| 具有很高隔离度的双极化缝隙耦合微带天线 |
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| 引用本文： | 钟顺时,梁仙灵,汪伟.具有很高隔离度的双极化缝隙耦合微带天线[J].上海大学学报(英文版),2005,9(4):336-338. |
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| 作者姓名： | 钟顺时 梁仙灵 汪伟 |
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| 作者单位： | [1]School of Communication and Information Engineering,Shanghai University, Shanghai 200072, P.R. China |
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| 摘 要： | A wideband dual-polarized slot-coupled stacked microstrip antenna with very high isolation and low cross-polarization is presented. To improve isolation between two poiarization ports, the stacked patches are excited by an open-ended and a T-shaped microstrip lines both via two H-shaped slots placed in a ＂T＂ configuration. The measured isolation is better than 40.5 dB over the bandwidth from 8.8 to 9.8 GHz with cross-polarization level less than - 28.5 dB. The measured VSWR ≤ 2 bandwidths reach 20.7 96 and 19.196 at the verrical and horizontal polarization ports, respectively. This antenna is suitable to be used as array elements in spacebome synthetic aperture radars （SAR） and active phased array radars.
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| 关 键 词： | 微波传输天线 偏振现象 孤立波 交叉偏振 |
| 文章编号： | 1007-6417（2005）04-0336-03 |
| 收稿时间： | 2005-03-20 |
| 修稿时间： | 2005-04-11 |
Dual-polarized slot-coupled microstrip antenna with very high isolation |
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| Zhong?Shun-shi,Liang?Xian-ling,Wang?Wei.Dual-polarized slot-coupled microstrip antenna with very high isolation[J].Journal of Shanghai University(English Edition),2005,9(4):336-338. |
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| Authors: | Zhong Shun-shi Liang Xian-ling Wang Wei |
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| Institution: | School of Communication and Information Engineering, Shanghai University, Shanghai 200072, P.R. China |
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| Abstract: | A wideband dual-polarized slot-coupled stacked microstrip antenna with very high isolation and low cross-polarization is presented.
To improve isolation between two polarization ports, the stacked patches are excited by an open-ended and a T-shaped micros-trip
lines both via two H-shaped slots placed in a “T” configuration. The measured isolation is better than 40.5 dB over the bandwidth from 8.8
to 9.8 GHz with cross-polarization level less than −28.5 dB. The measured VSWR⩽2 bandwidths reach 20.7% and 19.1% at the vertical and horizontal polarization ports, respectively. This antenna is suitable
to be used as array elements in spaceborne synthetic aperture radars (SAR) and active phased array radars. |
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| Keywords: | microstrip antenna dual-polarization isolation cross-polarization |
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