Title :
Antenna factor of compact antenna range for EMC measurements above 1 GHz
Author :
Chung, Y.C. ; Marvin, A.C. ; Rowel, A.J.
Author_Institution :
Korea Res. Inst. of Stand. & Sci., Taejon, South Korea
fDate :
4/12/2001 12:00:00 AM
Abstract :
A formula is proposed for measuring the antenna factor of an offset-fed parabolic reflector operated as a compact antenna range (CAR) by considering the plane-wave approximation and field-distribution in the collimated region. The antenna factor is determined from the half power beamwidth (HPBW) of the feed, the physical geometry of the reflector and a field-distribution correction factor. The proposed formula is in good agreement with the measured results using a standard double-ridged horn antenna as the feed. The formula can be used to design CARs for EMC applications
Keywords :
antenna testing; electromagnetic compatibility; horn antennas; offset reflector antennas; reflector antenna feeds; EMC measurements; antenna factor; collimated region; compact antenna range; correction factor; field-distribution; half power beamwidth; offset-fed parabolic reflector; physical geometry; plane-wave approximation; standard double-ridged horn antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010365
