Title :
EMI antenna calibration on an absorber-lined ground plane for measuring free-space antenna factor
Author :
Umeda, Tomoki ; Matsumoto, Yasushi ; Nishikata, Atsuhiro ; Yamanaka, Yukio ; Sugiura, Akira ; Koike, Kunimasa
Author_Institution :
Tohoku Univ., Sendai, Japan
Abstract :
The CISPR has been discussing the calibration methods suitable for determining the free-space value of antenna factor of an EMI measuring antenna. One of the promising methods is the standard antenna method employed on an open-area test site covered with radio wave absorbers. To evaluate the effects of absorbers, theoretical and experimental investigations are performed rigorously on the antenna impedance and antenna factor of an antenna that is placed at various heights above ferrite tiles put on a metal ground plane. These studies show that the use of ferrite tiles is very effective to produce quasi free-space environment at an open area test site for EMI antenna calibration.
Keywords :
antenna testing; calibration; earthing; electromagnetic interference; ferrite devices; method of moments; open area test sites; EMI antenna calibration; Sommerfeld integral; absorber-lined ground plane; antenna impedance; calibration methods; ferrite tiles; free-space antenna factor measurement; metal ground plane; open-area test site; quasi free-space environment; radio wave absorbers; standard antenna method; Antenna measurements; Antenna theory; Calibration; Electromagnetic interference; Ferrites; Impedance; Open area test sites; Performance evaluation; Testing; Tiles;
Conference_Titel :
Electromagnetic Compatibility, 2002. EMC 2002. IEEE International Symposium on
Conference_Location :
Minneapolis, MN, USA
Print_ISBN :
0-7803-7264-6
DOI :
10.1109/ISEMC.2002.1032445
