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Conference paper

Floquet-Bloch vs. Nicolson-Ross-Weir Extraction for Magneto-Dielectric Bragg Stacks

In Proceedings of 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (metamaterials 2014) — 2014, pp. 85-87

By Clausen, Niels Christian Jerichau1,2; Arslanagic, Samel1,2; Breinbjerg, Olav1,2

From

Department of Electrical Engineering, Technical University of Denmark1

Electromagnetic Systems, Department of Electrical Engineering, Technical University of Denmark2

We extract and compare the permittivity and permeability from a dielectric and a magnetodielectric Bragg stack with the Floquet-Bloch (FB) method for the infinite stack and the Nicolson-Ross- Weir (NRW) method for the finite stack. While the extracted propagation constants are identical, the wave impedances are different.

Moreover, the NRWmethod yields magnetic effects for the dielectric Bragg stack, while the FB method gives the expected vacuum permeability, also in the bandgab.

Language: English
Publisher: IEEE
Year: 2014
Pages: 85-87
Proceedings: 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics
ISBN: 1479932566 , 147993450X , 147993450x , 1479934526 , 9781479932566 , 9781479934508 and 9781479934522
Types: Conference paper
DOI: 10.1109/MetaMaterials.2014.6948603
ORCIDs: Arslanagic, Samel and Breinbjerg, Olav
Keywords

Bragg gratings Dielectrics Floquet-Bloch method Impedance Metamaterials NRW method Nicolson-Ross-Weir method Permeability Propagation constant bandgap magnetic permeability magneto-dielectric Bragg stacks magneto-optical effects permeability permittivity propagation constants vacuum permeability wave impedances

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