| 一种新型星载SAR宽带双极化微带天线研究 |
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| 引用本文： | 李建新,李迎林,张金平.一种新型星载SAR宽带双极化微带天线研究[J].电波科学学报,2009,24(2). |
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| 作者姓名： | 李建新 李迎林 张金平 |
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| 作者单位： | 南京电子技术研究所天线与微波技术国家重点实验室,江苏,南京210013 |
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| 摘 要： | 提出了一种新型宽带双极化微带天线：天线单元采用层叠结构，下层为正方形辐射贴片，上层为圆形寄生帖片。同时给出了常见的正方形寄生贴片的结构参数，计算结果表明：采用圆形寄生贴片的新型天线与一般的正方形寄生贴片天线相比，在带宽、隔离度和交叉极化电平等性能上均具有优势，尤其是交叉极化特性，优于正方形寄生贴片结构-5dB左右，具有重要的工程应用价值。
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| 关 键 词： | 微带天线 星载SAR 宽带 隔离度 交叉极化 |
Study on a novel dual-polarized and wide-band microstrip patch antenna for SAR applications |
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| LI Jian-xin,LI Ying-lin,ZHANG Jin-ping.Study on a novel dual-polarized and wide-band microstrip patch antenna for SAR applications[J].Chinese Journal of Radio Science,2009,24(2). |
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| Authors: | LI Jian-xin LI Ying-lin ZHANG Jin-ping |
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| Affiliation: | LI Jian-xin LI Ying-lin ZHANG Jin-ping(National Key Laboratory of Antennas , Microwave TechnologyResearch Institute of Electronics Technology of Nan jing,Nanjing Jiangsu 210013,China) |
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| Abstract: | Abstract In this paper,a novel broadband and dual-polarized microstrip antenna is presented.The antenna unit is cascade-structured,with square radiation patch at the bottom and a circular aperture-coupled patch on the top.A common antenna with regular square aperture-coupled patch is also designed in this paper.By contrasting the results of calculation,the novel microstrip antenna has advantages in broadwidth,isolation and cross polarization,which is over-5 dB,better than the regulare ones.So it has much im... |
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| Keywords: | microstrip antenna SAR located on satellite bandwide isolation cross-polaration |
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