CN204834888U - Close coupling broadband feed array - Google Patents
Close coupling broadband feed array Download PDFInfo
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- CN204834888U CN204834888U CN201520600516.XU CN201520600516U CN204834888U CN 204834888 U CN204834888 U CN 204834888U CN 201520600516 U CN201520600516 U CN 201520600516U CN 204834888 U CN204834888 U CN 204834888U
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Abstract
The utility model discloses a close coupling broadband feed array antenna, it relates to feed array antenna device in communication, the observing and controlling field. It is by corner reflector 1, close coupling linear array 2, 3 triplexs in the spine chamber. Its adopts according to communication, observes and controls has wide, a wide angle sweep of standing wave bandwidth to what broadband, beam scanning technique required the design, high -gain feed structure, the utility model discloses the characteristics that have still that processing is simple, feeder and radiating element unify, the utility model discloses high -gain broadband, wide angle scanning antenna's manufacturing in specially adapted communication, the observing and controlling system.
Description
Technical field
The utility model relates to a kind of close coupling broadband feed array in communication, measurement and control area, the feed that the utility model is comparatively applicable to being applied to parabolic-cylinder antenna uses, the technical indicator of broadband, high-gain, large-angle scanning can be realized, be applicable in system of broadband wireless communication.
Background technology
The antenna system demand that can scan broadband in communication, TT&C system is at present more and more urgent, broadband performance antenna system can be realized various, but the radiating element report realizing broadband beams scanning is less, be summed up and mainly contain following several version, though respectively have feature in performance, all there is certain deficiency.
1, Vivaldi printed antenna antenna element: this form antenna structure is simple, and machining accuracy is high, can realize the bandwidth of several frequency multiplication, and beamwidth is narrower, poor structural reliability, and cannot use as the feed of cylinder antenna, engineering practicability is poor.
2, enclosed type ridged horn antenna, this form antenna standing wave, directional diagram broader bandwidth can realize several Multiple frequency design usually, are typically used as broadband calibration horn antenna and use.Because loudspeaker opening size is comparatively large, cannot meet the requirement as phased array antenna Small Distance group battle array, have certain limitation as wideband phased array antenna unit, particularly when working frequency range is higher, the space of feed is less, realizes feed difficulty larger.
3, umbrella shape printed antenna: this form antenna form can realize the bandwidth of about 40%, can be used as the radiating element of phase-array scanning, but cannot meet the bandwidth of frequency multiplication.
Utility model content
The purpose of this utility model is avoid the weak point in above-mentioned background technology and provide a kind of close coupling broadband feed array, the utility model feature is, feed as cylinder antenna uses, there is broadband standing wave, broadband radiation characteristic, compact conformation, feed are simple, loss is low, can realize feed and radiating element integrated design.
The utility model is achieved in that a kind of close coupling broadband feed array, comprise corner reflector 1, close coupling linear array 2 and ridge chamber 3, the bottom of corner reflector 1 is connected with the top in ridge chamber 3, the bottom of close coupling linear array 2 is fixed on the base plate in ridge chamber 3, it is characterized in that: described close coupling linear array 2 comprises multiple metal Vivaldi antenna element 4, each metal Vivaldi antenna element 4 is made up of left ridge sheet and right ridge sheet, the bottom of left ridge sheet is provided with feed inner wire integrated with left ridge sheet, the cavity passed for feed inner wire is offered in right ridge sheet, feed inner wire arranges with cavity for concentric and and leave gap between cavity inner wall.
Wherein, two reflecting plates of corner reflector 1 are positioned at the both sides of close coupling linear array 2.
Wherein, the bottom between left ridge sheet and right ridge sheet is provided with reflection cavity 5.
Technical comparing of the present utility model has the following advantages:
1, the utility model is provided with close coupling broadband feed array 1 parts, this close coupling broadband feed array is made up of corner reflector 1, close coupling linear array 2, ridge chamber 3 three part, the irradiation to parabolic cylinder can be realized in broadband, obtain the antenna pattern of high-gain narrow beam, the close coupling array of tight type arrangement can realize 6 ~ 7 frequency multiplication standing waves and is less than 2, and wide angle scanning can realize ± and 45 °.
2, the whole antenna structure of the utility model is simple, compact, compare with other Vivaldi printed antennas, reduce the dielectric loss of antenna, the feed of antenna achieves integrated design simultaneously, overcome the technical barrier of narrow space, this antenna solves the technical barrier of ultra-wideband antenna scanning.
Accompanying drawing explanation
Fig. 1 is the utility model three-dimensional structure schematic diagram.
