Asymptotic convergence in the FDTD and TLM methods

被引：0

作者：

Rickard, Yotka S. ^{[1
]}

Li, Ying ^{[1
]}

Nikolova, Natalia K. ^{[1
]}

机构：

[1] McMaster Univ, Dept Elect & Comp Engn, Hamilton, ON L8S 4K1, Canada

来源：

PROCEEDINGS OF THE SECOND IASTED INTERNATIONAL CONFERENCE ON ANTENNAS, RADAR, AND WAVE PROPAGATION | 2005年

关键词：

electromagnetic singularities; metal details; FDTD methods; time-domain TLM method;

D O I：

暂无

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：

We compare the accuracy of Yee's finite-difference time domain (FDTD) method and the time domain transmission-line matrix (TLM) method in representing internal metal details containing convex and concave edges and comers. We investigate the asymptotic convergence of both methods and propose a simple and effective post-process whereby the asymptotic estimate is obtained with only two coarse-grid simulations. The comparison shows an equivalent or better convergence of the FDTD method in comparison with the TLM method, as well as better accuracy with coarse discretizations.

引用

页码：38 / 43

页数：6

共 25 条

[1] Subcell treatment of 90 degrees metal corners in FDTD [J].

Anderson, J ;

Okoniewski, M ;

Stuchly, SS .

ELECTRONICS LETTERS, 1995, 31 (25) :2159-2160

[2]

[Anonymous], 1996, FRONT BIOSCI

[3] Computational electromagnetic methods for interconnects and small structures [J].

Balanis, CA ;

Polycarpou, AC ;

Georgakopoulos, SV .

SUPERLATTICES AND MICROSTRUCTURES, 2000, 27 (5-6) :539-543

[4] Local stereoscopic field singularity models for FDTD analysis of guided wave problems [J].

Celuch-Marcysiak, M .

2003 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-3, 2003, :1137-1140

[5] ANALYSIS OF CURVED AND ANGLED SURFACES ON A CARTESIAN MESH USING A NOVEL FINITE-DIFFERENCE TIME-DOMAIN ALGORITHM [J].

CRADDOCK, IJ ;

RAILTON, CJ .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1995, 43 (10) :2460-2465

[6] A new technique for the stable incorporation of static field solutions in the FDTD method for the analysis of thin wires and narrow strips [J].

Craddock, IJ ;

Railton, CJ .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1998, 46 (08) :1091-1096

[7]

DU H, 2003, 19 ANN REV PROGR APP, P383

[8] Analysis of inclined microstrip patch antenna using enhanced FDTD equations [J].

Esselle, KP ;

Foroughipour, M .

ELECTRONICS LETTERS, 1999, 35 (11) :853-854

[9] Analysis of sharp metal edges at 45° to the FDTD grid [J].

Esselle, KP ;

Okoniewski, M ;

Stuchly, MA .

IEEE MICROWAVE AND GUIDED WAVE LETTERS, 1999, 9 (06) :221-223

[10]

ESSELLE KP, 1997, IEEE AP S INT S, V4, P2176

← 1 2 3 →