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Dual-polarized slotted waveguide antenna array

A technology of slot waveguide and antenna array, which is applied in slot antennas, antenna unit combinations with different polarization directions, circuits, etc., which can solve the problems of complex flatness leveling of antenna arrays, many installation fixed points, and heavy installation workload. Achieve the effects of reducing processing difficulty, reducing installation workload, and simplifying structure

Inactive Publication Date: 2015-04-15
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] According to the above introduction, the current dual-polarized slot waveguide antennas are independently designed and processed, and then assembled into a dual-polarized area array; this method requires many fixed points and a large installation workload in a large antenna array. The flatness and leveling of the antenna array is complex and heavy

Method used

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  • Dual-polarized slotted waveguide antenna array

Examples

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Effect test

Embodiment 1

[0039] This implementation is an 8-unit dual-polarized slot waveguide antenna array working in the X-band, the central operating frequency f 中 9.0GHz, the upper side frequency of the antenna array f 高 , lower side frequency f 低 They are 9.35GHz and 8.65GHz respectively.

[0040] see figure 1 , the dual-polarized slot waveguide antenna array consists of a horizontally polarized slot waveguide antenna array 1 and a vertically polarized slot waveguide antenna array 2 .

[0041] The horizontally polarized slot waveguide antenna array 1 is composed of a horizontally polarized radiation waveguide 3 and a horizontally polarized feed waveguide 5 connected side by side, wherein the horizontally polarized radiation waveguide 3 is located at the upper part, and the horizontally polarized feed waveguide 5 is located at the lower part, and the two The others are connected by a shared horizontally polarized public wall 7;

[0042] The vertically polarized slot waveguide antenna arra...

Embodiment 2

[0055] see Figure 5 , the top edge of the horizontally polarized radiation waveguide 3 is evenly distributed with horizontally polarized radiation slots 14 of 8 linear units. The spacing in the direction of the waveguide axis is the same, preferably 0.5 . The vertically polarized radiation slits 15 of 8 units evenly distributed on the top edge of the vertically polarized radiation waveguide 4 are located on the center line of the waveguide axis direction, and the distance between adjacent vertically polarized radiation slits 15 in the waveguide axis direction is the same, preferably 0.5 .

[0056] Others are with embodiment 1.

Embodiment 3

[0058] see Image 6 , based on the dual-polarized slot waveguide antenna array of Embodiment 1, the number of radiation slots 14 on each dual-polarized antenna array is expanded to 16, and the antenna array is used as a unit, usually selected as 4 to 40 pairs in the X-band Among them, preferably 16 units are horizontally connected in parallel to form a large antenna array. V-shaped horizontally polarized radiation slots 14 are evenly distributed on the top edge of the horizontally polarized radiation waveguide 3 .

[0059] During processing, the large antenna array is divided into four layers, and a large dual-polarization slot waveguide antenna array is obtained through machining and welding.

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Abstract

The invention relates to a dual-polarized slotted waveguide antenna array which comprises a horizontally-polarized slotted waveguide antenna array and a vertically-polarized slotted waveguide antenna array. The horizontally-polarized slotted waveguide antenna array comprises a horizontally-polarized radiation waveguide and a horizontally-polarized feed waveguide which are in up-down parallel connection through a common horizontally-polarized common wall. The vertically-polarized slotted waveguide antenna array comprises a vertically-polarized radiation waveguide and a vertically-polarized feed waveguide which are in up-down parallel connection through a common vertically-polarized common wall. The horizontally-polarized feed waveguide and the vertically-polarized radiation waveguide are connected through a common lateral wall, so that the horizontally-polarized slotted waveguide antenna array is horizontally parallelly connected with the vertically-polarized slotted waveguide antenna array. The horizontal plane waveguide walls of the horizontally-polarized slotted waveguide antenna array and the vertically-polarized slotted waveguide antenna array are parallel. The dual-polarized slotted waveguide antenna array has the advantages machining is facilitated due to the integral design of the dual-polarized slotted waveguide antenna array, antenna array mounting workload is reduced, and antenna array weight is reduced by 1 / 7-1 / 5 at the same time.

Description

technical field [0001] The invention belongs to the technical field of slot waveguide antennas, and in particular relates to a dual-polarization slot waveguide antenna array. Background technique [0002] As an antenna for transmitting and receiving electromagnetic signals, the waveguide slot antenna array is widely used in the fields of lightning and communication due to its advantages of high efficiency, easy processing and high structural strength. With the traction of demand, various forms of dual-polarization slot waveguide antennas have been developed at home and abroad. [0003] Literature (L. Josefsson, C.G. Kloster, Dual-polarized waveguide slot antenna, IEEE-Antennas and Propagation Annual Conference Proceedings, 1992, pp:625-628 / L.Josefsson, and C.G.M. Klooster, Dual polarized slotted waveguide SAR antenna, IEEE AP-S, 1992, pp:625-628) and (P.J. Ward, N. Slotted, G. Sag, A Shaped Beam Applied to DSAR Synthetic Aperture Radar Dual-polarized antennas, Proceedings ...

Claims

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Application Information

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IPC IPC(8): H01Q21/24H01Q13/10
Inventor 鲁加国汪伟张洪涛吴文煜葛家龙
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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