Experimental and numerical investigations of oscillations in extracted material parameters for finite Bragg stacks using the NRW method

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

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A 1D dielectric finite Bragg stack situated in a rectangular waveguide and illuminated by the fundamental TE10 mode is examined analytically, numerically, and experimentally. Calculated as well as measured scattering parameters are used to extract the effective/equivalent material parameters for three specific configurations of its constituent unit cell. Particular attention is devoted to the absence/presence of certain oscillations in the extracted material parameters, depending on the unit cell configuration. The results for the finite Bragg stack are further verified to agree with those of an infinite Bragg stack, for which the dispersion equation is used in conjunction with the Floquet-Bloch harmonics expansion to extract the material parameters. It is shown that the extracted material parameters for the finite and infinite Bragg stacks agree for the symmetric unit cell configuration.
Original languageEnglish
Title of host publication2012 6th European Conference on Antennas and Propagation
PublisherIEEE
Publication date2012
Pages2872 - 2875
ISBN (print)978-1-4577-0918-0
ISBN (electronic)978-1-4577-0919-7
DOIs
StatePublished

Conference

Conference2012 6th European Conference on Antennas and Propagation
CountryCzech Republic
CityPrague
Period26/03/1230/03/12
CitationsWeb of Science® Times Cited: No match on DOI

Keywords

  • Dielectrics, Equations, Layout , Materials, Oscillators, Permittivity , Scattering parameters
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