CN114824760B - C/UHF double-frequency-band broadband composite omnidirectional antenna - Google Patents
C/UHF double-frequency-band broadband composite omnidirectional antenna Download PDFInfo
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- CN114824760B CN114824760B CN202210525940.7A CN202210525940A CN114824760B CN 114824760 B CN114824760 B CN 114824760B CN 202210525940 A CN202210525940 A CN 202210525940A CN 114824760 B CN114824760 B CN 114824760B
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- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 239000011152 fibreglass Substances 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 14
- 239000004088 foaming agent Substances 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 8
- 239000004677 Nylon Substances 0.000 claims description 7
- 229920001778 nylon Polymers 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 229920006335 epoxy glue Polymers 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 239000003822 epoxy resin Substances 0.000 abstract description 3
- 239000003292 glue Substances 0.000 abstract description 3
- 229920000647 polyepoxide Polymers 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/285—Aircraft wire antennas
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Support Of Aerials (AREA)
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a C/UHF double-frequency-band broadband composite omni-directional antenna, which belongs to the technical field of antennas and comprises a C-frequency-band feeder cable, a C-frequency-band feeder balun, a glass fiber reinforced plastic hollow tube, a C-frequency-band lower radiating array and a C-frequency-band upper radiating array. The outer conductor of the C-band feeder cable is welded to the C-band feed balun and the radiating array in the C-band. The inner core of the cable is welded to the radiating array on the C band. The inner core of the UHF frequency band antenna radio frequency socket is welded at the bottom of the UHF frequency band radiator to feed the UHF frequency band antenna. The feeder cable of the C-band antenna is connected to the radiator of the UHF antenna by means of welding. And filling the interior of the antenna with a foaming agent, and adhering and sealing the cap with epoxy resin glue. The invention has simple structure, small volume and light weight, keeps the performance of each frequency band antenna not to be deteriorated, realizes space multiplexing, and saves the installation space of the carrier platform while ensuring the link communication function.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a C/UHF dual-band broadband composite omnidirectional antenna.
Background
In unmanned aerial vehicle measurement and control and information transmission, UHF frequency band and C frequency band microwave signals are required to be utilized to realize energy transmission and reception. With the development of radio frequency integration on a carrier platform, the problem brought by the integration of multifunctional tasks is more intense in installation space and more difficult in electromagnetic compatibility design. The antenna is used as equipment for space energy exchange, has the specificity, if metal shielding exists at a relatively close distance in the radiation direction of the antenna, the radiation pattern can be seriously influenced, one thought for solving the problem is space multiplexing, only one installation space is occupied, the characteristics of low gain in the up-down direction of the omni-directional antenna pattern are utilized, the antennas in different frequency bands are arranged in a high-low mode and are not shielded mutually, and the key is that the problem that feeding of the antennas in two frequency bands is not influenced mutually is solved.
Disclosure of Invention
In view of this, the present invention provides a C/UHF dual band broadband composite omni-directional antenna. The antenna has the advantages of simple structure, small volume and light weight, keeps the performance of each frequency band antenna not to be deteriorated, realizes space multiplexing, ensures the link communication function and saves the installation space of the carrier platform.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a C/UHF dual-band broadband composite omni-directional antenna comprises a C-band antenna and a UHF-band antenna; the C-band antenna mainly comprises a C-band radiating oscillator, a C-band feed balun and a C-band feed cable; the UHF band antenna mainly comprises a UHF radiator and a UHF band antenna radio frequency socket 11; the dual-frequency antenna also comprises a glass fiber reinforced plastic hollow tube, an antenna protection cover and a dual-frequency antenna mounting flange; the UHF frequency band radiator 6 is vertically fixed on the upper surface of the double-frequency antenna mounting flange through a nylon block 7; the inner core of the UHF frequency band antenna radio frequency socket 11 penetrates through the double-frequency antenna mounting flange and is welded at the bottom of the UHF frequency band radiator 6, and the outer conductor of the UHF frequency band antenna radio frequency socket 11 is screwed on the double-frequency antenna mounting flange 13 to feed the UHF frequency band antenna;
the C-band radiating oscillator comprises a C-band upper radiating oscillator and a C-band lower radiating oscillator; the C-band upper radiating oscillator, the C-band lower radiating oscillator, the glass fiber reinforced plastic hollow tube and the C-band feed balun are sequentially arranged from top to bottom; the C-band feeder cable 5 sequentially passes through the double-frequency antenna mounting flange 13, the C-band feed balun 4, the glass fiber reinforced plastic hollow tube 3 and the C-band lower radiating array 2 from bottom to top, and the inner core of the C-band feeder cable 5 is welded to the C-band upper radiating array 1 to feed the C-band antenna;
the outer conductor of the C-band feeder cable 5 is fixed at the top of the UHF-band radiator in a welding mode; the antenna protection cover is fixed at the top of the double-frequency antenna mounting flange, and the C-band antenna and the UHF-band antenna are covered in a cavity formed by the antenna protection cover and the double-frequency antenna mounting flange.
