Title :
Novel planar electromagnetic absorber designs using genetic algorithms
Author :
Cui, Suomin ; Weile, Daniel S. ; Volakis, John L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Delaware Univ., Newark, DE, USA
fDate :
6/1/2006 12:00:00 AM
Abstract :
A new type of absorber is proposed created by drilling holes in a single layer of lossy material. The new absorber is designed using genetic algorithms to achieve low reflectance over a wide frequency band. Results based on genetic algorithms demonstrate that the new absorber outperforms multilayer absorbers and absorbers embedding frequency selective surfaces between lossy materials. Numerical results are presented for different bandwidths, wave incidence angles, and polarizations.
Keywords :
absorbing media; dielectric materials; electromagnetic wave absorption; electromagnetic wave polarisation; frequency selective surfaces; genetic algorithms; reflectivity; embedding frequency selective surface; genetic algorithm; lossy material; planar electromagnetic absorber; polarization; reflectance; wave incidence angle; wide frequency band; Algorithm design and analysis; Bandwidth; Coatings; Dielectric materials; Drilling; Frequency selective surfaces; Genetic algorithms; Nonhomogeneous media; Slabs; Solid modeling; Electromagnetic absorbers; frequency selective surface (FSS) absorber; genetic algorithms (GAs); textured absorber;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2006.875460
