Simultaneous Optimal Design Method of Primary Radiator and Main Reflector for Shaped Beam Antennas

Takashi TOMURA  Michio TAKIKAWA  Yoshio INASAWA  Hiroaki MIYASHITA  

IEICE TRANSACTIONS on Communications   Vol.E100-B   No.2   pp.211-218
Publication Date: 2017/02/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2016WSP0007
Type of Manuscript: Special Section PAPER (Special Section on Antenna and Propagation Technologies Contributing to Realization of Next Generation Wireless Systems)
reflector antenna,  shaped reflector,  shaped beam,  multimode horn,  optimization,  

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Shaped beam reflector antennas are widely used because they can achieve a shaped beam even with a single primary feed. Because coverage shapes depend on service areas, optimum primary radiators and reflector shapes are determined by the service areas. In this paper, we propose a simultaneous optimal design method of the primary radiator and reflector for the shaped beam antenna. Particle swarm optimization and the conjugate gradient method are adopted to optimize the primary radiator and reflector. The design method is applied to Japan coverage to verify its effectiveness.