The treatment of singularities at 90⁰ and 270⁰ microstrip corners in FDTD by the modification of assigned material parameters

CJ Railton; DL Paul; IJ Craddock; GS Hilton

doi:10.1109/TAP.2007.900270

The treatment of singularities at 90⁰ and 270⁰ microstrip corners in FDTD by the modification of assigned material parameters

CJ Railton, DL Paul, IJ Craddock, GS Hilton

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Abstract

It has been recently shown that the efficiency of the finite-difference time-domain (FDTD) method for structures containing thin wires and metal edges is much increased by using modified assigned material parameters (MAMPs). These parameters may be calculated empirically and in many cases analytically. In this contribution, the technique is extended to include the case of 90⁰ and 270⁰ corners in microstrip which may exist at an arbitrary position within the plane of the mesh. A semi-analytical method is presented and applied to the analysis of a complex patch antenna. Results are presented which show that the use of MAMPs allows a much larger cell size to be used than would be needed to achieve the same accuracy using standard FDTD.

Translated title of the contribution	The treatment of singularities at 90° and 270° microstrip corners in FDTD by the modification of assigned material parameters
Original language	English
Pages (from-to)	2124 - 2129
Number of pages	6
Journal	IEEE Transactions on Antennas and Propagation
Volume	55
Issue number	7
DOIs	https://doi.org/10.1109/TAP.2007.900270
Publication status	Published - Jul 2007

Bibliographical note

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

Terms of use: Copyright © 2007 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) methods
planar waveguides.
planar objects

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10.1109/TAP.2007.900270

Railton IEEE TransAntProp 2007Accepted author manuscript, 500 KB

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title = "The treatment of singularities at 90⁰ and 270⁰ microstrip corners in FDTD by the modification of assigned material parameters",

abstract = "It has been recently shown that the efficiency of the finite-difference time-domain (FDTD) method for structures containing thin wires and metal edges is much increased by using modified assigned material parameters (MAMPs). These parameters may be calculated empirically and in many cases analytically. In this contribution, the technique is extended to include the case of 90⁰ and 270⁰ corners in microstrip which may exist at an arbitrary position within the plane of the mesh. A semi-analytical method is presented and applied to the analysis of a complex patch antenna. Results are presented which show that the use of MAMPs allows a much larger cell size to be used than would be needed to achieve the same accuracy using standard FDTD.",

keywords = "finite-difference time-domain (FDTD) methods, planar waveguides., planar objects",

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} 2007 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 = "2007",

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language = "English",

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AU - Railton, CJ

AU - Paul, DL

AU - Craddock, IJ

AU - Hilton, GS

N1 - Publisher: Institute of Electrical and Electronics Engineers (IEEE) Rose publication type: Journal article Terms of use: Copyright © 2007 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 - 2007/7

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N2 - It has been recently shown that the efficiency of the finite-difference time-domain (FDTD) method for structures containing thin wires and metal edges is much increased by using modified assigned material parameters (MAMPs). These parameters may be calculated empirically and in many cases analytically. In this contribution, the technique is extended to include the case of 90⁰ and 270⁰ corners in microstrip which may exist at an arbitrary position within the plane of the mesh. A semi-analytical method is presented and applied to the analysis of a complex patch antenna. Results are presented which show that the use of MAMPs allows a much larger cell size to be used than would be needed to achieve the same accuracy using standard FDTD.

AB - It has been recently shown that the efficiency of the finite-difference time-domain (FDTD) method for structures containing thin wires and metal edges is much increased by using modified assigned material parameters (MAMPs). These parameters may be calculated empirically and in many cases analytically. In this contribution, the technique is extended to include the case of 90⁰ and 270⁰ corners in microstrip which may exist at an arbitrary position within the plane of the mesh. A semi-analytical method is presented and applied to the analysis of a complex patch antenna. Results are presented which show that the use of MAMPs allows a much larger cell size to be used than would be needed to achieve the same accuracy using standard FDTD.

KW - finite-difference time-domain (FDTD) methods

KW - planar waveguides.

KW - planar objects

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DO - 10.1109/TAP.2007.900270

M3 - Article (Academic Journal)

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VL - 55

SP - 2124

EP - 2129

JO - IEEE Transactions on Antennas and Propagation

JF - IEEE Transactions on Antennas and Propagation

IS - 7

ER -

The treatment of singularities at 90⁰ and 270⁰ microstrip corners in FDTD by the modification of assigned material parameters

Abstract

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