English

应用科学学报 ›› 2002, Vol. 20 ›› Issue (4): 373-376.

• 论文 • 上一篇    下一篇

一种新型双极化口径耦合微带天线阵

崔俊海1, 钟顺时1, 段文军2, 陆彪2, 谢亚楠2   

  1. 1. 上海大学通信工程系, 上海 200072;
    2. 上海航天局804所, 上海 200082
  • 收稿日期:2001-05-31 修回日期:2002-01-28 出版日期:2002-12-31 发布日期:2002-12-31
  • 作者简介:崔俊海(1975-),男,山东莱芜人,博士生;钟顺时(1939-),男,浙江瑞安人,教授,博导.

A New Dual-Polarized Aperture-Coupled Microstrip Patch Array

CUI Jun-hai1, ZHONG Shun-shi1, DUAN Wen-jun2, LU Biao2, XIE Ya-nan2   

  1. 1. Department of Communication Engineering, Shanghai University, Shanghai 200072, China;
    2. The 804th Research Institute, Shanghai Space Flight Bureau, Shanghai 200082, China
  • Received:2001-05-31 Revised:2002-01-28 Online:2002-12-31 Published:2002-12-31

PDF

83

被引次数

24

摘要： 提出一种新型双极化口径耦合微带天线阵.基于时域有限差分法(FDTD)分析,给出了8×2元天线阵的设计,整个天线阵的总厚度只有1.8mm.实验结果表明,此天线阵驻波比小于1.5的相对带宽达到了4.8%,交叉极化电平低于-23dB,双极化端口的隔离度达到30dB.此天线阵可用作星载综合口径雷达(SAR)系统的天线子阵,与有源收发器件结合后组成大的有源相控阵天线.

关键词: 微带天线, 双极化, 口径耦合, 综合口径雷达

Abstract: A new dual polarized aperture-coupled microstrip antenna array is proposed. Based on the analysis of the finite-difference time-domain (FDTD) method, the design of an 8×2 array is presented and investigated. The thickness of the array is only 1.8mm. The experimental results show that the bandwidth of VSWR<1.5 reaches 4.8%, and the cross polarization level is better than-23dB, while the isolation between the dual polarization ports is 30dB. This array can be used as a sub array of spaceborne synthetic aperture radar (SAR) system by connecting it with the active transmitter/receiver (T/R) components.

Key words: microstrip antennas, aperture coupling, synthetic aperture radar, dual polarization

中图分类号: