The effects of gaps in ferrite tiles on both absorber and chamber performance

Author

Holloway, Christopher L. ; McKenna, Paul ; Johnk, Robert T.

Author_Institution

Inst. for Telecommun. Sci., Boulder, CO, USA

Volume

1

fYear

1999

fDate

1999

Firstpage

239

Abstract

In this paper, we present a model that accounts for the gaps between ferrite tiles which occur during the installation of the tiles in anechoic chambers. With this model we investigate the effect of gaps on both the performance of the tiles and the degradation of the chamber performance due to the gaps. It is shown that small gaps can cause large changes (as much as 5 to 10 dB) in the reflectivity, especially at the lower frequency end. It is also shown that small gaps can cause variations in chamber performance, and these variations can have a detrimental effect on the ability of the chamber to meet its performance specification

Keywords

absorbing media; anechoic chambers (electromagnetic); ferrites; finite difference time-domain analysis; absorber performance; anechoic chambers; chamber performance; degradation; ferrite tiles; performance specification; reflectivity; Anechoic chambers; Degradation; Ferrites; Finite difference methods; Frequency dependence; Magnetic materials; Reflection; Reflectivity; Tiles; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 1999 IEEE International Symposium on

Conference_Location

Seattle, WA

Print_ISBN

0-7803-5057-X

Type

conf

DOI

10.1109/ISEMC.1999.812902

Filename

812902