Metamaterial-based 3D Luneburg lens antenna design for microwave frequencies

A three-dimensional defocused Luneburg lens antenna is efficiently designed in this paper, using planar metamaterials for broadband operation. The new lens antenna consists of sections, acquired from the ideally discretized Luneburg sphere, each having a different refractive index and realized via s...

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Bibliographic Details
Published in2016 10th European Conference on Antennas and Propagation (EuCAP) pp. 1 - 5
Main Authors Kampouridou, Despoina C., Karamanos, Theodosios D., Dimitriadis, Alexandros I., Kantartzis, Nikolaos V.
Format Conference Proceeding
LanguageEnglish
Published European Association of Antennas and Propagation 01.04.2016
Subjects
gradient-index
lens antenna
Lenses
Luneburg lens
Metamaterials
Microwave antennas
microwaves
Refractive index
Resonant frequency
Surface waves
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Summary:A three-dimensional defocused Luneburg lens antenna is efficiently designed in this paper, using planar metamaterials for broadband operation. The new lens antenna consists of sections, acquired from the ideally discretized Luneburg sphere, each having a different refractive index and realized via suitable metamaterial resonators. Also, the simulated electric field distribution and far-field patterns, exhibiting a close agreement with the theoretical ones, indicate a very satisfactory focusing ability and a wideband operation. This promising performance of the featured design can be exploited in potential applications for radar, satellite, and point-to-point communications.
DOI:10.1109/EuCAP.2016.7481903