CN116435763A - Millimeter wave super-surface radar receiving antenna, transmitting antenna and receiving and transmitting integrated antenna - Google Patents
Millimeter wave super-surface radar receiving antenna, transmitting antenna and receiving and transmitting integrated antenna Download PDFInfo
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- CN116435763A CN116435763A CN202310127847.5A CN202310127847A CN116435763A CN 116435763 A CN116435763 A CN 116435763A CN 202310127847 A CN202310127847 A CN 202310127847A CN 116435763 A CN116435763 A CN 116435763A
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- H—ELECTRICITY
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- 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
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- 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
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- 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
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- H—ELECTRICITY
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- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/526—Electromagnetic shields
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- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
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- H—ELECTRICITY
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Abstract
The invention discloses a millimeter wave super-surface radar receiving antenna, a transmitting antenna and a receiving and transmitting integrated antenna, which sequentially comprise an upper medium substrate, a first metal plate, a prepreg, a lower medium substrate and a second metal plate from top to bottom, wherein the upper surface of the upper medium substrate is provided with a receiving super-surface structure, a receiving feed gap is etched on the first metal floor, a receiving strip feeder is arranged between the prepreg and the lower medium substrate, and a metal through hole is arranged between the upper surface of the upper medium substrate and the second metal plate around the receiving super-surface structure, the receiving feed gap and the receiving strip feeder to form a self-shielding cavity of the receiving antenna. The millimeter wave radar transceiver antenna has the characteristics of small size, low section, compact structure and simple processing, and can ensure that the millimeter wave radar transceiver antenna realizes high transceiver isolation and higher harmonic suppression.
Description
Technical Field
The invention relates to the field of millimeter wave communication, in particular to a millimeter wave super-surface radar receiving antenna, a transmitting antenna and a receiving and transmitting integrated antenna.
Background
With the development of millimeter wave technology, the research design and equipment of the phased array antenna are greatly promoted by the special functions of the phased array antenna, such as simultaneous air searching, identification and tracking, high power, high data and environmental condition resistance. Today, commercial applications in vehicle-mounted, early warning radar, wireless communication, radio frequency identification, etc. are increasingly demanding for antennas, especially for flexible control of antenna patterns.
However, the high cost of the phased array antenna severely restricts the application range, and the low cost design method of the active phased array antenna is an important direction of the development of the electronic scanning antenna and is also an important precondition for forming a series of products of the phased array antenna. In addition, the operating frequency band of active phased array antennas is typically the X-band to millimeter wave band. The higher the operating frequency, the smaller the area of each radiating element and the higher the integration requirements. The traditional design method for simply assembling each subsystem module can not meet the requirements of array surface arrangement, maintenance and the like, and the high-integration integrated design technology is needed to realize the aims of light weight, expandability and low cost of the active phased array antenna.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks and disadvantages of the prior art, the present invention is directed to providing a millimeter wave super-surface radar receiving antenna, a transmitting antenna and a transceiver integrated antenna. The millimeter wave radar transceiver antenna has the characteristics of small size, low section, compact structure and simple processing, and can ensure that the millimeter wave radar transceiver antenna realizes high transceiver isolation and higher harmonic suppression.
The aim of the invention is achieved by the following technical scheme:
the millimeter wave super-surface radar receiving antenna sequentially comprises an upper medium substrate, a first metal plate, a prepreg, a lower medium substrate and a second metal plate from top to bottom, wherein the upper surface of the upper medium substrate is provided with a receiving super-surface structure, a receiving feed gap is etched on the first metal floor, a receiving strip feeder is arranged between the prepreg and the lower medium substrate, a metal through hole is arranged between the upper surface of the upper medium substrate and the second metal plate around the receiving super-surface structure, the receiving feed gap and the receiving strip feeder, and a self-shielding cavity of the receiving antenna is formed.
Further, the receiving super-surface structure is formed by arranging M multiplied by N receiving annular patch units in a central symmetry period.
Further, the receiving feed slot is an H-shaped slot and is excited by the receiving strip feeder line, and the receiving super-surface structure above the receiving feed slot is further excited to generate linear polarized radiation.
Further, the receiving strip feed is a single ended strip feed.
