CN113437534A - Ku/Ka dual-frequency dual-polarization phased-array antenna radiation array - Google Patents
Ku/Ka dual-frequency dual-polarization phased-array antenna radiation array Download PDFInfo
- Publication number
- CN113437534A CN113437534A CN202110746529.8A CN202110746529A CN113437534A CN 113437534 A CN113437534 A CN 113437534A CN 202110746529 A CN202110746529 A CN 202110746529A CN 113437534 A CN113437534 A CN 113437534A
- Authority
- CN
- China
- Prior art keywords
- antenna
- dual
- array
- frequency
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/064—Two dimensional planar arrays using horn or slot aerials
-
- 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
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
Abstract
The invention discloses a Ku/Ka dual-frequency dual-polarization phased-array antenna radiation array, which comprises a plurality of basic units and a plurality of Ka antenna units, wherein each basic unit is internally provided with a Ku antenna unit; the Ku antenna unit is a dual-linear polarization antenna and is arranged in a periodic array mode; the Ka antenna units are single-wire polarized antennas and are arranged in a sparse array mode; the Ka antenna unit is arranged at the junction of the adjacent basic units, and/or the Ka antenna unit is arranged at the outer edge of the antenna radiation array. According to the invention, the radiation array of the phased array antenna is a composite of a Ku periodic array and a Ka sparse array, the radiativity of the Ku frequency band and the radiation of the Ka frequency band cannot influence each other, and meanwhile, the side lobe characteristic of the Ka antenna unit after the Ka antenna unit is sparse is good.
Description
Technical Field
The invention relates to the technical field of phased array antennas, in particular to a Ku/Ka dual-frequency dual-polarization phased array antenna radiation array.
Background
The millimeter wave phased array antenna has the characteristics of narrow wave beam, high gain, fast wave beam scanning and the like, so that the millimeter wave phased array antenna is more and more widely applied to the field of millimeter wave radars, but with the development of radar technology, particularly increasingly prominent requirements on functions of radar anti-interference and the like, new requirements are provided for the antenna technology, and a dual-frequency composite technology and a dual-polarization technology are generated.
Two frequency bands Ku and Ka are frequency bands used more in millimeter wave application, and the common caliber coincidence design of the two frequency bands is also a technology which is proposed in recent years, but the realization of a dual-polarization function on a Ku frequency band antenna is not reported, mainly because:
(1) the frequency of Ka is about twice of the frequency of Ku, according to the antenna scanning principle, if the array antennas of the two frequency bands are combined, four Ka antenna array units need to be arranged in the space range used by one Ku antenna array unit, and the Ku antenna needs to realize the dual-polarization function, so that the feed structure is complex, the occupied space size is larger, and the arrangement cannot be realized at all;
(2) the Ku dual-polarized antenna occupies a larger space, and the arrangement complexity of the Ka antenna array units is increased;
(3) the wider the bandwidth of the antenna unit, the higher the working frequency, and the larger the area of the antenna unit; if a wider bandwidth and a higher operating frequency are to be realized, the structures of the Ku antenna array unit and the Ka antenna array unit will inevitably affect each other, and how to reduce the influence is also a technical difficulty to be overcome.
Disclosure of Invention
The invention aims to overcome one or more defects in the prior art and provides a Ku/Ka dual-frequency dual-polarization phased array antenna radiation array.
The purpose of the invention is realized by the following technical scheme: the Ku/Ka dual-frequency dual-polarization phased-array antenna radiation array comprises a plurality of basic units and a plurality of Ka antenna units, wherein a Ku antenna unit is arranged in each basic unit;
the Ku antenna unit is a dual-linear polarization antenna and is arranged in a periodic array mode;
the Ka antenna units are single-wire polarized antennas and are arranged in a sparse array mode;
the Ka antenna unit is arranged at the junction of the adjacent basic units, and/or the Ka antenna unit is arranged at the outer edge of the antenna radiation array.
Preferably, the number ratio of the Ku antenna elements to the Ka antenna elements is 1: 1.5-2.
Preferably, the number ratio of the Ku antenna elements to the Ka antenna elements is 1: 1.8.
Preferably, the Ku antenna element is a slot coupling feed antenna; and/or the Ka antenna unit is a slot coupling feed antenna.
Preferably, the Ku antenna element and the Ka antenna element are coplanar.
Preferably, the operating frequency of the Ku antenna element is greater than 4GHz, and/or the operating frequency of the Ka antenna element is greater than 4 GHz.
Preferably, the operating frequency relative bandwidth of the Ku antenna element is greater than 25%.
The invention has the beneficial effects that:
(1) according to the invention, the radiation array of the phased array antenna is a composite of a Ku periodic array and a Ka sparse array, the radiativity of the Ku frequency band and the radiation of the Ka frequency band cannot influence each other, and meanwhile, the side lobe characteristic is good after the Ka antenna unit is sparse;
(2) the Ku antenna unit is a dual-polarized antenna and can provide rich polarization information for the system;
(3) the working frequencies of the Ku antenna unit and the Ka antenna unit are both larger than 4GHz, and the Ku antenna unit and the Ka antenna unit have good broadband characteristics;
(4) the Ku antenna unit is a slot coupling feed antenna, so that the antenna bandwidth can be expanded;
(5) the Ka antenna unit is a slot coupling feed antenna, the coupling slot of the Ka antenna unit is equivalent to a filter, and most of energy coupled from a Ku channel can be filtered, so that the isolation between the Ku antenna unit and the Ka antenna unit is improved;
(6) the Ku antenna unit and the Ka antenna unit are coplanar, and are convenient to produce and install.
Drawings
FIG. 1 is a schematic diagram of a radiating array of a Ku/Ka dual-frequency dual-polarized phased array antenna;
fig. 2 is a schematic position diagram of a part of Ku antenna elements and a plurality of Ka antenna elements in an antenna radiation array;
FIG. 3 is a Ku vertical polarization pattern;
FIG. 4 is a Ku horizontal polarization pattern;
FIG. 5 is a Ka pattern;
in the figure, 1-Ku antenna element, 2-Ka antenna element.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 5, the present embodiment provides a Ku/Ka dual-frequency dual-polarized phased array antenna radiation array:
as shown in fig. 1 and fig. 2, the Ku/Ka dual-frequency dual-polarized phased array antenna radiation array includes a plurality of basic units, a plurality of Ku antenna units 1, and a plurality of Ka antenna units 2, and one Ku antenna unit 1 is disposed in each basic unit.
The Ku antenna unit 1 is a dual-linear polarization antenna and is arranged in a periodic array (namely a regular array and a uniform array); the Ka antenna unit 2 is a single-wire polarized antenna and is arranged in a sparse array mode. The Ka antenna units 2 are arranged in a sparse array, and the side lobe characteristic of the antenna is improved.
The Ka antenna unit is arranged at the junction of the adjacent basic units, and/or the Ka antenna unit is arranged at the outer edge of the antenna radiation array.
In this embodiment, the Ku antenna unit 1 is a periodic array, the Ka antenna unit 2 is a sparse array, and the Ku antenna unit 1 is disposed at the junction of the basic units or at the outer edge of the antenna radiation array, so that the radiativity of the Ku and Ka frequency bands cannot be affected by each other, and the common-caliber combination of the dual-polarized Ku antenna unit 1 and the Ka antenna unit 2 is realized.
In some embodiments, the number ratio of the Ku antenna elements 1 to the Ka antenna elements 2 is 1: 1.5-2, for example, the number ratio of the Ku antenna elements 1 to the Ka antenna elements 2 is 1: 1.8. On the premise of ensuring the performance of the antenna radiation array, the number of Ka antenna units 2 is reduced, and the cost is reduced.
