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

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Publication details

Title of host publication2017 International Symposium on Electromagnetic Compatibility - EMC EUROPE
DateAccepted/In press - 17 Apr 2017
DatePublished (current) - 4 Sep 2017
Place of PublicationAngers
Original languageUndefined/Unknown


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.

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© 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

    Research areas

  • FDTD, Electromagnetic shielding

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