CN103855463A - Anti-interference antenna array capable of increasing bottom elevation gains - Google Patents
Anti-interference antenna array capable of increasing bottom elevation gains Download PDFInfo
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- CN103855463A CN103855463A CN201410076971.4A CN201410076971A CN103855463A CN 103855463 A CN103855463 A CN 103855463A CN 201410076971 A CN201410076971 A CN 201410076971A CN 103855463 A CN103855463 A CN 103855463A
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Abstract
The invention discloses an anti-interference antenna array capable of increasing bottom elevation gains. The anti-interference antenna array is characterized by comprising a plurality of antenna units and a coaxial connector. The coaxial connector is connected with the antenna units, and the antenna units are arranged at certain intervals and comprise medium radiating bodies, antenna gaskets, medium circuit boards and circuit board supports, wherein the medium circuit boards are arranged on the circuit board supports, the antenna gaskets are arranged between the reflection surfaces of the medium radiating bodies and the reflection surfaces of the circuit boards, and the antenna gaskets, the medium radiating bodies and the circuit boards are connected into a whole in a gluing or welding mode. The anti-interference antenna array has the advantages that low profile gains of the antenna units are high, isolation of the antenna units is high, the requirements for the performance of various receiving and transmitting antennae is met, machining is convenient to conduct due to the integrated design, and the antenna array is suitable for massive production.
Description
Technical field
The present invention relates to antenna technical field, relate to more specifically one and can be applicable in jamproof system, and each unit has the Beidou antenna array that improves low section high-gain.
Background technology
In cruising missile Data-Link system, antijamming capability and the gain of low section are all key indexs.Array antenna technology is one of effective means further improving system rejection to disturbance ability at present, and therefore the application problem of array antenna technology in cruising missile Data-Link system also becomes an emphasis.
Be applied at present the circular polarized antenna of dipper system, GPS (global positioning system), mostly adopt the antenna of import microwave board material, realize circular polarization, miniaturization characteristic.Although these antenna section is low, can realize miniaturization, but because microwave board antenna is expensive, its production technology is more complicated, dielectric constant distributing homogeneity is poor, requirement on machining accuracy is higher, and after being heated, easily cause the deterioration of antenna performance, make in the design of large-sized array array antenna, application difficulty is large.
And Big Dipper jamproof system the inside, antenna element performance is except will meeting standing wave, bandwidth of operation, axial ratio, in the actual test of antenna system, the more important thing is that the gain that will meet the low section of antenna requires and the deviation in roundness requirement that gains, but in array antenna design, the reflecting surface of each antenna element surrounding of reflecting plate periphery all can not be symmetrical, causes antenna element to be subject to certain impact in the deviation in roundness of low section gain.
Consider above-mentioned situation, be necessary for a kind of novel antenna array scheme of jamproof system exploitation, provide than existing antenna and have higher low section gain, poor, the easy processing of gain deviation in roundness, the good aerial array of consistency.
Summary of the invention
Object of the present invention is exactly the deficiency in order to solve prior art and the each unit integral degree of one that provides is high, novel structure, handling ease, and size also meets elevation gain anti-interference antenna array at the bottom of the raising of miniaturization requirement.
The present invention adopts following technical solution to realize above-mentioned purpose: a kind of end elevation gain anti-interference antenna array that improves, it is characterized in that, it comprises multiple antenna elements and coaxial connector, coaxial connector is connected with antenna element, each antenna element has certain interval mutually, antenna element comprises 1, working medium radiation body, 2, antenna pad, 3, dielectric line plate and 4, wiring board support, dielectric line plate is arranged on wiring board support, antenna pad is arranged between the reflecting surface and wiring board reflecting surface of working medium radiation body, and be connected as a single entity with gluing or welding manner.
As further illustrating of such scheme, in aerial array, the layout that arranges of multiple antenna elements is: centre arranges an antenna element as emission system, as receiving system, and be provided as the antenna element of GPS, GLONASS integrated positioning system at the antenna element excircle as receiving system at least four antenna elements of emission system surrounding setting.
Described aerial array comprises 11 antenna elements, as an antenna element D at center, the Big Dipper 1 generation emission system is set, the Big Dipper 1 generation emission system surrounding arranges 4 antenna element C, for the Big Dipper 1 generation receiving system, at the Big Dipper 1 generation receiving system excircle, 6 antenna elements are set, wherein two antenna element A arrange GPS, GLONASS integrated positioning system, and other 4 antenna element B arrange the Big Dipper 2 generation receiving system.