Further, the distance from the top of the radiating oscillator on the C frequency band to the bottom of the UHF frequency band radiator is UHF quarter wavelength.
Furthermore, the cavity formed by the antenna protective cover and the double-frequency antenna mounting flange is filled with foaming agent.
Further, the top of the antenna protection cover is of a necking structure, and the top of the antenna protection cover is an opening; the C-band radiating oscillator and the C-band feed balun are positioned at the necking structure of the antenna housing; the top opening of antenna protection cover is equipped with the block, and bonds between block and the top opening has epoxy glue.
Furthermore, the C-band feed balun is a hollow aluminum round tube serving as a choke sleeve, and the theoretical length of the C-band feed balun is one quarter wavelength of the center frequency of the C-band.
The beneficial effects generated by adopting the technical scheme are as follows:
according to the invention, two independent omnidirectional antennas are adopted, and the C-band antenna feeder cable is welded on the UHF antenna radiator to form a tuning structure of the UHF antenna, so that the influence of the C-band antenna feeder cable on the UHF antenna is eliminated, and the omnidirectional antennas of the two bands are skillfully integrated together, are arranged in a high-low mode and are not shielded mutually. The UHF frequency band working relative bandwidth reaches 26%, the C frequency band working relative bandwidth reaches 30%, the standing waves in the frequency band are all smaller than 2:1, the gain is greater than or equal to 2dBi, the out-of-roundness is smaller than +/-1.5 dBi, the overall size of the antenna is 148mm long, 78mm wide, 178mm high, and the weight is about 400 g.
Drawings
FIG. 1 is a schematic elevational view of an embodiment of the present invention;
fig. 2 is a schematic side view of an embodiment of the present invention.
In the figure: the antenna comprises a radiating array 1 on a C frequency band, a radiating array 2 under the C frequency band, a glass fiber reinforced plastic hollow tube 3, a C frequency band feed balun 4, a C frequency band feed cable 5, a UHF frequency band radiator 6, a nylon block 7, an antenna protection cover 8, a glass fiber reinforced plastic cap 9, a C frequency band antenna radio frequency socket 10, a UHF frequency band antenna radio frequency socket 11, a foaming agent 12 and a double-frequency antenna mounting flange 13.
Detailed Description
The invention will be further described with reference to the drawings and detailed description.
