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Design of discrete phase-only dual-beam array antennas with minimum dynamic range ratio

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5 Author(s)
T. K. Sinhamahapatra ; Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur-713209, India ; A. Ahmed ; G. K. Mahanti ; N. Pathak
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In this paper, we describe the use of real-coded genetic algorithm (GA) for design of reconfigurable dual-beam linear isotropic antenna arrays with phase-only control of discrete phase shifters. The problem is to find a fixed amplitude distribution that will generate two broadside symmetrical beams in vertical plane: a pencil beam with zero phases and a flat-top beam with discrete phases of a five-bit discrete phase shifter, with or without minimizing dynamic range ratio (amax/amin) of excitation amplitude distribution.

Published in:

Applied Electromagnetics Conference, 2007. AEMC 2007. IEEE

Date of Conference:

19-20 Dec. 2007