The millimeter wave super-surface radar transmitting antenna sequentially comprises an upper medium substrate, a first metal plate, a prepreg, a lower medium substrate and a second metal plate from top to bottom, wherein the upper surface of the upper medium substrate is provided with a transmitting super-surface structure, a transmitting feed gap is etched on the first metal floor, a transmitting strip feeder is arranged between the prepreg and the lower medium substrate, the transmitting strip feeder further comprises an open circuit branch, and a metal through hole is arranged between the upper surface of the upper medium substrate and the second metal plate around the transmitting super-surface structure, the transmitting feed gap and the transmitting strip feeder to form a self-shielding cavity of the transmitting antenna.
Further, the transmitting super-surface structure comprises M multiplied by N transmitting annular patch units which are arranged in a central symmetry period, and each transmitting annular patch unit is internally provided with a square patch.
Further, the emission feed gap is an I-shaped gap and is excited by the emission strip-shaped feeder line to further excite the emission super-surface structure to generate linear polarized radiation.
Further, the transmitting strip feed line is a double ended differential feed line.
Further, the open stub suppresses three and five harmonic energies for two quarter wavelength sectors.
Further, one side of the square patch is provided with a row of metal through holes and is positioned in the transmitting annular patch unit.
Furthermore, the I-shaped gap deviates from the center position of the emission super-surface structure, so that five times of harmonic energy can be inhibited.
The utility model provides a millimeter wave super surface radar transceiver integrated antenna of self-shielding, includes receiving antenna and transmitting antenna, receiving antenna and transmitting antenna symmetry set up in the both sides of antenna, and both center lines are perpendicular with the antenna polarization direction, and receiving antenna and transmitting antenna's intermediate position sets up the decoupling structure that suppresses transceiver antenna energy coupling, and the feed point concentrates in antenna bottom central point position, receiving antenna is the millimeter wave super surface radar receiving antenna of any one of claims 1-4 specifically, transmitting antenna is the millimeter wave super surface radar transmitting antenna of any one of claims 5-11 specifically.
Further, the decoupling structure comprises a periodic arrangement of rectangular metal strips, and each rectangular metal strip is internally provided with a grounding metal via hole.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) According to the invention, the self-shielding receiving antenna and the self-shielding transmitting antenna are symmetrically arranged on the two sides of the whole antenna respectively, the central connecting line of the self-shielding receiving antenna and the self-shielding transmitting antenna is perpendicular to the polarization direction of the antenna, and the feeding point is concentrated at the central position of the bottom of the antenna, so that the complexity of a feeding network is avoided, and the easy integration, the symmetry and the compact structure of the receiving and transmitting antenna are ensured.
(2) The invention adopts a simple processing technology of a four-layer PCB, and completely encloses the super-surface structures, the feed gaps and the strip-shaped feeder lines of the receiving antenna and the transmitting antenna respectively by arranging the self-shielding cavity, thereby avoiding the arrangement of blind holes and buried holes which are difficult to realize while inhibiting the energy leakage of the strip-shaped feeder lines, and realizing the independence of the receiving antenna and the transmitting antenna per se
(3) The invention adopts the annular super-surface structure as the radiator, so that the occupied area of the super-surface antenna and the self-shielding cavity is reduced.
(4) The invention reduces the area occupied by the feed network and the self-shielding cavity by reducing the wiring of the strip feed line and adopting H-shaped and I-shaped feed gaps.
(5) The invention realizes energy suppression of third and fifth harmonic waves by arranging 2 sector open-circuit branches with quarter wavelength on the strip feed line of the self-shielding transmitting antenna.
(6) The invention further improves the five harmonic energy suppression of the transmitting antenna by providing an asymmetric feed slot offset from the center of the radiating patch in the first metal plate of the self-shielded transmitting antenna.
(7) According to the invention, the two rows of metal through holes which are bridged on the upper surface of the upper dielectric plate and the second metal plate are arranged in the annular patch of the self-shielding transmitting antenna, so that the cavity size of the feed network is reduced, the third harmonic energy suppression of the transmitting antenna is further improved, and meanwhile, the impedance matching characteristic of the antenna is improved.
(8) According to the invention, the square patch is arranged in the square patch of the self-shielding transmitting antenna, so that the impedance matching characteristic of the antenna is improved.
(9) The invention adopts the decoupling structure which is periodically arranged to realize the high isolation of the single port and the differential port of the receiving and transmitting antenna.
(10) The invention has the characteristics of small size, low section, compact structure, simple processing and low cost, thereby realizing mass production.