Described 11 antenna elements are arranged in same circular base plate, the working medium radiation body of each antenna element is rectangular, antenna element D is arranged on the center of circular base plate, 4 antenna element C and 4 antenna element B form centered by the circular base plate center of circle in, outer shroud distributed architecture, 4 antenna element B are cross distribution, 4 antenna element C are separately positioned on the interval location between every two antenna element B, the inner side edge of 4 antenna element C is all connected with four corners of antenna element D, two antenna element A are separately positioned on the interval location between the antenna element B in the outside that is two antenna element C that diagonal angle distributes.
Spacing between described similar antenna element is half-wavelength.
Described coaxial connector is MCX connector; Antenna element adopts square patch corner cut and two kinds of modes of two point feed to realize circular polarization.
It is 28mm*28mm that the antenna pad of described each antenna element adopts length and width, thickness is the metallic gasket of 2～6mm, can carry out antenna holder high, although the low section gain of antenna is along with raising highly trend from low to high increases, but highly exceed after OK range, low section gain variation, therefore, metallic gasket maximum ga(u)ge can not exceed 6mm.
The described Big Dipper 1 generation emission system adopts the ceramic antenna of 28*28*4, and dielectric constant is 8-11; The ceramic antenna of system unit 25*25*3 is received in the Big Dipper 1 pickup, and dielectric constant is 8; The ceramic antenna of 35*35*6 for the Big Dipper 2 generation receiving system, dielectric constant is 8-11; GPS, the GLONASS integrated positioning system unit ceramic antenna of 25*25*4, dielectric constant is 25.
The inner core of described coaxial connector is connected by dielectric line plate with working medium radiation body, together with working medium radiation body, antenna pad melt by soldering with dielectric line plate, sound construction is reliable, and antenna pad has via hole on feedback pin position, guarantee the radiating surface of working medium radiation body and the isolation of the reflecting surface of antenna pad.
In described aerial array, the layout that arranges of multiple antenna elements is: centre arranges an antenna element as receive-transmit system, at least four antenna elements of emission system surrounding setting as receiving system.
The antenna element arranging in the middle of described is the Big Dipper dual-mode antenna system of receiving system and the combination of emission system lamination, between receiving system and emission system layer, metallic gasket is set; Described Big Dipper dual-mode antenna system adopts the Big Dipper 1 generation dual-mode antenna, and the antenna element of surrounding receiving system adopts the Big Dipper 2 generation reception antenna.
Described as the antenna element of receive-transmit system be arranged in a circular base plate as the antenna element of emission system, be arranged on the circular base plate center of circle as the antenna element of receive-transmit system, quantity as the antenna element of emission system is 4, centered by the circular base plate center of circle, and crossing distribution.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is:
The present invention adopts the antenna of medium dielectric constant as the basic structure of antenna array, and each unit increase metallic gasket, makes antenna in each system, realize the performance index of low section high-gain, all improves 1～2DBi than the low section gain of not have Gasket Antenna; Antenna performance is improved significantly, meet the requirement of the low section gain of anti-jamming array array antenna; And approach half-wavelength with the interval between band antenna unit, isolation between antennas obviously improves, reduce intercoupling of antenna.Moreover this antenna array unit structural design is suitable, antenna handling ease, is applicable to batch production; Contrast with existing technology, there is positive and obvious effect.
Accompanying drawing explanation
Fig. 1 is the cellular construction profile of aerial array of the present invention;
Fig. 2 is the general structure schematic diagram of aerial array of the present invention;
Fig. 3 is the general structure profile of aerial array of the present invention;
Fig. 4 is the not shimming radiation schematic diagram of unit of aerial array of the present invention;
Fig. 5 is that the unit of aerial array of the present invention increases pad radiation schematic diagram;
Fig. 6 is the another kind of implementation of aerial array of the present invention;
Fig. 7 is the another kind of implementation structural representation of aerial array of the present invention.
Description of reference numerals: 1, antenna element; 1-a, antenna element D; 1-b, antenna element C; 1-c, antenna element A; 1-d, antenna element B; 1-1, working medium radiation body; 1-2, antenna pad; 1-3, dielectric line plate; 1-4, wiring board support; 2, coaxial connector; 3, circular base plate; 4, reception antenna unit; 5, transmission antenna unit; 6, metallic gasket 7, antenna element; 8-a, 8-b, 8-c, 8-d, antenna element.
