Efficient optimization-oriented design methodology of high-order 3-D filters using 2-D and 3-D electromagnetic simulators

Journal ar
International Journal of Circuit Theory and Applications
  • Volumen: 43
  • Número: 10
  • Fecha: 01 January 2015
  • Páginas: 1431-1445
  • ISSN: 1097007X 00989886
  • Source Type: Journal
  • DOI: 10.1002/cta.2008
  • Document Type: Article
  • Publisher: John Wiley and Sons Ltd Southern Gate Chichester, West Sussex PO19 8SQ
Copyright © 2014 John Wiley & Sons, Ltd. This paper proposes a computationally highly efficient interface between two-dimensional (2-D) and three-dimensional (3-D) electromagnetic (EM) simulators for the optimization-oriented design of high-order 3-D filters. In a first step, the novel optimization-oriented design methodology aligns the 3-D EM simulator response with the 2-D EM simulator response of a low-order 3-D filter by using an inverse linear space mapping optimization technique. Then, a second mapping performs a calibration with the optimal 2-D and 3-D design parameters obtained from the first mapping. The optimization of high-order filters is carried out using only the efficient 2-D EM simulator, and the calibration equations directly give the design parameters of the 3-D filter. The potential and the effectiveness of the proposed optimization-oriented design methodology are demonstrated through the design of C-band 3-D evanescent rectangular waveguide bandpass filters with increasing orders from three to eight.

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