Evaluation of 10 m semi-anechoic chamber characteristics

Author

Osabe, Kunihiro ; Komatsuzaki, Takeshi

Author_Institution

Div. of Corp. Eng., Matsushita Commun. Ind. Co. Ltd., Yokohama, Japan

fYear

1999

fDate

1999

Firstpage

248

Lastpage

251

Abstract

A 10 m semi-anechoic chamber constructed at Matsushita Communication Ind. Co., Ltd. in August 1997 was evaluated. It has wider space than conventional 10 m chambers. By securing nonreflecting object area required by CISPR16-1 at a whole EUT setting area on the 6 m diameter turntable, the influence of absorbers lining the walls could be suppressed in the frequency range of 30 MHz to 100 MHz. Therefore, the deviation from theoretical value was within 2 dB and the dispersion of site attenuation value was within 1 dB among five points, which were center point on the turntable and the front, rear, left and right position 3 meters apart from center. From these experimental results, it was verified that this chamber has the almost same characteristics as an open area test site for EMI measurement

Keywords

anechoic chambers (electromagnetic); electromagnetic wave absorption; 10 m; 30 to 100 MHz; 6 m; CISPR16-1; EMI measurement; Matsushita Communication; absorbers; nonreflecting object area; semi-anechoic chamber characteristics; site attenuation value; turntable; Anechoic chambers; Antenna measurements; Area measurement; Attenuation; Communication industry; Dipole antennas; Frequency measurement; Polarization; Testing; Welding;

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.1999.801310

Filename

801310