FE‐DD based permittivity tolerance analysis in microwave waveguide filters

Abstract

Purpose

The paper's aim is to devise a fast method for microwave waveguide filter permittivity tolerance analysis.

Design/methodology/approach

A 2D finite elements (FEs) formulation is combined via a Schur complement‐based domain decomposition (DD) technique to reduce the tolerance affected part of the analysis to a smaller domain.

Findings

The paper shows how to combine FEs and DD in an efficient way for material parameters tolerance analyses in microwave waveguide filters, showing speedup results.

Research limitations/implications

The formulation here presented is 2D but can be easily extended to 3D.

Originality/value

The application of DD to solve numerically large problem is well‐known, the idea and organization of the algorithm to allow iteration on parameter values on a single sub‐domain is here proposed.

Citation

Guarnieri, G., Pelosi, G., Rossi, L. and Selleri, S. (2008), "FE‐DD based permittivity tolerance analysis in microwave waveguide filters", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 27 No. 6, pp. 1236-1248. https://doi.org/10.1108/03321640810905729