CN113794061B - Ultra-wideband single-layer slot array antenna based on slot gap waveguide - Google Patents
Ultra-wideband single-layer slot array antenna based on slot gap waveguide Download PDFInfo
- Publication number
- CN113794061B CN113794061B CN202111094451.2A CN202111094451A CN113794061B CN 113794061 B CN113794061 B CN 113794061B CN 202111094451 A CN202111094451 A CN 202111094451A CN 113794061 B CN113794061 B CN 113794061B
- Authority
- CN
- China
- Prior art keywords
- metal
- gap waveguide
- slot
- metal column
- groove
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/25—Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems
Landscapes
- Waveguide Aerials (AREA)
Abstract
The invention discloses an ultra-wideband single-layer slot array antenna based on a slot gap waveguide, and relates to the technical field of millimeter wave ultra-wideband antennas. Array antenna includes the metal substrate, the upper surface of metal substrate forms slot gap waveguide and ridge gap waveguide, just the upper surface of metal substrate outside slot gap waveguide and the ridge gap waveguide forms has the periodic metal pin of a plurality of, the upper surface of metal pin covers there is the upper metal sheet, the lower surface of upper metal sheet is formed with a plurality of groups U type groove, with U type groove is corresponding the size of metal column is less than the U type groove outside the size of metal pin. The array antenna has the advantages of ultra wide band, simple structure, compact array unit, loss performance superior to that of the traditional microstrip device and the like.
Description
Technical Field
The invention relates to the technical field of millimeter wave ultra-wideband antennas, in particular to an ultra-wideband single-layer slot array antenna based on slot gap waveguides.
Background
In recent years, research into millimeter wave antenna technology has attracted increasing attention. The millimeter wave application has the advantages of wide working bandwidth, narrow beam width under a certain caliber, high resolution, small influence of weather on propagation, easy miniaturization and the like. However, in the millimeter wave band, the more serious surface wave effect and the higher dielectric loss cause troubles in the design of the high performance antenna. The availability of conventional transmission lines such as microstrip lines, strip lines is greatly reduced, and thus there is a demand for finding a transmission line with good performance in the millimeter wave band. A new type of transmission line based on electromagnetic bandgap structures and air-filling, Gap Waveguides (GWG) has emerged. The gap waveguide is filled with air, and electromagnetic waves are transmitted in the air, so that the gap waveguide has low-loss transmission performance, and the problems of large radiation loss and medium loss of common microwave transmission lines such as microstrip lines, strip lines or substrate integrated waveguides integrated with media in millimeter wave bands are solved. Meanwhile, unlike a rectangular cavity waveguide, the side walls of the gap waveguide are not simple closed structures formed by metal walls, but electromagnetic band gap structures are formed by periodically arranging metal pillars, thereby blocking the propagation of electromagnetic waves. Air gaps with certain heights exist between the electromagnetic band gap structures on the two sides and the top metal plate, so that strict electric connection is not needed in processing and assembling, and the processing difficulty is greatly reduced. Therefore, the technology is simpler in mechanical assembly and has great advantages in the millimeter wave frequency range. In designing the gap waveguide element, the periodic electromagnetic bandgap structure should be designed to cover a specific band stop.
In various radar or communication systems, an antenna is used as an important front-end device, and the main function of the antenna is to realize energy conversion of guided electromagnetic waves in a circuit and radio waves in space. In applications requiring planar or low profile, high gain antennas are typically implemented with microstrip arrays or waveguide slot arrays. In the millimeter wave band, the waveguide slot array antenna is more advantageous. The waveguide slot antenna array generally comprises a plurality of slots formed in a rectangular metal waveguide wall, and has the advantages of easily controlled aperture distribution, easily realized narrow beam width, low side lobe level, low loss, large capacity, compact and firm structure, easy integration and the like. The waveguide slot array antenna has the advantages of compact structure, high radiation efficiency, large power capacity and the like, and is an important antenna form.
