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Arbitrary polygon shape optimization applied to multiband frequency selective surface inverse design
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DOI：10.1016/j.aeue.2022.154476.png)
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An arbitrary polygon shape optimization method is proposed for multiband frequency selective surface (FSS) inverse design in this paper. Different from the traditional deterministic methods, our approach uses the rela-tionship between lumped parameter of equivalent circuit model (ECM) and distribution parameter which can readily determine the search direction. Meanwhile, the iteration step size is determined by the normalized current density. Polygon representation of FSS element can improve the degree of freedom of structural opti-mization to a great extent compare with parameterized method. This approach has the ability to avoid the conflict of multi-objective optimization and optimize multiband FSS effectively and accurately. A dual-band FSS is taken as a case to verify the method. The simulation results of optimized structure meet the expectation and are basically coincident with measurement results, thus verifying the feasibility of the optimization method.
Keyword:
Shape optimization
Frequency selective surface (FSS)
Equivalent circuit model (ECM)
期刊
A
IF:
3.2
论文数:
5.8K
被引数:
8.3K
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