Optimization of metallic bi-periodic photonic crystals application to compact directive antennas

Nicolas Guérin; Christian Hafner; Rüdiger Vahldieck

doi:10.1117/12.754340

10 October 2007 Optimization of metallic bi-periodic photonic crystals application to compact directive antennas

Nicolas Guérin, Christian Hafner, Rüdiger Vahldieck

Proceedings Volume 6717, Optomechatronic Micro/Nano Devices and Components III; 67170M (2007) https://doi.org/10.1117/12.754340
Event: International Symposium on Optomechatronic Technologies, 2007, Lausanne, Switzerland

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.

Citation Download Citation

Nicolas Guérin, Christian Hafner, and Rüdiger Vahldieck "Optimization of metallic bi-periodic photonic crystals application to compact directive antennas", Proc. SPIE 6717, Optomechatronic Micro/Nano Devices and Components III, 67170M (10 October 2007); https://doi.org/10.1117/12.754340

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