Title :
Beam steering of a large phased-array antenna with fixed major-lobe beamwidth and side-lobe levels
Author :
Song-Han Yang ; Jean-Fu Kiang
Author_Institution :
Grad. Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
In this work, a large 76,000-element phased-array antenna is optimized in terms of its beam-steering capability. A tapering technique is proposed to maintain a constant beamwidth of the major-lobe when it is steered away from the broadside direction. An adaptive particle swarm optimization (APSO) algorithm is applied to adjust the phases of all the elements so that the maximum side-lobe level can be restrained to an acceptable level of -17.36 dB.
Keywords :
antenna phased arrays; beam steering; particle swarm optimisation; APSO algorithm; adaptive particle swarm optimization algorithm; beam-steering capability; fixed major-lobe beamwidth; phased-array antenna; side-lobe levels; tapering technique; Antenna arrays; Beam steering; Educational institutions; Genetic algorithms; Optimization; Particle swarm optimization; Radar antennas;
Conference_Titel :
Radio Science Meeting (Joint with AP-S Symposium), 2013 USNC-URSI
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
978-1-4799-1128-8
DOI :
10.1109/USNC-URSI.2013.6715369
