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Proceedings Paper

Optimized multilayered graded fractal FSS: microgenetic algorithm and comparison with experiment
Author(s): Yanan Sha; K. J. Vinoy; K. A. Jose; C. Neo; Vijay K. Varadan
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Paper Abstract

Radar absorbing material is a very effective means of RCS reduction in the content of stealth technology. In this paper, we present our design of multi-layer microwave absorber with fractal Frequency Selective Surface embedded. Micro-genetic algorithm is employed for the optimization of the design. Two designs are presented in the paper with regard to different frequency spectrum. The experimental result shown here indicates more than 15 dB reduction at X- band in the reflection of a flat surface, by the use of this configuration with lossy dielectrics, which is in good agreement with the simulation result.

Paper Details

Date Published: 11 July 2002
PDF: 8 pages
Proc. SPIE 4700, Smart Structures and Materials 2002: Smart Electronics, MEMS, and Nanotechnology, (11 July 2002); doi: 10.1117/12.475038
Show Author Affiliations
Yanan Sha, The Pennsylvania State Univ. (United States)
K. J. Vinoy, The Pennsylvania State Univ. (United States)
K. A. Jose, The Pennsylvania State Univ. (United States)
C. Neo, The Pennsylvania State Univ. (United States)
Vijay K. Varadan, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 4700:
Smart Structures and Materials 2002: Smart Electronics, MEMS, and Nanotechnology
Vijay K. Varadan, Editor(s)

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