In some embodiments, the Ku antenna element 1 is a slot-coupled feed antenna; and/or the Ka antenna unit 2 is a slot coupling feed antenna. The Ku antenna unit 1 is a slot coupling feed antenna, and can expand the bandwidth of the antenna; the Ka antenna unit 2 is a slot coupling feed antenna, the coupling slot of the Ka antenna unit is equivalent to a filter, and most of energy coupled from a Ku channel can be filtered, so that the isolation between the Ku antenna unit 1 and the Ka antenna unit 2 is improved, and the mutual influence between the Ku antenna unit 1 and the Ka antenna unit 2 is avoided.
In some embodiments, the Ku and Ka antenna elements are coplanar, facilitating the manufacture and installation of the antenna.
In some embodiments, the operating frequency of the Ku antenna element is greater than 4GHz, and/or the operating frequency of the Ka antenna element is greater than 4GHz, with good broadband characteristics.
In some embodiments, the operating frequency of the Ku antenna element is greater than 25% of the relative bandwidth, and the bandwidth is wider.
Referring to fig. 3-5, fig. 3 is a Ku vertical polarization directional diagram, the horizontal axis represents the angle of the turntable during directional diagram test, and the vertical axis represents the amplitude value of the directional diagram, and the curves in fig. 3 are an antenna normal directional diagram, a directional diagram of antenna scanning ± 30 °, and a directional diagram of antenna scanning ± 50 °, respectively. Fig. 4 is a Ku horizontal polarization directional diagram, a horizontal axis represents a turntable angle when the directional diagram is tested, a vertical axis represents an amplitude value of the directional diagram, and curves in fig. 4 are an antenna normal directional diagram, a directional diagram of antenna scanning ± 30 °, and a directional diagram of antenna scanning ± 50 °, respectively. Fig. 5 is a Ka directional diagram, a horizontal axis represents a turntable angle when the directional diagram is tested, a vertical axis represents an amplitude value of the directional diagram, and curves in fig. 5 are an antenna normal directional diagram, a directional diagram scanned by the antenna by ± 20 °, and a directional diagram scanned by the antenna by ± 40 °, respectively. As can be seen from fig. 3-5, in this embodiment, both the two polarizations of Ku and Ka can obtain good directional diagram performance, such as low side lobe, small gain drop of the antenna in the scanning range, and the like.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
- The radiating array of the Ku/Ka dual-frequency dual-polarization phased-array antenna is characterized by comprising a plurality of basic units and a plurality of Ka antenna units, wherein one Ku antenna unit is arranged in each basic unit;the Ku antenna unit is a dual-linear polarization antenna and is arranged in a periodic array mode;the Ka antenna units are single-wire polarized antennas and are arranged in a sparse array mode;the Ka antenna unit is arranged at the junction of the adjacent basic units, and/or the Ka antenna unit is arranged at the outer edge of the antenna radiation array.
- 2. The Ku/Ka dual-frequency dual-polarized phased array antenna radiating array according to claim 1, wherein the number ratio of the Ku antenna elements to the Ka antenna elements is 1: 1.5-2.
- 3. The Ku/Ka dual-frequency dual-polarized phased array antenna radiating array according to claim 2, wherein the number ratio of Ku antenna elements to Ka antenna elements is 1: 1.8.
- 4. The Ku/Ka dual-frequency dual-polarized phased array antenna radiating array according to claim 1, wherein the Ku antenna elements are slot-coupled feed antennas; and/or the Ka antenna unit is a slot coupling feed antenna.
- 5. The Ku/Ka dual-frequency dual-polarized phased array antenna radiating array according to claim 1, wherein the Ku and Ka antenna elements are coplanar.
- 6. The Ku/Ka dual-frequency dual-polarized phased array antenna radiating array according to claim 1, wherein the operating frequency of the Ku antenna elements is greater than 4GHz and/or the operating frequency of the Ka antenna elements is greater than 4 GHz.
