Ahstract - A novel millimeter-wave design of a Fabry-Perot cavity leaky-wave antenna (LWA) is proposed here as a promising alternative to conventional configurations for improving the directivity at broadside of radiating elements. In order to prove our original idea, the radiation features of i) a substrate-superstrate LWA, ii) a grounded dielectric slab with a single homogenized metasurface above it, and iii) this novel layout, consisting of a substrate-superstrate LWA with interleaved metasurfaces, are evaluated through rigorous analytical methods and validated with reliable numerical techniques. It is seen that the presence of the two metasurfaces significantly improves the directivity of the conventional substrate-superstrate LWA and also leads to a quite higher directivity than the LWA with a single metasurface on top.

Substrate-Superstrate Leaky-Wave Antenna with Interleaved Metasurfaces for Directivity Improvement

Tofani S.
Primo
;
Fuscaldo W.
Secondo
;
2019

Abstract

Ahstract - A novel millimeter-wave design of a Fabry-Perot cavity leaky-wave antenna (LWA) is proposed here as a promising alternative to conventional configurations for improving the directivity at broadside of radiating elements. In order to prove our original idea, the radiation features of i) a substrate-superstrate LWA, ii) a grounded dielectric slab with a single homogenized metasurface above it, and iii) this novel layout, consisting of a substrate-superstrate LWA with interleaved metasurfaces, are evaluated through rigorous analytical methods and validated with reliable numerical techniques. It is seen that the presence of the two metasurfaces significantly improves the directivity of the conventional substrate-superstrate LWA and also leads to a quite higher directivity than the LWA with a single metasurface on top.
2019
Istituto per la Microelettronica e Microsistemi - IMM - Sede Secondaria Roma
antenna theory
Electromagnetic theory
frequency selective surfaces
leaky wave antennas
millimeter-wave technology
radiation patterns
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/523741
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