A single-reflection and double-transmission metasurface antenna with three beam angles

Abstract

The invention discloses a single-reflection double-transmission three-beam included angle metasurface antenna and aims to effectively combine a reflection plane with a lens and implement three-beam directional radiation. The single-reflection double-transmission three-beam included angle metasurface antenna comprises a V-shaped reflection metasurface structure clamped between slab waveguides and afeed source; the tail ends of two arms of the reflection metasurface structure are respectively connected with two transmission metasurface structures to form an included angle metasurface structure;the feed source is fixed outside an aperture face of the included angle metasurface structure and positioned on a central axis of the included angle metasurface structure; the reflection metasurfacestructure comprises a V-shaped matrix board, resonant rings are printed on the lateral surfaces of two arms of the matrix board, which face the feed source, and metal bottom plates are printed on theother lateral surfaces of the two arms of the matrix board; and each transmission metasurface structure comprises four rectangular matrix boards in parallel to each other, the matrix board with the shortest distance to the feed source is connected with the tail ends of two arms of the reflection metasurface structure, spacing between each two matrix boards is equal along a normal direction of thematrix boards, and metal patches are printed on the lateral surfaces of the matrix boards, which face the feed source, wherein gap rings are etched on the centers of the metal patches.

Description

technical field [0001] The invention belongs to the technical field of antennas, and relates to a multi-beam antenna, in particular to a single-reflection and double-transmission three-beam angle metasurface antenna, which can be used in fields such as wireless communication and radar. [0002] technical background [0003] Multi-beam antenna technology can cover a wide range of transmission areas with high gain. The demand for satellite communications, radar reconnaissance, electronic countermeasures, and microwave transmission continues to expand. It has become the next-generation satellite antenna, multi-target tracking radar and global electronic countermeasures. important direction of development. [0004] In the existing research, there are generally three forms of multi-beam antennas with high directional properties: array type, lens type, and reflective type. Due to the advantages of simple structure, mature processing technology, and high gain, lens and reflective a...

AI Technical Summary

Problems solved by technology

[0005] Although the above existing studies have realized multi-beam antennas, they all use multi-feed sources to feed in parallel. The antenna feed network is relatively complicated, and it only works in the half-space area.

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