Disclosure of Invention
The invention aims to solve the technical problem of how to provide an ultra wide band single-layer slot array antenna which has the advantages of ultra wide band, simple structure, compact array unit and better loss performance than the traditional microstrip device.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides an ultra wide band individual layer slot array antenna based on slot gap waveguide which characterized in that: including the metal soleplate, the upper surface of metal soleplate is formed with slot gap waveguide and ridge gap waveguide, just the upper surface of metal soleplate outside slot gap waveguide and ridge gap waveguide is formed with the periodic metal pin of a plurality of, the upper surface of metal pin covers there is upper metal sheet, the lower surface of upper metal sheet is formed with a plurality of groups U type grooves, with U type groove is corresponding the size of metal column is less than the U type groove outside the size of metal pin, through jointly slot gap waveguide and ridge gap waveguide design feed network structure, through the size design different resonant frequency's of adjustment and the corresponding metal pin in U type groove resonant frequency's of U type groove, through the U type groove of different length on upper metal sheet, thereby produce a plurality of resonance points and realize array antenna's ultra wide band characteristic.
The further technical scheme is as follows: digging a groove body in the middle of the metal bottom plate to form a first groove gap waveguide, wherein the first groove gap waveguide is transversely arranged, one end of the first groove gap waveguide is positioned at the outer side of the array antenna to form a waveguide input port, the other end of the groove gap waveguide extends inwards to be communicated with a ridge gap waveguide formed longitudinally, the ridge gap waveguide is divided into two sections by the groove gap waveguide, a metal transition ridge is formed in each section of the ridge gap waveguide, the width of the metal transition ridge is smaller than that of the ridge gap waveguide, the outer side end of the metal transition ridge extends into a second inner groove gap waveguide arranged transversely, the second inner groove gap waveguide is positioned between the metal pins, and the two ends of the second inner groove gap waveguide do not extend to the outer side of the metal bottom plate.
The further technical scheme is as follows: the metal pins comprise a plurality of periodic first pins, a plurality of groups of metal columns with the height smaller than that of the first pins are formed between the first pins, each group of metal columns comprise a first metal column, a second metal column and a third metal column, the first metal column is positioned on the outer side of the second inner groove gap waveguide in each group of metal columns, and the second metal column and the third metal column are positioned on the inner side of the second inner groove gap waveguide in each group of metal columns.
Preferably, four sets of metal posts are provided, two sets of metal posts being located on one side of the ridge gap waveguide and the other two sets being located on the other side of the ridge gap waveguide.
The further technical scheme is as follows: the first metal column, the second metal column and the third metal column are all cuboid, the cross sections of the second metal column and the third metal column are the same, the heights of the second metal column and the third metal column are the same or different, and the cross section area of the first metal column is smaller than that of the second metal column.
Preferably: the first metal posts have a length, width and height of 1mm × 1mm × 1.2mm, the second metal posts have a length, width and height of 1.2mm × 1.2mm × 1.2mm, and the third metal posts have a length, width and height of 1.2mm × 1.2mm × 1.3 mm.
The further technical scheme is as follows: a first pin is arranged between the second metal column and the third metal column.
The further technical scheme is as follows: each group of U-shaped grooves comprises a first U-shaped groove and a second U-shaped groove, the opening of the first U-shaped groove is opposite to the opening of the second U-shaped groove, the first U-shaped groove is semi-surrounded by the first metal column in the up-down projection direction, and the second U-shaped groove is semi-surrounded by the second metal column and the third metal column in the up-down projection direction.
The further technical scheme is as follows: the inner side end of the first U-shaped groove and the inner side end of the second U-shaped groove are located above the second groove gap waveguide and are partially overlapped with the second groove gap waveguide in the up-down projection direction.
Preferably: three rows of metal pins are formed on the outer side of the first metal column.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the array antenna is characterized in that a feed network structure is designed by combining a slot gap waveguide and a ridge gap waveguide, resonant cavities with different resonant frequencies are designed by adjusting the sizes of metal pins and metal columns, and a plurality of resonant points are generated by etching U-shaped slots with different lengths on an upper layer metal plate, so that the ultra-wideband characteristic of the array antenna is realized. The array antenna has the advantages of ultra wide band, simple structure, compact array unit, loss performance superior to that of the traditional microstrip device and the like.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic perspective view of an array antenna according to an embodiment of the present invention;
fig. 2 is a schematic side view of an array antenna according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the antenna according to the embodiment of the present invention, in which the upper metal plate is removed;
fig. 4 is a schematic bottom view of an upper metal plate of the antenna according to the embodiment of the present invention;
fig. 5 is a schematic top perspective view of an antenna according to an embodiment of the present invention;
fig. 6 is a schematic top view of the antenna according to the embodiment of the present invention with the upper metal plate removed;
fig. 7 is a schematic bottom view of an upper metal plate of the antenna according to the embodiment of the present invention;
fig. 8 is a schematic diagram of a simulation result of S-parameters of the antenna according to the embodiment of the present invention;
wherein: 1. a metal base plate; 2. a ridge gap waveguide; 3. an upper metal plate; 4. a second U-shaped groove; 5. a first pin; 6. a first slot-gap waveguide; 7. a waveguide input port; 8. a metal transition ridge; 9. a second inner slot gap waveguide; 10. a first U-shaped groove; 11. a first metal pillar; 12. a second metal pillar; 13. and a third metal pillar.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and it will be appreciated by those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the present invention and that the present invention is not limited by the specific embodiments disclosed below.