- 7. The Ku/Ka dual-frequency dual-polarized phased array antenna radiating array according to claim 1, wherein the Ku antenna element operating frequency relative bandwidth is greater than 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110746529.8A CN113437534A (en) | 2021-07-02 | 2021-07-02 | Ku/Ka dual-frequency dual-polarization phased-array antenna radiation array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110746529.8A CN113437534A (en) | 2021-07-02 | 2021-07-02 | Ku/Ka dual-frequency dual-polarization phased-array antenna radiation array |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113437534A true CN113437534A (en) | 2021-09-24 |
Family
ID=77758492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110746529.8A Pending CN113437534A (en) | 2021-07-02 | 2021-07-02 | Ku/Ka dual-frequency dual-polarization phased-array antenna radiation array |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113437534A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115051171A (en) * | 2022-08-11 | 2022-09-13 | 广东分数维无线科技有限公司 | Dual-frequency dual-polarization integrated phased array and multi-beam array antenna and design method thereof |
| CN115498424A (en) * | 2022-10-24 | 2022-12-20 | 中国电子科技集团公司第二十六研究所 | Dual-frequency common-aperture antenna combining periodic array and sparse array |
| CN116845547A (en) * | 2023-07-06 | 2023-10-03 | 电子科技大学 | Ka band dual-polarization 2bit array antenna |
| CN117154407A (en) * | 2023-10-30 | 2023-12-01 | 成都雷电微力科技股份有限公司 | Ku/Ka dual-frequency dual-polarized common-caliber antenna unit and array |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1206254A (en) * | 1982-11-16 | 1986-06-17 | Noach Amitay | Phased array antenna employing linear scan for wide- angle arc coverage with polarization matching |
| EP0891643A1 (en) * | 1996-04-03 | 1999-01-20 | Johan Granholm | Dual polarization antenna array with very low cross polarization and low side lobes |
| DE102010014916A1 (en) * | 2010-04-14 | 2011-10-20 | Aeromaritime Systembau Gmbh | Phased array antenna |
| CN204088577U (en) * | 2014-08-18 | 2015-01-07 | 京信通信技术(广州)有限公司 | Bipolar omni-directional ceiling antenna |
| CN106099395A (en) * | 2016-08-11 | 2016-11-09 | 成都雷电微力科技有限公司 | A kind of multifrequency Shared aperture is combined phased array antenna structure |
| CN111585019A (en) * | 2020-06-17 | 2020-08-25 | 玉林师范学院 | Multifunctional comprehensive caliber antenna array surface |
| EP3767743A1 (en) * | 2019-07-16 | 2021-01-20 | CommScope Technologies LLC | Base station antennas having multiband beam-former arrays and related methods of operation |
| CN112467388A (en) * | 2020-11-11 | 2021-03-09 | 成都锐芯盛通电子科技有限公司 | Design method of sparsely arrayed multi-frequency composite aperture array antenna |
-
2021
- 2021-07-02 CN CN202110746529.8A patent/CN113437534A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1206254A (en) * | 1982-11-16 | 1986-06-17 | Noach Amitay | Phased array antenna employing linear scan for wide- angle arc coverage with polarization matching |
| EP0891643A1 (en) * | 1996-04-03 | 1999-01-20 | Johan Granholm | Dual polarization antenna array with very low cross polarization and low side lobes |
| DE102010014916A1 (en) * | 2010-04-14 | 2011-10-20 | Aeromaritime Systembau Gmbh | Phased array antenna |
| CN204088577U (en) * | 2014-08-18 | 2015-01-07 | 京信通信技术(广州)有限公司 | Bipolar omni-directional ceiling antenna |
| CN106099395A (en) * | 2016-08-11 | 2016-11-09 | 成都雷电微力科技有限公司 | A kind of multifrequency Shared aperture is combined phased array antenna structure |
| EP3767743A1 (en) * | 2019-07-16 | 2021-01-20 | CommScope Technologies LLC | Base station antennas having multiband beam-former arrays and related methods of operation |
