Design of Phase-Differentiated Reconfigurable Array Antennas With Minimum Dynamic Range Ratio

Author

Mahanti, G.K. ; Das, S. ; Chakraborty, A.

Author_Institution

Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur

Volume

5

Issue

1

fYear

2006

Firstpage

262

Lastpage

264

Abstract

In this letter, we propose a real-coded genetic algorithm (GA) for optimal design of reconfigurable dual-beam linear array antennas with phase only control. The problem is to find a common amplitude distribution with minimum dynamic range ratio (DRR) that will generate a pencil beam with zero phases and a flat-top beam with continuously controllable phases of an analog phase shifter. Results are also shown for the same design without minimizing dynamic range ratio (a_max/a_min) of excitation amplitude

Keywords

genetic algorithms; linear antenna arrays; analog phase shifter; dynamic range ratio; flat-top beam; linear array antennas; phase-differentiated reconfigurable array antennas; real-coded genetic algorithm; reconfigurable dual-beam antennas; Algorithm design and analysis; Antenna arrays; Antenna radiation patterns; Design optimization; Dynamic range; Genetic algorithms; Linear antenna arrays; Optimal control; Phase shifters; Phased arrays; Genetic algorithm (GA); optimization; phased array; reconfigurable array;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2006.875899

Filename

1645102