CN210516980U - Microstrip receiving antenna, transmitting antenna and vehicle-mounted phased array antenna - Google Patents
Microstrip receiving antenna, transmitting antenna and vehicle-mounted phased array antenna Download PDFInfo
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- CN210516980U CN210516980U CN201920937351.3U CN201920937351U CN210516980U CN 210516980 U CN210516980 U CN 210516980U CN 201920937351 U CN201920937351 U CN 201920937351U CN 210516980 U CN210516980 U CN 210516980U
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Abstract
The utility model discloses a microstrip receiving antenna, transmitting antenna and on-vehicle phased array antenna, through set up the first radiation paster of rectangle, the second radiation paster of size difference on the outermost surface of multilayer microwave board to set up coupling gap, feed stripline in the inboard, set up bottom microstrip feeder on another outside surface, the inboard first signal hole of connecting feed stripline and bottom microstrip feeder that sets up obtains receiving antenna; and arranging an upper-layer radiation patch on the outermost surface of the multilayer microwave board, arranging a lower-layer radiation patch covering the upper-layer radiation patch in the board, arranging a bottom-layer microstrip on the other outer side surface, and arranging a second signal hole connecting the lower-layer radiation patch and the bottom-layer microstrip in the board to obtain the transmitting antenna. And mounting the transmitting antenna and the receiving antenna on the same microwave board to obtain the phased array transceiving antenna. The antenna works in a millimeter wave high frequency band, has the functions of miniaturization and two-dimensional imaging, and has the technical effect of improving the scanning precision of the vehicle-mounted phased array radar.
Description
Technical Field
The utility model relates to a millimeter wave frequency channel antenna technical field especially relates to a microstrip receiving antenna, transmitting antenna and on-vehicle phased array antenna.
Background
The radio waves adopted by the existing radar scanning technology mainly comprise: far infrared/near infrared, ultrasonic wave, millimeter wave and the like, when in practical application, the far infrared/near infrared light wave is easily influenced by changes of weather environment, the penetration capability of the far infrared/near infrared light wave is deteriorated in rainy or foggy severe weather, and the far infrared/near infrared light wave radar can not be used even in extreme weather; the ultrasonic wave has a slow propagation speed relative to the electromagnetic wave, when the automobile runs on a highway for hundreds of kilometers, the ultrasonic wave cannot catch up the speed of the automobile, so that the scanning result error of the ultrasonic radar is large when the ultrasonic radar is applied on the automobile, meanwhile, the ultrasonic radar has poor directivity and a large divergence angle, the resolution is reduced due to serious energy loss in the divergence process, the automobile close to a lane or an object on the roadside is easily mistaken for a measurement target, and the scanning precision of the ultrasonic radar is further reduced when the ultrasonic radar is applied on the automobile; the millimeter wave radar has the advantages of short wavelength, high directivity, strong straight line penetration capability, capability of detecting the distance, the relative speed and the direction of a target, capability of imaging and the like, and is very suitable for being applied to a vehicle-mounted radar system.
At present, the millimeter wave radar antenna for the vehicle on the market is usually realized by a one-dimensional linear array formed by series-fed antennas of a few channels, so that the millimeter wave radar antenna only has a one-dimensional scanning function, can realize the functions of distance measurement, speed measurement and collision prevention, but does not have an imaging function. Meanwhile, in the conventional millimeter wave radar antenna for the vehicle, various processing chips and antenna array planes are generally arranged on the same side of the PCB, so that the space area of the millimeter wave radar antenna for the vehicle is large; meanwhile, the traditional high-frequency antenna is usually realized by adopting an LTCC process, and the production cost is higher.
Therefore, the technical problems that the vehicle-mounted millimeter wave radar antenna does not have an imaging function, is large in size and high in production cost exist in the prior art.
SUMMERY OF THE UTILITY MODEL
The application provides a microstrip receiving antenna, transmitting antenna and on-vehicle phased array antenna for solve the technical problem that the on-vehicle millimeter wave radar antenna that exists does not have imaging function, volume is great, manufacturing cost is higher among the prior art.