Fig. 2 is the end view of the utility model antenna structure.
Fig. 3 is the utility model antenna close coupling linear array structure schematic diagram.
Embodiment
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of close coupling broadband feed array, comprise corner reflector 1, close coupling linear array 2 and ridge chamber 3, the bottom of corner reflector 1 is connected with the top in ridge chamber 3, the bottom of close coupling linear array 2 is fixed on the base plate in ridge chamber 3, described close coupling linear array 2 comprises multiple metal Vivaldi antenna element 4, each metal Vivaldi antenna element 4 is made up of left ridge sheet and right ridge sheet, the bottom of left ridge sheet is provided with feed inner wire integrated with left ridge sheet, the cavity passed for feed inner wire is offered in right ridge sheet, feed inner wire arranges with cavity for concentric and and leave gap between cavity inner wall.Two reflecting plates of corner reflector 1 are positioned at the both sides of close coupling linear array 2.Bottom between left ridge sheet and right ridge sheet is provided with reflection cavity 5.
In the utility model, the effect in back of the body chamber 3 is to provide signal shorts face, simultaneously as the supporter of reflector 1 and close coupling linear array 2; Compact arranged metal Vivaldi antenna element 4, unit ridge follows exponential function curve form, overcome the radiation excitation of traditional half-wave a period of time antenna, namely under being less than the prerequisite of radiating element half-wavelength, what is more important, Small Distance arrangement meets the rigors of phased array antenna to unit interval, and in broadband scanning system, this point is particularly important.Coaxial 6 feeds of square that antenna element adopts air dielectric to fill, but benefit feed and the radiant body of this design realize integrated fabrication design, ensure that reliability, the consistency of feed on the one hand, avoid the error that human weld brings on the other hand, and inconsistency, achieve again the low-loss transmission of signal simultaneously; Ellipse reflection cavity 5 ensure that the broadband matching properties of antenna element, and contour structures is simple, can radiating element integration fabrication design; The effect of corner reflector 1 is the beamwidth of control antenna linear array H surface radiation directional diagram, ensure that and irradiates paraboloidal the best.Three part-structures are assembled into an antenna after adopting parts processing again, this ensure that the low-cost design of antenna.
Utility model works principle is as follows: when transmitting a signal, square coaxial 6 connects transmitter and transmits, encourage each metal Vivaldi antenna element 4, and be radiated free space, and synthesize at space signal power, when different phase combination put by transmitter, space just forms the different wave beam pointed to.The reception of antenna and be emitted as reciprocity process, electromagnetic signal is exciter electric current on each metal Vivaldi antenna element 4, and extracts signals by square coaxial 6, outputs to external receiver after entering into power division network.
Claims (3)
1. a close coupling broadband feed array, comprise corner reflector (1), close coupling linear array (2) and ridge chamber (3), the bottom of corner reflector (1) is connected with the top of ridge chamber (3), the bottom of close coupling linear array (2) is fixed on the base plate of ridge chamber (3), it is characterized in that: described close coupling linear array (2) comprises multiple metal Vivaldi antenna element (4), each metal Vivaldi antenna element (4) is made up of left ridge sheet and right ridge sheet, the bottom of left ridge sheet is provided with feed inner wire integrated with left ridge sheet, the cavity passed for feed inner wire is offered in right ridge sheet, feed inner wire arranges with cavity for concentric and and leave gap between cavity inner wall.
2. a kind of close coupling broadband according to claim 1 feed array, is characterized in that: two reflecting plates of corner reflector (1) are positioned at the both sides of close coupling linear array (2).
3. a kind of close coupling broadband according to claim 1 feed array, is characterized in that: the bottom between left ridge sheet and right ridge sheet is provided with reflection cavity (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520600516.XU CN204834888U (en) | 2015-08-11 | 2015-08-11 | Close coupling broadband feed array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520600516.XU CN204834888U (en) | 2015-08-11 | 2015-08-11 | Close coupling broadband feed array |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204834888U true CN204834888U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520600516.XU Active CN204834888U (en) | 2015-08-11 | 2015-08-11 | Close coupling broadband feed array |
Country Status (1)
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| CN (1) | CN204834888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444821A (en) * | 2019-01-04 | 2019-03-08 | 北京环境特性研究所 | A kind of controllable corner reflector that polarizes |
-
2015
- 2015-08-11 CN CN201520600516.XU patent/CN204834888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444821A (en) * | 2019-01-04 | 2019-03-08 | 北京环境特性研究所 | A kind of controllable corner reflector that polarizes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |