All-metal broadband high-gain low-profile resonant antenna

A resonant antenna and wide-band technology, applied in the field of high-gain low-profile resonant antenna, can solve the problems of feeding complexity and narrow gain of high-gain antennas, and achieve the effects of increased gain, increased gain bandwidth, and good practicability

Active Publication Date: 2016-03-23
南京逸然电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Purpose of the invention: the purpose of the present invention is to provide a high-gain low-profile resonant antenna with all-metal broadband, which solves the ...

Method used

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  • All-metal broadband high-gain low-profile resonant antenna
  • All-metal broadband high-gain low-profile resonant antenna
  • All-metal broadband high-gain low-profile resonant antenna

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as Figure 1-4 As shown, an all-metal broadband high-gain low-profile resonant antenna includes a resonant cavity 2 and a feed source 1 located in the resonant cavity 2 .

[0025] The feed source 1 includes a circular waveguide 11 on which a metal diaphragm 12 is arranged. The resonant cavity 2 includes a partial reflective surface 21 and a metal ground plate 23, and the feed source 1 is arranged on the metal ground plate 23; the partial reflective surface 21 and the metal ground plate 23 are parallel to each other, and the partial reflective surface 21 is connected to the metal ground plate through a fastener 25 23 connected. There are four fasteners 25 distributed on the four corners of the partially reflective surface 21 .

[0026] The partially reflective surface 21 is composed of a number of metal grid bars 22 perpendicular ...

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Abstract

The invention discloses an all-metal broadband high-gain low-profile resonant antenna, which belongs to the technical field of antennas. The all-metal broadband high-gain low-profile resonant antenna comprises a resonant cavity and a feed source located in the resonant cavity; the feed source comprises a circular waveguide, and metal diaphragms are arranged on the circular waveguide; the resonant cavity comprises a partially-reflective surface and a metal grounding plate, and the feed source is arranged on the metal grounding plate; and the partially-reflective surface and the metal grounding plate are mutually parallel. According to the high-gain low-profile resonant antenna, the resonant cavity is formed by the partially-reflective surface and the metal grounding plate parallel to the partially-reflective surface, and as the resonant characteristics are used, the gain can be improved obviously without adopting an array structure; as the upper surface of the metal grounding plate is formed by a paraboloid, and the gain bandwidth of the antenna can be improved obviously through adjusting the curvature of the paraboloid; and the structure is simpler, and practicability is good.

Description

technical field [0001] The invention belongs to the technical field of antennas, in particular to an all-metal broadband high-gain low-profile resonant antenna. Background technique [0002] Traditional high-gain antennas mainly include reflector antennas and array antennas. The three-dimensional non-planar structure of the former reflector makes it difficult for the antenna system to be integrated with the spaceborne or airborne platform and lacks design flexibility; the latter is due to the loss of the feeder network and the mutual coupling between units caused by the formation of the array. Unavoidable, thereby reducing the efficiency of the antenna, especially in the micron and millimeter wave bands. [0003] In recent years, with the development of antenna technology, some new high-gain antennas have emerged, such as high-gain antennas based on metamaterials and resonant antennas based on Fabry-Perot resonant cavities. Affected the actual use of this type of antenna. ...

Claims

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Application Information

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IPC IPC(8): H01Q5/10H01Q5/50H01Q1/36H01Q1/50
CPCH01Q1/36H01Q1/50
Inventor 刘震国
Owner 南京逸然电子科技有限公司
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