A study on pattern synthesis method for array-fed reflector antenna for advanced direct broadcasting satellites

IEEE Antennas and Propagation Society International Symposium. 2001 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.01CH37229) Pub Date : 2001-07-08 DOI:10.1109/APS.2001.958916

S. Tanaka, T. Yamada, T. Murata, T. Nomoto, H. Matsumura

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引用次数: 2

Abstract

Satellite broadcasting services operated in the 12 GHz-band are currently provided in Japan. Furthermore, the technical development of areas such as future 21 GHz-band satellite broadcasting systems is also in progress. One of the major technical difficulties with the satellite broadcasting systems using such frequency bands is the large rain attenuation caused by heavy rainfall. A method for compensating for rain attenuation is necessary to avoid the interruption of broadcasting reception. We have been studying an advanced broadcasting satellite system having an on-board large-scale phased array antenna. This system can compensate for rain attenuation by increasing the radiation power over areas of heavy rainfall. The adaptive pattern synthesis technique of the phased array antenna makes it possible to reconfigure the radiation pattern (equivalent isotropically radiated power: EIRP) according to the distribution of rainfall on the service area. We describe the results of a basic study focused on (1) the radiation pattern requirements that systems such as broadcasting satellite systems with variable EIRIP will have to satisfy and, (2) pattern synthesis methods for an array-fed reflector antenna based on singular value decomposition (SVD).

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先进直播卫星阵列馈电反射天线方向图合成方法研究

目前，日本提供12ghz波段的卫星广播服务。此外，未来21ghz波段卫星广播系统等领域的技术开发也在进行中。使用这类频带的卫星广播系统的主要技术困难之一是强降雨造成的雨水衰减。为了避免广播接收中断，必须有一种补偿雨水衰减的方法。我们一直在研究一种具有机载大规模相控阵天线的先进广播卫星系统。该系统可以通过增加强降雨地区的辐射功率来补偿降雨衰减。相控阵天线的自适应方向图合成技术可以根据服务区域的降雨分布重新配置辐射方向图(等效各向同性辐射功率，EIRP)。我们描述了一项基础研究的结果，重点是:(1)具有可变EIRIP的广播卫星系统必须满足的辐射方向图要求，以及(2)基于奇异值分解(SVD)的阵列馈电反射器天线的方向图合成方法。

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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IEEE Antennas and Propagation Society International Symposium. 2001 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.01CH37229)

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