CN102013562A - Broadband bipolarizing antenna - Google Patents
Broadband bipolarizing antenna Download PDFInfo
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- CN102013562A CN102013562A CN2010102980538A CN201010298053A CN102013562A CN 102013562 A CN102013562 A CN 102013562A CN 2010102980538 A CN2010102980538 A CN 2010102980538A CN 201010298053 A CN201010298053 A CN 201010298053A CN 102013562 A CN102013562 A CN 102013562A
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Abstract
The invention relates to a broadband bipolarizing antenna which comprises a reflecting cavity, a parasitic unit, a patch radiating unit and two coaxial feed cables, wherein the patch radiating unit is formed by crossing four petal-shaped metal patches with same structures and sizes; the parasitic unit is supported and fixed above the reflecting cavity by a medium support rod; the patch radiating unit is fixedly installed on the top of the reflecting cavity; each coaxial feed cable is connected with a pair of symmetrical metal patches, i.e. an outer conductor of one coaxial feed cable is welded on the metal patches; and an inner conductor of each coaxial feed cable is welded on the metal patch which is symmetrical with the inner conductor by a bridging piece. By using the parasitic unit and the petal-shaped patch radiating unit, the invention expands the working bandwidth, obtains favorable standing-wave ratio characteristics and directional diagram main lobe characteristics and finishes broadband design; and by using the petal-shaped patch radiating unit, the invention overcomes the phenomena of relative narrower impedance bandwidth of the rhombic patch and division of the directional diagram main lobe of the raindrop-shaped patch at the high frequency end to a certain extent by changing the radian of the patches and can optimize and configure performance between the standing-wave ratio and the directional diagram main lobe.
Description
Technical field
The present invention relates to a kind of miniaturization broadband dual polarized antenna, particularly relate to and a kind ofly improve the broadband dual polarized antenna of antenna standing wave ratio, belong to antenna technical field based on parasitic element, special paster radiative unit structure.
Background technology
Reconnaissance spacecraft is to be used to detect receive enemy's ELECTROMAGNETIC RADIATION SIGNATURE to obtain the artificial earth satellite of enemy's information.The reconnaissance satellite of geo-stationary orbit has its characteristics, and it can detect the electromagnetic wave signal of receiving the antenna service area round-the-clock, on a large scale, and signal stabilization, spectral range are wide.Making full use of the outer space resource is the battle reconnaissance monitor service, is just becoming the characteristics of information age local war.Therefore, study spaceborne electronic reconnaissance technology, follow the tracks of, monitor the various signals such as communication, radar and guided missile remote measuring and controlling in enemy zone, has an important effect in that the strategic or tactical in future is on, it can not only understand the dynamically military of enemy, also the enemy is had great deterrent effect.And because the scouting signal is non-co-operation signal, so require antenna that extremely wide bandwidth of operation is arranged, and have the dual polarization ability, the dual-polarized antenna of broadband becomes pressing for of reconnaissance spacecraft application.
Detect the fruit of producing effects in order to improve, require the antenna whole world to cover, this just needs a large amount of antenna feed, in view of the specific (special) requirements of the satellite platform of using to antenna, antenna not only will satisfy the electrical performance indexes requirement, because the feed battle array is on a grand scale, be the layout requirement that adapts to platform, envelope size, the architectural characteristic of antenna also there is very big requirement.Existing disclosed or known broadband dual polarized antenna is difficult to satisfy simultaneously the application demand of electrical property and structural behaviour.
At present the paster radiating element of existing such antenna adopts the design of the paster radiating element of rhombus, square or raindrop shape more, but there is the impedance bandwidth relative narrower in square, rhombus paster, and raindrop shape paster exists the major lobe of directional diagram in the high-end distinguish phenomenon of frequency.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, provide a kind of by using the petal metal patch of parasitic element and cross to realize the dual-polarized antenna of broadband, realized that antenna is at L/S frequency range (0.8GHz～2.7GHz) work.
Technical solution of the present invention is: a kind of broadband dual polarized antenna, comprise reflection cavity, parasitic element, paster radiating element and coaxial feeder cables, the paster radiating element is by four structures, measure-alike petal metal patch right-angled intersection forms, parasitic element is supported and fixed on the top of reflection cavity by medium pole, the paster radiating element is fixedly mounted on the top of reflection cavity, use two coaxial feeder cables, every coaxial feeder cables is connected with the metal patch of a pair of symmetry, promptly the outer conductor of a coaxial feeder cables is welded on the metal patch, and the inner wire of coaxial feeder cables is welded on the metal patch symmetrical with it by jumper.