Embodiment
Below in conjunction with specific embodiment, specific embodiment of the invention scheme is described in further detail.
As shown in Figure 1-Figure 3, a kind of end elevation gain anti-interference antenna array that improves of the present invention, it comprises multiple antenna elements 1 and coaxial connector 2, coaxial connector 2 is connected with antenna element 1, each antenna element 1 has certain interval mutually, antenna element 1 comprises working medium radiation body 1-1, antenna pad 1-2, dielectric line plate 1-3 and wiring board support 1-4, dielectric line plate 1-3 is arranged on wiring board support 1-4, antenna pad 1-2 is arranged between the reflecting surface and wiring board reflecting surface of working medium radiation body, and is connected as a single entity with gluing or welding manner.Wherein, working medium radiation body 1-1 adopts radiation ceramic, and dielectric line plate adopts PCB wiring board, and antenna pad is metallic gasket.In aerial array, the layout that arranges of multiple antenna elements is: centre arranges an antenna element as emission system, as receiving system, and be provided as the antenna element of GPS, GLONASS integrated positioning system at the antenna element excircle as receiving system at least four antenna elements of emission system surrounding setting.
The present embodiment, is the Beidou antenna array that can be applied in flying missile Data-Link jamproof system, is made up of 11 antenna elements and coaxial connector.As an antenna element D1-a at center, the Big Dipper 1 generation emission system is set, the Big Dipper 1 generation emission system surrounding arranges 4 antenna element C1-b, for the Big Dipper 1 generation receiving system, at the Big Dipper 1 generation receiving system excircle, 6 antenna elements are set, wherein two antenna element A1-c arrange GPS, GLONASS integrated positioning system, and other 4 antenna element B1-d arrange the Big Dipper 2 generation receiving system.The operating state of this antenna array can cover the multiple satellite systems including dipper system simultaneously, it is advantageous that: 1, between the antenna element of same frequency, be separated by and approach the half-wavelength of this operating frequency, each isolation between antennas is improved, reduce with coupling frequently; 2, antenna element D1-a is the Big Dipper 1 generation transmitting antenna, power stage is larger, easily the reception antenna of each system is caused to interference, therefore this unit is high to the insulation request of the each antenna element of antenna array, and this unit requires strict to elevation gain, therefore make it to be put in centre position, guarantee the distance of each element antenna and antenna element D1-a.In addition due to antenna element at center, by pad padded, reflectingly symmetrically, the deviation in roundness advantage and the elevation gain advantage that make antenna element D1-a in present design, have other schemes not possess; 3, crucial antenna element C1-b Unit tetra-and antenna element B1-d Unit tetra-form the main main body of this anti-interference antenna battle array simultaneously; its cross omnidirectional distribution design advantage is: each antenna is in the state of working alone; antenna array has the comprehensive inhibition interference performance without dead angle; elevation gain is larger, and the quenchable interference range of antenna array is wider; 4, the reception antenna co-operation of multisystem, through the contrast of multi-group data, lost efficacy the interference signal of single-frequency, strengthened the antijamming capability of antenna array.
Described 11 antenna elements are arranged in same circular base plate 3, the working medium radiation body of each antenna element is rectangular, antenna element D1-a is arranged on the center of circular base plate, 4 antenna element C1-b and 4 antenna element B1-d form centered by the circular base plate center of circle in, outer shroud distributed architecture, 4 antenna element B1-d are cross distribution, 4 antenna element C1-b are separately positioned on the interval location between every two antenna element B1-d, the inner side edge of 4 antenna element C is all connected with four corners of antenna element D, two antenna element A1-c are separately positioned on the interval location between the antenna element B in the outside that is two antenna element C that diagonal angle distributes.Each antenna element all takes to adopt ceramic radiation material to work alone, and mutually has certain interval, guarantees isolation.Spacing between similar antenna element is half-wavelength.
Shown in Figure 1, coaxial connector inner core is connected by dielectric line plate with radiation ceramic.Together with radiation ceramic, metallic gasket melt by high temperature soldering with dielectric line plate, sound construction is reliable.And metallic gasket has via hole on feedback pin position, guarantee aerial radiation face and metal mirror isolation.
