Design of a frequency selective surface (FSS) with very low cross-polarization discrimination via the parallel micro-genetic algorithm (PMGA)

Author

Chakravarty, Sourav ; Mittra, Raj

Author_Institution

Electromagn. Commun. Lab., Pennsylvania State Univ., University Park, PA, USA

Volume

51

Issue

7

fYear

2003

fDate

7/1/2003 12:00:00 AM

Firstpage

1664

Lastpage

1668

Abstract

We discuss the design of a frequency selective surface (FSS) with low cross-polarization discrimination. In the past, FSS screens have been employed to improve the cross-polarization performance. The objective of this paper is to synthesize an FSS subreflector with low cross-polarization via the application of a parallel binary coded micro-genetic algorithm (PMGA). The PMGA optimizes the metallization pattern and the periodicity of the FSS screen in both the x- and y-directions to maintain a low cross-polarization level for a wide band of frequencies and a range of incident angles.

Keywords

binary codes; electromagnetic wave polarisation; frequency selective surfaces; genetic algorithms; parallel algorithms; reflector antennas; FSS design; FSS screens; FSS subreflector; cross-polarization performance; frequency selective surface; incident angles; low cross-polarization discrimination; metallization pattern optimization; parallel binary coded micro-genetic algorithm; Algorithm design and analysis; Antenna radiation patterns; Antennas and propagation; Bandwidth; Frequency selective surfaces; Gain; Microstrip antenna arrays; Microstrip antennas; Polarization; Stability;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2003.813637

Filename

1210825