coupling of the radiation source is increased.
21. The detection method according to claim 20, further comprising the steps of: a predetermined distance between the first side maintaining a ground reference and a third side of a radiation source is greater than or equal to 0 and less than or equal to 1/32 λ.
22. The detection method according to claim 21, further comprising the steps of: the preset distance between the second side maintaining the reference ground and the fourth side of the radiation source is greater than or equal to 0 and less than or equal to 1/32 lambda.
23. The detection method according to claim 22, wherein in the above method, further comprising the steps of: the width of the detection surface for detecting the microwave is kept close to or equal to the width of the target area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010028129.9A CN111129756A (en) | 2020-01-10 | 2020-01-10 | Antenna and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010028129.9A CN111129756A (en) | 2020-01-10 | 2020-01-10 | Antenna and detection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111129756A true CN111129756A (en) | 2020-05-08 |
Family
ID=70487807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010028129.9A Pending CN111129756A (en) | 2020-01-10 | 2020-01-10 | Antenna and detection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111129756A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1881829A (en) * | 1998-07-21 | 2006-12-20 | 高通股份有限公司 | System and method for reducing call dropping rates in a multi-beam communication system |
| WO2017054127A1 (en) * | 2015-09-29 | 2017-04-06 | 华为技术有限公司 | Communication equipment |
| CN107768833A (en) * | 2017-10-09 | 2018-03-06 | 成都瑞德星无线技术有限公司 | A kind of any polarization broad beam paster antenna |
| CN109378584A (en) * | 2018-12-04 | 2019-02-22 | 深圳迈睿智能科技有限公司 | Anti-interference antenna and its manufacturing method |
| US10263327B1 (en) * | 2018-06-11 | 2019-04-16 | Gaodi ZOU | Anti-interference microwave antenna |
| KR102019434B1 (en) * | 2018-09-06 | 2019-09-06 | 경상대학교 산학협력단 | Array antenna arranged in horizontal direction along y-axis for wide elevation |
| US20190319364A1 (en) * | 2018-04-11 | 2019-10-17 | Qualcomm Incorporated | Patch antenna array |
| CN211293290U (en) * | 2020-01-10 | 2020-08-18 | 深圳迈睿智能科技有限公司 | Microwave detection module |
-
2020
- 2020-01-10 CN CN202010028129.9A patent/CN111129756A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1881829A (en) * | 1998-07-21 | 2006-12-20 | 高通股份有限公司 | System and method for reducing call dropping rates in a multi-beam communication system |
| WO2017054127A1 (en) * | 2015-09-29 | 2017-04-06 | 华为技术有限公司 | Communication equipment |
| CN107768833A (en) * | 2017-10-09 | 2018-03-06 | 成都瑞德星无线技术有限公司 | A kind of any polarization broad beam paster antenna |
| US20190319364A1 (en) * | 2018-04-11 | 2019-10-17 | Qualcomm Incorporated | Patch antenna array |
| US10263327B1 (en) * | 2018-06-11 | 2019-04-16 | Gaodi ZOU | Anti-interference microwave antenna |
| KR102019434B1 (en) * | 2018-09-06 | 2019-09-06 | 경상대학교 산학협력단 | Array antenna arranged in horizontal direction along y-axis for wide elevation |
| CN109378584A (en) * | 2018-12-04 | 2019-02-22 | 深圳迈睿智能科技有限公司 | Anti-interference antenna and its manufacturing method |
| CN211293290U (en) * | 2020-01-10 | 2020-08-18 | 深圳迈睿智能科技有限公司 | Microwave detection module |
Non-Patent Citations (1)
| Title |
|---|
| 潘荣霖等: "《飞航导弹测高装置与伺服机构》", 31 August 2009, 宇航出版社, pages: 160 - 161 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7804458B2 (en) | Slot antenna | |
| US7095374B2 (en) | Low-profile embedded ultra-wideband antenna architectures for wireless devices | |
| AU2001269413B2 (en) | Internal antennas for mobile communication devices | |
| JPH10294614A (en) | Cellular antenna | |
| AU2011354510A1 (en) | Antenna having external and internal structures | |
| TWM529948U (en) | Communication device | |
| CN217427078U (en) | Half-wave reverse-folding directional microwave detection antenna | |
| TW201733207A (en) | Antenna system | |
| CN211293290U (en) | Microwave detection module | |
| KR100819196B1 (en) | Uhf band rfid tag antenna mountable on metallic object | |
| WO2021128672A1 (en) | Microwave doppler detection module and device | |
| CN211150778U (en) | Microwave detection module | |
| CN111129756A (en) | Antenna and detection method thereof | |
| CN111293414A (en) | Microwave inductor | |
| CN111162382A (en) | Miniaturized microwave detection device and manufacturing method thereof | |
| CN108879080B (en) | Flat antenna | |
| JP4304642B1 (en) | Radio wave sensor | |
| US20060176221A1 (en) | Low-profile embedded ultra-wideband antenna architectures for wireless devices | |
| CN111129755A (en) | Beam shaping method | |
| KR20020041610A (en) | Multi-band omni antenna in wireless communication system | |
| CN219643109U (en) | Antenna | |
| CN218158309U (en) | Microwave detection device | |
| CN211150781U (en) | Miniaturized microwave detection device | |
| CN211238503U (en) | Miniaturized microwave detection device | |
| CN211150780U (en) | Miniaturized microwave detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518106 room 101-1101, building 17, diandaguyuan Industrial Park, mashantou community, Matian street, Guangming District, Shenzhen City, Guangdong Province Applicant after: SHENZHEN MERRYTEK TECHNOLOGY Co.,Ltd. Address before: 2 / F and 3 / F, building 3, 380 Xiangshan Avenue, Luotian community, Yanluo street, Bao'an District, Shenzhen City, Guangdong Province 518127 Applicant before: SHENZHEN MERRYTEK TECHNOLOGY Co.,Ltd. |