Millimeter wave circularly polarized planar slot array antenna

A technology of circular polarization and array antennas, which is applied in leaky waveguide antennas, antennas, antenna arrays, etc., can solve the problems of easy deterioration of indicators in the frequency band and higher processing accuracy, and achieve enhanced environmental adaptability of antennas, high gain characteristics, and reduced The effect of production costs

Inactive Publication Date: 2013-01-23
四川九洲空管科技有限责任公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to simplify the design of the feeding network, conventional millimeter-wave waveguide wide-side slot array antennas are usually used in combination with series...

Method used

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  • Millimeter wave circularly polarized planar slot array antenna
  • Millimeter wave circularly polarized planar slot array antenna
  • Millimeter wave circularly polarized planar slot array antenna

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Such as figure 1 , figure 2 As shown, the antenna structure is decomposed and flattened into assembled and combined layers that meet the requirements of large-area precision connection manufacturability, that is, flat-panel components, which are four flat-panel components of radiation layer 1, coupling layer 2, feed layer 3, and interface layer 4. Each panel component uses CAD / CAM integrated technology and high-precision CNC machine tools to complete the processing of design elements such as waveguide cavity and radiation gap; each panel component is assembled to form an antenna, and high-precision connection technology is used to achieve high precision and high reliability of the antenna. Integral connection, after the overall connection is completed, the vacuum aluminum brazing technology is used to braze all parts of the flat plate components together to fo...

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Abstract

The invention discloses a millimeter wave circularly polarized planar slot array antenna. The antenna comprises an antenna radiation layer, an antenna coupling layer, an antenna feed layer and an antenna receiving layer which are superposed together from top to bottom. The antenna radiation layer comprises multiple antenna units, each antenna unit is composed of a horn unit, a radiation slot and a radiation matching block, and one horn unit forms one horn subarray; the antenna feed layer comprises a feed slot, a feed waveguide and a feed matching block, and the feed slot, the feed waveguide and the feed matching block form a feed network together; and the antenna units of the antenna radiation layer have no polarization cover, and the horn subarrays are used for realizing the circularly polarized radiation. The millimeter wave circularly polarized planar slot array antenna has no polarization cover, and has the circularly polarized property, high gain property and perfect difference beam coverage performance; the coverage rate of the difference beam pairs and the beams is up to 100%; and compared with the prior art, the millimeter wave circularly polarized planar slot array antenna has the advantages that the difficulty in the electric fitting technology is reduced, the consistency of production is improved greatly, the workload of debugging in the later stage is avoided, the environmental suitability of the antenna is enhanced, and the production cost is lowered.

Description

technical field [0001] The invention relates to the field of flat-panel slot antennas, in particular to a millimeter-wave circularly polarized flat-panel slot array antenna. Background technique [0002] With the complexity of the modern battlefield situation, the battlefield environment is worse than before. In this form, the communication system is required to be able to work around the clock in various complex environments and battlefield situations such as sand, dust, and fog. This requires that the antenna in the RF front-end should not only work in the millimeter-wave frequency band, but also have circular polarization, high gain characteristics, and perfect sum-difference beam coverage. It can be seen that the millimeter-wave circularly polarized antenna has a wide range of application values. Broad prospects. [0003] Microstrip antennas have developed rapidly in recent years, with various forms, and have their unique advantages in the method of realizing circular p...

Claims

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Application Information

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IPC IPC(8): H01Q21/00H01Q13/02H01Q13/04H01Q13/20H01Q15/24
Inventor 李麒余翔星熠
Owner 四川九洲空管科技有限责任公司
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