Errors in the shielding effectiveness of cavities due to stair-cased meshing in FDTD: Application of empirical correction factors

S. A. Bourke; J. F. Dawson; I. D. Flintoft; M. P. Robinson

doi:10.1109/EMCEurope.2017.8094791

Errors in the shielding effectiveness of cavities due to stair-cased meshing in FDTD: Application of empirical correction factors

S. A. Bourke, J. F. Dawson, I. D. Flintoft, M. P. Robinson

Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The errors, due to stair-cased meshing, in the Shielding Effectiveness (SE) of cavities modelled with thin boundaries, in the Finite-Difference Time-Domain (FDTD) method, are examined. The errors in SE are found to be associated with the
error in the surface area of the cavity caused by the use of a stair-cased mesh. An empirical solution is demonstrated, which improves the stair-cased model accuracy to be comparable to that achievable by a conformal model. Errors in the resonant
frequencies ,Q factors and field minima of a cavity, due to the stair-cased mesh, are also noted.

Original language	Undefined/Unknown
Title of host publication	2017 International Symposium on Electromagnetic Compatibility - EMC EUROPE
Place of Publication	Angers
DOIs	https://doi.org/10.1109/EMCEurope.2017.8094791
Publication status	Published - 4 Sept 2017
Event	EMC Europe 2017 - Angers, France Duration: 4 Sept 2017 → 8 Sept 2017 http://emceurope2017.org/

Conference

Conference	EMC Europe 2017
Country/Territory	France
City	Angers
Period	4/09/17 → 8/09/17
Internet address	http://emceurope2017.org/

Bibliographical note

© 2017 IEEE. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

Keywords

FDTD
Electromagnetic shielding

Access to Document

10.1109/EMCEurope.2017.8094791

Bourke2017_postprint
© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Accepted author manuscript, 1.81 MBLicence: Other

1 Finished
2 Active

Electromagnetic shielding properties of Materials, and Enclosures
DAWSON, J. F. (Principal investigator), Marvin, A. (Principal investigator), FLINTOFT, I. D. (Principal investigator), DAWSON, L. (Principal investigator), Porter, S. J. (Principal investigator), Robinson, M. P. (Principal investigator) & YAN, J. (Student)
1/01/90 → …
Project: Other project › Miscellaneous project
CEM: Computational Electromagnetic Modelling
DAWSON, J. F. (Principal investigator), PORTER, S. J. (Principal investigator), ROBINSON, M. P. (Principal investigator), Marvin, A. (Principal investigator), FLINTOFT, I. D. (Co-investigator), DAWSON, L. (Co-investigator) & CLEGG, J. (Co-investigator)
1/01/88 → …
Project: Other project › Miscellaneous project
Computational electromagnetics for advanced materials and biomedical applications (EPSRC studentship)
Dawson, J. F. (Principal investigator), Robinson, M. P. (Principal investigator) & BOURKE, S. (Student)
1/10/15 → 1/10/18
Project: Other project › Miscellaneous project

Cite this

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title = "Errors in the shielding effectiveness of cavities due to stair-cased meshing in FDTD: Application of empirical correction factors",

abstract = "The errors, due to stair-cased meshing, in the Shielding Effectiveness (SE) of cavities modelled with thin boundaries, in the Finite-Difference Time-Domain (FDTD) method, are examined. The errors in SE are found to be associated with theerror in the surface area of the cavity caused by the use of a stair-cased mesh. An empirical solution is demonstrated, which improves the stair-cased model accuracy to be comparable to that achievable by a conformal model. Errors in the resonantfrequencies ,Q factors and field minima of a cavity, due to the stair-cased mesh, are also noted.",

keywords = "FDTD, Electromagnetic shielding",

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AU - Robinson, M. P.

N1 - © 2017 IEEE. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

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N2 - The errors, due to stair-cased meshing, in the Shielding Effectiveness (SE) of cavities modelled with thin boundaries, in the Finite-Difference Time-Domain (FDTD) method, are examined. The errors in SE are found to be associated with theerror in the surface area of the cavity caused by the use of a stair-cased mesh. An empirical solution is demonstrated, which improves the stair-cased model accuracy to be comparable to that achievable by a conformal model. Errors in the resonantfrequencies ,Q factors and field minima of a cavity, due to the stair-cased mesh, are also noted.

AB - The errors, due to stair-cased meshing, in the Shielding Effectiveness (SE) of cavities modelled with thin boundaries, in the Finite-Difference Time-Domain (FDTD) method, are examined. The errors in SE are found to be associated with theerror in the surface area of the cavity caused by the use of a stair-cased mesh. An empirical solution is demonstrated, which improves the stair-cased model accuracy to be comparable to that achievable by a conformal model. Errors in the resonantfrequencies ,Q factors and field minima of a cavity, due to the stair-cased mesh, are also noted.

KW - FDTD

KW - Electromagnetic shielding

U2 - 10.1109/EMCEurope.2017.8094791

DO - 10.1109/EMCEurope.2017.8094791

M3 - Conference contribution

BT - 2017 International Symposium on Electromagnetic Compatibility - EMC EUROPE

CY - Angers

T2 - EMC Europe 2017

Y2 - 4 September 2017 through 8 September 2017

ER -

Errors in the shielding effectiveness of cavities due to stair-cased meshing in FDTD: Application of empirical correction factors

Abstract

Conference

Bibliographical note

Keywords

Access to Document

Projects

Electromagnetic shielding properties of Materials, and Enclosures

CEM: Computational Electromagnetic Modelling

Computational electromagnetics for advanced materials and biomedical applications (EPSRC studentship)

Cite this