Optimization of multi-band AMC surfaces with magnetic loading

Author

Kern, D.J. ; Werner, Douglas H. ; Werner, P.L.

Author_Institution

Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA

Volume

1

fYear

2004

fDate

20-25 June 2004

Firstpage

823

Abstract

This work presents single-bband and multi-band artificia magnetic conducting (AMC) surface designs that are shown to have significant bandwidth enhancement achieved by loading the substrate with a magnetic material. In both cases, a conventional AMC structure consisting of a high impedance frequency selective surface (HZ-FSS) is optimized using a genetic algorithm (GA) for maximum bandwidth. The single-band design operates at 2 GHz, while the multiband design has targeted resonant frequencies of 860 MHz, 1.575 GHz, and 1.88 GHz. These design examples serve to demonstrate that the inclusion of a modest amount of magnetic material within the substrate allows for improved bandwidth at all resonant frequencies.

Keywords

frequency selective surfaces; genetic algorithms; magnetic materials; magnetic permeability; resonance; 1.575 GHz; 1.88 GHz; 2 GHz; 860 MHz; AMC surface optimization; HZ-FSS; bandwidth enhancement; genetic algorithm; high impedance frequency selective surface; magnetic loading; magnetic permeability; multiband AMC surfaces; resonant frequencies; single-band artificial magnetic conducting surface; substrate magnetic material inclusion; Bandwidth; Constraint optimization; Design optimization; Dielectric substrates; Frequency selective surfaces; Magnetic materials; Magnetic resonance; Metamaterials; Periodic structures; Resonant frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2004. IEEE

Print_ISBN

0-7803-8302-8

Type

conf

DOI

10.1109/APS.2004.1329797

Filename

1329797