A robust 3-D higher-order finite element analysis of microwave devices

Author

Liu, Jian ; Jin, Jian-Ming ; Yung, E.K.N. ; Chen, Ru Shan

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA

Volume

4

fYear

2002

fDate

2002

Firstpage

678

Abstract

In this paper, we present a robust higher-order finite element method (FEM) for efficient and accurate analysis of microwave devices. The solution algorithm employs higher-order tetrahedral elements, which are particularly suitable for modeling complex devices, in conjunction with the multifrontal solver. This algorithm is combined with the asymptotic waveform evaluation (AWE) and complex frequency hopping (CFH) techniques to perform fast frequency-sweep calculations. Numerical results are presented to demonstrate the performance of the solution algorithm.

Keywords

finite element analysis; microwave devices; 3D higher-order FEA; AWE; CFH; FEM; asymptotic waveform evaluation; complex device modeling; complex frequency hopping; fast frequency-sweep calculations; finite element analysis; finite element method; higher-order tetrahedral elements; microwave devices; multifrontal solver; performance; robust FEA; Equations; Finite element methods; Frequency; Iterative algorithms; Microwave devices; Robustness; Sparse matrices; Surface waves; Transmission line matrix methods; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2002. IEEE

Print_ISBN

0-7803-7330-8

Type

conf

DOI

10.1109/APS.2002.1017074

Filename

1017074