Analysis of structures containing sharp oblique metal edges in FDTD using MAMPs

CJ Railton; DL Paul

doi:10.1109/TAP.2010.2052561

Analysis of structures containing sharp oblique metal edges in FDTD using MAMPs

CJ Railton, DL Paul

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Abstract

Previous enhancements to the finite difference time domain method have facilitated the analysis of structures such as those containing sharp metal edges which are aligned with the mesh or of smoothly curved metal objects. So far, however, there has been little work on the often encountered situation of thin metal edges which are inclined at an angle to the mesh other than for the special case of diagonal orientation. In this paper, the general case is examined and it is shown that the concept of modified assigned material parameters (MAMPs) can be extended to provide an effective and accurate means of treating this problem. Results are presented for curved microstrip patches, arbitrarily inclined rectangular microstrip patches and for the more complex case of a coplanar fed bow tie slot antenna.

Translated title of the contribution	Analysis of structures containing sharp oblique metal edges in FDTD using MAMPs
Original language	English
Pages (from-to)	2954 - 2960
Number of pages	8
Journal	IEEE Transactions on Antennas and Propagation
Volume	58
Issue number	9
DOIs	https://doi.org/10.1109/TAP.2010.2052561
Publication status	Published - Sept 2010

Bibliographical note

Publisher: IEEE
Rose publication type: Journal article

Terms of use: Copyright © 2010 IEEE. Reprinted from IEEE Transactions on Antennas and Propagation.

This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected].

By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Keywords

edges
finite difference time domain (FDTD)
modified assigned material parameters (MAMPs)
singularities

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Railton IEEE TransAntProp Sept2010Accepted author manuscript, 812 KB

http://hdl.handle.net/1983/1684

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title = "Analysis of structures containing sharp oblique metal edges in FDTD using MAMPs",

abstract = "Previous enhancements to the finite difference time domain method have facilitated the analysis of structures such as those containing sharp metal edges which are aligned with the mesh or of smoothly curved metal objects. So far, however, there has been little work on the often encountered situation of thin metal edges which are inclined at an angle to the mesh other than for the special case of diagonal orientation. In this paper, the general case is examined and it is shown that the concept of modified assigned material parameters (MAMPs) can be extended to provide an effective and accurate means of treating this problem. Results are presented for curved microstrip patches, arbitrarily inclined rectangular microstrip patches and for the more complex case of a coplanar fed bow tie slot antenna.",

keywords = "edges, finite difference time domain (FDTD), modified assigned material parameters (MAMPs), singularities",

author = "CJ Railton and DL Paul",

note = "Publisher: IEEE Rose publication type: Journal article Terms of use: Copyright {\textcopyright} 2010 IEEE. Reprinted from IEEE Transactions on Antennas and Propagation. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. ",

year = "2010",

month = sep,

doi = "10.1109/TAP.2010.2052561",

language = "English",

volume = "58",

pages = "2954 -- 2960",

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T1 - Analysis of structures containing sharp oblique metal edges in FDTD using MAMPs

AU - Railton, CJ

AU - Paul, DL

N1 - Publisher: IEEE Rose publication type: Journal article Terms of use: Copyright © 2010 IEEE. Reprinted from IEEE Transactions on Antennas and Propagation. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

PY - 2010/9

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N2 - Previous enhancements to the finite difference time domain method have facilitated the analysis of structures such as those containing sharp metal edges which are aligned with the mesh or of smoothly curved metal objects. So far, however, there has been little work on the often encountered situation of thin metal edges which are inclined at an angle to the mesh other than for the special case of diagonal orientation. In this paper, the general case is examined and it is shown that the concept of modified assigned material parameters (MAMPs) can be extended to provide an effective and accurate means of treating this problem. Results are presented for curved microstrip patches, arbitrarily inclined rectangular microstrip patches and for the more complex case of a coplanar fed bow tie slot antenna.

AB - Previous enhancements to the finite difference time domain method have facilitated the analysis of structures such as those containing sharp metal edges which are aligned with the mesh or of smoothly curved metal objects. So far, however, there has been little work on the often encountered situation of thin metal edges which are inclined at an angle to the mesh other than for the special case of diagonal orientation. In this paper, the general case is examined and it is shown that the concept of modified assigned material parameters (MAMPs) can be extended to provide an effective and accurate means of treating this problem. Results are presented for curved microstrip patches, arbitrarily inclined rectangular microstrip patches and for the more complex case of a coplanar fed bow tie slot antenna.

KW - edges

KW - finite difference time domain (FDTD)

KW - modified assigned material parameters (MAMPs)

KW - singularities

U2 - 10.1109/TAP.2010.2052561

DO - 10.1109/TAP.2010.2052561

M3 - Article (Academic Journal)

SN - 0018-926X

VL - 58

SP - 2954

EP - 2960

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 9

ER -

Analysis of structures containing sharp oblique metal edges in FDTD using MAMPs

Abstract

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