The present application provides in a first aspect a multi-layer board microstrip receiving antenna, comprising:
receiving a multi-layer microwave board;
the first radiation patch and the second radiation patch are arranged on the outer surface of the first microwave board of the receiving multilayer microwave board at the outermost side, the first radiation patch and the second radiation patch are rectangular, and the sizes of the first radiation patch and the second radiation patch are different;
the coupling slot is arranged on a second microwave board in the receiving multi-layer microwave board and is positioned in the projection range of the first radiation patch and the second radiation patch on the second microwave board;
a feeding strip line disposed on a third microwave board in the receiving multi-layer microwave board and connected to the coupling slot;
a bottom layer microstrip feed line arranged on the outer surface of a fourth microwave board which is arranged at the outermost side of the receiving multi-layer microwave board, wherein the fourth microwave board is different from the first microwave board;
and the first signal hole is arranged in the receiving multilayer microwave board and is connected with the feed strip line and the bottom layer microstrip feed line.
Optionally, the receiving antenna further includes:
at least two first metal ground layers disposed on a surface of an inner microwave board of the receiving multi-layer microwave board to be grounded;
and the first grounding hole is arranged in the receiving multilayer microwave board and is connected with the two layers of the first metal ground layers.
Optionally, the receiving antenna further includes:
at least two first shielding holes are arranged in the receiving multilayer microwave board and surround the feed strip line, wherein the at least two first shielding holes enclose a first shielding cavity.
Optionally, the first signal hole, the first ground hole, and the first shielding hole are axially parallel, and the axial direction is perpendicular to the board surface of the receiving multi-layer microwave board.
Optionally, the number of the first radiation patches and the number of the second radiation patches are even, wherein the first radiation patches and the second radiation patches are both symmetrically arranged with respect to the same straight line.
A second aspect of the embodiments of the present application provides a multi-layer microstrip transmitting antenna, including:
emitting a multi-layer microwave board;
the upper-layer radiation patch is arranged on the outer surface of the first layer plate of the transmitting multilayer microwave board at the outermost side;
the lower radiation patch is arranged on a second layer plate in the transmitting multilayer microwave board, and the upper radiation patch is positioned in the projection range of the lower radiation patch on the first layer plate;
the bottom layer microstrip is arranged on the outer surface of a third layer plate of the transmitting multi-layer microwave board, which is positioned at the outermost side, and the third layer plate is different from the first layer plate;
and the second signal hole is arranged in the transmitting multilayer microwave board and is connected with the lower radiation patch and the lower microstrip.
Optionally, the transmitting antenna further comprises:
at least two second metal ground layers disposed on a surface of an inner microwave board of the transmitting multi-layer microwave board to be grounded;
and the second grounding hole is arranged in the transmitting multilayer microwave board and is connected with the two layers of second metal ground layers.
Optionally, the axial directions of the second signal hole and the second ground hole are parallel, and the axial direction is perpendicular to the plate surface of the receiving multi-layer microwave board.
Optionally, the upper radiation patches are rectangular, and when the number of the upper radiation patches is at least two, the at least two upper radiation patches are arranged in a linear shape.
A third aspect of the present application provides an on-vehicle phased array transmit-receive antenna, comprising:
a receiving array formed by the receiving antennas according to the first aspect, wherein the receiving multilayer microwave boards of all the receiving antennas in the receiving array are the same first multilayer microwave board;
the transmitting array composed of the transmitting antennas according to the second aspect, wherein the transmitting multi-layer microwave boards of all the transmitting antennas in the transmitting array are the same second multi-layer microwave board;
all the first radiation patches, the second radiation patches in the receiving array and all the upper radiation patches in the transmitting array are located on the same surface of the same microwave board, and all the feed strip lines in the receiving array and all the lower radiation patches in the transmitting array are located on the same surface of the same microwave board; all bottom layer microstrip feeder lines in the receiving array surface and all bottom layer microstrips in the transmitting array surface are positioned on the same surface of the same microwave laminate; and the thickness of the first multilayer microwave board is the same as that of the second multilayer microwave board.
