Summary

International Symposium on Antennas and Propagation

2005

Session Number:2POS-A

Session:

Number:2POS-A-10

AN ELECTROMAGNETIC ANECHOIC CHAMBER FOR RADIATED IMMUNITY TESTS ABOVE 1 GHz

Tae-Weon Kang,  SungHo Won,  Joo-Gwang Lee,  Jeong-Hwan Kim,  

pp.-

Publication Date:2005/11/3

Online ISSN:2188-5079

DOI:10.34385/proc.33.2POS-A-10

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Summary:
An anechoic chamber for radiated immunity tests for low frequency range was modified to extend its frequency range above 1 GHz. Dielectric pyramidal absorbers were used to construct a hybrid absorber consisting of a grid ferrite tile and the pyramidal absorber. The return loss of the hybrid absorber backed with a metal plate was calculated by the simple low-frequency homogenization technique. Experimental results show that the performance of the chamber, i.e., the field uniformity, is good for horizontal and polarizations up to 4.2 GHz except near 190 MHz.