移动卫星通信相控阵天线的光栅瓣抑制

6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003 Pub Date : 1900-01-01 DOI:10.1109/ISAPE.2003.1276668

Youngkeun Yoon, J. Kim

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引用次数: 0

摘要

介绍了一种利用角空间滤波器抑制相控阵天线光栅瓣的技术。为了减小天线的光栅瓣，可以在现有的天线上增加角空间滤波器。基于微波理论和电磁分析，设计了一种角空间滤波器。所设计的角空间滤波器在卫星通信中，在12.25 GHz时，距离主波束50/spl plusmn/ 1.5 dB、波纹/spl plusmn/ 1.5 dB、通角20/spl°附近的功率水平降低17 dB，在12.25 GHz时，距离TM情况下的功率水平降低15 dB、波纹/spl plusmn/ 1.4 dB、通角27/spl°。本文的测量结果表明，在抑制光栅瓣方面效果良好。所设计的滤波器适用于相控阵天线系统和波束形成天线罩的光栅瓣减小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Gratinglobe suppression of phased array antenna for mobile satellite communications

A gratinglobe suppression technique of phased array antenna using an angular spatial filter is described. Angular spatial filter can be added to the existing antenna in order to reduce gratinglobes of the antenna. Based on microwave theory and EM analysis, an angular spatial filter is designed. The designed angular spatial filter has the power level lower 17 dB around /spl plusmn/ 50/spl deg/ from the main beam, ripple /spl plusmn/ 1.5 dB, and pass angle 20/spl deg/ at 12.25 GHz on TE case and power level lower 15 dB, ripple /spl plusmn/ 1.4 dB, and pass angle 27/spl deg/ at 12.25 GHz on TM case in satellite communication In this paper the measured results are shown to be not bad in the gratinglobe suppression. The designed filter is applicable for the reduction of gratinglobes for the phased array antenna system and radome of beamforming antenna.

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来源期刊

6th International SYmposium on Antennas, Propagation and EM Theory, 2003. Proceedings. 2003

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