Optionally, the array structure of the first radiation patch, the second radiation patch, and the upper radiation patch is a sparse array structure.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
according to the technical scheme in the embodiment of the application, the first rectangular radiation patch and the second rectangular radiation patch which are different in size are arranged on the outermost surface of the multilayer microwave board, the coupling gap and the feed strip line are designed in the board, the bottom layer microstrip feeder line is arranged on the other outer side surface of the multilayer microwave board, and the first signal hole which is connected with the feed strip line and the bottom layer microstrip feeder line is arranged in the board, so that the microstrip receiving antenna is obtained; the upper radiation patch is arranged on the outermost surface of the multilayer microwave board, the lower radiation patch capable of covering the upper radiation patch is arranged in the board, the bottom microstrip is arranged on the surface of the other outer side, and the second signal hole for connecting the lower radiation patch and the bottom microstrip is arranged in the board to obtain the microstrip transmitting antenna. And mounting the microstrip transmitting antenna and the microstrip receiving antenna on the same multilayer microwave board to obtain the vehicle-mounted phased array transceiving antenna. The antenna works in a millimeter wave high frequency band, has the functions of miniaturization and two-dimensional imaging, and has the technical effect of improving the scanning precision of the vehicle-mounted phased array radar.
Drawings
Fig. 1 is a cross-sectional structural diagram of a multi-layer microstrip receiving antenna according to an embodiment of the present invention;
fig. 2 is a three-dimensional structure diagram of a multi-layer microstrip receiving antenna according to an embodiment of the present invention;
fig. 3 is a cross-sectional structure diagram of a multi-layer microstrip transmitting antenna according to an embodiment of the present invention;
fig. 4 is a three-dimensional structure diagram of a multi-layer microstrip transmitting antenna according to an embodiment of the present invention;
fig. 5 is a front structure diagram of a vehicle-mounted phased array transceiving antenna according to an embodiment of the present invention;
fig. 6 is a layout structure diagram of a receiving antenna subarray of a sparse array structure according to an embodiment of the present invention.
Detailed Description
The application provides a microstrip receiving antenna, transmitting antenna and on-vehicle phased array antenna for solve the technical problem that the on-vehicle millimeter wave radar antenna that exists does not have imaging function, volume is great, manufacturing cost is higher among the prior art.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
according to the technical scheme in the embodiment of the application, the first rectangular radiation patch and the second rectangular radiation patch which are different in size are arranged on the outermost surface of the multilayer microwave board, the coupling gap and the feed strip line are designed in the board, the bottom layer microstrip feeder line is arranged on the other outer side surface of the multilayer microwave board, and the first signal hole which is connected with the feed strip line and the bottom layer microstrip feeder line is arranged in the board, so that the microstrip receiving antenna is obtained; the upper radiation patch is arranged on the outermost surface of the multilayer microwave board, the lower radiation patch capable of covering the upper radiation patch is arranged in the board, the bottom microstrip is arranged on the surface of the other outer side, and the second signal hole for connecting the lower radiation patch and the bottom microstrip is arranged in the board to obtain the microstrip transmitting antenna. And mounting the microstrip transmitting antenna and the microstrip receiving antenna on the same multilayer microwave board to obtain the vehicle-mounted phased array transceiving antenna. The antenna works in a millimeter wave high frequency band, has the functions of miniaturization and two-dimensional imaging, and has the technical effect of improving the scanning precision of the vehicle-mounted phased array radar.
The technical solutions of the present application are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present application are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Example one
Referring to fig. 1 and fig. 2, an embodiment of the present application provides a multi-layer microstrip receiving antenna, including:
receiving a multi-layer microwave board;
a first radiating patch 101 and a second radiating patch 102, which are arranged on the outer surface of the first microwave board of the receiving multi-layer microwave board at the outermost side, wherein the first radiating patch 101 and the second radiating patch 102 are rectangular, and the first radiating patch 101 and the second radiating patch 102 have different sizes; it should be noted that the different sizes in the embodiment of the present application may mean that the lengths and widths of the first radiation patch 101 and the second radiation patch 102 are different from each other, so that two different resonant frequencies may be formed. Meanwhile, the lengths and widths of the first radiation patch 101 and the second radiation patch 102 correspond to the operating frequency of the microstrip receiving antenna, so that the frequency of the infinite electromagnetic wave received by the first radiation patch 101 and the second radiation patch 102 can belong to the operating frequency band of the receiving antenna, that is, the millimeter wave high frequency band.
A coupling slot 103 disposed on a second microwave board in the receiving multi-layer microwave board and located in a projection range of the first radiation patch 101 and the second radiation patch 102 on the second microwave board;
a feeding strip line 104 disposed on a third microwave board among the receiving multi-layer microwave boards and connected to the coupling slot 103;
a bottom layer microstrip feed line 105 provided on an outer surface of a fourth microwave board on an outermost side of the receiving multi-layer microwave board, the fourth microwave board being different from the first microwave board;
a first signal hole 106 disposed in the receiving multi-layer microwave board and connecting the feeding stripline 104 and the underlying microstrip feed line 105.
In actual operation, a high-frequency-band millimeter wave signal can be received by the first radiation patch 101 and the second radiation patch 102, and then the signal is coupled to the feed strip line 104 through the coupling slot 103, and then transmitted to the bottom layer microstrip feed line 105 through the first signal hole 106, and finally transmitted to the post-stage circuit through the bottom layer microstrip feed line 105. Meanwhile, the surface of the microwave board where the radiation patch of the receiving antenna is located is not provided with a radio frequency processing chip, so that the overall cross-sectional area of the antenna can be reduced, and the technical effect that the millimeter wave high-frequency band microstrip antenna tends to be more miniaturized is achieved.
Further, the receiving antenna in the embodiment of the present application further includes:
at least two first metal ground layers 1071, the first metal ground layers 1071 being disposed on a surface of an inner microwave board of the receiving multi-layer microwave board to be grounded;
and a first ground hole 1072 disposed in the receiving multi-layer microwave board and connecting the two first metal layers 1071.
That is to say, the first metal ground layers 1071 in this embodiment of the present application may be two or more layers, the first ground holes 1072 may also be one or more layers, each first ground hole 1072 connects two layers of the first metal ground layers 1071, and as for each first ground hole 1072 which two layers of the first metal ground layers 1071 the user is connected respectively, the user may set himself as required, thereby improving the applicability and expandability of the receiving antenna in this embodiment of the present application.
Still further, the receiving antenna further includes:
at least two first shielding holes 108 disposed in the receiving multi-layer microwave board and surrounding the feeding stripline 104, wherein the at least two first shielding holes 108 enclose a first shielding cavity.
It should be noted that the first shielding hole 108 may be provided in a microwave board where the feeding stripline 104 is located, or may be provided in two microwave boards adjacent to the feeding stripline 104, as long as the first shielding hole surrounds the feeding stripline 104. Meanwhile, the microwave board nearest to the feeding stripline 104 may enclose the first shielding cavity with the first shielding holes 108.
In the technical solution of the embodiment of the present application, a resonance point different from that formed by the first radiation patch 101 and the second radiation patch 102 can be formed by the first shielding cavity, so that the bandwidth of the receiving antenna can be further widened; simultaneously, first shielding chamber still has the effect that reduces coupling influence between the antenna array element, can avoid the antenna array face performance degradation that arouses because of strong coupling, therefore the technical scheme in this application embodiment still has the technical effect that further promotes antenna communication performance.
Still further, the first signal hole 106, the first ground hole 1072, and the first shielding hole 108 are axially parallel to each other, so as to form a coaxial structure to achieve a transmission function of radio frequency signals. In addition, in the technical solution in this embodiment of the application, a relative distance between the first ground via 1072 and the first signal via 106 is a preset distance, so that the impedance of the coaxial-like structure is a preset impedance, and the communication performance and the applicability of the receiving antenna can be further improved. In addition, the axial directions of the first signal hole 106, the first ground hole 1072, and the first shielding hole 108 are perpendicular to the plate surface of the receiving multi-layer microwave board, so that the actual space volumes of the first signal hole 106, the first ground hole 1072, and the first shielding hole 108 can be minimized, on one hand, the processing and production raw materials can be saved, and on the other hand, the processing and production difficulty can be reduced.
Still further, the number of the first radiation patches 101 and the second radiation patches 102 is an even number, wherein the first radiation patches 101 and the second radiation patches 102 are symmetrically arranged with respect to the same straight line.
The same straight line may be any straight line on the radiation patch, for example, a center line, a diagonal line, a vertical line on the surface of the radiation patch, or even a line on the first radiation patch 101 or the second radiation patch 102, etc. Of course, the first radiation patch 101 and the second radiation patch 102 may also be disposed symmetrically with respect to a plurality of straight lines, respectively, so that antenna magnetic fields of different modes can be formed to meet different requirements.
In the embodiment of the present application, the number of the first radiation patches 101 is four, the number of the second radiation patches 102 is two, the first radiation patches 101 and the second radiation patches 102 are not only symmetrical with respect to a center line of the radiation patches, but also the second radiation patches 102 are symmetrical with respect to a center line where the two first radiation patches 101 are located in common. Of course, other similar arrangements may be provided in actual operation, and the technical solution of the embodiment of the present application is not further limited.
