Frequency/time-domain modelling of 3D waveguide structures by a BI-RME approach

✍ Scribed by P. Arcioni; M. Bozzi; M. Bressan; G. Conciauro; L. Perregrini

• Publisher: John Wiley and Sons
• Year: 2002
• Tongue: English
• Weight: 391 KB
• Volume: 15
• Category: Article
• ISSN: 0894-3370
• DOI: 10.1002/jnm.429

✦ Synopsis

Abstract

This paper presents a full wave method for the determination of the mathematical model of a 3D waveguide structure in the form of the pole expansion in the s‐plane of its generalized admittance matrix. The method is based on a boundary integral‐resonant mode expansion approach. By the introduction of appropriate state‐variables, the method leads to the pole expansion by solving a linear generalized eigenvalue problem, like in the well‐known techniques used up to now in frequency/time domain modelling based on finite difference or finite element methods. With respect to these methods we have the advantage of a significant reduction in both memory allocation and computing time. Two examples show the accuracy of the results and the efficiency of the method. Copyright © 2002 John Wiley & Sons, Ltd.