As shown in fig. 1-7, an embodiment of the present invention discloses an ultra-wideband single-layer slot array antenna based on a slot gap waveguide, which includes a metal base plate 1, wherein a slot gap waveguide and a ridge gap waveguide 2 are formed on an upper surface of the metal base plate 1, and a plurality of periodic metal pins are formed on an upper surface of the metal base plate 1 outside the slot gap waveguide and the ridge gap waveguide 2; the upper surface of metal pin covers there is upper metal sheet 3, the lower surface of upper metal sheet 3 is formed with a plurality of groups U type grooves, with U type groove is corresponding the size of metal column is less than the size of the first pin 5 in the U type groove outside, through uniting slot gap waveguide and ridge gap waveguide 2 design feed network structure, through the size design different resonant frequency's of adjustment and the corresponding metal column in U type groove resonant cavity, through the U type groove of different length on upper metal sheet 3, thereby produce a plurality of resonance points and realize array antenna's ultra wide band characteristic.
In a possible embodiment, the millimeter wave ultra wide band single-layer array antenna based on the slot gap waveguide provided in the embodiment of the present invention feeds through the slot gap waveguide, a slot body is dug out in the middle of the thicker metal bottom plate 1 at the bottom to form a first slot gap waveguide 6, and the dug-out slot includes a metal slot at the bottom and an air slot above the metal slot, and the shape of the dug-out slot is similar to that of a conventional waveguide; the first slot gap waveguide 6 is transversely arranged, one end of the first slot gap waveguide 6 is positioned at the outer side of the array antenna to form a waveguide input port 7, the other end of the first slot gap waveguide 6 extends inwards to be communicated with a longitudinally formed ridge gap waveguide 2, the ridge gap waveguide 2 is divided into two sections by the first slot gap waveguide 6, and a metal transition ridge 8 is formed in each section of the ridge gap waveguide 2; the width of the metal transition ridge 8 is smaller than that of the ridge gap waveguide 2, the outer side ends of the two metal transition ridges 8 respectively extend into a second inner groove gap waveguide 9 which is transversely arranged, the second inner groove gap waveguide 9 is located between the metal pins, and two ends of the second inner groove gap waveguide 9 do not extend to the outer side of the metal base plate 1.
Further, as shown in fig. 2 and 6, the metal pins include a plurality of periodic first pins 5, a plurality of groups of metal columns having a height smaller than that of the first pins 5 are formed between the first pins 5, where each group of metal columns includes a first metal column 11, a second metal column 12, and a third metal column 13; the first metal post 11 of each set of metal posts is located outside the second inner slot-gap waveguide 9, and the second metal post 12 and the third metal post 13 of each set of metal posts are located inside the second inner slot-gap waveguide 9.
It should be noted that the upper metal plate 3 may contact with the upper surface of the metal pin or a certain installation error gap may be formed between the upper metal plate 3 and the upper surface of the metal pin, and the installation error gap may not affect the normal use of the array antenna, and in addition, the upper metal plate 3 may be fixed to the metal base plate 1 by screws.
In one implementation manner of the embodiment of the present invention, a 2 × 2 millimeter wave ultra wide band array antenna is designed, and an antenna unit passes through three metal pillars with different sizes, including: the first metal column 11, the second metal column 12 and the third metal column 13 form three resonant cavities with different frequencies, and the sizes of the metal columns can be set according to actual requirements, and this example is not limited. Illustratively, in one possible embodiment, the metal posts are provided in four sets, two of which are located on one side of the ridge-gap waveguide 2 and two of which are located on the other side of the ridge-gap waveguide 2.