What the present invention selected is that dielectric constant is 11-15 ceramic material, and thickness is 4mm, and dielectric line plate is FR4 sheet material, and dielectric constant is 4.4.Coaxial connector is the MCX connector of 50 ohm.This uses novel antenna element to adopt square patch corner cut and two kinds of modes of two point feed to realize circular polarization.
The diameter of circular base plate 3 of the present invention is 230mm, and shown in Fig. 2, antenna element A adopts 25*25*4 potsherd as radiation fin A, and dielectric constant is 26, and antenna element B adopts 35*35*6 potsherd as radiation fin B, and dielectric constant is 11; Antenna element C adopts 25*25*4 as radiation fin C, and dielectric constant is 9; Antenna element D adopts 28*28*4 potsherd as radiation fin D, and dielectric constant is 11.Owing to adopting ceramic material, antenna array scheme is realized the design of miniaturization.
Shown in Fig. 4 and Fig. 5, metallic gasket improves significantly to aerial array unit performance, and Fig. 4 is the directional diagram that does not add metallic gasket, and the elevation angle 20 degree gains are-2.6～-3.5dBi; Fig. 5 is the directional diagram that adds metallic gasket, and the elevation angle 20 degree gains are-0.9～-1.2dBi.Emulation shows with actual use all, increases pad antenna element performance is had clear improvement.Also be the core of antenna array scheme design of the present invention.
As shown in Figure 6 and Figure 7, in the present embodiment, in aerial array, the layout that arranges of multiple antenna elements is: centre arranges an antenna element 7 as receive-transmit system, at the setting of emission system surrounding at least four antenna element 8-a, 8-b, 8-c, 8-d as receiving system.The middle antenna element arranging is the Big Dipper dual-mode antenna system of receiving system and the combination of emission system lamination, between receiving system and emission system layer, metallic gasket is set.
Fig. 6 is the vertical view of another embodiment of the present invention, as the antenna element of receive-transmit system be arranged in a circular base plate as the antenna element of emission system, be arranged on the circular base plate center of circle as the antenna element of receive-transmit system, quantity as the antenna element of emission system is 4, centered by the circular base plate center of circle, crossing distribution.
Surrounding antenna element belongs to the Big Dipper 2 generation reception antenna, and temporary location belongs to the Big Dipper 1 generation dual-mode antenna.In Fig. 6 scheme due to antenna array limited space, this programme is realized the Miniaturization Design of the Big Dipper 2 generation receiving system by 35*35 new ceramic material, make antenna array in limited working range, form four unit cross orthogonal antenna battle arrays, guarantee beyond each isolation between antennas, can also realize comprehensive anti-interference.Suppress interference range than Y type three-element aerial battle array wider, have more antijamming capability.The profile that is this programme at Fig. 7, shown in figure, reception antenna unit 4 is combined into Big Dipper dual-mode antenna system with transmission antenna unit 5 laminations, carries out the optimization in performance, and realized by metallic gasket 6 by the solution of the present invention.At least the elevation angle 20 can be spent to gain by this scheme and improve 1dB, significantly improve antenna performance.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (10)
1. one kind is improved end elevation gain anti-interference antenna array, it is characterized in that, it comprises multiple antenna elements and coaxial connector, coaxial connector is connected with antenna element, each antenna element has certain interval mutually, and antenna element comprises working medium radiation body, antenna pad, dielectric line plate and wiring board support, and dielectric line plate is arranged on wiring board support, antenna pad is arranged between the reflecting surface and wiring board reflecting surface of working medium radiation body, and is connected as a single entity with gluing or welding manner.
2. elevation gain anti-interference antenna array at the bottom of raising according to claim 1, it is characterized in that, in aerial array, the layout that arranges of multiple antenna elements is: centre arranges an antenna element as emission system, as receiving system, and be provided as the antenna element of GPS, GLONASS integrated positioning system at the antenna element excircle as receiving system at least four antenna elements of emission system surrounding setting.
3. elevation gain anti-interference antenna array at the bottom of raising according to claim 2, it is characterized in that, described aerial array comprises 11 antenna elements, as an antenna element D at center, the Big Dipper 1 generation emission system is set, the Big Dipper 1 generation emission system surrounding arranges 4 antenna element C, for the Big Dipper 1 generation receiving system, at the Big Dipper 1 generation receiving system excircle, 6 antenna elements are set, wherein two antenna element A arrange GPS, GLONASS integrated positioning system, and other 4 antenna element B arrange the Big Dipper 2 generation receiving system.