Described parasitic element is the metal cavitg of open top, bottom seal, and the cross section can be circular, square, triangle or abnormity.
Described paster radiating element adopts printed circuit board technology, four petal metal patches of etching on the copper facing dielectric-slab.
Described reflection cavity is the metal cavitg of open top, bottom seal.
Design principle of the present invention:
Dipole antenna is a kind of broad-band antenna that can realize miniaturization, adds reflection cavity behind at it and can realize one-way radiation.The present invention transforms traditional right-angled intersection dipole, changes the shape of paster radiating element, and increases the parasitic element structure, and the standing wave and the major lobe of directional diagram of L/S frequency range internal antenna is optimized.The present invention is by increasing parasitic element and using the design of petal paster radiating element for the right-angled intersection dipole antenna, through rational structure combination and optimization, realized that (0.8GHz～2.7GHz) good standing-wave ratio and major lobe of directional diagram performance are arranged has reached design object in the L/S frequency range.
In order to realize the designing requirement in broadband, adopt pack into reflection cavity and place the antenna form of parasitic element above it of a right-angled intersection dipole.The specific design thinking is as follows: antenna can (work in the 0.8GHz～2.7GHz) have carried out using the design of parasitic element in this antenna in the L/S frequency range in order to make; In order to realize distributing rationally of major lobe of directional diagram characteristic and standing-wave ratio, use the designing technique of petal paster radiating element form, by changing the radian of chip unit, obtained in the L/S frequency range (major lobe of directional diagram characteristic that 0.8GHz～2.7GHz) is good, and the broadband design key of this antenna is realized for the design of use by parasitic element and paster radiating element shape.
Such Antenna Design before this adopts below the paster radiating element more is placed a tuning plates and comes broadening antenna impedance bandwidth, the present invention improves the antenna standing wave ratio performance by using parasitic element, and antenna can be obtained than adopting the wideer impedance bandwidth of tuning plates.
The paster radiating element of such antenna before this adopts the design of the paster radiating element of rhombus, square or raindrop shape more, do not use petal paster radiative unit structure.The present invention has used petal paster radiating element, change by the paster radian, remedy the rhombus paster impedance bandwidth relative narrower and the raindrop shape paster major lobe of directional diagram to a certain extent in the high-end distinguish phenomenon of frequency, can distribute the performance between the standing-wave ratio and the major lobe of directional diagram rationally.
The present invention compared with prior art beneficial effect is:
(1) the present invention is by the exquisiteness transformation to original right-angled intersection dipole structure, parasitic element and petal paster radiating element have been used, broadening bandwidth of operation, obtained standing-wave ratio characteristic good in the frequency band that requires and major lobe of directional diagram characteristic, finished the broadband design;
(2) integrated application of the present invention right-angled intersection dipole structure, parasitic element structure and reflection cavity, carry out the antenna global design, make antenna can be operated in L/S frequency range (0.8GHz～2.7GHz), good standing-wave ratio performance and good major lobe of directional diagram characteristic are arranged in whole frequency band;
(3) the present invention adopts parasitic element, can optimize the standing-wave ratio characteristic of entire antenna, has obtained broadband performance, and (0.8GHz～2.7GHz) receive frequency range has put into practice the mentality of designing of parasitic element broadening antenna impedance bandwidth to have covered desired L/S;
(4) the present invention has transformed rhombus paster radiating element and raindrop shape paster radiating element, obtains petal metal patch by increasing by an arc section at rhombus paster radiating element commonly used, to a certain extent broadening impedance bandwidth; Simultaneously, by regulating the radian of arc section, can optimize the high-end major lobe of directional diagram performance of antenna, the relation of reasonable configuration impedance bandwidth and directional diagram bandwidth, realized the dual-polarized instructions for use of antenna, and realized that (in the frequency range of 0.8GHz～2.7GHz), antenna has good standing-wave ratio characteristic and major lobe of directional diagram characteristic at the L/S that requires;
(5) the present invention has used petal paster radiating element, change by the paster radian, remedy the rhombus paster impedance bandwidth relative narrower and the raindrop shape paster major lobe of directional diagram to a certain extent in the high-end distinguish phenomenon of frequency, can distribute the performance between the standing-wave ratio and the major lobe of directional diagram rationally;
(6) the present invention has realized dual polarization, and is simple in structure, is easy to processing, and simultaneously (frequency range of 0.8GHz～2.7GHz) is broadband character, has potential frequency application ability, comprises the reception of this in-band signal etc. owing to cover L/S;
(7) principle of the invention is simple, design easily, have cost low, use convenience, function admirable, be convenient to advantage such as extensive application, and thisly come the method for designing of broadening impedance bandwidth and antenna structure to have very strong practicality by use parasitic element;
(8) mentality of designing of the present invention can be used for not only that (0.8GHz～2.7GHz) design of antenna also can be used for the broad-band antenna design of frequency ranges such as UHF, C/X as the L/S frequency range.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a paster radiative unit structure schematic diagram of the present invention;
The antenna standing wave ratio simulation curve figure of Fig. 3 for adopting the present invention to obtain;
Fig. 4 obtains 0.8GHZ antenna pattern simulation curve figure for adopting the present invention;
Fig. 5 obtains 2.7GHZ antenna pattern simulation curve figure for adopting the present invention.
