Analytical equivalent models of artificial dielectric layers with arbitrary inter-layer shifts

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Abstract

Closed-form expressions to describe artificial dielectric layers (ADLs) are presented. The propagation of a generic plane wave within the artificial material is described by means of transmission line models, where each layer is represented as an equivalent shunt impedance. The given analytical formulas for the shunt impedance account for the reactive coupling between the layers due to higher order Floquet modes, thus remain valid even for extremely small electrical distance between layers. The expressions are derived assuming finite conductivity of the metal, thus also an accurate estimation of the losses within the artificial dielectric is obtained from the equivalent circuit.
Original languageEnglish
Title of host publication12th European Conference on Antennas and Propagation, EuCAP 2018
Place of PublicationLondon, UK
PublisherInstitution of Engineering and Technology
Number of pages5
ISBN (Electronic)978-1-78561-816-1
ISBN (Print)978-1-78561-815-4
Publication statusPublished - 2018
EventEuCAP 2018: 12th European Conference on Antennas and Propagation - London, United Kingdom
Duration: 9 Apr 201813 Apr 2018
Conference number: 12

Conference

ConferenceEuCAP 2018
CountryUnited Kingdom
CityLondon
Period9/04/1813/04/18

Keywords

  • Artificial dielectric layers
  • closed-form solutions
  • equivalent circuit

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