In an embodiment of the present invention, the first metal pillar 11, the second metal pillar 12, and the third metal pillar 13 are rectangular parallelepiped, the cross sections of the second metal pillar 12 and the third metal pillar 13 may be the same or different, and the cross section area of the first metal pillar 11 is smaller than the cross section area of the second metal pillar 12. Further, in one embodiment of the present invention, the length, width and height of the first metal pillar 11 may be 1mm × 1mm × 1.2mm, the length, width and height of the second metal pillar 12 may be 1.2mm × 1.2mm × 1.2mm, and the length, width and height of the third metal pillar 13 may be 1.2mm × 1.2mm × 1.3 mm. It should be noted that specific dimensions of the first metal pillar 11, the second metal pillar 12, and the third metal pillar 13 in the present application may also be other specific dimensions. Preferably, a first pin 5 is disposed between the second metal pillar 12 and the third metal pillar 13. A plurality of resonance points can be formed by designing resonant cavities and coupling gaps with different frequencies, and compared with a traditional waveguide slot antenna, the waveguide slot antenna has a wider working frequency range and a simpler structure.
Further, as shown in fig. 3, 4 and 7, each group of U-shaped grooves includes a first U-shaped groove 10 and a second U-shaped groove 4, an opening of the first U-shaped groove 10 is opposite to an opening of the second U-shaped groove 4, the first U-shaped groove 10 surrounds the first metal column 11 in a vertical projection direction, and the second U-shaped groove 4 surrounds the second metal column 12 and the third metal column 13 in a vertical projection direction. Further, the inner end of the first U-shaped groove 10 and the inner end of the second U-shaped groove 4 are located above the second slot-gap waveguide 9 and partially overlap with the second slot-gap waveguide 9 in the vertical projection direction.
The upper radiation structure consists of a U-shaped groove on the upper layer metal plate and a resonant cavity in a feed network, wherein the feed network is a gap waveguide structure and comprises a band stop structure consisting of a one-to-four transmission line and periodic metal columns.
Periodic metal pins constitute ideal magnetic conductors, the main design parameters including: pin side length w, pin height d, unit period p, and air layer thickness h. Ideally the periodic structure on both sides of the transmission line should be infinitely extended, but in practice three rows of metal pins already prevent the lateral area wave from propagating. Therefore, the antenna is based on the fact that three rows of pin-type EBGs are added on two sides of the slot gap waveguide.
In a possible embodiment, the feed network and the resonant cavity are located in the same layer structure, the antenna structure is simplified, and the ultra-wideband performance can be realized only by using a single-layer structure.
In a possible embodiment, the working frequency band of the millimeter wave ultra-wideband single-layer array antenna based on the slot gap waveguide technology provided by the embodiment of the invention includes 20 GHz-45 GHz, and covers the K frequency band and the Ka frequency band, so that the millimeter wave ultra-wideband single-layer array antenna based on the slot gap waveguide technology provided by the embodiment of the invention can be widely applied to the fields of radar, wireless communication and the like.
Preferably, the first U-shaped groove 10 and the second U-shaped groove 4 have a total length of 2.4 mm and 5.2 mm, respectively. As described above, all the parameters herein are only an exemplary description, and in other possible embodiments, other parameters may also be selected according to actual requirements for the millimeter wave ultra-wideband single-layer array antenna based on the slot-gap waveguide technology provided in the embodiments of the present invention, which is not limited in this embodiment. For effectively proving the effect of the millimeter wave ultra-wideband single-layer array antenna based on the slot-gap waveguide technology provided by the embodiment of the present invention, reference may be made to fig. 8, where fig. 8 is a schematic diagram illustrating a simulation result of S parameters of the millimeter wave ultra-wideband single-layer array antenna based on the slot-gap waveguide technology provided by the embodiment of the present invention.
In the embodiment, the working frequency band (S11 ≦ 10 dB) of the antenna is 20 GHz-45 GHz, the relative bandwidth is 76.9%, and the antenna has ultra-wideband performance.
According to the ultra-wideband millimeter wave array antenna, the sizes of the metal columns are adjusted, resonant cavities with different frequencies are formed in the feed network layer, and then a pair of U-shaped grooves are coupled to form a plurality of resonant frequency points, so that the ultra-wideband millimeter wave array antenna is realized. Compared with the traditional metal waveguide, the transverse size of the slot gap waveguide is small, the array interval can be reduced, and the design of the array antenna with high gain and low side lobe is facilitated. The feed network adopts a mode of mutual transition of the slot gap waveguide and the ridge gap waveguide, the size of the transition waveguide is reasonably designed, and the distribution design of the power distribution network is facilitated.
