Title :
Variation of far-field radiation patterns of reflectors by structural deformation
Author :
Guan, Fu-Ling ; Hangai, Yasuhiko
Author_Institution :
Inst. of Ind. Sci., Tokyo Univ., Japan
Abstract :
Large reflector antennas subjected to dead load, wind load, etc. experience structural deformations which cause degradations in radiation patterns. In the present work, variations of far-field radiation patterns of reflector antennas due to symmetrical (n=0) and antisymmetrical (n=1) deformation are numerically analyzed. Two types of parabolic antennas are used as the illustrative models. The antisymmetrical deformations are shown to have a stronger influence on the variations of radiation patterns.<>
Keywords :
antenna radiation patterns; antenna reflectors; reflector antennas; dead load; far-field radiation patterns; parabolic antennas; reflector antennas; structural deformation; wind load; Antenna radiation patterns; Antennas and propagation; Apertures; Deformable models; Degradation; Fourier series; Loaded antennas; Microwave antennas; Reflector antennas; Shape;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.134671
