Anechoic chamber for use in frequency range from MHz to GHz constructed with absorbers featuring a new design concept

Author

Maeda, Atsushi ; Jongsoo Yoon ; Sunghyuk Yoon ; Hyungpyo Kim ; Younggoo Lee

Author_Institution

A. Maeda Assoc. Inc., Yokohama, Japan

fYear

2014

fDate

1-4 Sept. 2014

Firstpage

1127

Lastpage

1132

Abstract

In anechoic chambers for the bandwidth of 30 MHz to 1000 MHz, it is usual to use an absorber consisting of pyramid-shaped foamed urethane made out of a dielectric with carbon added and ferrite tiles. The absorption characteristics of combined absorber are limited to be applied in frequencies above 1 GHz because of the frequency dispersion of dielectric constant of the carbon used. In this paper, taking account of the dispersion characteristics, new design concept is proposed. The sufficient results in the 30 MHz to 6 GHz are obtained in a 3 meter anechoic chamber built with the absorbers fabricated on the new design concept.

Keywords

absorption; anechoic chambers (electromagnetic); dispersion (wave); permittivity; absorption characteristics; anechoic chambers; bandwidth 30 MHz to 1000 MHz; design concept; dielectric constant; ferrite tiles; frequency 30 MHz to 6 GHz; frequency dispersion; pyramid-shaped foamed urethane; Absorption; Anechoic chambers; Carbon; Dielectrics; Electromagnetic compatibility; Ferrites; Frequency measurement; MHz to GHz frequency; anechoic chamber; new design concept absorber; site attenuation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (EMC Europe), 2014 International Symposium on

Conference_Location

Gothenburg

Type

conf

DOI

10.1109/EMCEurope.2014.6931072

Filename

6931072