Aspects of mesh generation for characteristic-mode analysis [em programmer´s notebook]

Author

Eichler, Jan ; Hazdra, Pavel ; Capek, Miloslav

Author_Institution

Department of Electromagnetic Field, Faculty of Electrical Engineering, Czech Technical University in Prague, Technicka 2, 16627, Prague, Czech Republic

Volume

56

Issue

3

fYear

2014

fDate

Jun-14

Firstpage

172

Lastpage

183

Abstract

This paper deals with practical aspects of mesh generation for the theory of characteristic modes. First, we describe a tool for surface-mesh generation in MATLAB. The tool is afterwards used for an analysis of relative convergence of modal results computed by an in-house modal analyzer in MATLAB. Different meshing scenarios are selected for a dipole, a rectangular patch, and a rectangular patch with a slot, and a recommendation for a mesh-refinement strategy is given. The study is supported by a simple error analysis, considering the approximation error in the evaluation of moment-matrix elements. It is shown that the results are also applicable for the commercial implementation in FEKO software.

Keywords

Approximation methods; Convergence; Current density; MATLAB; Propagation measurements; Resonant frequency; Scattering parameters; Characteristic modes; Method of Moments; approximation error; convergence; mesh generation; mesh refinement;

fLanguage

English

Journal_Title

Antennas and Propagation Magazine, IEEE

Publisher

ieee

ISSN

1045-9243

Type

jour

DOI

10.1109/MAP.2014.6867702

Filename

6867702