Analyzing electromagnetic structures with curved boundaries on Cartesian FDTD meshes

被引：61

作者：

Hao, Y ^{[1
]}

Railton, CJ ^{[1
]}

机构：

[1] Univ Bristol, Fac Engn, Ctr Commun Res, Bristol BS8 1TR, Avon, England

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1998年 / 46卷 / 01期

关键词：

algorithms; FDTD methods;

D O I：

10.1109/22.654926

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：

In this paper, a new finite-difference time domain (FDTD) algorithm is investigated to analyze electromagnetic structures with curved boundaries using a Cartesian coordinate system, The new algorithm is based on a nonorthogonal FDTD method, However, only those cells near the curved boundaries are calculated by nonorthogonal FDTD formulas; most of the grid is orthogonal and can be determined by traditional FDTD formulas, Therefore, this new algorithm is more efficient than general nonorthogonal FDTD schemes in terms of computer resources such as memory and central processing unit (CPU) time, Simulation results are presented and compared to those using other methods.

引用

页码：82 / 88

页数：7

共 13 条

[1] ANALYSIS OF THE NUMERICAL ERROR CAUSED BY THE STAIR-STEPPED APPROXIMATION OF A CONDUCTING BOUNDARY IN FDTD SIMULATIONS OF ELECTROMAGNETIC PHENOMENA [J].

CANGELLARIS, AC ;

WRIGHT, DB .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1991, 39 (10) :1518-1525

[2] FDTD ALGORITHM IN CURVILINEAR COORDINATES [J].

FUSCO, M .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1990, 38 (01) :76-89

[3] A STUDY OF THE NONORTHOGONAL FDTD METHOD VERSUS THE CONVENTIONAL FDTD TECHNIQUE FOR COMPUTING RESONANT FREQUENCIES OF CYLINDRICAL CAVITIES [J].

HARMS, PH ;

LEE, JF ;

MITTRA, R .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1992, 40 (04) :741-746

[4] THREDS - A FINITE-DIFFERENCE TIME-DOMAIN EMP CODE IN 3D SPHERICAL COORDINATES [J].

HOLLAND, R .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1983, 30 (06) :4592-4595

[5] FINITE-DIFFERENCE SOLUTION OF MAXWELLS EQUATIONS IN GENERALIZED NONORTHOGONAL COORDINATES [J].

HOLLAND, R .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1983, 30 (06) :4589-4591

[6] FINITE-DIFFERENCE TIME-DOMAIN MODELING OF CURVED SURFACES [J].

JURGENS, TG ;

TAFLOVE, A ;

UMASHANKAR, K ;

MOORE, TG .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1992, 40 (04) :357-366

[7] 3-DIMENSIONAL CONTOUR FDTD MODELING OF SCATTERING FROM SINGLE AND MULTIPLE BODIES [J].

JURGENS, TG ;

TAFLOVE, A .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1993, 41 (12) :1703-1708

[8]

LEE JF, 1992, IEEE T MICROW THEORY, V40, P346

[9]

RAILTON CJ, 1995, ELECT LETT, V31

[10]

RAILTON CJ, 1966, P I ELECT ENG H, V143, P367

← 1 2 →