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FDTD analysis for multiple arbitrarily shaped posts in a waveguide
Author(s) -
Dou W. B.,
Yung Edward K. N.
Publication year - 2000
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/1098-2760(20001105)27:3<216::aid-mop22>3.0.co;2-p
Subject(s) - finite difference time domain method , curl (programming language) , ferrite (magnet) , waveguide , microwave , scattering , perfectly matched layer , dielectric , optics , free space , materials science , physics , mathematical analysis , mathematics , computer science , optoelectronics , composite material , quantum mechanics , programming language
The FDTD analysis of multiple arbitrarily shaped posts, including a dielectric post, a ferrite post, and a conducting post, in a waveguide is presented. The waveguide is terminated by a PML (perfectly matched layer) at its two ports. The posts are placed in the working volume of FDTD lattices. The FDTD formulation is derived from Maxwell's curl equations within the uniaxial medium. In the interior working volume, the uniaxial medium is reduced to free space. The treatment of the ferrite material is based on the equation of motion of the magnetization vector. The scattering parameters of multiple arbitrarily shaped posts in the waveguide are presented, and are compared with the results from other methods. Good agreement is found. Some new calculation results are also presented. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 27: 216–220, 2000.