Application of micro-genetic algorithm (MGA) to the synthesis of broadband microwave absorbers comprising multiple frequency selective surfaces embedded in dielectric and magnetic media
Application of micro-genetic algorithm (MGA) to the synthesis of broadband microwave absorbers comprising multiple frequency selective surfaces embedded in dielectric and magnetic media
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应用微遗传算法（MGA）合成宽带微波吸收体，该吸收体包含嵌入介电和磁性介质中的多个频率选择表面
DOI：
10.1109/aps.2001.959560
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发表时间：
2001
期刊：
影响因子：
--
通讯作者：
N. R. Williams
中科院分区：
文献类型：
--
作者：
S. Chakravarty;R. Mittra;N. R. Williams
我们提出了一种新的优化方法来合成由嵌入在介质和磁性介质中的多个频率选择表面（fss）组成的宽带微波吸收器，这些表面可以是损耗的，也可以是无损的。采用微遗传算法（MGA）优化选择材料和每层厚度，FSS屏幕单元结构，其在x和y方向上的周期性，其在复合材料和屏幕材料中的位置。结果是一种多层复合材料，在规定的频率和入射角范围内同时提供最大的TE和TM波吸收。这种技术会自动为复合材料的总厚度设置一个上限。
We present a novel optimization procedure to synthesize broadband microwave absorbers comprised of multiple frequency selective surfaces (FSSs) embedded in dielectric and magnetic media, which may be lossy or lossless. A micro-genetic algorithm (MGA) is employed for optimal selection of the material and thickness of each layer, the FSS screen cell structure, its periodicities in the x- and y-directions, its placement within the composite and the screen material. The result is a multi-layer composite that provides maximum absorption of both TE and TM waves simultaneously for a prescribed range of frequencies and incident angles. This technique automatically places an upper bound on the total thickness of the composite.