Transmission unit based on Huygens metasurface, array, antenna and regulation and control method

Abstract

The invention relates to the technical field of planar transmission array antennas, and discloses a transmission unit based on a Huygens metasurface, a planar array antenna and a regulation and control method of the planar array antenna in order to solve the technical problem of how to improve the transmission amplitude on a single-layer dielectric plate, and the planar array antenna comprises the single-layer dielectric plate and a metal patch unit; the metal patch unit comprises a metal open square ring and a central arm; the metal open square ring comprises a first direction arm and two second direction arms with the same length; and metal patch units are arranged on two opposite surfaces of the single-layer dielectric plate and are in a rotational symmetry relationship. By regulating and controlling the length of the second direction arm, the width of the second direction arm and the length of the central arm of each transmission unit, a 360-degree range transmission phase is formed, and meanwhile, the transmission amplitude is kept above-0.82 dB. The structure of the metal patch unit is improved, richer electromagnetic resonance forms can be changed through the combination of three parameters, the adjustment range is wider, and the transmission amplitude is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of planar transmission array antennas. Background technique [0002] Air-fed planar transmission array antennas and planar reflectarray antennas combine optics and antenna array theory, usually have the advantages of low profile, high radiation efficiency, and simple feeding, and are ideal for high-gain antennas. Since the planar transmissive array antenna does not have the problem of feed shielding, it has received more attention in recent years. [0003] Huygens metasurfaces have space-transformed electric and magnetic dipoles, can excite electric dipole resonance and magnetic dipole resonance at the same time, and have the ability to arbitrarily control electromagnetic waves, which has attracted great attention from researchers. The traditional method based on multi-layer frequency selective surface is a conventional method for designing planar transmission array antennas, but this method requires at lea...

AI Technical Summary

Problems solved by technology

The traditional method based on multi-layer frequency selective surface is a conventional method for designing planar transmission array antennas, but this method requires at least three layers of dielectric boards to simultaneously satisfy the 360° transmission phase control and the transmission amplitude above -3dB, which undoubtedly increases the manufacturing cost of the antenna. difficulty and cost

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