Design of broadband circularly polarized slot antenna based on metasurface

DONG Chengjie; CHEN Ming; MIAO Qian; WANG Kaikai; XING Qiong

doi:10.13873/J.1000-9787(2020)11-0071-03

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Design of broadband circularly polarized slot antenna based on metasurface

更新时间：2025-09-11

- Design of broadband circularly polarized slot antenna based on metasurface
- Issue 11, Pages: 71-73+77(2020)
- 作者机构：
  
  西安邮电大学电子工程学院
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2020)11-0071-03
  CLC： TN822
- Published：2020
- 稿件说明：
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DONG Chengjie, CHEN Ming, MIAO Qian, et al. Design of broadband circularly polarized slot antenna based on metasurface[J]. 2020, (11): 71-73+77.
DOI：

DONG Chengjie, CHEN Ming, MIAO Qian, et al. Design of broadband circularly polarized slot antenna based on metasurface[J]. 2020, (11): 71-73+77. DOI： 10.13873/J.1000-9787(2020)11-0071-03.

摘要

提出了一种新型的用于C波段卫星通信应用的超表面宽带圆极化缝隙天线

天线尺寸为0. 46λ0×0. 46λ0

厚度为0. 06λ0(为频率为5. 25 GHz的自由空间波长)。在设计过程中

采用等效电路法分析了超表面实现圆极化的工作机制

同时对天线圆极化带宽的影响因素进行了分析和参数扫描。仿真结果表明:该天线相对带宽达到28. 6%左右

3 d B轴比带宽达到19%左右

在阻抗带宽内天线的增益在7. 9 d Bi左右。给出了辐射特性

辐射方向图

以及仿真结果

为宽频带的无线通信的研究提供了一种新的研究方向。

Abstract

A new broadband circularly polarized slot antenna using metasurface for C-band satellite communication application is proposed. The antenna has a size of 0. 46λ0× 0. 46λ0 and a thickness of 0. 06λ0（ λ0 is a free space wavelength with a frequency of 5. 25 GHz）. In the process of design

the working mechanism of metasurface circular polarization is analyzed by using equivalent circuit method

and the influencing factors of antenna circular polarization bandwidth are analyzed and the parameters scanning are carried out at the same time.The simulation results show that the relative bandwidth of the antenna is about 28. 6 %

the 3 d B axis ratio bandwidth is about 19 %

and the gain of the antenna is about 7. 9 d Bi in the impedance bandwidth. Radiation characteristics

radiation pattern and simulation results are given

which provide a new research direction for the research of broadband wireless communication.

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Related Institution

Institute of Signal Capture and Processing,North University of China

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