期刊
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
卷 49, 期 6, 页码 1050-1059出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/22.925490
关键词
frequency-selective surfaces; genetic algorithm; microgenetic algorithm; microwave absorbers; multilayer dielectrics
In this paper, we present a procedure for synthesizing broad-band microwave absorbers incorporating frequency-selective surface (FSS) screens embedded in dielectric media using a binary coded genetic algorithm (GA) [1], [2].The GA simultaneously and optimally chooses the material in each layer, thickness of each layer, FSS screen periodicity in the x- and y-directions, its placement within the dielectric composite, and the FSS screen material, Additionally, the GA generates the cell structure of the FSS screen. The result is a multilayer composite that provides maximum absorption of both TE and TM waves for a prescribed range of frequencies and incident angles. This technique automatically places an upper bound on the total thickness of the composite.
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