CN111682303B - Common-aperture full-airspace coverage antenna - Google Patents
Common-aperture full-airspace coverage antenna Download PDFInfo
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- CN111682303B CN111682303B CN202010386633.6A CN202010386633A CN111682303B CN 111682303 B CN111682303 B CN 111682303B CN 202010386633 A CN202010386633 A CN 202010386633A CN 111682303 B CN111682303 B CN 111682303B
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- antenna
- antenna unit
- polarization antenna
- circuit board
- printed circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—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
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses a common-aperture full-airspace coverage antenna which comprises a printed circuit board, wherein a feed network is formed on the printed circuit board, a vertical polarization antenna unit, four circular polarization antenna units and four periodic decoupling structures are arranged on the printed circuit board, the four circular polarization antenna units are arranged in a surrounding mode by taking the vertical polarization antenna unit as a center, a periodic decoupling structure is arranged between each circular polarization antenna unit and the vertical polarization antenna unit, the vertical polarization antenna unit and the circular polarization antenna unit are connected with the feed network in a feed mode, and the vertical polarization antenna unit, the circular polarization antenna unit and the periodic decoupling structures are arranged in a common-aperture mode. The invention can realize the coverage of the antenna full airspace directional diagram, greatly reduce the size and the weight of the antenna and improve the aperture utilization rate of the antenna.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a common-aperture full-airspace coverage antenna.
Background
With the rapid development of information and electronic technology, more and more communication systems put forward the requirement of full-airspace communication, which requires the antenna directivity to realize full-airspace coverage. However, the conventional communication antenna does not have the capability of full-space coverage, for example, in the conventional ground-space communication or air-space communication, a vertical polarization antenna is generally adopted for communication, but the vertical polarization antenna cannot realize headspace coverage, so that communication cannot be realized when the antenna is over-topped, and for a circular polarization antenna, although the headspace coverage can be realized, for a low-elevation-angle space, the performance is seriously deteriorated, so that communication cannot be realized at a long distance and at a low elevation angle. Simply arranging two antennas side by side inevitably results in space waste and weight increase, and the antenna directivity is affected by mutual coupling of the antennas, which is inevitably unacceptable for some platforms.
Disclosure of Invention
The invention aims to provide a common-aperture full-airspace coverage antenna, which can realize full-airspace directional diagram coverage of the antenna, greatly reduce the size and weight of the antenna and improve the aperture utilization rate of the antenna.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a full airspace of common aperture covers antenna, includes printed circuit board, be formed with the feed network on the printed circuit board, be equipped with vertical polarization antenna unit, four circular polarization antenna units and four cycle decoupling structure on the printed circuit board, four circular polarization antenna units use vertical polarization antenna unit encircles the arrangement as the center, each be equipped with a cycle decoupling structure between circular polarization antenna unit and the vertical polarization antenna unit, vertical polarization antenna unit and circular polarization antenna unit all with feed network feed connection, vertical polarization antenna unit, circular polarization antenna unit and cycle decoupling structure common aperture setting.
Preferably, the vertical polarization antenna unit is a folded monopole, and the circular polarization antenna unit is a PIFA.
Preferably, the phase difference between two adjacent circularly polarized antenna units in the arrangement direction is 90 degrees.
Preferably, the distance between two opposite circularly polarized antenna elements is 1/2 wavelengths.
Preferably, the periodic decoupling structure is a metal frame with a notch formed in one side, and the notch faces the circularly polarized antenna unit.
Preferably, still include metal bottom plate and antenna house, the antenna house cover is established and is formed airtight cavity on the metal bottom plate, printed circuit board is located airtight cavity.
Preferably, the closed cavity is filled with a potting material.
Preferably, the potting material is a foam.
Preferably, the metal bottom plate is provided with a radio frequency socket, and the radio frequency socket is connected with the feed network in a feed manner.
Preferably, the vertical polarization antenna unit and the circular polarization antenna unit are fixed with the printed circuit board through screws, the radio frequency socket is fixed with the metal base plate through screws, and the antenna housing is fixed with the metal base plate through rivets.
Different from the prior art, the invention has the beneficial effects that: the performance is excellent, the gain of more than 0dB, the full airspace coverage, the voltage standing wave ratio of less than 1.5 and the like are achieved, and meanwhile, the structure is simple, the weight is light, the section is low, the electrical performance is stable, the consistency is high, and the method is suitable for mass production.
Drawings
Fig. 1 is a top view of a common-aperture full spatial coverage antenna provided in an embodiment of the present invention;
fig. 2 is an oblique view of the co-aperture full spatial coverage antenna shown in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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.
Referring to fig. 1 and 2, the co-aperture full airspace coverage antenna according to the embodiment of the present invention includes a printed circuit board 1, a feed network (not shown) is formed on the printed circuit board 1, a vertical polarization antenna unit 2, four circular polarization antenna units 3, and four periodic decoupling structures 4 are disposed on the printed circuit board 1, the four circular polarization antenna units 3 are arranged around the vertical polarization antenna unit 2 as a center, a periodic decoupling structure 4 is disposed between each circular polarization antenna unit 3 and the vertical polarization antenna unit 2, the vertical polarization antenna unit 2 and the circular polarization antenna unit 3 are both connected to the feed network, and the vertical polarization antenna unit 2, the circular polarization antenna unit 3, and the periodic decoupling structure 4 are arranged in a co-aperture manner.
In the present embodiment, the vertical polarization antenna unit 2 is a folded monopole, and compared with the conventional monopole, the height of the folded monopole can be reduced to 1/8 wavelengths, so that the antenna profile is reduced, and the installation is facilitated. The vertically polarized antenna unit 2 may be milled from aluminum or stainless steel to achieve a lighter weight. The vertically polarized antenna element 2 may be fixed to the printed circuit board 1 by screws.
The circularly polarized antenna unit 3 is a PIFA which has the advantages of low profile, light weight and the like. The circularly polarized antenna units 3 are arranged around the vertical polarized antenna unit 2, so that the axial ratio of the radiation area of the antenna is good. Meanwhile, a periodic decoupling structure 4 is arranged between the circularly polarized antenna unit 3 and the vertical polarized antenna unit 2, so that mutual coupling between the antennas can be reduced, and antenna gain is improved. The layout form also makes full use of the space size, and the vertical polarization antenna unit 2 is arranged in the center of the circular polarization antenna unit 3, so that the influence of the circular polarization antenna unit 3 on the directivity of the vertical polarization antenna unit 2 is reduced. In a specific application, the phase difference between two adjacent circularly polarized antenna units 3 in the arrangement direction is 90 degrees, and the distance between two opposite circularly polarized antenna units 3 is 1/2 wavelengths. That is, the four circularly polarized antenna elements 3 enclose a square. The circularly polarized antenna unit 3 may be fixed to the printed circuit board 1 by screws.
The periodic decoupling structure 4 is a metal frame with a notch formed on one side, and the notch faces the circularly polarized antenna unit 3. Four periodic decoupling structures 4 are also arranged around the vertical polarization antenna unit 2 as a center, and the phase difference of two adjacent periodic decoupling structures 4 in the arrangement direction is 90 degrees.
That is, the periodic decoupling structure 4 and the circularly polarized antenna unit 3 are sequentially disposed in the east, west, south, and north directions in the cross direction centered on the vertically polarized antenna unit 2.
Because the antenna is sensitive to external interference, in order to protect the antenna, in this embodiment, the common-aperture full-airspace coverage antenna further comprises a metal base plate 5 and an antenna housing 6, the antenna housing 6 is covered on the metal base plate 5 to form a closed cavity, and the printed circuit board 1 is located in the closed cavity. Meanwhile, the closed cavity is filled with a potting material, such as a foaming material. The radome 6 can be fixed with the metal base plate 5 through rivets, and the radome 6 can be made of transparent materials, such as transparent plastics.
For convenient installation, the metal base plate 5 is provided with a radio frequency socket (not shown), and the radio frequency socket is connected with the feed network feed. The rf socket may be fixed to the metal base plate 5 by screws.
Through the radio frequency socket, the common-aperture full-airspace coverage antenna of the embodiment can be connected with a radio frequency terminal at the rear end.
Through the mode, the common-aperture full-airspace coverage antenna disclosed by the embodiment of the invention has the advantages that the radiation characteristics of the vertical polarization antenna and the circular polarization antenna are reasonably utilized, the common-aperture layout of the two antennas with different radiation characteristics is realized, the decoupling design is realized through the periodic decoupling structure, and the influence between the antennas is reduced, so that the full-airspace directional diagram coverage of the antenna can be realized, the size and the weight of the antenna are greatly reduced, the aperture utilization rate of the antenna is improved, the space is saved, the antenna has excellent performance, has the advantages of gain larger than 0dB, full-airspace coverage, voltage standing-wave ratio smaller than 1.5 and the like, and meanwhile, the antenna is simple in structural form, light in weight, low in section, stable in electrical performance, high in consistency and suitable for mass production.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A common-aperture full-airspace coverage antenna is characterized by comprising a printed circuit board, wherein a feed network is formed on the printed circuit board, the printed circuit board is provided with a vertical polarization antenna unit, four circularly polarized antenna units and four periodic decoupling structures, the four circularly polarized antenna units are circularly arranged by taking the vertical polarized antenna unit as a center, the phase difference of two adjacent circularly polarized antenna units in the arrangement direction is 90 degrees, the distance between two mutually opposite circularly polarized antenna units is 1/2 wavelengths, a periodic decoupling structure is arranged between each circularly polarized antenna unit and the vertical polarized antenna unit, the vertical polarization antenna unit and the circular polarization antenna unit are both connected with the feed network, the vertical polarization antenna unit, the circular polarization antenna unit and the periodic decoupling structure are arranged in a common aperture mode.
2. The co-aperture full airspace coverage antenna of claim 1, wherein the vertically polarized antenna element is a folded monopole and the circularly polarized antenna element is a PIFA.
3. The antenna of claim 2, wherein the periodic decoupling structure is a metal frame with a notch on one side, and the notch faces the circular polarized antenna unit.
4. The common-aperture full-airspace-covering antenna according to any one of claims 1 to 3, further comprising a metal base plate and an antenna housing, wherein the antenna housing is covered on the metal base plate to form a closed cavity, and the printed circuit board is located in the closed cavity.
5. The co-aperture full airspace coverage antenna of claim 4, wherein the closed cavity is filled with a potting material.
6. The co-aperture full airspace coverage antenna of claim 5, wherein the potting material is a foam.
7. The antenna of claim 4, wherein the metal base plate is provided with a radio frequency socket, and the radio frequency socket is connected with a feed network feed.
8. The co-aperture full airspace coverage antenna of claim 7, wherein the vertical polarization antenna unit and the circular polarization antenna unit are fixed to the printed circuit board by screws, the radio frequency socket is fixed to the metal base plate by screws, and the radome is fixed to the metal base plate by rivets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010386633.6A CN111682303B (en) | 2020-05-09 | 2020-05-09 | Common-aperture full-airspace coverage antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010386633.6A CN111682303B (en) | 2020-05-09 | 2020-05-09 | Common-aperture full-airspace coverage antenna |
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| Publication Number | Publication Date |
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| CN111682303A CN111682303A (en) | 2020-09-18 |
| CN111682303B true CN111682303B (en) | 2022-03-22 |
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| CN202010386633.6A Active CN111682303B (en) | 2020-05-09 | 2020-05-09 | Common-aperture full-airspace coverage antenna |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112510368B (en) * | 2020-10-19 | 2023-06-09 | 西安朗普达通信科技有限公司 | Tunable dual-frequency decoupling chip |
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|---|---|---|---|---|
| US7385560B1 (en) * | 2006-09-26 | 2008-06-10 | Rockwell Collins, Inc. | Aircraft directional/omnidirectional antenna arrangement |
| CN106684576A (en) * | 2016-12-28 | 2017-05-17 | 北京安拓思科技有限责任公司 | Mini-size circularly polarized antenna |
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| JP2004048369A (en) * | 2002-07-11 | 2004-02-12 | Alps Electric Co Ltd | Composite antenna |
| TW580779B (en) * | 2003-04-23 | 2004-03-21 | Wistron Neweb Corp | Combined antenna |
| CN2836258Y (en) * | 2005-08-05 | 2006-11-08 | 西安海天天线科技股份有限公司 | Dual-frequency wide beam circular polarized antenna for improvement of low elevation angle performance |
| CN2865037Y (en) * | 2005-08-16 | 2007-01-31 | 西安海天天线科技股份有限公司 | Double-frequency wide-beam circular-polarization antenna with well low-elevation performance |
| CN101286592B (en) * | 2008-06-13 | 2012-09-26 | 航天恒星科技股份有限公司 | Multimodal satellite navigation terminal antennae with wide-band circular polarized wide wave beam |
| CN103280630A (en) * | 2013-05-02 | 2013-09-04 | 苏州卡基纳斯通信科技有限公司 | Multi-frequency wide-beam circular polarization antenna |
| CN104200112B (en) * | 2014-09-10 | 2017-02-15 | 四川九洲电器集团有限责任公司 | Omnidirectional radar angle-measurement method and system based on rotating-field antenna |
| CN104993220B (en) * | 2015-06-12 | 2018-11-16 | 四川九洲电器集团有限责任公司 | Rotating field formula omnidirectional antenna, low altitude short range radar system and signal processing method |
| CN105428816A (en) * | 2015-11-16 | 2016-03-23 | 中国电子科技集团公司第十研究所 | Left-handed and right-handed double circular polarized wide beam antenna |
| CN205752519U (en) * | 2016-05-13 | 2016-11-30 | 华南理工大学 | A kind of low section omnidirectional circular-polarized antenna working in ISM band |
| CN107565226A (en) * | 2017-08-17 | 2018-01-09 | 成都天锐星通科技有限公司 | A kind of antenna mechanism |
| CN110380193B (en) * | 2019-06-04 | 2020-11-13 | 西安电子科技大学 | Miniaturized multiband common-caliber circularly polarized antenna |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7385560B1 (en) * | 2006-09-26 | 2008-06-10 | Rockwell Collins, Inc. | Aircraft directional/omnidirectional antenna arrangement |
| CN106684576A (en) * | 2016-12-28 | 2017-05-17 | 北京安拓思科技有限责任公司 | Mini-size circularly polarized antenna |
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| CN111682303A (en) | 2020-09-18 |
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Inventor after: Li Haoyi Inventor after: Cheng Qi Inventor after: Wang Xiaolin Inventor after: Bian Cheng Inventor after: Li Shidong Inventor after: Zheng Wanqing Inventor before: Li Haoyi Inventor before: Bian Cheng Inventor before: Li Shidong Inventor before: Zheng Wanqing |
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