ARS Advances in Radio Science ARS Adv. Radio Sci. 1684-9973 Copernicus Publications Göttingen, Germany 10.5194/ars-4-17-2006 Photonic crystals as host material for a new generation of microwave components Daschner F. 1 Knöchel R. 1 Foca E. 2 Carstensen J. 2 Sergentu V. V. 3 Föll H. 2 Tiginyanu I. M. 3 Microwave Laboratory, Christian-Albrechts-University of Kiel, Kaiserstr. 2, 24143 Kiel, Germany Chair for General Materials Science, Christian-Albrechts-University of Kiel, Kaiserstr. 2, 24143 Kiel, Germany Institute of Applied Physics, Academy of Sciences of Moldova, 5 Academy str., 2028 Chisinau, