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A High Gain Dual Circularly Polarized Antenna Structure Based on Metasurface Loading

An antenna structure and dual circular polarization technology, which is applied in the direction of antenna grounding switch structure connection, radiation element structure, etc., can solve problems such as low gain, low antenna aperture efficiency, and limited working bandwidth, and achieve aperture efficiency improvement and improvement In-band gain, the effect of expanding the impedance bandwidth

Active Publication Date: 2021-12-21
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

These design methods can obtain ideal design results, but there are disadvantages: limited operating bandwidth, low gain, low aperture efficiency of the antenna, etc.

Method used

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  • A High Gain Dual Circularly Polarized Antenna Structure Based on Metasurface Loading
  • A High Gain Dual Circularly Polarized Antenna Structure Based on Metasurface Loading
  • A High Gain Dual Circularly Polarized Antenna Structure Based on Metasurface Loading

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Embodiment Construction

[0050] Before any embodiment of the invention is described in detail, it is to be understood that the invention is not limited to the details of construction shown in the following description or in the drawings. The invention is capable of other embodiments and of being carried out or being carried out in various ways. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative improvements shall fall within the protection scope of the present invention.

[0051] A high-gain dual circularly polarized antenna structure based on metasurface loading, such as Figure 1-Figure 10 As shown, it includes two radiation units with the same shape, and the radiation units include a metasurface structure 1, a patch group, a multi-layer dielectric substrate and a feeding network 9;

[0052] Each of the multi-layer dielectric substrates is placed in parallel with each other, and the metasurface structure 1, t...

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Abstract

The invention discloses a high-gain dual circularly polarized antenna structure based on metasurface loading, which solves the shortcomings of traditional microstrip patch antennas, such as low radiation gain and limited bandwidth, and the invention includes two radiation units with the same shape , the radiation unit includes a metasurface structure 1 , a patch group, a multilayer dielectric substrate and a feed network 9 . Under a compact caliber, the present invention introduces a 4×4 square ring-shaped metasurface structure to improve the gain of the antenna. It is applied in high-gain, high-isolation systems such as identification (RFID).

Description

technical field [0001] The invention relates to the field of circularly polarized antennas, in particular to a high-gain dual circularly polarized antenna structure based on metasurface loading. Background technique [0002] Circularly polarized antennas have important application prospects in modern wireless communication systems. This is because it can not only reduce the multipath effect interference caused by buildings, obstacles, etc., but also resist the Faraday rotation effect formed by electromagnetic waves in magnetic media such as ions or ferrites. Moreover, the circularly polarized antenna can receive electromagnetic waves of any polarization form at any time and any place without mismatch. As a result, circularly polarized antennas have been widely used in systems such as indoor and outdoor wireless local area networks (WLAN), remote sensing and telemetry, satellite communications, Bluetooth, and radio frequency identification (RFID). Compared with the general ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q1/50
CPCH01Q1/36H01Q1/38H01Q1/50
Inventor 赵志钦丁孝翔张珏鑫谢波吕奕铭黄元
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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