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

fYear

1999

fDate

1999

Firstpage

240

Lastpage

243

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 1999 International Symposium on

Conference_Location

Tokyo

Print_ISBN

4-9980748-4-9

Type

conf

DOI

10.1109/ELMAGC.1999.801308

Filename

801308