| Ku 波段口径耦合宽带双极化微带天线 |
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| 引用本文： | 时亮 赵国强 陈卓著 孙厚军 吕昕. Ku 波段口径耦合宽带双极化微带天线[J]. 微波学报, 2012, 28(S1): 57-60 |
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| 作者姓名： | 时亮 赵国强 陈卓著 孙厚军 吕昕 |
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| 作者单位： | 北京理工大学微波技术研究所，北京 100081 |
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| 摘 要： | 本文综合运用双层贴片和口径耦合馈电拓展了微带天线的带宽，设计了一个工作在Ku 波段的宽频带双极化微带天线。利用在架高层介质上开腔体的方法实现对于寄生贴片的架高，既能有效降低天线成本，又可实现较低的等效介电常数。基于这种双极化单元组成了一个2×2 的微带天线阵列，仿真结果表明两端口分别拥有20.5%和20.1%的阻抗带宽，两端口隔离度大于31dB，水平极化和垂直极化的极化隔离大于41dB 和46dB。
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| 关 键 词： | Ku 波段；口径耦合；宽频带；双极化；微带天线 |
Wideband Dual-polarized Apertures-coupled Microstrip Antenna at Ku-band |
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| SHI Liang,ZHAO Guo-qiang,Chen Zhuo-zhu,SUN Hou-jun,LV Xin. Wideband Dual-polarized Apertures-coupled Microstrip Antenna at Ku-band[J]. Journal of Microwaves, 2012, 28(S1): 57-60 |
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| Authors: | SHI Liang ZHAO Guo-qiang Chen Zhuo-zhu SUN Hou-jun LV Xin |
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| Affiliation: | Research Institute of Microwave Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Stacked patch, aperture-coupled feeding are used to enhance the bandwidth of a dual-polarized microstripantenna at Ku. Cavity in the substrate can effectively reduce antenna cost, but also to achieve a low equivalent dielectricconstant. By using the unit designed, a 4-element array antenna is fabricated. Simulation results show that the relativeimpedance bandwidth of two ports( VSWR<2) is 20.5% and 20.1%. Respectively, and isolation degree is higher than31dB, and the Cross-Polarization is better than -41dB and -46dB. |
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