Title :
Sidelobe suppression in shaped reflectors for contour beams
Author :
Ramanujam, P. ; Tun, S.M. ; Adatia, N.A.
Author_Institution :
ERA Technol. Ltd., Leatherhead, UK
Abstract :
The procedure for sidelobe suppression in shaped reflectors for contoured beam applications is illustrated with reference to two typical coverages. The technique using GO synthesis, may need a final re-optimisation to take into account the feed near-field effects and the approximations involved in the synthesis procedure. The method based on diffraction optimisation, though avoids both these shortcomings, can be extremely time consuming especially in multiple contoured antenna designs involving more than one reflector
Keywords :
antenna radiation patterns; antenna reflectors; directive antennas; interference suppression; reflector antennas; satellite antennas; GO synthesis; contour beams; diffraction optimisation; feed near-field effects; shaped reflectors; sidelobe suppression; synthesis procedure;
Conference_Titel :
Antennas and Propagation, 1989. ICAP 89., Sixth International Conference on (Conf. Publ. No.301)