| CN111585019A (en) * | 2020-06-17 | 2020-08-25 | 玉林师范学院 | Multifunctional comprehensive caliber antenna array surface |
| CN112467388A (en) * | 2020-11-11 | 2021-03-09 | 成都锐芯盛通电子科技有限公司 | Design method of sparsely arrayed multi-frequency composite aperture array antenna |
Non-Patent Citations (2)
| Title |
|---|
| 李昂等: ""一种Ka/Ku双波段双极化共口径阵列天线"", 《雷达科学与技术》 * |
| 汪云超: ""双频双极化弹载有源相控阵天线设计"", 《万方数据库》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115051171A (en) * | 2022-08-11 | 2022-09-13 | 广东分数维无线科技有限公司 | Dual-frequency dual-polarization integrated phased array and multi-beam array antenna and design method thereof |
| CN115498424A (en) * | 2022-10-24 | 2022-12-20 | 中国电子科技集团公司第二十六研究所 | Dual-frequency common-aperture antenna combining periodic array and sparse array |
| CN115498424B (en) * | 2022-10-24 | 2023-08-18 | 中国电子科技集团公司第二十六研究所 | Dual-frequency common-caliber antenna combining periodic array and sparse array |
| CN116845547A (en) * | 2023-07-06 | 2023-10-03 | 电子科技大学 | Ka band dual-polarization 2bit array antenna |
| CN117154407A (en) * | 2023-10-30 | 2023-12-01 | 成都雷电微力科技股份有限公司 | Ku/Ka dual-frequency dual-polarized common-caliber antenna unit and array |
| CN117154407B (en) * | 2023-10-30 | 2024-01-23 | 成都雷电微力科技股份有限公司 | Ku/Ka dual-frequency dual-polarized common-caliber antenna unit and array |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113437534A (en) | Ku/Ka dual-frequency dual-polarization phased-array antenna radiation array | |
| CN110380218B (en) | Circular polarization plane substrate integrated magnetoelectric dipole antenna and array thereof | |
| CN109273836B (en) | Broadband wide-angle scanning antenna based on tightly-coupled dipole and anisotropic matching layer | |
| CN112864617B (en) | 5G millimeter wave dual-polarized broadband wide-angle tightly-coupled array antenna | |
| CN110957569B (en) | Broadband radiation unit and antenna | |
| CN113644432B (en) | Dual circularly polarized phased array antenna array | |
| CN113594680A (en) | Circular polarization octave ultra-wideband antenna unit and array | |
| CN216720296U (en) | Transmit-receive dual-frequency common-port planar phased array antenna | |
| CN112134032A (en) | Phased array antenna based on subarray arrangement and system thereof | |
| CN113764871A (en) | Low-profile dual-band dual-polarization common-caliber conformal phased array antenna | |
| CN112542704B (en) | Highly integrated dual-polarized base station array antenna suitable for 2/3/4/5G communication | |
| CN210926312U (en) | Broadband radiation unit and antenna | |
| CN109599665B (en) | Dual-polarized array antenna and application thereof | |
| CN115084872B (en) | Ultra-wide bandwidth scanning angle tight coupling phased array antenna | |
| CN210607617U (en) | Plane spread spectrum broadband base station antenna | |
| CN114243297A (en) | Compact dual-frequency dual-polarized antenna array applied to millimeter wave beam scanning | |
| CN100517864C (en) | Antenna for mobile communication base station | |
| Zhou et al. | Ridged Waveguide Slot Phased Array for 5G Millimeter-wave Application | |
| CN220895851U (en) | Broadband millimeter wave antenna unit and array | |
| CN117578084B (en) | Low-profile all-metal folding transmission array antenna | |
| CN214336892U (en) | Broadband circularly polarized phased array antenna for satellite communication | |
| CN215342986U (en) | Dipole antenna | |
| CN115275597B (en) | Broadband high-isolation high-cross polarization ratio dual-polarized antenna and heterogeneous array thereof | |
| CN214336922U (en) | Wide-bandwidth scanning angle antenna array | |
| CN115296047B (en) | Tightly coupled circularly polarized common-caliber antenna |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210924 |
|
| RJ01 | Rejection of invention patent application after publication |