Finite-difference time-domain algorithm for solving Maxwell`s equations in rotationally symmetric geometries

Journal Article · Sat Jun 01 04:00:00 EDT 1996 · IEEE Transactions on Microwave Theory and Techniques

DOI:https://doi.org/10.1109/22.506441· OSTI ID:253651

Chen, Y ^[1]; Mittra, R ^[2]; Harms, P ^[3]

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1. Hong Kong Polytechnic Univ. (Hong Kong). Dept. of Electronic Engineering
2. Univ. of Illinois, Urbana, IL (United States). Dept. of Electrical and Computer Engineering
3. Univ. of Kentucky, Lexington, KY (United States). Dept. of Electrical and Computer Engineering

The solution of Maxwell`s equations in the time domain is becoming increasingly important as a tool for analyzing the microwave systems. In this paper, an efficient finite-difference time-domain algorithm (FDTD) is presented for solving Maxwell`s equations with rotationally symmetric geometries. The azimuthal symmetry enables one to employ a two-dimensional (2-D) difference lattice by projecting the three-dimensional (3-D) Yee-cell in cylindrical coordinates (r, {phi}, z) onto the r-z plane. Extensive numerical results have been derived for various cavity structures and these results have been compared with those available in the literature. Excellent agreement has been observed for all of the cases investigated.

• Sponsoring Organization: USDOE
• OSTI ID: 253651
• Journal Information: IEEE Transactions on Microwave Theory and Techniques, Journal Name: IEEE Transactions on Microwave Theory and Techniques Journal Issue: 6 Vol. 44; ISSN IETMAB; ISSN 0018-9480
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ALGORITHMS
CAVITY RESONATORS
COMPARATIVE EVALUATIONS
ELECTROMAGNETIC FIELDS
FINITE DIFFERENCE METHOD
MATHEMATICAL MODELS
MAXWELL EQUATIONS
MICROWAVE EQUIPMENT
THEORETICAL DATA