Embodiment
The present invention is with the right-angled intersection dipole reflection cavity miniaturization all channel antenna of packing into as shown in Figure 1.Form by reflection cavity 1, parasitic element 2, paster radiating element 3 and feeder cable 4 etc., paster radiating element 3 is dipole chip units of right-angled intersection, realized the dual polarization of antenna, reflection cavity 1 is a metallic cavity, can guarantee the antenna one-way radiation, parasitic element 2 is a metallic cavity, is placed on the top of paster radiating element 3.The present invention realizes the broadband performance of L/S frequency range by the parasitic element of right-angled intersection dipole paster radiating element and particular design, covers the working frequency range of 0.8GHZ～2.7GHZ.Because the design of the novelty of paster radiating element and parasitic element makes this antenna become a kind of novel miniaturization broadband dual polarized antenna.
The performance that the antenna of this structure will be realized is that good standing-wave ratio characteristic and pattern characteristics are arranged in the bandwidth of 3 multi-octaves of 0.8GHz～2.7GHz.As Fig. 2～4 simulation curves, characteristics such as it is very wide that the present invention has impedance bandwidth, and major lobe of directional diagram characteristic is good, this Principle of Antenna is simple, and processing technology is simple, is easy to processing and realizes, and is practical, and structural strength is better, and overall performance is good.
The present invention is in L/S frequency range (characteristics such as 0.8GHz～2.7GHz) has good standing-wave ratio newly can (as shown in Figure 3), good major lobe of directional diagram characteristic and two-wire polarization reception.Be depicted as the antenna pattern simulation curve figure that adopts the present invention to obtain 0.8GHZ and 2.7GHZ as Fig. 4,5, Fig. 4,5 abscissa are that angle, the ordinate of aerial radiation direction and Z axle is the radiant power amplitude.This Principle of Antenna is simple, compact conformation, and processing technology is simple, is easy to processing and realizes, and is practical, and structural strength and rigidity are better, and overall performance is good.
A kind of miniaturization broadband of the present invention dual polarized antenna, by in antenna, using the innovative design of parasitic element, changed original paster radiating element shape, creationaryly use petal paster radiating element, finished L/S frequency range (0.8GHz～2.7GHz) miniaturization broadband dual polarized antenna design.Use parasitic element to improve the standing-wave ratio characteristic of antenna and distribute the design philosophy that concerns (radian is big more, and impedance bandwidth is big more, and the directional diagram bandwidth is narrow more) between impedance bandwidth and directional diagram bandwidth rationally and also have novelty by the radian that changes paster.
The present invention can be applied in the multiple systems, particularly promotes and opened up related application.The feed that the present invention not only can be used for big antenna uses, and the present invention itself simultaneously also is broadband, the miniaturization of a secondary function admirable and can realizes dual-polarized antenna, can be applied in the electronic reconnaissance field.And since its volume little, in light weight, be convenient on star, install, in the multi-beam antenna of broadband, when need using large-scale feed battle array very big advantage is arranged, have very strong competitiveness.
Miniaturization broadband dual polarized antenna of the present invention is based on self Scheme Characteristics, has that principle is simple, cost is low, application is convenient, function admirable, is convenient to the characteristics such as extensive application, has very strong competitiveness.
