Preliminary communication

Metamaterial Grounded Planar Bilayers Supporting Leaky Waves: Principles and Applications

Andrea Alu
Filiberto Bilotti
Nader Engheta
Lucio Vegni

Abstract

In this contribution, we review the analysis of metamaterial grounded planar bilayers supporting leaky-waves, which we have recently proposed elsewhere as compact sub-wavelength leaky-wave radiators, and for enhancing the wave transmission through apertures over conducting screens when used as covers. Exploiting the peculiar resonances arising when »complementary« or »conjugate« metamaterials are paired, together with the focusing properties of low-permittivity and/or low-permeability materials, it is possible to operate a sub-wavelength open waveguide consisting of a stack of grounded metamaterial bilayers in the leaky-wave regime. We recall the salient guidance and radiation properties of these anomalous natural modes, providing some physical insights into the phenomenon and speculating on the connections between these two potential applications.

Keywords

metamaterials; leaky-waves

Hrčak ID:

9149

URI

https://hrcak.srce.hr/9149

Publication date:

6.12.2006.

Article data in other languages: croatian

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