A General Scheme for the Discontinuous Galerkin Time-Domain Modeling and S-Parameter Extraction of Inhomogeneous Waveports

被引：26

作者：

Chen, Geng ^{[1
]}

Zhao, Lei ^{[1
]}

Yu, Wenhua ^{[1
]}

Yan, Su ^{[2
]}

Zhang, Kedi ^{[2
]}

Jin, Jian-Ming ^{[2
]}

机构：

[1] Jiangsu Normal Univ, Sch Math & Stat, Ctr Computat Sci & Engn, Xuzhou 22116, Peoples R China

[2] Univ Illinois, Dept Elect & Comp Engn, Ctr Computat Electromagnet, Urbana, IL 61801 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2018年 / 66卷 / 04期

基金：

美国国家科学基金会;

关键词：

Discontinuous Galerkin time domain (DGTD); S-parameter extraction; total-field/scattered-field (TF/SF) decomposition; waveport modeling; FINITE-ELEMENT-METHOD; WAVE-GUIDE; MAXWELLS EQUATIONS; FIELD; IMPLEMENTATION; COMPUTATION; ALGORITHM; MODES;

D O I：

10.1109/TMTT.2017.2785800

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A general numerical scheme is proposed for the waveport modeling and scattering-parameter (S-parameter) extraction of inhomogeneous waveports with the discontinuous Galerkin time-domain method. In this scheme, the waveports are truncated with perfectly matched layers with a hybrid mesh automatically extruded from the mesh of the physical device to be simulated. The waveports are then excited by a total-field/scattered-field technique, with which the incident and scattered waves can be obtained for an accurate calculation of the S-parameters. A novel eigenmode solver is also developed to calculate the required modal profiles for the eigenmodes in both homogeneous and inhomogeneous waveports. Special attention is paid to the S-parameter extraction for evanescent modes, which has been a difficult task for time-domain simulations. Numerical examples are given to validate the proposed numerical scheme.

引用

页码：1701 / 1712

页数：12

共 32 条

[1] Source and Boundary Implementation in Vector and Scalar DGTD [J].

Alvarez, J. ;

Angulo, Luis D. ;

Fernandez Pantoja, M. ;

Rubio Bretones, A. ;

Garcia, Salvador G. .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2010, 58 (06) :1997-2003

[2] A Spurious-Free Discontinuous Galerkin Time-Domain Method for the Accurate Modeling of Microwave Filters [J].

Alvarez, Jesus ;

Diaz Angulo, Luis ;

Rubio Bretones, Amelia ;

Garcia, Salvador G. .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2012, 60 (08) :2359-2369

[3]

[Anonymous], 2005, Computational Electrodynamics: the Finite-Difference Time-Domain Method

[4]

[Anonymous], 2014, FINITE ELEMENT METHO

[5]

[Anonymous], 1998, Solution of large-scale eigenvalue problems with implicitly restarted Arnoldi methods, DOI DOI 10.1137/1.9780898719628

[6] Field-based scattering-matrix extraction scheme for the FVTD method exploiting a flux-splitting algorithm [J].

Baumann, D ;

Fumeaux, C ;

Vahldieck, R .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2005, 53 (11) :3595-3605

[7]

Chang C. - P., 2017, INT J NUMER MODEL EL

[8] Locally divergence-free discontinuous Galerkin methods for the Maxwell equations [J].

Cockburn, B ;

Li, FY ;

Shu, CW .

JOURNAL OF COMPUTATIONAL PHYSICS, 2004, 194 (02) :588-610

[9] A spatial high-order hexahedral discontinuous Galerkin method to solve Maxwell's equations in time domain [J].

Cohen, G. ;

Ferrieres, X. ;

Pernet, S. .

JOURNAL OF COMPUTATIONAL PHYSICS, 2006, 217 (02) :340-363

[10] Convergence and stability of a discontinuous Galerkin time-domain method for the 3D heterogeneous Maxwell equations on unstructured meshes [J].

Fezoui, L ;

Lanteri, S ;

Lohrengel, S ;

Piperno, S .

ESAIM-MATHEMATICAL MODELLING AND NUMERICAL ANALYSIS-MODELISATION MATHEMATIQUE ET ANALYSE NUMERIQUE, 2005, 39 (06) :1149-1176

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