A grounded MoM-based spatial green's function technique for the analysis of multilayered circuits in rectangular shielded enclosures

Juan Sebastian Gomez Diaz, Maria Garcia-Vigueras, Alejandro Álvarez-Melcón

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

A continuous counterpart of the spatial images technique is proposed for the computation of the multilayered boxed Green's functions and their derivatives. The method employs a set of auxiliary linear distribution of sources to effectively impose the potential boundary conditions along the whole cavity contour. The imposition of these boundary conditions leads to a set of integral equations (IEs), on the unknown distributions of the auxiliary sources, which are solved by applying a method of moments approach. A convergence/efficiency study, related to the test and basis functions choice, is then presented and discussed. The technique is combined with the use of dynamic ground planes generating mirror basis functions, which completely remove any singular instability. Finally, the computed Green's functions are included into a mixed-potential IE formulation for the accurate and very fast analysis of practical multilayered shielded circuits. The proposed technique does not suffer from any convergence issue and it is extremely competitive in terms of accuracy and efficiency as compared to other methods known to the authors.

Original languageEnglish (US)
Article number5710444
Pages (from-to)533-541
Number of pages9
JournalIEEE Transactions on Microwave Theory and Techniques
Volume59
Issue number3
DOIs
StatePublished - Mar 1 2011
Externally publishedYes

Keywords

  • Boxed circuits
  • Green's functions
  • integral equations (IEs)
  • method of moments (MoM)
  • microwave filters

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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