Mutual Coupling Matrix Estimation and Null Forming Methods for MBF Antennas(<Special Section>2004 International Symposium on Antennas and Propagation)
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概要
- 論文の詳細を見る
MBF (Microwave Beam Forming) antennas are beam forming antennas that perform pattern control in RF, for a low-cost design suitable for mobile terminals. An MBF antenna has only a single output port, since this antenna consists of an array antenna, microwave phase shifters, and a power combiner. Because of this simple configuration, MBF antennas cannot adopt conventional beam forming algorithms that require both phase and amplitude control, and signal observation of each antenna element. In this paper, mutual coupling matrix estimation and null forming methods are presented for MBF antennas. It is shown that the mutual coupling matrix can be estimated by changing the antenna weight instead of signal observation of each antenna element. It is also shown that phase-only null forming, including mutual coupling effect, can be done by the optimum phase perturbations. Numerical and experimental results show the performance of these algorithms.
- 社団法人電子情報通信学会の論文
- 2005-06-01
著者
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ARAI Hiroyuki
Division of Electrical & Computer Engineering Yokohama National University
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Aoyama Hiromitsu
Division Of Electrical And Computer Engineering Yokohama National University
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Arai Hiroyuki
Division Of Electric And Computer Engineering Yokohama National University
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Arai Hiroyuki
Division Of Electrical And Computer Engineering Yokohama National University
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Arai Hiroyuki
Division of Brain Sciences, Department of Geriatrics and Gerontology, Institute of Development, Aging and Cancer, Tohoku University
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