Drawings
Fig. 1 is a schematic three-dimensional view of the structure of a self-shielding millimeter wave radar transceiver integrated antenna in embodiment 1 of the present invention;
fig. 2 (a) is a top view of a self-shielding millimeter wave radar transceiver integrated antenna in embodiment 1 of the present invention;
fig. 2 (b) is a side view of the self-shielding millimeter wave radar transceiver integrated antenna in embodiment 1 of the present invention;
fig. 3 (a) is a top view and a schematic size diagram of an upper dielectric plate of a self-shielding millimeter wave radar transceiver integrated antenna in embodiment 1 of the present invention;
fig. 3 (b) is a top view and a schematic dimension of a first layer metal plate of the self-shielding millimeter wave radar transceiver integrated antenna in embodiment 1 of the present invention;
fig. 3 (c) is a schematic diagram and a schematic dimension diagram of a strip feeder of a self-shielding millimeter wave radar transceiver integrated antenna in embodiment 1 of the present invention;
fig. 4 is a diagram showing the result of the S parameter of the self-shielding millimeter wave radar transceiver integrated antenna in embodiment 1 of the present invention;
fig. 5 is a radiation pattern of a receiving antenna in embodiment 1 of the present invention;
fig. 6 is a radiation pattern of a transmitting antenna in embodiment 1 of the present invention;
fig. 7 is a graph showing the result of the higher harmonic efficiency of the transmitting antenna in embodiment 1 of the present invention;
fig. 8 is a gain result diagram of the self-shielding millimeter wave radar transceiver integrated antenna in embodiment 1 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples, but embodiments of the present invention are not limited thereto.
Examples
As shown in fig. 1, fig. 2 (a) and fig. 2 (b), a self-shielding millimeter wave super-surface radar transceiver integrated antenna adopts a multilayer PCB processing technology, and the whole antenna adopts Roger5880 as a dielectric substrate. The dielectric substrate has a dielectric constant epsilon r Is [1,10.2 ]]The thickness is 0.01λ,0.3λ]The thickness of the metal floor is [0.005 lambda, 0.1 lambda ]]Where λ is the free space wavelength.
The self-shielding receiving antenna 6 and the self-shielding transmitting antenna 7 are respectively and symmetrically arranged at two sides of the whole antenna, the central connecting line of the self-shielding receiving antenna 6 and the self-shielding transmitting antenna 7 is perpendicular to the polarization direction of the antenna, and the feeding point is concentrated at the central position of the bottom of the antenna; the decoupling structure 16 for suppressing the energy coupling of the transceiver antenna is arranged in the center of the two.
The coupling structure is composed of square metal patches and grounding metal vias which are arranged on the upper dielectric substrate 1 in a periodic arrangement, and effectively inhibits energy coupling between a single port of the self-shielding receiving antenna 6 and a differential port of the self-shielding transmitting antenna 7.
In this embodiment, the coupling structure includes 3*2 square metal patches, each of which is provided with a ground metal via.
Further, as shown in fig. 3 (a), fig. 3 (b) and fig. 3 (c), the self-shielding receiving antenna sequentially includes, from top to bottom, an upper dielectric substrate 1, a first metal plate 2, a prepreg 3, a lower dielectric substrate 4 and a second metal plate 5, a receiving super-surface structure 8 is disposed on the upper surface of the upper dielectric substrate 1, a receiving feed slot 10 is etched on the first metal floor 2, a receiving strip feed 12 is disposed between the prepreg 3 and the lower dielectric substrate 4, and a metal through hole is disposed between the upper surface of the upper dielectric substrate 1 and the second metal plate 5 around the receiving super-surface structure 8, the receiving feed slot 10 and the receiving strip feed 12, so as to form a self-shielding cavity 14 of the receiving antenna.
In this embodiment, the receiving super-surface structure is formed by arranging m×n receiving annular patch units in a central symmetry period. The annular design increases the surface current path of the super-surface structure, and effectively reduces the size of the super-surface structure; the annular patch unit is not limited to a square annular structure, and can also be an annular structure with a parallelogram, a trapezoid or a diamond.
Further, in this embodiment, the receiving annular patch unit is square annular, and the receiving super-surface structure includes 2*1 square annular patch units.
Further, in this embodiment, the receiving feed slot 10 is an H-shaped slot, etched on the first metal plate, and excited by the strip feeder, so as to excite the upper annular super-surface structure to generate linearly polarized radiation; the receiving feed gap is one, the shape of the feed gap is not limited, and the feed gap can be H-shaped, U-shaped, I-shaped or transverse seams and the like.
The receiving strip feeder of the self-shielding receiving antenna 6 adopts a strip line form and is a single-ended strip feeder; the strip feeder line is transited to the strip feeder line from the grounded coplanar waveguide 17 arranged at the bottom of the antenna through a metal via hole, and is routed to be vertical to an H-shaped feed gap by adopting modes such as a straight line, an arc or a 45-degree angle and the like and excited; the single-ended strip feed of the self-shielded receiving antenna achieves impedance matching adjustment through quarter-wavelength impedance transformation.
In this embodiment, the millimeter wave super-surface radar receiving antenna adopts a four-layer board PCB simple processing technology, and the self-shielding cavity of the receiving antenna is formed by a plurality of metal through holes between the upper surface of the upper medium substrate and the second metal plate, so that the annular super-surface structure, the feed slot and the strip feeder are completely enclosed, the energy leakage of the strip feeder is restrained, meanwhile, the blind holes and buried holes which are difficult to realize are avoided, and the independence of the receiving antenna is realized.
The utility model provides a millimeter wave super surface radar transmitting antenna of self-shielding, includes upper dielectric substrate 1, first metal sheet 2, prepreg 3, lower floor's dielectric substrate 4 and second metal sheet 5 from top to bottom in proper order, upper dielectric substrate 1 upper surface sets up and launches super surface structure 9, etching on the first metal floor 2 launches feed gap 11, set up between prepreg 3 and the lower floor's dielectric substrate 4 and launch banded feeder 13 upper surface and second metal sheet 5 between around launching super surface structure 9, transmission feed gap 11 and launching banded feeder 13 and set up the metal through-hole, form transmitting antenna's self-shielding chamber 15.
Further, in this embodiment, the transmitting super-surface structure includes m×n transmitting annular patch units arranged periodically in central symmetry, each transmitting annular patch unit is provided with a square patch, the transmitting annular patch unit is preferably a square annular patch, the annular design increases the surface current path of the super-surface structure, effectively reduces the size of the super-surface structure, and the square patch effectively improves the impedance characteristic of the antenna.
The metal patch is not limited to square, but may be parallelogram, trapezoid, diamond or the like subjected to miniaturization treatment.
Further, the emission feed gap 11 is an i-shaped feed gap and is arranged on the first metal floor to excite the emission super-surface structure 9 to generate linear polarization radiation; the emission feed gap is one, the feed gap is not limited in shape, and the emission feed gap can be I-shaped, H-shaped, U-shaped, transverse slits or the like. In this embodiment 1, an asymmetric "I" shaped feed slot is etched at a position offset from the center of the transmitting super surface structure 9.
Further, the emission feeder adopts a strip line mode, the feed point is a grounded coplanar waveguide arranged in the center of the second metal plate, the metal via hole is used for transiting from the grounded coplanar waveguide to the strip feeder, and the mode of straight line, circular arc or 45-degree angle and the like is adopted for routing to be perpendicular to the feed gap and excitation; the strip feeder is provided with 2 quarter-wavelength fan-shaped open-circuit branches, and triple and quintic harmonic energy is effectively restrained.
Further, two rows of metal through holes 18 which are connected with the upper surface of the upper dielectric plate and the second metal plate in a crossing mode are arranged in the square ring patch, the metal through holes are arranged on the upper side and the lower side of the two square patches, the size of a self-shielding cavity of the transmitting antenna is reduced, and the suppression of third harmonic energy is further achieved.
The H-shaped feed gap is etched at a position deviating from the centers of the square annular patch and the square patch, so that five times of harmonic energy can be further suppressed.
The transmitting antenna provided by the embodiment of the invention adopts a simple processing technology of a four-layer board PCB, the self-shielding cavity of the transmitting antenna is formed by a plurality of metal through holes between the upper surface of the upper medium substrate and the second metal plate, the transmitting super-surface structure, the transmitting feed gap and the transmitting strip feeder are completely enclosed, the energy leakage of the transmitting strip feeder is restrained, meanwhile, the arrangement of blind holes and buried holes which are difficult to realize is avoided, and the independence of the transmitting antenna is realized.
The specific dimensions of the self-shielding millimeter wave radar receiving and transmitting integrated antenna are as follows:
height H of annular super-surface radiating patch for self-shielded receiving antenna 1 The square ring patch width rw1 of the receiving antenna is 2.2mm, the length rl1 is 1.65mm, the ring width rw3 is 0.15mm, the rw4 is 0.175mm, and the square ring unit edge spacing rg1 is 0.1mm; the length rl2 and width rw2 of the self-shielded cavity 14 of the receiving antenna are dividedThe metal through holes are respectively 3.9mm and 2.7mm, the diameter of each metal through hole is 0.15mm, and the center-to-center distance of each metal through hole is 0.3mm; the length rl3 of the H-shaped feed gap etched on the first layer metal plate 2 is 2.2mm, rl4 is 1.3mm, and the gap width rg2 is 0.2mm; the single-ended strip feed line has a step impedance transformation width rw5 of 0.19mm, rw6 of 0.4mm, rw7 of 0.1mm, rw8 of 0.18mm, a length rl5 of 0.6mm, and rl6 of 0.34mm.
Height H of the toroidal and square super-surface radiating patch for self-shielded transmitting antenna 7 1 0.787mm, wherein square ring patch length tl1 is 1.66mm, width tw1 is 2.17mm, ring widths tw4 and tw5 are 0.1mm, square ring unit edge spacing tg1 is 0.2mm, square ring patch length tl2 is 1mm, width tw2 is 1.77mm, square patch and annular patch edge spacing tg2 is 0.1mm; the length tl3 and the width tw3 of the self-shielding cavity of the transmitting antenna are 3.9mm and 2.7mm respectively, the metal via hole has an drift diameter of 0.15mm, and the center-to-center distance of the metal via hole is 0.3mm; the length tl4 of the H-shaped feed gap 11 etched on the first layer metal plate 2 is 1.57mm, the tl5 is 1.37mm, the tl6 is 0.8mm, the gap width tg6 is 0.1mm, and the distance between two rows of metal through holes is 2.95mm; the stepped impedance transition width tw6 of the strip feed line is 0.1mm, tw7 is 0.23mm, and the open stub lengths tl8, tl9 are 0.46mm,0.29mm, respectively.
For the decoupling structure 16 for suppressing the energy coupling of the transceiver antenna, the length el of the periodically arranged metal patches is 2.47mm, the width ew is 0.2mm, the edge pitches eg1 and eg2 are 0.1mm, and the path of the ground metal vias is 0.1mm.
As shown in fig. 4, the self-shielding millimeter wave super-surface radar transceiver antenna has the following working frequency bands: the reflection coefficient of all ports in the band is lower than-14 dB at 24-26GHz, the isolation between a single port of the in-band receiving antenna and a differential port of the transmitting antenna is greater than 25dB, and the high receiving and transmitting isolation is ensured while the structure is compact. As shown in fig. 8, the gains of both the self-shielded receive antenna and the self-shielded transmit antenna are 5.3-5.6dBi and 5.0-5.5dBi, respectively; as can be seen from fig. 5 and 6, the E-plane patterns of the self-shielded receiving antenna and the self-shielded transmitting antenna are symmetrical well; as shown in fig. 7 and 8, the energy suppression of the transmitting antenna at the third and fifth harmonics is greater than 32.5dB and 12dB, respectively.
The embodiments described above are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the embodiments described above, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principles of the present invention should be made in the equivalent manner, and are included in the scope of the present invention.
Claims (13)
1. The millimeter wave super-surface radar receiving antenna is characterized by sequentially comprising an upper medium substrate, a first metal plate, a prepreg, a lower medium substrate and a second metal plate from top to bottom, wherein the upper surface of the upper medium substrate is provided with a receiving super-surface structure, a receiving feed gap is etched on the first metal floor, a receiving strip feeder is arranged between the prepreg and the lower medium substrate, and a metal through hole is arranged between the upper surface of the upper medium substrate and the second metal plate around the receiving super-surface structure, the receiving feed gap and the receiving strip feeder to form a self-shielding cavity of the receiving antenna.
2. The millimeter wave super-surface radar receiving antenna according to claim 1, wherein the receiving super-surface structure is constituted by m×n receiving annular patch units arranged in a central symmetrical cycle.
3. The millimeter wave super-surface radar receiving antenna of claim 1, wherein said receiving feed slot is an H-slot, excited by a receiving strip feed, further exciting an upper receiving super-surface structure to produce linearly polarized radiation.
4. A millimeter wave super surface radar receiving antenna according to any one of claims 1-3, characterised in that said receiving strip feed is a single ended strip feed.
