| 一种新型双极化口径耦合微带天线阵 |
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| 引用本文： | 崔俊海,钟顺时,段文军,陆彪,谢亚楠. 一种新型双极化口径耦合微带天线阵[J]. 应用科学学报, 2002, 20(4): 373-376 |
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| 作者姓名： | 崔俊海 钟顺时 段文军 陆彪 谢亚楠 |
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| 作者单位： | 1. 上海大学通信工程系, 上海 200072;2. 上海航天局804所, 上海 200082 |
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| 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.
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| 关 键 词： | 微带天线 双极化 口径耦合 综合口径雷达 |
| 文章编号： | 0255-8297(2002)04-0373-04 |
| 收稿时间： | 2001-05-31 |
| 修稿时间： | 2002-01-28 |
A New Dual-Polarized Aperture-Coupled Microstrip Patch Array |
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| CUI Jun hai ,ZHONG Shun shi ,DUAN Wen jun ,LU Biao ,XIE Ya nan. A New Dual-Polarized Aperture-Coupled Microstrip Patch Array[J]. Journal of Applied Sciences, 2002, 20(4): 373-376 |
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| Authors: | CUI Jun hai ZHONG Shun shi DUAN Wen jun LU Biao XIE Ya nan |
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| Affiliation: | 1. Department of Communication Engineering, Shanghai University, Shanghai 200072, China;2. The 804; Research Institute, Shanghai Space Flight Bureau, Shanghai 200082, China |
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| 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. |
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| Keywords: | microstrip antennas dual polarization aperture coupling synthetic aperture radar |
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