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Proceedings Paper

Optimization of metallic bi-periodic photonic crystals application to compact directive antennas
Author(s): Nicolas Guérin; Christian Hafner; Rüdiger Vahldieck
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Paper Abstract

This paper presents a theoretical, numerical and experimental study for the design of a three-dimensional directive antenna for microwave telecommunications (KU-band: 12-18 GHz) applications. The presented structure consists of a stack of 6 metallic crossed grids above a ground plane, which is potentially capable to replace parabolic antennas, because it is much more compact than classical solutions and uses a single patch as feeding device. Such structure acts as a metallic photonic crystal at the band edge or as an ultra-refractive metamaterial. A numerical 3D code computing the diffraction by metallic bi-periodic gratings, and a fast layer-by-layer approach, allows to model and to optimize this kind of antennas. Especially, it is reported how both directivity and frequency bandwidth can be improved simultaneously. Numerical results are confirmed by experiments in an anechoic chamber.

Paper Details

Date Published: 10 October 2007
PDF: 9 pages
Proc. SPIE 6717, Optomechatronic Micro/Nano Devices and Components III, 67170M (10 October 2007); doi: 10.1117/12.754340
Show Author Affiliations
Nicolas Guérin, ETH Zürich (Switzerland)
Christian Hafner, ETH Zürich (Switzerland)
Rüdiger Vahldieck, ETH Zürich (Switzerland)


Published in SPIE Proceedings Vol. 6717:
Optomechatronic Micro/Nano Devices and Components III

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