Investigation on 10 m Semi Anechoic Chamber by Using Grid-Ferrite and Open-Top Hollow Pyramidal EM Wave Absorber(<Special Section>Near-/Far-Field EM Absorption and Shielding)
スポンサーリンク
概要
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This paper investigates the 10 m semi anechoic chamber using a new type hybrid EM wave absorber consisted of the grid-ferrite and the open-top hollow pyramidal EM wave absorber. We designed a new type hybrid EM wave absorber, which length could be slightly realized 65 cm. The 10 m semi anechoic chamber was constructed in the size of L21.5 m×W13.5 m×H8.9 m as the result of the ray-tracing simulation using this absorber. Then, the site attenuation in the constructed anechoic chamber was measured by using the broadband calculable dipole antennas. As the result, the maximum deviations between the measured site attenuation and theoretical calculated one were obtained within ±3.6 dB in the frequency range of 30 MHz to 300 MHz. It was confirmed the validity of a new type hybrid EM wave absorber. Moreover, it was confirmed that the measured results agree with the ray-tracing simulation results, in which the differences are about ±1.5 dB.
- 社団法人電子情報通信学会の論文
- 2006-01-01
著者
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Nagata Kouji
Shimizu Institute Of Technology
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Kurihara Hiroshi
Tdk Corporation
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Kurihara Hiroshi
Tdk Corporation Emc&rf Engineering Business Unit
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SAITO Toshifumi
TDK Corporation
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SUZUKI Yoshikazu
TDK Corporation, EMC&RF Engineering Business Unit
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ADACHI Masaharu
Ishikawa Co., Ltd., EMC Laboratory
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Adachi Masaharu
Ishikawa Co. Ltd. Emc Laboratory
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Saito Toshifumi
Tdk Corporation Emc&rf Engineering Business Unit
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Suzuki Yoshikazu
Tdk Corporation Emc&rf Engineering Business Unit
関連論文
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- Study on the Temperature Limitation of the Injecting Power to a Pyramidal EM-Wave Absorber
- Computer Simulation about Temperature Distribution of an EM-Wave Absorber Using a Coupled Analysis Method
- Investigation on EM Wave Absorbers by Using Resistive Film with Capacitive Reactance(Electronic Materials)
- Realization of 3m Semi Anechoic Chamber by Using Crossed-Wedge Shaped Hybrid EM Wave Absorber Consisting of Thin Corrugated Dielectric Lossy Sheet
- Realization of 3 m Semi Anechoic Chamber by Using Hybrid EM Wave Absorber Consisting of Composite Magnetic Material(Near-/Far-Field EM Absorption and Shielding)
- Investigation on 10 m Semi Anechoic Chamber by Using Grid-Ferrite and Open-Top Hollow Pyramidal EM Wave Absorber(Near-/Far-Field EM Absorption and Shielding)
- Reactive Near-field to Far-field Transformation at 30 to 150MHz