Claims (5)
1. The utility model provides an ultra wide band individual layer slot array antenna based on slot gap waveguide which characterized in that: comprises a metal bottom plate (1), wherein a groove gap waveguide and a ridge gap waveguide (2) are formed on the upper surface of the metal bottom plate (1), and a plurality of periodic metal pins are formed on the upper surface of the metal bottom plate (1) outside the groove gap waveguide and the ridge gap waveguide (2), the upper surface of the metal pin is covered with an upper layer metal plate (3), a plurality of groups of U-shaped grooves are formed on the upper layer metal plate (3), the size of the metal column corresponding to the U-shaped groove is smaller than that of the first pin (5) at the outer side of the U-shaped groove, a feed network structure is designed by combining the slot gap waveguide and the ridge gap waveguide (2), resonant cavities with different resonant frequencies are designed by adjusting the size of the metal column corresponding to the U-shaped slot, u-shaped grooves with different lengths are arranged on the upper layer metal plate (3) to generate a plurality of resonance points, so that the ultra-wideband characteristic of the array antenna is realized;
digging a groove body in the middle of the metal bottom plate (1) to form a first groove gap waveguide (6), wherein the first groove gap waveguide (6) is transversely arranged, one end of the first groove gap waveguide (6) is positioned at the outer side of the array antenna to form a waveguide input port (7), the other end of the first groove gap waveguide (6) extends inwards to be communicated with a longitudinally formed ridge gap waveguide (2), the ridge gap waveguide (2) is divided into two sections by the first groove gap waveguide (6), a metal transition ridge (8) is formed in each section of the ridge gap waveguide (2), the width of the metal transition ridge (8) is smaller than that of the ridge gap waveguide (2), the outer side end parts of the two metal transition ridges (8) respectively extend into a second transversely arranged groove gap waveguide (9), and the second groove gap waveguide (9) is positioned between the metal pins, and the two ends of the second slot-gap waveguide (9) do not extend to the outer side of the metal baseplate (1);
the metal pins comprise a plurality of periodic first pins (5), a plurality of groups of metal columns with the height smaller than that of the first pins (5) are formed among the first pins (5), each group of metal columns comprise a first metal column (11), a second metal column (12) and a third metal column (13), the first metal column (11) in each group of metal columns is located on the left side of the second slot gap waveguide (9), and the second metal column (12) and the third metal column (13) in each group of metal columns are located on the right side of the second slot gap waveguide (9);
the first metal column (11), the second metal column (12) and the third metal column (13) are integrally in a cuboid shape, the cross sections of the second metal column (12) and the third metal column (13) are the same, and the heights of the second metal column and the third metal column are the same or different, and the cross section area of the first metal column (11) is smaller than that of the second metal column (12);
each group of U-shaped grooves comprises a first U-shaped groove (10) and a second U-shaped groove (4), the opening of the first U-shaped groove (10) is opposite to the opening of the second U-shaped groove (4), the first U-shaped groove (10) semi-surrounds the first metal column (11) in the up-down projection direction, and the second U-shaped groove (4) semi-surrounds the second metal column (12) and the third metal column (13) in the up-down projection direction;
the inner side end of the first U-shaped groove (10) and the inner side end of the second U-shaped groove (4) are located above the second groove gap waveguide (9) and partially overlapped with the second groove gap waveguide (9) in the vertical projection direction.
2. The slot-gap waveguide-based ultra-wideband single-layer slot array antenna of claim 1, wherein: the metal posts are provided with four groups, two of which are positioned on one side of the ridge gap waveguide (2), and the other two of which are positioned on the other side of the ridge gap waveguide (2).
3. The slot-gap waveguide-based ultra-wideband single-layer slot array antenna of claim 1, wherein: the length, width and height of the first metal posts (11) are 1mm × 1mm × 1.2mm, the length, width and height of the second metal posts (12) are 1.2mm × 1.2mm × 1.2mm, and the length, width and height of the third metal posts (13) are 1.2mm × 1.2mm × 1.3 mm.
4. The ultra-wideband single-layer slot array antenna based on a slot-gap waveguide as claimed in claim 1, wherein: a first pin (5) is arranged between the second metal column (12) and the third metal column (13).
