Title :
Design of offset-parabolic-reflector antennas for low cross-pol and low sidelobes
Author :
Strutzman, W. ; Terada, Marco
Abstract :
The results of a computational study on the radiation properties of offset prime-focus-reflector antennas are reported. Emphasis is on reducing sidelobes and cross polarization without sacrificing gain. The influence of feed pointing is examined in detail. A simple technique is introduced for determining the feed-pointing direction. This technique yields near-minimum sidelobe levels over practical ranges of feed pointing, with only small penalties in gain and cross polarization.<>
Keywords :
antenna feeders; antenna radiation patterns; reflector antennas; cross polarization; feed pointing; low cross-pol; low sidelobes; offset-parabolic-reflector antennas; prime-focus-reflector antennas; Antenna feeds; Apertures; Contacts; Electrical engineering; Geometrical optics; Geometry; Optical computing; Optical scattering; Polarization;
Journal_Title :
Antennas and Propagation Magazine, IEEE
