Title :
Single-feed multi-beam reflectarray antennas
Author :
Nayeri, Payam ; Yang, Fan ; Elsherbeni, Atef Z.
Author_Institution :
Dept. of Electr. Eng., Univ. of Mississippi, Oxford, MS, USA
Abstract :
In this paper we investigate single-feed multi-beam reflectarray antenna designs. The direct method of superposition of beams is compared with the alternating projection method. The implementation of the alternating projection method for multi-beam performance is discussed. Also the effects of limited phase range and quantized phase values are integrated into the alternating projection method to minimize the phase error. Finally a Ka-band quad-beam reflectarray antenna design is presented and the performances of these two design methods are compared.
Keywords :
antenna feeds; microwave antenna arrays; millimetre wave antenna arrays; multibeam antennas; reflector antennas; Ka-band quad-beam reflectarray antenna design; alternating projection method; beam superposition method; phase error minimization; single-feed multibeam reflectarray antennas; Antenna radiation patterns; Apertures; Arrays; Feeds; Mathematical model; Reflector antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-4967-5
DOI :
10.1109/APS.2010.5562104