Example two
Referring to fig. 3 and 4, a second embodiment of the present application provides a multi-layer microstrip transmitting antenna, including:
emitting a multi-layer microwave board;
an upper radiation patch 201 arranged on the outer surface of the first layer plate of the transmitting multilayer microwave board at the outermost side;
a lower radiation patch 202 arranged on a second layer plate in the transmitting multilayer microwave board, wherein the upper radiation patch 201 is positioned in the projection range of the lower radiation patch 202 on the first layer plate; it should be noted that the number of the upper radiation patches 201 and the lower radiation patches 202 may be one or more. In the embodiment of the present application, the lower radiation patch 202 is a plurality of radiation patches which are pieced together to form a whole lower radiation patch 202. Two different resonant frequencies can be formed by the arrangement of the upper layer radiation patch 201 and the lower layer radiation patch 202, so that the bandwidth of the microstrip transmitting antenna is widened.
The bottom layer micro-strip 203 is arranged on the outer surface of a third layer plate which is arranged at the outermost side of the transmitting multi-layer microwave board, and the third layer plate is different from the first layer plate;
and a second signal hole 204 disposed in the transmitting multi-layer microwave board and connecting the lower radiation patch 202 and the lower microstrip 203.
In actual operation, a radio frequency signal may be input from the bottom microstrip 203, transmitted to the bottom radiation patch 202 through the second signal hole 204, then radiated and fed to the upper radiation patch 201 through the bottom radiation patch 202, and finally radiated to an external space through the upper radiation patch 201. Similar to the receiving antenna in the first embodiment, the surface of the microwave board where the radiation patch of the transmitting antenna is located in the embodiment of the present application is not provided with a radio frequency processing chip, so that the overall cross-sectional area of the antenna can be reduced, and the technical effect of making the millimeter wave high-frequency microstrip antenna more compact is achieved.
Further, the transmitting antenna further includes:
at least two second metal ground layers 2051, the second metal ground layers 2051 being disposed on the surface of the inner microwave board of the transmitting multi-layer microwave board to be grounded;
and a second ground hole 2052 disposed in the transmitting multi-layered microwave board and connecting the two second metal layers 2051.
Similarly, the second metal ground layers 2051 in this embodiment of the application may also be two or more layers, the second ground holes 2052 may also be one or more layers, each second ground hole 2052 is connected to two layers of second metal ground layers 2051, and as for each second ground hole 2052, which two layers of second metal ground layers 2051 the user is connected to respectively, the user may set itself according to needs, so that the applicability and expandability of the receiving antenna in this embodiment of the application may be improved.
Further, the axial directions of the second signal hole 204 and the second ground hole 2052 are parallel and perpendicular to the plate surface of the transmitting multi-layer microwave board. Similar to the receiving antenna in the first embodiment, the second signal hole 204 and the second ground hole 2052 are axially parallel to each other, so as to form a coaxial-like structure to achieve a function of transmitting radio frequency signals. In addition, in the technical solution in this embodiment of the application, a relative distance between the second ground hole 2052 and the second signal hole 204 is a predetermined distance, so that impedance of a coaxial structure in the transmitting antenna can be predetermined impedance, and communication performance and applicability of the transmitting antenna can be further improved.
Still further, the upper radiation patches 201 are rectangular, and when the number of the upper radiation patches 201 is at least two, the at least two upper radiation patches 201 are arranged in a linear shape.
EXAMPLE III
Referring to fig. 5 and 6, a third embodiment of the present application provides a vehicle-mounted phased array transceiver antenna, including:
a receiving front 301 composed of receiving antennas according to the first embodiment, where the receiving multi-layer microwave boards of all receiving antennas in the receiving front 301 are the same first multi-layer microwave board;
the transmitting array 302 composed of the transmitting antennas according to the second embodiment, wherein the transmitting multi-layer microwave boards of all the transmitting antennas in the transmitting array 302 are the same second multi-layer microwave board;
wherein all the first radiation patches 101 and the second radiation patches 102 in the receiving array 301 and all the upper radiation patches 201 in the transmitting array 302 are located on the same surface of the same microwave board, and all the feeding striplines 104 in the receiving array 301 and all the lower radiation patches 202 in the transmitting array 302 are located on the same surface of the same microwave board; all the bottom-layer microstrip feed lines 105 in the receiving front 301 and all the bottom-layer microstrips 203 in the transmitting front 302 are positioned on the same surface of the same microwave laminate; and the thickness of the first multilayer microwave board is the same as that of the second multilayer microwave board.
