TY - JOUR AB - 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. VL - 27 IS - 6 SN - 0332-1649 DO - 10.1108/03321640810905729 UR - https://doi.org/10.1108/03321640810905729 AU - Guarnieri Giacomo AU - Pelosi Giuseppe AU - Rossi Lorenzo AU - Selleri Stefano ED - Mauro Feliziani ED - Alessandro Salvini ED - Alessandro Toscano ED - Lucio Vegni PY - 2008 Y1 - 2008/01/01 TI - FE‐DD based permittivity tolerance analysis in microwave waveguide filters T2 - COMPEL - The international journal for computation and mathematics in electrical and electronic engineering PB - Emerald Group Publishing Limited SP - 1236 EP - 1248 Y2 - 2024/04/19 ER -