5. The millimeter wave super-surface radar transmitting antenna is characterized by sequentially comprising an upper medium substrate, a first metal plate, a prepreg, a lower medium substrate and a second metal plate from top to bottom, wherein the upper surface of the upper medium substrate is provided with a transmitting super-surface structure, a transmitting feed gap is etched on the first metal floor, a transmitting strip feeder is arranged between the prepreg and the lower medium substrate, the transmitting strip feeder further comprises an open circuit branch, and a metal through hole is arranged between the upper surface of the upper medium substrate and the second metal plate around the transmitting super-surface structure, the transmitting feed gap and the transmitting strip feeder to form a self-shielding cavity of the transmitting antenna.
6. The millimeter wave super-surface radar transmitting antenna according to claim 5, wherein said transmitting super-surface structure comprises M x N transmitting annular patch units arranged in a central symmetry period, and each transmitting annular patch unit is provided with a square patch therein.
7. The millimeter wave super-surface radar transmitting antenna of claim 5, wherein said transmitting feed slot is an i-slot, excited by said transmitting strip feed line, further exciting the transmitting super-surface structure to produce linearly polarized radiation.
8. The millimeter wave super surface radar transmitting antenna according to claim 5, wherein said transmitting strip feed line is a double ended differential feed line.
9. The millimeter wave super-surface radar transmitting antenna according to claim 5, characterized in that said open stubs suppress three and five harmonic energies for two quarter wavelength sectors.
10. The millimeter wave super surface radar transmitting antenna according to claim 6, wherein one side of said square patch is provided with a row of metal vias and is located in a transmitting annular patch unit.
11. The millimeter wave super-surface radar transmitting antenna according to claim 7, wherein the i-shaped slot is offset from a central position of the transmitting super-surface structure, so as to suppress five times of harmonic energy.
12. The millimeter wave super-surface radar receiving and transmitting integrated antenna is characterized by comprising a receiving antenna and a transmitting antenna, wherein the receiving antenna and the transmitting antenna are symmetrically arranged on two sides of the antenna, a central connecting line of the receiving antenna and the transmitting antenna is perpendicular to the polarization direction of the antenna, a decoupling structure for inhibiting energy coupling of the receiving and transmitting antenna is arranged at the middle position of the receiving antenna and the transmitting antenna, a feeding point is concentrated at the central position of the bottom of the antenna, the receiving antenna is specifically the millimeter wave super-surface radar receiving antenna according to any one of claims 1-4, and the transmitting antenna is specifically the millimeter wave super-surface radar transmitting antenna according to any one of claims 5-11.
13. The integrated transceiver antenna of claim 12, wherein the decoupling structure comprises a periodic arrangement of rectangular metal strips, each rectangular metal strip having a ground metal via disposed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310127847.5A CN116435763A (en) | 2023-02-17 | 2023-02-17 | Millimeter wave super-surface radar receiving antenna, transmitting antenna and receiving and transmitting integrated antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310127847.5A CN116435763A (en) | 2023-02-17 | 2023-02-17 | Millimeter wave super-surface radar receiving antenna, transmitting antenna and receiving and transmitting integrated antenna |
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| CN116435763A true CN116435763A (en) | 2023-07-14 |
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| CN202310127847.5A Pending CN116435763A (en) | 2023-02-17 | 2023-02-17 | Millimeter wave super-surface radar receiving antenna, transmitting antenna and receiving and transmitting integrated antenna |
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| CN (1) | CN116435763A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116845586A (en) * | 2023-08-10 | 2023-10-03 | 成都辰星迅联科技有限公司 | Broadband wide-angle self-generating circularly polarized VICTS antenna |
| CN117060065A (en) * | 2023-09-13 | 2023-11-14 | 南京林业大学 | Millimeter wave super-surface antenna |
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2023
- 2023-02-17 CN CN202310127847.5A patent/CN116435763A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116845586A (en) * | 2023-08-10 | 2023-10-03 | 成都辰星迅联科技有限公司 | Broadband wide-angle self-generating circularly polarized VICTS antenna |
| CN116845586B (en) * | 2023-08-10 | 2024-03-01 | 成都辰星迅联科技有限公司 | Broadband wide-angle self-generating circularly polarized VICTS antenna |
| CN117060065A (en) * | 2023-09-13 | 2023-11-14 | 南京林业大学 | Millimeter wave super-surface antenna |
| CN117060065B (en) * | 2023-09-13 | 2024-05-17 | 南京林业大学 | Millimeter wave super-surface antenna |
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