Point focusing flat lens antenna

A technology of flat lens and point focusing, which is applied in the field of communication and can solve the problems of difficult lens processing

Active Publication Date: 2012-07-18
KUANG CHI INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a point-focusing flat panel lens antenna with simple processing for the defect that the point-focusing lens in the prior art is difficult to process.

Method used

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Examples

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Embodiment Construction

[0066] like Figure 1 to Figure 6 As shown, it is the point-focusing flat-panel lens antenna provided by the first embodiment of the present invention. The point-focusing flat-panel lens antenna includes a housing 1 with an opening on one side, a feed source 2 arranged on the other side of the housing 1 and a closed housing. The metamaterial flat lens 1000 of the opening K1, the feed source 2 is preferably a horn antenna, such as a rectangular waveguide horn antenna or a circular waveguide horn antenna, and the inner wall of the housing 1 is provided with a wave-absorbing material 3 to absorb electromagnetic waves directed to the housing, Prevent the electromagnetic wave reflection in this part from interfering with the feed and affecting the performance of the antenna. The wave-absorbing material of the present invention can be a single-layer plate-shaped wave-absorbing material directly attached to the inner wall of the shell; it can also be a double-layer or multi-layer pla...

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Abstract

The invention discloses a point focusing flat lens antenna. The point focusing flat lens antenna comprises a shell which has an opening on one side, a feed source and a meta-material flat lens which is used to seal the shell opening. The meta-material flat lens comprises a first flat lens and a second flat lens, wherein the first flat lens is close to the feed source and the second flat lens fits the first flat lens. Through designing refractive index distribution of the first flat lens and the second flat lens, electromagnetic waves emitted by the feed source can be gathered into one point. According to the point focusing flat lens antenna of the invention, a traditional lens part is replaced by the meta-material flat lens; a curved surface with a complex processing shape and high precision requirement does not needed; manufacturing and processing are easy and cost is low.

Description

technical field [0001] The invention relates to the communication field, and more specifically, relates to a point-focused flat-panel lens antenna. Background technique [0002] A point focus lens antenna usually consists of a waveguide horn antenna and a lens. Its characteristic is that the beams converge at the designed focal point to form a focal spot. The focal length and aperture size can be customized according to user requirements. When the focal points of two point-focus lens antennas coincide, the transmission loss between the two antennas is the smallest. Because the area near the intersection point is small, it is one of the best methods to study the local microwave transmission and reflection characteristics of special materials and substances. The lens is the most important part of the point-focus lens antenna, but because the lens of the traditional point-focus lens antenna needs to process a complex curved surface, and the precision of the curved surface is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q19/06H01Q15/02H01Q17/00
Inventor 刘若鹏李星昆岳玉涛季春霖
Owner KUANG CHI INST OF ADVANCED TECH
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