Title :
Anechoic chamber using foamed ferrite for immunity tests in the frequency range over 1 GHz
Author :
Hayashi, Toshikastu ; Inoue, Shigco ; Shimada, Kazuo ; Tokuda, Masamitsu
Author_Institution :
RIKEN, Inst. of Phys. & Chem. Res., Saitama, Japan
Abstract :
A new generation of electromagnetic absorber, which has pyramid shape and is 10 cm in height and has good absorbing characteristics in the range of high frequency range, was developed to satisfy the requirements of anechoic chambers. It was formed by a foaming process following sintering. When it was composed on a conventional ferrite tile, excellent absorbing characteristics over 20 dB were obtained in a wide range of frequency. At the same time, an anechoic chamber using foamed ferrite presented excellent uniformity of electromagnetic field strength
Keywords :
absorbing media; anechoic chambers (electromagnetic); electric noise measurement; electromagnetic wave absorption; ferrites; foams; testing; 10 cm; anechoic chamber; electromagnetic absorber; ferrite tile; foamed ferrite; foaming process; high frequency absorber; immunity tests; pyramid shape; sintering; uniform electromagnetic field strength; Anechoic chambers; Electromagnetic measurements; Electromagnetic scattering; Ferrites; Frequency measurement; Magnetic field measurement; Powders; Radio frequency; Shape; Tiles;
Conference_Titel :
Electromagnetic Compatibility, 1999 International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
4-9980748-4-9
DOI :
10.1109/ELMAGC.1999.801312
