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PML termination of conducting media in the finite difference time domain method for bodies of revolution (BORs)
Author(s) -
Carrión José,
Farahat Nader
Publication year - 2006
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.629
Subject(s) - finite difference time domain method , electrical conductor , domain (mathematical analysis) , coaxial , symmetry (geometry) , perfectly matched layer , time domain , dielectric , finite difference method , rotational symmetry , physics , mathematical analysis , optics , mathematics , computer science , electrical engineering , engineering , telecommunications , geometry , optoelectronics , mechanics , computer vision
In this paper we discuss the use of perfectly matched layers (PMLs) for the termination of conducting media in the body of revolution finite difference time domain (BOR–FDTD) algorithm. This type of termination enables us, to accurately and efficiently model long conductors possessing rotational symmetry. The formulation is validated by investigating the propagation characteristics of two practical guiding wave structures, viz., a coaxial cable (RG‐142) and a circular waveguide operating in the TE 11 mode. Both the conductors as well as dielectrics are extended into the PML region in order to simulate infinitely long guides. Copyright © 2006 John Wiley & Sons, Ltd.