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The PMC-Amended DB Boundary - A Canonical EBG Surface

Per-Simon Kildal (Institutionen för signaler och system, Antenner) ; A. Kishk ; M. Bosiljevac ; Z. Sipus
Applied Computational Electromagnetics Society Journal (1054-4887). Vol. 26 (2011), 2, p. 96-108.
[Artikel, refereegranskad vetenskaplig]

Replacing realistic materials and structures by their ideal counterparts, canonical surfaces, is of great interest for initial and conceptual electromagnetic (EM) studies. The recently introduced DB boundary is defined by a set of simple boundary conditions forcing the normal components of the D- and B- fields to be zero at the boundary. We show that this DB boundary produces many 2-D scattering results that are similar to how practical so-called electromagnetic bandgap (EBG) surfaces behave within the bandgap. Still, it is not directly useable as a canonical EBG surface, because, as we demonstrate in this paper, it is incomplete, creating an anomaly for normal incidence which causes unphysical field solution for 3-D field problems. We have removed this anomaly by introducing the PMC-amended DB boundary. This works in the same way as a practically realized EBG surface for both 2-D and 3-D problems within the bandgap, and is therefore a canonical EBG surface.

Nyckelord: DB boundary, EBG surfaces, mushroom surface, artificial magnetic conductors, hard surfaces, soft



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Denna post skapades 2011-08-09. Senast ändrad 2013-10-15.
CPL Pubid: 143894

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Antenner (2005-2014)

Ämnesområden

Informations- och kommunikationsteknik
Elektroteknik och elektronik

Chalmers infrastruktur