The treatment of geometrically small structures in FDTD by the modification of assigned material parameters

CJ Railton; DL Paul; IJ Craddock; GS Hilton

doi:10.1109/TAP.2005.860008

The treatment of geometrically small structures in FDTD by the modification of assigned material parameters

CJ Railton, DL Paul, IJ Craddock, GS Hilton

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42 Citations (Scopus)

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Abstract

A number of different improvements to the analysis by finite-difference time-domain (FDTD) of small structures, such as wires, strips and slots have been proposed in the literature. One of these methods takes account of the fringing fields associated with metal edges and wires by empirically modifying the assigned material parameters in neighboring cells. In this contribution it is shown that, in many cases, it is possible to derive these modified assigned material parameters (MAMPs) analytically. In this form, the approach provides an alternative, and novel, way of incorporating Static Field Solutions into the FDTD method which has advantages of simplicity and robustness over existing techniques. Results are presented for a number of structures including wire transmission lines and a microstrip patch antenna.

Translated title of the contribution	The treatment of geometrically small structures in FDTD by the modification of assigned material parameters
Original language	English
Article number	Issue 12
Pages (from-to)	4129 - 4136
Number of pages	8
Journal	IEEE Transactions on Antennas and Propagation
Volume	53
Issue number	12
DOIs	https://doi.org/10.1109/TAP.2005.860008
Publication status	Published - Dec 2005

Bibliographical note

Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Rose publication type: Journal article

Terms of use: Copyright © 2005 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

finite difference time domain (FDTD) method
microstrip antennas
transmission line theory

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10.1109/TAP.2005.860008

Railton IEEE AntPropTrans 2005Accepted author manuscript, 427 KB

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title = "The treatment of geometrically small structures in FDTD by the modification of assigned material parameters",

abstract = "A number of different improvements to the analysis by finite-difference time-domain (FDTD) of small structures, such as wires, strips and slots have been proposed in the literature. One of these methods takes account of the fringing fields associated with metal edges and wires by empirically modifying the assigned material parameters in neighboring cells. In this contribution it is shown that, in many cases, it is possible to derive these modified assigned material parameters (MAMPs) analytically. In this form, the approach provides an alternative, and novel, way of incorporating Static Field Solutions into the FDTD method which has advantages of simplicity and robustness over existing techniques. Results are presented for a number of structures including wire transmission lines and a microstrip patch antenna.",

keywords = "finite difference time domain (FDTD) method, microstrip antennas, transmission line theory",

author = "CJ Railton and DL Paul and IJ Craddock and GS Hilton",

note = "Publisher: Institute of Electrical and Electronics Engineers (IEEE) Rose publication type: Journal article Terms of use: Copyright {\textcopyright} 2005 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. ",

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AU - Railton, CJ

AU - Paul, DL

AU - Craddock, IJ

AU - Hilton, GS

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N2 - A number of different improvements to the analysis by finite-difference time-domain (FDTD) of small structures, such as wires, strips and slots have been proposed in the literature. One of these methods takes account of the fringing fields associated with metal edges and wires by empirically modifying the assigned material parameters in neighboring cells. In this contribution it is shown that, in many cases, it is possible to derive these modified assigned material parameters (MAMPs) analytically. In this form, the approach provides an alternative, and novel, way of incorporating Static Field Solutions into the FDTD method which has advantages of simplicity and robustness over existing techniques. Results are presented for a number of structures including wire transmission lines and a microstrip patch antenna.

AB - A number of different improvements to the analysis by finite-difference time-domain (FDTD) of small structures, such as wires, strips and slots have been proposed in the literature. One of these methods takes account of the fringing fields associated with metal edges and wires by empirically modifying the assigned material parameters in neighboring cells. In this contribution it is shown that, in many cases, it is possible to derive these modified assigned material parameters (MAMPs) analytically. In this form, the approach provides an alternative, and novel, way of incorporating Static Field Solutions into the FDTD method which has advantages of simplicity and robustness over existing techniques. Results are presented for a number of structures including wire transmission lines and a microstrip patch antenna.

KW - finite difference time domain (FDTD) method

KW - microstrip antennas

KW - transmission line theory

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DO - 10.1109/TAP.2005.860008

M3 - Article (Academic Journal)

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JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 12

M1 - Issue 12

ER -

The treatment of geometrically small structures in FDTD by the modification of assigned material parameters

Abstract

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