Title :
Site attenuation characteristics of anechoic chamber using foamed ferrite as new absorbing material
Author :
Tokuda, Masamitsu ; Simada, Kazuo ; Ishii, Hiroyoshi
Author_Institution :
Fac. of Eng., Kyushu Inst. of Technol., Kitakyushu, Japan
Abstract :
The anechoic chamber built in the Kyushu Institute of Technology in 1998 can be configured as a semi-anechoic chamber as well as a fully anechoic one in the frequency range of from 30 MHz to 10 GHz, having a thickness of about 10 cm by using a foamed ferrite as the new absorbing material. The normalized site attenuation (NSA) of the fully anechoic chamber is within ±4 dB to the theoretical value in the frequency range from 30 MHz to 18 GHz, and the NSA of semi-anechoic chamber is also within ±4 dB to the NSA specified by CISPR in 30 MHz-1 GHz
Keywords :
absorbing media; anechoic chambers (electromagnetic); electromagnetic wave absorption; ferrites; 10 cm; 30 MHz to 18 GHz; Kyushu Institute of Technology; absorbing material; anechoic chamber; foamed ferrite; normalized site attenuation; semi-anechoic chamber; site attenuation characteristics; Anechoic chambers; Antenna measurements; Attenuation; Electromagnetic fields; Electromagnetic measurements; Ferrites; Frequency measurement; Immunity testing; Radio frequency; Space technology;
Conference_Titel :
Electromagnetic Compatibility, 1999 International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
4-9980748-4-9
DOI :
10.1109/ELMAGC.1999.801308
