WAVEGUIDE SIMULATION USING THE HIGH-ORDER SYMPLECTIC FINITE-DIFFERENCE TIME-DOMAIN SCHEME | Zendy

Wei E. I. Sha | Zendy; Xianliang Wu | Zendy; Zhixiang Huang | Zendy; Mingsheng Chen | Zendy

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WAVEGUIDE SIMULATION USING THE HIGH-ORDER SYMPLECTIC FINITE-DIFFERENCE TIME-DOMAIN SCHEME

Author(s) -

Wei E. I. Sha,

Xianliang Wu,

Zhixiang Huang,

Mingsheng Chen

Publication year - 2009

Publication title -

progress in electromagnetics research b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.208

H-Index - 47

ISSN - 1937-6472

DOI - 10.2528/pierb09012302

Subject(s) - symplectic geometry , scheme (mathematics) , order (exchange) , symplectic integrator , finite difference time domain method , waveguide , mathematics , finite difference scheme , computer science , domain (mathematical analysis) , mathematical analysis , physics , optics , symplectic manifold , finance , economics

—The high-order symplectic finite-difference time-domain scheme is applied to modeling and simulation of waveguide structures. First, the perfect electric conductor boundary is treated by the image theory. Second, to excite all possible modes, an efficient source excitation method is proposed. Third, the modified perfectly matched layer is extended to its high-order form for absorbing the evanescent waves.Finally, a high-order scattering parameter extraction technique is developed. The cases of waveguide resonator, waveguide discontinuities, and periodic waveguide structure demonstrate that the high-order symplectic finite-difference time-domain scheme can obtain better numerical results than the traditional finite-difference time- domain method and save computer resources. Corresponding author: W. Sha (wsha@eee.hku.hk). 238,Sha et al.

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