The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (4)
1. broadband dual polarized antenna, it is characterized in that: comprise reflection cavity (1), parasitic element (2), paster radiating element (3) and coaxial feeder cables (4), paster radiating element (3) is by four structures, measure-alike petal metal patch right-angled intersection forms, parasitic element (2) is supported and fixed on the top of reflection cavity (1) by medium pole (5), paster radiating element (3) is fixedly mounted on the top of reflection cavity (1), use two coaxial feeder cables (4), every coaxial feeder cables (4) is connected with the metal patch of a pair of symmetry, promptly the outer conductor of a coaxial feeder cables (4) is welded on the metal patch, and the inner wire of coaxial feeder cables (4) is welded on the metal patch symmetrical with it by jumper.
2. a kind of broadband dual polarized antenna according to claim 1 is characterized in that: described parasitic element (2) is the metal cavitg of open top, bottom seal, and the cross section can be circular, square, triangle or abnormity.
3. a kind of broadband dual polarized antenna according to claim 1 is characterized in that: described paster radiating element (3) adopts printed circuit board technology, four petal metal patches of etching on the copper facing dielectric-slab.
4. a kind of broadband dual polarized antenna according to claim 1 is characterized in that: described reflection cavity (1) is the metal cavitg of open top, bottom seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102980538A CN102013562A (en) | 2010-09-29 | 2010-09-29 | Broadband bipolarizing antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102980538A CN102013562A (en) | 2010-09-29 | 2010-09-29 | Broadband bipolarizing antenna |
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| CN102013562A true CN102013562A (en) | 2011-04-13 |
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| CN2010102980538A Pending CN102013562A (en) | 2010-09-29 | 2010-09-29 | Broadband bipolarizing antenna |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508030A (en) * | 2017-09-03 | 2017-12-22 | 电子科技大学 | A kind of broadband high-isolation base station dual polarized antenna |
| CN110011041A (en) * | 2019-03-22 | 2019-07-12 | 深圳大学 | Novel mobile communication base station antenna device based on 3D medium printing |
| CN116666974A (en) * | 2023-07-24 | 2023-08-29 | 南京纳特通信电子有限公司 | Double-feed polarization-changeable ultra-wideband microstrip oscillator antenna |
Citations (5)
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|---|---|---|---|---|
| CN2702458Y (en) * | 2003-12-26 | 2005-05-25 | 京信通信系统（广州）有限公司 | A dual polarized wide-band antenna radiating element |
| US20090096700A1 (en) * | 2007-10-15 | 2009-04-16 | Jaybeam Wireless | Base station antenna with beam shaping structures |
| CN101436715A (en) * | 2008-12-05 | 2009-05-20 | 邢红兵 | Dual polarization back cavity type radiating antenna |
| CN101626112A (en) * | 2008-07-11 | 2010-01-13 | 广东通宇通讯设备有限公司 | Broadband full-wave symmetrical element antenna |
| CN101635392A (en) * | 2008-07-21 | 2010-01-27 | 华为技术有限公司 | Antenna unit, coaxial radiation assembly and antenna |
-
2010
- 2010-09-29 CN CN2010102980538A patent/CN102013562A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2702458Y (en) * | 2003-12-26 | 2005-05-25 | 京信通信系统（广州）有限公司 | A dual polarized wide-band antenna radiating element |
| US20090096700A1 (en) * | 2007-10-15 | 2009-04-16 | Jaybeam Wireless | Base station antenna with beam shaping structures |
| CN101626112A (en) * | 2008-07-11 | 2010-01-13 | 广东通宇通讯设备有限公司 | Broadband full-wave symmetrical element antenna |
| CN101635392A (en) * | 2008-07-21 | 2010-01-27 | 华为技术有限公司 | Antenna unit, coaxial radiation assembly and antenna |
| CN101436715A (en) * | 2008-12-05 | 2009-05-20 | 邢红兵 | Dual polarization back cavity type radiating antenna |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508030A (en) * | 2017-09-03 | 2017-12-22 | 电子科技大学 | A kind of broadband high-isolation base station dual polarized antenna |
| CN107508030B (en) * | 2017-09-03 | 2024-02-23 | 电子科技大学 | Broadband high-isolation base station dual-polarized antenna |
| CN110011041A (en) * | 2019-03-22 | 2019-07-12 | 深圳大学 | Novel mobile communication base station antenna device based on 3D medium printing |
| CN116666974A (en) * | 2023-07-24 | 2023-08-29 | 南京纳特通信电子有限公司 | Double-feed polarization-changeable ultra-wideband microstrip oscillator antenna |
| CN116666974B (en) * | 2023-07-24 | 2023-09-22 | 南京纳特通信电子有限公司 | Double-feed polarization-changeable ultra-wideband microstrip oscillator antenna |
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Application publication date: 20110413 |