4. elevation gain anti-interference antenna array at the bottom of raising according to claim 3, it is characterized in that, described 11 antenna elements are arranged in same circular base plate, the working medium radiation body of each antenna element is rectangular, antenna element D is arranged on the center of circular base plate, 4 antenna element C and 4 antenna element B form centered by the circular base plate center of circle in, outer shroud distributed architecture, 4 antenna element B are cross distribution, 4 antenna element C are separately positioned on the interval location between every two antenna element B, the inner side edge of 4 antenna element C is all connected with four corners of antenna element D, two antenna element A are separately positioned on the interval location between the antenna element B in the outside that is two antenna element C that diagonal angle distributes.
5. elevation gain anti-interference antenna array at the bottom of raising according to claim 4, is characterized in that, the spacing between described similar antenna element is half-wavelength; Described coaxial connector is MCX connector; Antenna element adopts square patch corner cut and two kinds of modes of two point feed to realize circular polarization; The inner core of described coaxial connector is connected by dielectric line plate with working medium radiation body, and together with working medium radiation body, antenna pad melt by soldering with dielectric line plate, sound construction is reliable, and antenna pad has via hole on feedback pin position.
6. according to elevation gain anti-interference antenna array at the bottom of the raising described in claim 1,2,3 or 4, it is characterized in that, it is 28mm*28mm that the antenna pad of described each antenna element adopts length and width, the metallic gasket that thickness is 2～6mm.
7. according to elevation gain anti-interference antenna array at the bottom of the raising described in claim 3 or 4, it is characterized in that, the described Big Dipper 1 generation emission system adopts the ceramic antenna of 28*28*4, and dielectric constant is 8-11; The ceramic antenna of system unit 25*25*3 is received in the Big Dipper 1 pickup, and dielectric constant is 8; The ceramic antenna of 35*35*6 for the Big Dipper 2 generation receiving system, dielectric constant is 8-11; GPS, the GLONASS integrated positioning system unit ceramic antenna of 25*25*4, dielectric constant is 25.
8. elevation gain anti-interference antenna array at the bottom of raising according to claim 1, it is characterized in that, in aerial array, the layout that arranges of multiple antenna elements is: centre arranges an antenna element as receive-transmit system, at least four antenna elements of emission system surrounding setting as receiving system.
9. elevation gain anti-interference antenna array at the bottom of raising according to claim 8, it is characterized in that, the antenna element arranging in the middle of described is the Big Dipper dual-mode antenna system of receiving system and the combination of emission system lamination, between receiving system and emission system layer, metallic gasket is set; Described Big Dipper dual-mode antenna system adopts the Big Dipper 1 generation dual-mode antenna, and the antenna element of surrounding receiving system adopts the Big Dipper 2 generation reception antenna.
10. elevation gain anti-interference antenna array at the bottom of raising according to claim 8 or claim 9, it is characterized in that, described as the antenna element of receive-transmit system be arranged in a circular base plate as the antenna element of emission system, be arranged on the circular base plate center of circle as the antenna element of receive-transmit system, quantity as the antenna element of emission system is 4, centered by the circular base plate center of circle, crossing distribution.
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| CN201410076971.4A CN103855463B (en) | 2014-03-04 | 2014-03-04 | Improve low elevation gain anti-interference antenna array |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105633572A (en) * | 2015-12-30 | 2016-06-01 | 航天恒星科技有限公司 | Multi-array-element conformal antenna |
| CN108107453A (en) * | 2017-12-19 | 2018-06-01 | 陕西美星恒祺新能源科技有限公司 | A kind of array antenna is applied to the device of multi-mode satellite receiving device |
| CN110954924A (en) * | 2019-12-10 | 2020-04-03 | 上海航天控制技术研究所 | Integrated anti-interference design method for Beidou satellite terminal equipment |
| TWI765621B (en) * | 2021-03-25 | 2022-05-21 | 神準科技股份有限公司 | Dual feed antenna |
| CN114914716A (en) * | 2022-05-07 | 2022-08-16 | 中国电子科技集团公司第十研究所 | Beidou all-through integrated antenna |
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| CN108107453A (en) * | 2017-12-19 | 2018-06-01 | 陕西美星恒祺新能源科技有限公司 | A kind of array antenna is applied to the device of multi-mode satellite receiving device |
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| CN114914716A (en) * | 2022-05-07 | 2022-08-16 | 中国电子科技集团公司第十研究所 | Beidou all-through integrated antenna |
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