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Marching-on-in-degree solver of time domain finite element-boundary integral method

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4 Author(s)
Huanhuan Zhang ; Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China ; Yifei Shi ; Zhenhong Fan ; Rushan Chen

A marching-on-in-degree solver of time domain finite element-boundary integral method is proposed for the analysis of transient electromagnetic scattering from complex materials and fine detail structures. Unlike the marching-on-in-time solver of time domain finite element-boundary integral method, the proposed algorithm uses weighted Laguerre polynomials as temporal basis functions and testing functions, which leads to a recursive matrix equation solved degree by degree. Due to the property of weighted Laguerre polynomials, the proposed method does not involve late-time instability. Numerical results demonstrate that the proposed method is both stable and accurate.

Published in:

Microwave Conference Proceedings (APMC), 2012 Asia-Pacific

Date of Conference:

4-7 Dec. 2012