5. The slot-gap waveguide-based ultra-wideband single-layer slot array antenna of claim 1, wherein: three rows of first pins (5) are formed on the outer side of the first metal column (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111094451.2A CN113794061B (en) | 2021-09-17 | 2021-09-17 | Ultra-wideband single-layer slot array antenna based on slot gap waveguide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111094451.2A CN113794061B (en) | 2021-09-17 | 2021-09-17 | Ultra-wideband single-layer slot array antenna based on slot gap waveguide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113794061A CN113794061A (en) | 2021-12-14 |
| CN113794061B true CN113794061B (en) | 2022-06-24 |
Family
ID=78878845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111094451.2A Active CN113794061B (en) | 2021-09-17 | 2021-09-17 | Ultra-wideband single-layer slot array antenna based on slot gap waveguide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113794061B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331974A (en) * | 2017-06-05 | 2017-11-07 | 西安电子科技大学 | A kind of circular polarized antenna based on ridge gap waveguide |
| CN112436295A (en) * | 2021-01-28 | 2021-03-02 | 南京理工大学 | Millimeter wave high-gain high-radiation-efficiency slot antenna array based on ridge gap waveguide |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8441404B2 (en) * | 2007-12-18 | 2013-05-14 | Apple Inc. | Feed networks for slot antennas in electronic devices |
| US10879616B2 (en) * | 2018-08-30 | 2020-12-29 | University Of Electronic Science And Technology Of China | Shared-aperture antenna |
| CN113300124B (en) * | 2021-05-19 | 2024-02-02 | 陕西德罗斯电子信息技术有限公司 | Right-hand circularly polarized array antenna based on slot waveguide technology |
-
2021
- 2021-09-17 CN CN202111094451.2A patent/CN113794061B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331974A (en) * | 2017-06-05 | 2017-11-07 | 西安电子科技大学 | A kind of circular polarized antenna based on ridge gap waveguide |
| CN112436295A (en) * | 2021-01-28 | 2021-03-02 | 南京理工大学 | Millimeter wave high-gain high-radiation-efficiency slot antenna array based on ridge gap waveguide |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113794061A (en) | 2021-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8174459B2 (en) | Coplanar antenna unit and coplanar antenna | |
| CN107134658A (en) | One kind miniaturization CTS flat plate array antennas | |
| CN109768358B (en) | Coupling folding substrate integrated waveguide filter | |
| CN108933331B (en) | Archimedes spiral array antenna | |
| CN103178341B (en) | Indoor high-speed communication antenna of wide-beam Q-band millimeter waves | |
| CN114024148A (en) | Gap waveguide feed millimeter wave microstrip antenna unit and array antenna | |
| CN111816968A (en) | Slow wave gap waveguide based on periodic broken nail structure | |
| CN113571893B (en) | High-efficiency filter antenna array and communication equipment | |
| CN111525243A (en) | Microstrip array antenna | |
| CN114335999A (en) | K/Ka waveband dual-band dual-circularly-polarized antenna based on gap waveguide | |
| CN113690584A (en) | Millimeter wave wide-angle scanning phased-array antenna based on substrate integrated ridge waveguide | |
| CN116487875B (en) | Broadband millimeter wave antenna | |
| CN116014454B (en) | Low sidelobe high XPD millimeter wave gap waveguide slot array antenna | |
| CN113794061B (en) | Ultra-wideband single-layer slot array antenna based on slot gap waveguide | |
| CN215896725U (en) | Ultra-wideband single-layer slot array antenna based on slot gap waveguide | |
| CN111952722A (en) | Reflective array antenna unit, reflective array antenna and manufacturing method | |
| CN115458892B (en) | Four-way in-phase unequal power divider based on circular SIW resonant cavity | |
| CN114927869B (en) | Millimeter wave dual-beam dielectric resonator antenna | |
| CN108448260B (en) | Low sidelobe gap standing wave array based on gap waveguide | |
| CN116130979A (en) | Low-sidelobe back cavity slot array antenna | |
| CN215816437U (en) | Antenna array for traffic radar | |
| CN216288989U (en) | Gap waveguide feed millimeter wave microstrip antenna unit and array antenna | |
| CN212257690U (en) | Reflect array antenna unit and reflect array antenna | |
| CN114914683A (en) | Millimeter wave dual-polarized array element with high isolation and array antenna | |
| CN114204285A (en) | Millimeter wave array antenna with high-gain low-sidelobe level characteristics |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |