CN114824760A - C/UHF dual-band broadband composite omnidirectional antenna - Google Patents
C/UHF dual-band broadband composite omnidirectional antenna Download PDFInfo
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- CN114824760A CN114824760A CN202210525940.7A CN202210525940A CN114824760A CN 114824760 A CN114824760 A CN 114824760A CN 202210525940 A CN202210525940 A CN 202210525940A CN 114824760 A CN114824760 A CN 114824760A
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- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 239000004020 conductor Substances 0.000 claims abstract description 14
- 239000004088 foaming agent Substances 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims abstract description 8
- 239000003822 epoxy resin Substances 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims abstract description 6
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 6
- 230000005855 radiation Effects 0.000 claims description 35
- 239000011152 fibreglass Substances 0.000 claims description 16
- 239000004677 Nylon Substances 0.000 claims description 7
- 229920001778 nylon Polymers 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000000463 material Substances 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
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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
-
- 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 dual-band broadband composite omnidirectional antenna, which belongs to the technical field of antennas. And the outer conductor of the C-band feed cable is welded to the C-band feed balun and the C-band lower radiating array. The inner core of the cable is welded to the radiating array on the C frequency band. And an inner core of the UHF frequency band antenna radio frequency socket is welded at the bottom position of the UHF frequency band radiator to feed the UHF frequency band antenna. And connecting a feed cable of the C-band antenna to a radiator of the UHF antenna in a welding mode. Then, the foaming agent is used for filling the inside of the antenna, and the cover cap is bonded and sealed by epoxy resin glue. The invention has simple structure, small volume and light weight, keeps the performance of the respective 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 the measurement and control and information transmission of the unmanned aerial vehicle, microwave signals in UHF frequency band and C frequency band are needed to realize the transmission and reception of energy. With the development of radio frequency integration on the airborne platform, the problems brought by the integration of multifunctional tasks are more tense of installation space and more difficult electromagnetic compatibility design. The antenna is used as space energy exchange equipment and has particularity, if metal shielding exists at a short distance in the antenna radiation direction, a radiation directional diagram of the antenna can be seriously influenced, one idea for solving the problem is space multiplexing, only one installation space is occupied, the characteristic that the gain of an omnidirectional antenna directional diagram is very low in the up-down direction is utilized, the antennas of different frequency bands are arranged in a high-low mode and are not shielded, and the key is to solve the problem that the feeding of the two frequency band antennas is not influenced.
Disclosure of Invention
In view of this, the invention provides a C/UHF dual-band broadband composite omnidirectional antenna. The antenna has the advantages of simple structure, small volume and light weight, keeps the performance of the respective frequency band antenna from deteriorating, realizes spatial multiplexing, and saves the installation space of the carrier platform while ensuring the link communication function.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a C/UHF dual-band broadband composite omnidirectional antenna comprises a C-band antenna and a UHF-band antenna; the C-band antenna mainly comprises a C-band radiation 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 antenna comprises a glass fiber reinforced plastic hollow pipe, an antenna protective cover and a dual-frequency antenna mounting flange; the UHF frequency range radiator 6 is vertically fixed on the upper surface of the dual-frequency antenna mounting flange through a nylon block 7; an inner core of the UHF-band antenna radio-frequency socket 11 penetrates through the S dual-band antenna mounting flange and is welded at the bottom of the UHF-band radiator 6, and an outer conductor of the UHF-band antenna radio-frequency socket 11 is connected to the dual-band antenna mounting flange 13 in a threaded mode to feed the UHF-band antenna;
the C-band radiation oscillator comprises a C-band upper radiation oscillator and a C-band lower radiation oscillator; the C-band upper radiation vibrator, the C-band lower radiation vibrator, the glass fiber reinforced plastic hollow pipe and the C-band feed balun are sequentially arranged from top to bottom; the C-band feed cable 5 sequentially penetrates through the dual-band antenna mounting flange 13, the C-band feed balun 4, the glass fiber reinforced plastic hollow pipe 3 and the C-band lower radiation array 2 from bottom to top, an inner core of the C-band feed cable 5 is welded to the C-band upper radiation array 1, and the C-band antenna is fed;
the outer conductor of the C-band feed cable 5 is fixed on the top of the UHF-band radiator in a welding mode; the antenna protection cover is fixed at the top of the dual-frequency antenna mounting flange, and the C-band antenna and the UHF-band antenna cover are arranged in a cavity formed by the antenna protection cover and the dual-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, foaming agents are filled in a cavity formed by the antenna protection cover and the dual-frequency antenna mounting flange.
Furthermore, the top of the antenna protection cover is of a necking structure, and the top of the antenna protection cover is provided with an opening; the C-frequency band radiation oscillator and the C-frequency band feed balun are positioned at a necking structure of the antenna housing; the top opening of the antenna protection cover is provided with a cover cap, and epoxy resin glue is bonded between the cover cap and the top opening.
Further, the C-band feed balun is a hollow aluminum circular tube used as a choke sleeve, and the theoretical length of the C-band feed balun is a quarter wavelength of the center frequency of the C-band feed balun.
The invention adopts the technical scheme to produce the beneficial effects that:
the invention adopts two independent omnidirectional antennas, and the C-band antenna feed cable is welded on the UHF antenna radiator to form a tuning structure of the UHF antenna, thereby eliminating the influence of the C-band antenna feed cable on the UHF antenna, and skillfully integrating the omnidirectional antennas of the two bands together, and the omnidirectional antennas are arranged in a high and low way and are not shielded. The UHF frequency band working relative bandwidth reaches 26%, the C frequency band working relative bandwidth reaches 30%, standing waves in the frequency band are smaller than 2:1, the gain is larger 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 and 178mm high, and the weight is about 400 g.
Drawings
FIG. 1 is a schematic front 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 C-band upper radiating array 1, a C-band lower radiating array 2, a glass fiber reinforced plastic hollow pipe 3, a C-band feed balun 4, a C-band feed cable 5, a UHF-band radiator 6, a nylon block 7, an antenna protective cover 8, a glass fiber reinforced plastic cover cap 9, a C-band antenna radio frequency socket 10, a UHF-band antenna radio frequency socket 11, a foaming agent 12 and a dual-band antenna mounting flange 13.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
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 is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
A C/UHF dual-band broadband composite omnidirectional antenna comprises a C-band antenna and a UHF-band antenna; the C-band antenna mainly comprises a C-band radiation 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 antenna comprises a glass fiber reinforced plastic hollow pipe, an antenna protective cover and a dual-frequency antenna mounting flange; the UHF frequency range radiator 6 is vertically fixed on the upper surface of the dual-frequency antenna mounting flange through a nylon block 7; an inner core of the UHF-band antenna radio-frequency socket 11 penetrates through the S dual-band antenna mounting flange and is welded at the bottom of the UHF-band radiator 6, and an outer conductor of the UHF-band antenna radio-frequency socket 11 is connected to the dual-band antenna mounting flange 13 in a threaded mode to feed the UHF-band antenna;
the C-band radiation oscillator comprises a C-band upper radiation oscillator and a C-band lower radiation oscillator; the C-band upper radiation vibrator, the C-band lower radiation vibrator, the glass fiber reinforced plastic hollow pipe and the C-band feed balun are sequentially arranged from top to bottom; the C-band feed cable 5 sequentially penetrates through the dual-band antenna mounting flange 13, the C-band feed balun 4, the glass fiber reinforced plastic hollow pipe 3 and the C-band lower radiation array 2 from bottom to top, an inner core of the C-band feed cable 5 is welded to the C-band upper radiation array 1, and the C-band antenna is fed;
the outer conductor of the C-band feed cable 5 is fixed on the top of the UHF-band radiator in a welding mode; the antenna protection cover is fixed at the top of the dual-frequency antenna mounting flange, and the C-band antenna and the UHF-band antenna cover are arranged in a cavity formed by the antenna protection cover and the dual-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, foaming agents are filled in a cavity formed by the antenna protection cover and the dual-frequency antenna mounting flange.
Furthermore, the top of the antenna protection cover is of a necking structure, and the top of the antenna protection cover is provided with an opening; the C-frequency band radiation oscillator and the C-frequency band feed balun are positioned at a necking structure of the antenna housing; the top opening of the antenna protection cover is provided with a cover cap, and epoxy resin glue is bonded between the cover cap and the top opening.
Further, the C-band feed balun is a hollow aluminum circular tube used as a choke sleeve, and the theoretical length of the C-band feed balun is a quarter wavelength of the center frequency of the C-band feed balun.
The following is a more specific example:
referring to fig. 1 and 2, the present embodiment includes a C-band upper radiating element 1, a C-band lower radiating element 2, a glass fiber reinforced plastic hollow tube 3, a C-band feed balun 4, a C-band feed cable 5, a UHF-band radiator 6, a nylon block 7, an antenna protection cover 8, a glass fiber reinforced plastic cover cap 9, a C-band antenna radio frequency socket 10, a UHF-band antenna radio frequency socket 11, a filling foaming agent 12, and a dual-band antenna mounting flange 13. The C-band feed cable 5 sequentially penetrates through the dual-band antenna mounting flange 13, the C-band feed balun 4, the glass fiber reinforced plastic hollow pipe 3 and the C-band lower radiation array 2 from bottom to top, finally, an inner core of the cable is welded to the C-band upper radiation array 1 to feed the C-band antenna, and an outer conductor of the C-band feed cable 5 is welded to the C-band feed balun 4 and the C-band lower radiation 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 under the C-band. The outer conductor of the C-band feeder cable 5 is fixed to the top of the UHF-band radiator 6 by welding. The UHF frequency range radiator 6 is clamped in the middle of the nylon block 7 and fixed through screws. An inner core of the UHF antenna radio frequency socket 11 is welded at the bottom of the UHF radiator 6, and an outer conductor is screwed on the dual-frequency antenna mounting flange 13 to feed the UHF antenna.
In the C-band omni-directional antenna and the UHF-band omni-directional antenna of this embodiment, the feed cable of the C-band antenna is connected to the radiator of the UHF antenna by welding. Then, the foaming agent is used for filling the inside of the antenna, and the cover cap is bonded and sealed by epoxy resin glue.
The C-band omnidirectional antenna comprises a C-band feed cable, a C-band feed balun, a glass fiber reinforced plastic hollow pipe, a C-band lower radiation array and a C-band upper radiation array. And the outer conductor of the C-band feed cable is welded to the C-band feed balun and the C-band lower radiating array. The inner core of the cable is welded to the radiating array on the C frequency band.
The C-band feed balun is a hollow aluminum circular tube with the outer diameter of 10mm, is equivalent to a choke sleeve, has the theoretical length of one quarter wavelength of the center frequency, and 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 oscillator arms, so that the currents on the two arms of the oscillator 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, the corners of the UHF frequency band antenna radiator are symmetrically provided with a chamfer, and the length of a single side of the chamfer is 20 mm.
The outer conductor of the C-band feed 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 dual-band antenna mounting flange, so that a quarter-wavelength shunt balancer is formed for the UHF antenna, the quarter-wavelength shunt balancer participates in matching of the UHF antenna, and a radiation pattern of the UHF antenna is not influenced.
The foaming agent is carried out after the welding work of the antenna is finished, a foaming agent AB material is proportioned and poured into the antenna housing, the antenna housing is expanded out through an upper opening, the inside is filled, and the cap is bonded with an epoxy resin glue to close the opening.
Claims (5)
1. A C/UHF dual-band broadband composite omnidirectional antenna comprises a C-band antenna and a UHF-band antenna; the C-band antenna mainly comprises a C-band radiation 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 pipe, an antenna protective cover and a dual-frequency antenna mounting flange; the UHF frequency range radiator (6) is vertically fixed on the upper surface of the dual-frequency antenna mounting flange through a nylon block (7); an inner core of the UHF-band antenna radio-frequency socket (11) penetrates through the S dual-band antenna mounting flange and is welded at the bottom of the UHF-band radiator (6), and an outer conductor of the UHF-band antenna radio-frequency socket (11) is connected to the dual-band antenna mounting flange 13 in a threaded mode and feeds a UHF-band antenna;
the C-band radiation oscillator comprises a C-band upper radiation oscillator and a C-band lower radiation oscillator; the C-band upper radiation vibrator, the C-band lower radiation vibrator, the glass fiber reinforced plastic hollow pipe and the C-band feed balun are sequentially arranged from top to bottom; the C-band feed cable (5) sequentially penetrates through the dual-band antenna mounting flange (13), the C-band feed balun (4), the glass fiber reinforced plastic hollow pipe (3) and the C-band lower radiation array (2) from bottom to top, an inner core of the C-band feed cable (5) is welded to the C-band upper radiation array (1), and the C-band antenna is fed;
the outer conductor of the C-band feed cable (5) is fixed to the top of the UHF-band radiator in a welding mode; the antenna protection cover is fixed at the top of the dual-frequency antenna mounting flange, and the C-band antenna and the UHF-band antenna cover are arranged in a cavity formed by the antenna protection cover and the dual-frequency antenna mounting flange.
2. The C/UHF dual-band broadband composite omnidirectional antenna of claim 1, wherein the distance from the top of the radiating element on the C band to the bottom of the UHF band radiator is one quarter of the UHF wavelength.
3. The C/UHF dual-band broadband composite omnidirectional antenna according to claim 1, wherein a cavity formed by the antenna protection 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 protection cover is of a necking structure, and the top is an opening; the C-frequency band radiation oscillator and the C-frequency band feed balun are positioned at a necking structure of the antenna housing; the top opening of the antenna protection cover is provided with a cover cap, and epoxy resin glue is bonded between the cover cap and the top opening.
5. The C/UHF dual-band broadband composite omnidirectional antenna of claim 1, wherein the C-band feed balun is a hollow aluminum circular tube used as a choke sleeve, and has a length of one quarter wavelength of a 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 |
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| 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 true CN114824760A (en) | 2022-07-29 |
| CN114824760B CN114824760B (en) | 2023-12-29 |
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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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| Publication number | Publication date |
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| CN114824760B (en) | 2023-12-29 |
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