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Twin-dog-bone vs. hourglass structures in periodic arrangement: A comparative study

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3 Author(s)
Matekovits, L. ; Dipt. di Elettron., Politec. di Torino, Turino, Italy ; Esselle, K. ; Orefice, M.

Quantification of bandwidth for surface waves in a periodic Fabry-Perot cavity-like structure with one grounded plane and one loaded terminal plane is presented. The loads are twin shapes printed on the two surfaces of a dielectric layer. In particular, dog-bone and hourglass-like shapes are considered and compared. Numerical investigations demonstrate the dependency of surface-wave stop-band limits and their central frequency on a parameter that defines the exact shape of metallisation. The considered twin-hourglass structures present a larger band gap with respect to the dog-bone shape, a feature that can be exploited in wideband applications.

Published in:

Antennas & Propagation Conference, 2009. LAPC 2009. Loughborough

Date of Conference:

16-17 Nov. 2009