A transmission-line model is developed for the analysis of planar waveguides including wire-medium slabs with vertically aligned wires. The developed network formalism allows for an effective determination of the modal dispersion equation via transverse resonance, as opposed to the more cumbersome field-matching approach. Closed and open parallel-plate waveguides loaded with wire medium are considered. The suppression of undesired TEM-mode propagation and the possible achievement of a unimodal regime are investigated. Numerical results, validated also against state-of-the-art simulation software, confirm the accuracy and effectiveness of the proposed approach. Dispersion relations of complex modes are obtained for a class of leaky-wave antennas based on open wire-medium layered structures covered by partially reflecting screens.

Wire-medium loaded planar structures: A novel transmission-line model and relevant dispersion properties / Comite, Davide; Burghignoli, Paolo; Baccarelli, Paolo; Galli, Alessandro. - (2015), pp. 347-350. ((Intervento presentato al convegno 45th European Microwave Conference, EuMC 2015 tenutosi a Paris, France nel 2015 [10.1109/EuMC.2015.7345771].

Wire-medium loaded planar structures: A novel transmission-line model and relevant dispersion properties

COMITE, DAVIDE;BURGHIGNOLI, Paolo;GALLI, Alessandro
2015

Abstract

A transmission-line model is developed for the analysis of planar waveguides including wire-medium slabs with vertically aligned wires. The developed network formalism allows for an effective determination of the modal dispersion equation via transverse resonance, as opposed to the more cumbersome field-matching approach. Closed and open parallel-plate waveguides loaded with wire medium are considered. The suppression of undesired TEM-mode propagation and the possible achievement of a unimodal regime are investigated. Numerical results, validated also against state-of-the-art simulation software, confirm the accuracy and effectiveness of the proposed approach. Dispersion relations of complex modes are obtained for a class of leaky-wave antennas based on open wire-medium layered structures covered by partially reflecting screens.
9782874870392
9782874870392
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/885211
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