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2017-07-07

MOEA/D-GO+FDTD for Optimization Design of Fragment-Type Structure

By Da-Wei Ding, Xiao-Dong Ding, Jing Xia, and Lixia Yang
Progress In Electromagnetics Research M, Vol. 58, 117-124, 2017
doi:10.2528/PIERM17042702

Abstract

Fragment-type structure has been used to design antennas and microwave circuits. Special optimization technique, including optimization algorithm and EM software (electromagnetic) simulator, is necessary for the design of this kind of structure. In this paper, a novel optimization technique, MOEA/D-GO+FDTD, is proposed, where MOEA/D-GO (multiobjective evolutionary algorithm combined with enhanced genetic operators) serves as the optimization algorithm and Finite-Difference Time-Domain (FDTD) method serves as the electromagnetic simulator. As an example, a compact bandpass microstrip filter is designed by using MOEA/D-GO+FDTD. Firstly, numerical simulation of the fragment-type microstrip filter by using FDTD method is investigated. Secondly, a microstrip filter operating at 3.8GHz-6.5GHz is designed through optimizing return loss, insertion loss, and out-of-band rejection. Finally, comparison of the computational costs between different electromagnetic simulators verifies high efficiency of the proposed MOEA/D-GO+FDTD.

Citation


Da-Wei Ding, Xiao-Dong Ding, Jing Xia, and Lixia Yang, "MOEA/D-GO+FDTD for Optimization Design of Fragment-Type Structure," Progress In Electromagnetics Research M, Vol. 58, 117-124, 2017.
doi:10.2528/PIERM17042702
http://jpier.org/PIERM/pier.php?paper=17042702

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