Through the arrangement, the receiving antenna and the transmitting antenna of the vehicle-mounted phased array transceiving antenna product in the embodiment of the application are compatible, so that the design and the production of the whole transceiving antenna can be completed under the conditions of minimum production cost and product space volume.
Further, in the embodiment of the present application, the array structure of the multilayer microstrip receiving antenna in the receiving array 301 is a sparse array structure as shown in fig. 6 (all small squares in fig. 6 are multilayer microstrip receiving antennas in the first embodiment), that is, the sparse array structure in fig. 6 may be adopted by the multilayer microstrip receiving antenna in fig. 2 to form a receiving antenna sub-array, and then the receiving antenna sub-array in fig. 6 is formed into the receiving array 301 in fig. 5, so that the array layout space can be greatly saved, and the back chip arrangement is facilitated; the array structure of the multi-layer microstrip transmitting antenna may be a sequential arrangement structure, so that the arrangement manner of the upper layer radiation patches 201 is also a linear transmitting array 302 as shown in fig. 5. The antenna array surface structure can be more regular by the array arrangement mode, and the design and the chip layout are convenient; meanwhile, a plurality of multilayer plate microstrip receiving antennas and multilayer plate microstrip transmitting antennas in the embodiment of the application can be further arranged in an array mode, so that the problem of high sidelobe caused by regular array arrangement can be solved through full-array amplitude phase weighting, the vehicle-mounted phased array antenna can realize phased array two-dimensional scanning, and the radar imaging function is further realized.
Therefore, the technical scheme in the embodiment of the application obtains the microstrip receiving antenna by arranging the first rectangular radiation patch and the second rectangular radiation patch with different sizes on the outermost surface of the multilayer microwave board, designing a coupling slot and a feed strip line in the board, arranging a bottom layer microstrip feed line on the other outer side surface, and arranging a first signal hole for connecting the feed strip line and the bottom layer microstrip feed line in the board; the upper radiation patch is arranged on the outermost surface of the multilayer microwave board, the lower radiation patch capable of covering the upper radiation patch is arranged in the board, the bottom microstrip is arranged on the surface of the other outer side, and the second signal hole for connecting the lower radiation patch and the bottom microstrip is arranged in the board to obtain the microstrip transmitting antenna. And mounting the microstrip transmitting antenna and the microstrip receiving antenna on the same multilayer microwave board to obtain the vehicle-mounted phased array transceiving antenna. The antenna works in a millimeter wave high frequency band, has the functions of miniaturization and two-dimensional imaging, and has the technical effect of improving the scanning precision of the vehicle-mounted phased array radar.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Further, the steps of the methods in the technical solution of the present application may be reversed, and the sequence may be changed while still falling within the scope of the present invention. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (11)
1. A multi-layer microstrip receive antenna comprising:
receiving a multi-layer microwave board;
the first radiation patch and the second radiation patch are arranged on the outer surface of the first microwave board of the receiving multilayer microwave board at the outermost side, the first radiation patch and the second radiation patch are rectangular, and the sizes of the first radiation patch and the second radiation patch are different;
the coupling slot is arranged on a second microwave board in the receiving multi-layer microwave board and is positioned in the projection range of the first radiation patch and the second radiation patch on the second microwave board;
a feeding strip line disposed on a third microwave board in the receiving multi-layer microwave board and connected to the coupling slot;
a bottom layer microstrip feed line arranged on the outer surface of a fourth microwave board which is arranged at the outermost side of the receiving multi-layer microwave board, wherein the fourth microwave board is different from the first microwave board;
and the first signal hole is arranged in the receiving multilayer microwave board and is connected with the feed strip line and the bottom layer microstrip feed line.
2. The receive antenna of claim 1, wherein the receive antenna further comprises:
at least two first metal ground layers disposed on a surface of an inner microwave board of the receiving multi-layer microwave board to be grounded;
and the first grounding hole is arranged in the receiving multilayer microwave board and is connected with the two layers of the first metal ground layers.
