Ka波段宽带圆极化微带天线单元及阵列设计

胡志慧; 姜永华; 李娜; 凌祥

doi:10.15892/j.cnki.djzdxb.2013.02.013

2013 , Vol. 33 >Issue 2: 129 - 132

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2013.02.013

摘要

设计了一种基于矩形缝隙耦合的Ka波段圆极化微带天线单元,分析了各参数对轴比特性的影响;为改善天线的轴比带宽和圆极化纯度,采用顺序旋转馈电技术,设计了4×4宽带圆极化微带天线阵列。仿真结果表明,该天线阵列具有良好的宽带特性,其阻抗带宽(S₁₁<-10dB)达25%(31.4~40.2GHz),轴比带宽(AR<3dB)达17%(31.8~37.8GHz)。

关键词： 宽带圆极化; 顺序旋转馈电; 矩形缝隙耦合; Ka波段

本文引用格式

胡志慧 , 姜永华 , 李娜 , 凌祥 . Ka波段宽带圆极化微带天线单元及阵列设计[J]. 弹箭与制导学报, 2013 , 33(2) : 129 -132 . DOI: 10.15892/j.cnki.djzdxb.2013.02.013

Abstract

A novel Ka-band broadband circularly polarized microstrip patch antenna fed by rectangular aperture coupling was proposed Firstly, the effect of key parameters on axial ratio(AR) was analyzed. In order to improve AR bandwidth and impedance bandwidth, a 4 x 4 broadband circularly polarized microstrip antenna array using sequentially rotated technique was designed. The simulation result shows that the impedance bandwidth(S₁₁ < 10dB) of the antenna array is 25% (31.4~40.2GHz), the AR bandwidth(AR <3) is 17% (31.8~37.8GHz).

Key words： broadband circular polarization; sequentially rotating fed; rectangular aperture coupling; Ka-band

参考文献

[1]	薛睿峰, 钟顺时. 微带天线圆极化技术概述与进展[J]. 电波科学学报, 2002,17 (4): 331- 336.
[2]	赵爽, 陈殿仁. 毫米波圆极化单脉冲阵列天线的研究. 微波学报, 2011,27 (6): 73- 76.
[3]	John Huang. A Ka-band circularly polarized high-gain mi-crostrip array antenna[J]. IEEE Transactions on Antennasand Propagation, 1995,43 (1): 113– 116.
[4]	朱莉. 一种新型宽带圆极化微带天线的设计[J]. 微波学报, 2008,24 (3): 21– 24.
[5]	张辉. 基于H形缝隙耦合的宽带圆极化微带天线[J]. 电子与信息学报, 2007,29 (4): 991- 993.
[6]	HU Yong-jin. Broadband circularly polarized microstrip an-tenna array using sequentially rotated techniqueJ. IEEEAntennas and Wireless Propagation Letters, 2011,10: 1358- 1361.

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