Stabilised CPFDTD algorithm for the analysis of arbitrary 3D PEC structures

CJ Railton; IJ Craddock

doi:10.1049/ip-map:19960572

Stabilised CPFDTD algorithm for the analysis of arbitrary 3D PEC structures

CJ Railton, IJ Craddock

Research output: Contribution to journal › Article (Academic Journal) › peer-review

22 Citations (Scopus)

Abstract

The use of the contour path finite difference time domain (CPFDTD) method with locally distorted contours is well known to give accurate results for curved metal structures. The numerical stability of this scheme is, however, not guaranteed and this can pose problems, especially in the analysis of closed resonant structures. In addition, the generation of the distorted mesh is itself not a trivial task. we present a modification to the three-dimensional scheme which, without sacrificing accuracy renders it numerically stable, robust and easy to generate. A step-by-step procedure is given whereby the distorted mesh can be automatically generated for any desired metal structure. The accuracy of the modified scheme is demonstrated for the analysis of a circular cylindrical resonant cavity which is tilted with respect to the Cartesian FDTD mesh

Original language	English
Pages (from-to)	367 - 372
Journal	IEE Proceedings - Microwaves, Antennas and Propagation
Volume	143
Issue number	5
DOIs	https://doi.org/10.1049/ip-map:19960572
Publication status	Published - Oct 1996

Bibliographical note

Sponsorship: The authors wish to thank Professor Joe McGeehan for the provision of facilities at the Centre for Communications Research

Publisher: Institution of Electrical Engineers (IEE)

Keywords

metal structures
contour path finite difference time domain method

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title = "Stabilised CPFDTD algorithm for the analysis of arbitrary 3D PEC structures",

abstract = "The use of the contour path finite difference time domain (CPFDTD) method with locally distorted contours is well known to give accurate results for curved metal structures. The numerical stability of this scheme is, however, not guaranteed and this can pose problems, especially in the analysis of closed resonant structures. In addition, the generation of the distorted mesh is itself not a trivial task. we present a modification to the three-dimensional scheme which, without sacrificing accuracy renders it numerically stable, robust and easy to generate. A step-by-step procedure is given whereby the distorted mesh can be automatically generated for any desired metal structure. The accuracy of the modified scheme is demonstrated for the analysis of a circular cylindrical resonant cavity which is tilted with respect to the Cartesian FDTD mesh",

keywords = "metal structures, contour path finite difference time domain method",

author = "CJ Railton and IJ Craddock",

note = "Sponsorship: The authors wish to thank Professor Joe McGeehan for the provision of facilities at the Centre for Communications Research Publisher: Institution of Electrical Engineers (IEE)",

year = "1996",

month = oct,

doi = "10.1049/ip-map:19960572",

language = "English",

volume = "143",

pages = "367 -- 372",

journal = "IEE Proceedings - Microwaves, Antennas and Propagation",

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publisher = "Institution of Engineering and Technology (IET)",

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TY - JOUR

T1 - Stabilised CPFDTD algorithm for the analysis of arbitrary 3D PEC structures

AU - Railton, CJ

AU - Craddock, IJ

N1 - Sponsorship: The authors wish to thank Professor Joe McGeehan for the provision of facilities at the Centre for Communications Research Publisher: Institution of Electrical Engineers (IEE)

PY - 1996/10

Y1 - 1996/10

N2 - The use of the contour path finite difference time domain (CPFDTD) method with locally distorted contours is well known to give accurate results for curved metal structures. The numerical stability of this scheme is, however, not guaranteed and this can pose problems, especially in the analysis of closed resonant structures. In addition, the generation of the distorted mesh is itself not a trivial task. we present a modification to the three-dimensional scheme which, without sacrificing accuracy renders it numerically stable, robust and easy to generate. A step-by-step procedure is given whereby the distorted mesh can be automatically generated for any desired metal structure. The accuracy of the modified scheme is demonstrated for the analysis of a circular cylindrical resonant cavity which is tilted with respect to the Cartesian FDTD mesh

AB - The use of the contour path finite difference time domain (CPFDTD) method with locally distorted contours is well known to give accurate results for curved metal structures. The numerical stability of this scheme is, however, not guaranteed and this can pose problems, especially in the analysis of closed resonant structures. In addition, the generation of the distorted mesh is itself not a trivial task. we present a modification to the three-dimensional scheme which, without sacrificing accuracy renders it numerically stable, robust and easy to generate. A step-by-step procedure is given whereby the distorted mesh can be automatically generated for any desired metal structure. The accuracy of the modified scheme is demonstrated for the analysis of a circular cylindrical resonant cavity which is tilted with respect to the Cartesian FDTD mesh

KW - metal structures

KW - contour path finite difference time domain method

U2 - 10.1049/ip-map:19960572

DO - 10.1049/ip-map:19960572

M3 - Article (Academic Journal)

VL - 143

SP - 367

EP - 372

JO - IEE Proceedings - Microwaves, Antennas and Propagation

JF - IEE Proceedings - Microwaves, Antennas and Propagation

SN - 1350-2417

IS - 5

ER -

Stabilised CPFDTD algorithm for the analysis of arbitrary 3D PEC structures

Abstract

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Keywords

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