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Sensitivity analysis of the scattering parameters of microwave filters using the adjoint network method

  • Mahmoud A. El Sabbagh
  • , Mohamed H. Bakr*
  • , Natalia K. Nikolova
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

A novel approach is presented to calculate the sensitivities of the scattering parameters of microwave filters obtained with the full-wave mode-matching (MM) technique. Using only the MM simulation of the original network, the sensitivities of the scattering parameters with respect to all designable parameters are obtained. The adjoint network method (ANM) is applied to the generalized scattering matrices of the different filter components. This guarantees good accuracy of the calculated sensitivities. The implementation details are discussed for N-resonator ridge waveguide filters. Excellent agreement is obtained between the sensitivities calculated using ANM and those obtained using the expensive cen tral differences.

Original languageEnglish
Pages (from-to)596-606
Number of pages11
JournalInternational Journal of RF and Microwave Computer-Aided Engineering
Volume16
Issue number6
DOIs
StatePublished - Nov 2006
Externally publishedYes

Keywords

  • Adjoint network method
  • Mode-matching methods
  • Ridge waveguide filters
  • Scattering matrices
  • Sensitivity analysis

ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering

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