Title :
A posteriori error estimation results for the FEM analysis of a waveguide filter
Author :
Botha, Matthys M. ; Davidson, David B.
Author_Institution :
Dept. of Electr. & Electron. Eng., Stellenbosch Univ., South Africa
Abstract :
The use of an explicit, residual-based, a posteriori error indicator for directing a single-level p-refinement of the finite element method analysis of a waveguide filter is investigated. Hierarchical, curl-conforming elements of various orders are employed. It is shown that substantial improvements upon uniform element polynomial order discretizations can be obtained in terms of accuracy versus number of degrees of freedom.
Keywords :
error analysis; finite element analysis; waveguide filters; FEM analysis; a posteriori error estimation; hierarchical curl-conforming element; polynomial order discretization; single-level p-refinement; waveguide filter; Africa; Apertures; Boundary value problems; Error analysis; Filters; Finite element methods; Microwave devices; Microwave theory and techniques; Polynomials; Vectors;
Conference_Titel :
Africon Conference in Africa, 2002. IEEE AFRICON. 6th
Print_ISBN :
0-7803-7570-X
DOI :
10.1109/AFRCON.2002.1159966
