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

Author

Sinhamahapatra, T.K. ; Ahmed, A. ; Mahanti, G.K. ; Pathak, N. ; Chakrabarty, A.

Author_Institution

Dept. of Electron. & Commun. Eng., Nat. Inst. of Technol., Durgapur

fYear

2007

fDate

19-20 Dec. 2007

Firstpage

1

Lastpage

4

Abstract

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 (a_max/a_min) of excitation amplitude distribution.

Keywords

antenna arrays; genetic algorithms; multibeam antennas; multifrequency antennas; phase control; phase shifters; broadside symmetrical beams; discrete phase shifters; discrete phase-only dual-beam array antennas; excitation amplitude distribution; fixed amplitude distribution; flat-top beam; linear isotropic antenna arrays; minimum dynamic range ratio; pencil beam; phase-only control; real-coded genetic algorithm; zero phases; Antenna arrays; Antenna radiation patterns; Circuit synthesis; Design engineering; Dynamic range; Genetic algorithms; Genetic engineering; Linear antenna arrays; Phase shifters; Phased arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Electromagnetics Conference, 2007. AEMC 2007. IEEE

Conference_Location

Kolkata

Print_ISBN

978-1-4244-1863-3

Electronic_ISBN

978-1-4244-1864-0

Type

conf

DOI

10.1109/AEMC.2007.4638009

Filename

4638009