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it will be apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
A C/UHF dual-band broadband composite omni-directional antenna comprises a C-band antenna and a UHF-band antenna; the C-band antenna mainly comprises a C-band radiating oscillator, a C-band feed balun and a C-band feed cable; the UHF band antenna mainly comprises a UHF radiator and a UHF band antenna radio frequency socket 11; the dual-frequency antenna also comprises a glass fiber reinforced plastic hollow tube, an antenna protection cover and a dual-frequency antenna mounting flange; the UHF frequency band radiator 6 is vertically fixed on the upper surface of the double-frequency antenna mounting flange through a nylon block 7; the inner core of the UHF frequency band antenna radio frequency socket 11 penetrates through the S double-frequency antenna mounting flange and is welded at the bottom of the UHF frequency band radiator 6, and the outer conductor of the UHF frequency band antenna radio frequency socket 11 is screwed on the double-frequency antenna mounting flange 13 to feed the UHF frequency band antenna;
the C-band radiating oscillator comprises a C-band upper radiating oscillator and a C-band lower radiating oscillator; the C-band upper radiating oscillator, the C-band lower radiating oscillator, the glass fiber reinforced plastic hollow tube and the C-band feed balun are sequentially arranged from top to bottom; the C-band feeder cable 5 sequentially passes through the double-frequency antenna mounting flange 13, the C-band feed balun 4, the glass fiber reinforced plastic hollow tube 3 and the C-band lower radiating array 2 from bottom to top, and the inner core of the C-band feeder cable 5 is welded to the C-band upper radiating array 1 to feed the C-band antenna;
the outer conductor of the C-band feeder cable 5 is fixed at the top of the UHF-band radiator in a welding mode; the antenna protection cover is fixed at the top of the double-frequency antenna mounting flange, and the C-band antenna and the UHF-band antenna are covered in a cavity formed by the antenna protection cover and the double-frequency antenna mounting flange.
Further, the distance from the top of the radiating oscillator on the C frequency band to the bottom of the UHF frequency band radiator is UHF quarter wavelength.
Furthermore, the cavity formed by the antenna protective cover and the double-frequency antenna mounting flange is filled with foaming agent.
Further, the top of the antenna protection cover is of a necking structure, and the top of the antenna protection cover is an opening; the C-band radiating oscillator and the C-band feed balun are positioned at the necking structure of the antenna housing; the top opening of antenna protection cover is equipped with the block, and bonds between block and the top opening has epoxy glue.
Furthermore, the C-band feed balun is a hollow aluminum round tube serving as a choke sleeve, and the theoretical length of the C-band feed balun is one quarter wavelength of the center frequency of the C-band.
The following is a more specific example:
referring to fig. 1 and 2, the embodiment includes a radiating array 1 in the C frequency band, a radiating array 2 in the C frequency band, a glass fiber reinforced plastic hollow tube 3, a C frequency band feeding balun 4, a C frequency band feeding wire cable 5, a UHF frequency band radiator 6, a nylon block 7, an antenna protection cover 8, a glass fiber reinforced plastic cap 9, a C frequency band antenna radio frequency socket 10, a UHF frequency band antenna radio frequency socket 11, a filling foaming agent 12, and a dual-frequency antenna mounting flange 13. The C-band feeder cable 5 sequentially passes through the double-frequency antenna mounting flange 13, the C-band feed balun 4, the glass fiber reinforced plastic hollow tube 3 and the C-band lower radiating array 2 from bottom to top, and finally the inner core of the cable is welded to the C-band upper radiating array 1 to feed the C-band antenna, and the outer conductor of the C-band feeder cable 5 is welded to the C-band feed balun 4 and the C-band lower radiating array 2. The glass fiber reinforced plastic hollow tube 3 is used for fixing and positioning the distance between the C-band feed balun 4 and the radiating array 2 in the C-band. The outer conductor of the C-band feeder cable 5 is fixed at the top position of the UHF-band radiator 6 by welding. The UHF band radiator 6 is clamped in the middle of the nylon block 7 and is fixed by a screw. The inner core of the UHF band antenna radio frequency socket 11 is welded at the bottom of the UHF band radiator 6, and the outer conductor is screwed on the double-frequency antenna mounting flange 13 to feed the UHF band antenna.
The C-band omni-directional antenna and the UHF-band omni-directional antenna of the present embodiment are connected to the radiator of the UHF antenna by welding the feeder cable of the C-band antenna. And filling the interior of the antenna with a foaming agent, and adhering and sealing the cap with epoxy resin glue.
The C-band omnidirectional antenna comprises a C-band feeder cable, a C-band feeder balun, a glass fiber reinforced plastic hollow tube, a C-band radiating array and a C-band upper radiating array. The outer conductor of the C-band feeder cable is welded to the C-band feed balun and the radiating array in the C-band. The inner core of the cable is welded to the radiating array on the C band.
The C-band feed balun is a hollow aluminum round tube with the outer diameter of 10mm and is equivalent to a choke sleeve, the theoretical length is one quarter wavelength of the center frequency, and the feed balun has the function of preventing the current of the outer conductor of the feed cable from flowing to the outer surface of the feed cable and only flowing to the vibrator arms, so that the currents on the two arms of the vibrator are kept balanced.
The UHF band omnidirectional antenna comprises a UHF band antenna radio frequency socket, a UHF band radiator and a nylon block. The inner core of the UHF frequency band antenna radio frequency socket is welded at the bottom of the UHF frequency band radiator to feed the UHF frequency band antenna, and corners of the UHF frequency band antenna radiator are symmetrically provided with a chamfer, and the unilateral length of the chamfer is 20mm.
The outer conductor of the C-band feeder cable is fixed at the top of the UHF-band radiator in a welding mode, and the cable outer conductor is also connected with the double-frequency antenna mounting flange, so that a quarter-wavelength shunt balancer is formed for the UHF antenna, the matching of the UHF antenna is participated, and the radiation pattern of the UHF antenna is not influenced.
The foaming agent is carried out after the welding work of the antenna is finished, the AB material of the foaming agent is mixed in proportion, then the AB material of the foaming agent is poured into the antenna housing, the AB material of the foaming agent is expanded out through the opening at the upper part, the inside is guaranteed to be filled, and the cap is adhered to and seals the opening by epoxy resin glue.
Claims (5)
1. A C/UHF dual-band broadband composite omni-directional antenna comprises a C-band antenna and a UHF-band antenna; the C-band antenna mainly comprises a C-band radiating oscillator, a C-band feed balun and a C-band feed cable; the UHF frequency band antenna mainly comprises a UHF radiator and a UHF frequency band antenna radio frequency socket (11); the dual-frequency antenna is characterized by further comprising a glass fiber reinforced plastic hollow tube, an antenna protection cover and a dual-frequency antenna mounting flange; the UHF frequency band radiator (6) is vertically fixed on the upper surface of the double-frequency antenna mounting flange through a nylon block (7); the inner core of the UHF frequency band antenna radio frequency socket (11) penetrates through the double-frequency antenna mounting flange and is welded at the bottom of the UHF frequency band radiator (6), and the outer conductor of the UHF frequency band antenna radio frequency socket (11) is screwed on the double-frequency antenna mounting flange (13) to feed the UHF frequency band antenna;
the C-band radiating oscillator comprises a C-band upper radiating oscillator and a C-band lower radiating oscillator; the C-band upper radiating oscillator, the C-band lower radiating oscillator, the glass fiber reinforced plastic hollow tube and the C-band feed balun are sequentially arranged from top to bottom; the C-band feeder cable (5) sequentially passes through the double-frequency antenna mounting flange (13), the C-band feed balun (4), the glass fiber reinforced plastic hollow tube (3) and the C-band lower radiating array (2) from bottom to top, and the inner core of the C-band feeder cable (5) is welded to the C-band upper radiating array (1) to feed the C-band antenna;
the outer conductor of the C-band feeder cable (5) is fixed at the top of the UHF-band radiator in a welding mode; the antenna protection cover is fixed at the top of the double-frequency antenna mounting flange, and the C-band antenna and the UHF-band antenna are covered in a cavity formed by the antenna protection cover and the double-frequency antenna mounting flange.
2. The C/UHF dual-band broadband composite omni-directional antenna according to claim 1, wherein a distance from a top of the radiating element on the C band to a bottom of the UHF band radiator is a UHF quarter wavelength.
3. The C/UHF dual-band broadband composite omnidirectional antenna of claim 1, wherein the cavity formed by the antenna protective cover and the dual-band antenna mounting flange is filled with a foaming agent.
4. The C/UHF dual-band broadband composite omnidirectional antenna of claim 1, wherein the top of the antenna protective cover is of a necked-down structure and the top is open; the C-band radiating oscillator and the C-band feed balun are positioned at the necking structure of the antenna housing; the top opening of antenna protection cover is equipped with the block, and bonds between block and the top opening has epoxy glue.
5. The C/UHF dual-band broadband composite omni-directional antenna according to claim 1, wherein the C-band feed balun is a hollow aluminum circular tube for functioning as a choke sleeve, and the length of the hollow aluminum circular tube is a quarter wavelength of the center frequency of the C-band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210525940.7A CN114824760B (en) | 2022-05-16 | 2022-05-16 | C/UHF double-frequency-band broadband composite omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210525940.7A CN114824760B (en) | 2022-05-16 | 2022-05-16 | C/UHF double-frequency-band broadband composite omnidirectional antenna |
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| Publication Number | Publication Date |
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| CN114824760A CN114824760A (en) | 2022-07-29 |
| CN114824760B true CN114824760B (en) | 2023-12-29 |
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| CN202210525940.7A Active CN114824760B (en) | 2022-05-16 | 2022-05-16 | C/UHF double-frequency-band broadband composite omnidirectional antenna |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040080115A (en) * | 2003-03-11 | 2004-09-18 | 한국항공우주산업 주식회사 | UHF/C-band Multiple Use Antenna |
| KR101198931B1 (en) * | 2011-07-01 | 2012-11-07 | 삼성탈레스 주식회사 | Antenna device |
| CN104319480A (en) * | 2014-11-10 | 2015-01-28 | 中国电子科技集团公司第五十四研究所 | UHF, S and C three-frequency-band common-caliber miniature antenna |
| CN106207410A (en) * | 2016-07-05 | 2016-12-07 | 中国电子科技集团公司第七研究所 | A kind of VHF/UHF dual-band broadband combined antenna |
| CN206673100U (en) * | 2017-04-24 | 2017-11-24 | 中国电子科技集团公司第五十四研究所 | Double-frequency omnidirectional antenna |
| CN107946746A (en) * | 2017-10-16 | 2018-04-20 | 西安雷通科技有限责任公司 | UHF/S dual-frequency range satellite communications and wireless communication system |
| CN109216898A (en) * | 2018-10-29 | 2019-01-15 | 天津市凯新电子有限公司 | A kind of small-sized omnidirectional antenna and production method of three frequency ranges |
| CN112563732A (en) * | 2020-12-01 | 2021-03-26 | 中国人民解放军63923部队 | UHF-S dual-band parabolic antenna transformation method |
-
2022
- 2022-05-16 CN CN202210525940.7A patent/CN114824760B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040080115A (en) * | 2003-03-11 | 2004-09-18 | 한국항공우주산업 주식회사 | UHF/C-band Multiple Use Antenna |
| KR101198931B1 (en) * | 2011-07-01 | 2012-11-07 | 삼성탈레스 주식회사 | Antenna device |
| CN104319480A (en) * | 2014-11-10 | 2015-01-28 | 中国电子科技集团公司第五十四研究所 | UHF, S and C three-frequency-band common-caliber miniature antenna |
| CN106207410A (en) * | 2016-07-05 | 2016-12-07 | 中国电子科技集团公司第七研究所 | A kind of VHF/UHF dual-band broadband combined antenna |
| CN206673100U (en) * | 2017-04-24 | 2017-11-24 | 中国电子科技集团公司第五十四研究所 | Double-frequency omnidirectional antenna |
| CN107946746A (en) * | 2017-10-16 | 2018-04-20 | 西安雷通科技有限责任公司 | UHF/S dual-frequency range satellite communications and wireless communication system |
| CN109216898A (en) * | 2018-10-29 | 2019-01-15 | 天津市凯新电子有限公司 | A kind of small-sized omnidirectional antenna and production method of three frequency ranges |
| CN112563732A (en) * | 2020-12-01 | 2021-03-26 | 中国人民解放军63923部队 | UHF-S dual-band parabolic antenna transformation method |
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| CN114824760A (en) | 2022-07-29 |
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