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A novel design methodology for reconfigurable frequency selective surfaces using genetic algorithms
- Source :
- IEEE Transactions on Antennas and Propagation. April, 2005, Vol. 53 Issue 4, p1390, 11 p.
- Publication Year :
- 2005
-
Abstract
- In this paper, a new reconfigurable frequency selective surface (RFSS) design concept is introduced. A grid of simple metallic patches interconnected by a matrix of switches is proposed as the unit cell of an RFSS. The switches are independently addressable and provide significant transmission and reflection flexibility over a large range of frequencies. This flexibility is exploited by optimizing the switch settings using a genetic algorithm to produce a desired frequency response. The versatility of the design technique is demonstrated by presenting several examples of genetically optimized RFSS. The first example to be considered is a linearly polarized FSS that can be reconfigured for either single-, dual-, or tri-band operation. An RFSS design is also introduced that can be optimized to have a frequency response that is polarization independent in one state (i.e., for one combination of switch settings) and polarization dependent in another state. Index Terms--Frequency selective surfaces (FSSs), genetic algorithms, microgenetic algorithms, reconfigurable frequency selective surfaces (RFSS).
Details
- Language :
- English
- ISSN :
- 0018926X
- Volume :
- 53
- Issue :
- 4
- Database :
- Gale General OneFile
- Journal :
- IEEE Transactions on Antennas and Propagation
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.132053567