3. The receive antenna of claim 2, wherein the receive antenna further comprises:
at least two first shielding holes are arranged in the receiving multilayer microwave board and surround the feed strip line, wherein the at least two first shielding holes enclose a first shielding cavity.
4. The receiving antenna of claim 3, wherein the first signal aperture, the first ground aperture, and the first shielding aperture have axes parallel to each other, and the axes are perpendicular to the plate surface of the receiving multi-layer microwave board.
5. The receive antenna of claim 1, wherein the number of the first and second radiating patches is an even number, wherein the first and second radiating patches are each symmetrically arranged with respect to a same line.
6. A multi-layer microstrip transmit antenna comprising:
emitting a multi-layer microwave board;
the upper-layer radiation patch is arranged on the outer surface of the first layer plate of the transmitting multilayer microwave board at the outermost side;
the lower radiation patch is arranged on a second layer plate in the transmitting multilayer microwave board, and the upper radiation patch is positioned in the projection range of the lower radiation patch on the first layer plate;
the bottom layer microstrip is arranged on the outer surface of a third layer plate of the transmitting multi-layer microwave board, which is positioned at the outermost side, and the third layer plate is different from the first layer plate;
and the second signal hole is arranged in the transmitting multilayer microwave board and is connected with the lower radiation patch and the lower microstrip.
7. The transmit antenna of claim 6, wherein the transmit antenna further comprises:
at least two second metal ground layers disposed on a surface of an inner microwave board of the transmitting multi-layer microwave board to be grounded;
and the second grounding hole is arranged in the transmitting multilayer microwave board and is connected with the two layers of second metal ground layers.
8. The transmitting antenna of claim 7, wherein the second signal aperture and the second ground aperture are parallel in an axial direction, and the axial direction is perpendicular to the plane of the transmitting multi-layer microwave board.
9. The transmitting antenna of claim 6, wherein the upper radiating patches are rectangular and the at least two upper radiating patches are arranged in a straight line when the number of the upper radiating patches is at least two.
10. An on-vehicle phased array transmit receive antenna, comprising:
a receive front formed by the receive antennas according to any of claims 1 to 5, wherein the receive microwave multilayer boards of all the receive antennas in the receive front are the same first microwave multilayer board;
a transmit front composed of transmit antennas according to any of claims 6 to 9, the transmit multi-layer microwave boards of all transmit antennas in the transmit front being the same second multi-layer microwave board;
all the first radiation patches, the second radiation patches in the receiving array and all the upper radiation patches in the transmitting array are located on the same surface of the same microwave board, and all the feed strip lines in the receiving array and all the lower radiation patches in the transmitting array are located on the same surface of the same microwave board; all bottom layer microstrip feeder lines in the receiving array surface and all bottom layer microstrips in the transmitting array surface are positioned on the same surface of the same microwave laminate; and the thickness of the first multilayer microwave board is the same as that of the second multilayer microwave board.
11. The phased array transceiver antenna of claim 10, wherein the array structure of the first radiating patch, the second radiating patch, and the upper radiating patch is a sparse array structure.
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| CN201920937351.3U CN210516980U (en) | 2019-06-20 | 2019-06-20 | Microstrip receiving antenna, transmitting antenna and vehicle-mounted phased array antenna |
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| CN201920937351.3U CN210516980U (en) | 2019-06-20 | 2019-06-20 | Microstrip receiving antenna, transmitting antenna and vehicle-mounted phased array antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311211A (en) * | 2019-06-20 | 2019-10-08 | 成都天锐星通科技有限公司 | A kind of Microstrip Receiving Antenna, transmitting antenna and vehicle-mounted phased array antenna |
| CN111786133A (en) * | 2020-08-07 | 2020-10-16 | 成都天锐星通科技有限公司 | Transmit-receive common-caliber phased array antenna |
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2019
- 2019-06-20 CN CN201920937351.3U patent/CN210516980U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110311211A (en) * | 2019-06-20 | 2019-10-08 | 成都天锐星通科技有限公司 | A kind of Microstrip Receiving Antenna, transmitting antenna and vehicle-mounted phased array antenna |
| CN111786133A (en) * | 2020-08-07 | 2020-10-16 | 成都天锐星通科技有限公司 | Transmit-receive common-caliber phased array antenna |
| CN111786133B (en) * | 2020-08-07 | 2021-11-30 | 成都天锐星通科技有限公司 | Transmit-receive common-caliber phased array antenna |
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