Reactive-Field Anechoic Box for ESPAR Antenna Measurement
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概要
- 論文の詳細を見る
Reactive near field reflection characteristics of commercial RF absorbers are investigated to determine the minimum size of a reactive-field anechoic box necessary for measuring the reactive near field of an ESPAR antenna. The reflectivity of the absorber placed in close proximity to an antenna is inversely proportional to the distance between the antenna and the absorber. For carbon filled urethane foam tapered absorbers, we find that the backscattered reflection characteristics mainly depend on their tapered height rather than the thickness of absorber base. As a result, we show that carbon filled urethane foam pyramidal and wave surface shaped absorbers can be used to make reactive-field anechoic boxes. A prototype of a reactive-field anechoic box is presented and the distance from the absorber to the antenna is reduced to a wavelength. The prototype is verified by comparing its performance with that obtained from a large anechoic chamber.
- 社団法人電子情報通信学会の論文
- 2002-07-01
著者
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OHIRA Takashi
ATR Adaptive Communications Research Laboratories
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Ohira T
Atr
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Inagaki K
Atr
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HAN Qing
ATR Adaptive Communications Research Laboratories
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INAGAKI Keizo
ATR Adaptive Communications Research Laboratories
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IIGUSA Kyouichi
ATR Adaptive Communications Research Laboratories
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SCHLUB Robert
Griffith University
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Inagaki Keizo
Atr Adaptive Communications Research Laboratoeies
関連論文
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