Research on CSRR-FS Structure of Circularly Polarized Antenna with Tilted Beam

LI Si-jia; CAO Xiang-yu; ZHENG Qiu-rong; LIU Tao; CHEN Xiao-ping

doi:10.3969/j.issn.0372-2112.2014.10.040

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Research on CSRR-FS Structure of Circularly Polarized Antenna with Tilted Beam

更新时间：2025-07-16

- Research on CSRR-FS Structure of Circularly Polarized Antenna with Tilted Beam
- Acta Electronica Sinica Vol. 42, Issue 10, Pages: 2123-2128(2014)
- 作者机构：
  
  空军工程大学信息与导航学院,陕西,西安,710077
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.61271100);China Postdoctoral Science Foundation (No.2012T50878);Major Project of Natural Science Basic Research Priorities Program of Shaanxi Province (No.2010JZ010);Natural Science Basic Research Program of Shaanxi Province (No.2012JM8003);PhD Student Innovation Project of Air Force Engineering University (No.kgd080914002)
- DOI：10.3969/j.issn.0372-2112.2014.10.040
  CLC： TN82
- Published：2014
- 稿件说明：
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LI Si-jia, CAO Xiang-yu, ZHENG Qiu-rong, et al. Research on CSRR-FS Structure of Circularly Polarized Antenna with Tilted Beam[J]. Acta Electronica Sinica, 2014, 42(10): 2123-2128.
DOI：

LI Si-jia, CAO Xiang-yu, ZHENG Qiu-rong, et al. Research on CSRR-FS Structure of Circularly Polarized Antenna with Tilted Beam[J]. Acta Electronica Sinica, 2014, 42(10): 2123-2128. DOI： 10.3969/j.issn.0372-2112.2014.10.040.

摘要

为了拓展倾斜波束圆极化天线(Circularly Polarized Antenna with Tilted Beam

CPA-TB)的带宽

在分析了该天线结构及其特征的基础上

提出了一种花纹式螺旋臂(Flower-Spiral

FS)协同互补开口谐振环(complementary split ring resontor

CSRR)的CSRR-FS结构.该结构通过FS增加了天线表面电流路径

实现了天线驻波比(voltage standing wave ratio

VSWR)的拓展;利用CSRR改变了低频点反射板的电流分布

实现反射板小型化的同时

减小了天线的交叉极化分量

增强了天线的辐射性能

拓展了天线的轴比带宽.仿真和实测结果表明:与普通的平面反射板相比

在保证圆极化、波束倾角30的条件下

基于CSRR-FS结构的CPA-TB相对带宽为24%(5.5-7GHz)

天线工作带宽拓展了1.8倍.CSRR-FS结构的提出为CPA-TB带宽的拓展提供了新的途径.

Abstract

Based on the analysis of the configuration and the character of the circularly polarized antenna with tilted beam

a novel CSRR-FS(Complementary Split Ring Resonator with Flower-Spiral

CSRR-FS)structure is proposed to increase the bandwidth of the antenna.This structure is designed through the flower-spiral arm and five complementary split ring resonator(CSRR)splits loaded on ground plane.The VSWR(voltage standing wave ratio)is enhanced through the flower-spiral structure.And respectively

five CSRR splits are loaded on the perfect electronic conductor ground plane to miniaturize the ground plane and decrease the cross-polarization component.The axial ratio is improved through the ground plane loaded five CSRR splits.Simulated and measured results both show that the relative bandwidth of the novel antenna with the CSRR-FS structure is 24% from 5.5GHz to 7GHz in the condition of circularly polarized radiation.And while

it is an azimuth angle of 30 tilted beam by the CSRR-FS structure.The bandwidth increases 1.8 times as wide as one without the CSRR-FS structure in the same condition.The proposed structure is an effectively method for increasing the bandwidth of circularly polarized antenna with tilted beam.

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