Arbitrary planar microwave filter design by the FEM-GA approach

Wen Wang*, Yilong Lu, Jeffrey S. Fu

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

5 Scopus citations


The traditional microstrip or coplanar-waveguide filter design restricts filter structure to regular shapes so that the results may not be optimal. In this paper, we present a novel design approach that allows arbitrary planar structures. This approach combines two power-fill and flexible methods: the finite-element method (FEM) as the three-dimensional (3D) field simulator and the genetic algorithm (GA) as the optimization engine. In order to reduce the optimization time, parallel computing is also utilized. The FEM-GA design approach is much more flexible than traditional ones. Numerical examples are presented to show the validity and effectiveness of this approach.

Original languageEnglish
Pages (from-to)276-279
Number of pages4
JournalMicrowave and Optical Technology Letters
Issue number4
StatePublished - 20 05 2004
Externally publishedYes


  • Finite element method: genetic algorithm
  • Parallel computing
  • Planar microwave filter


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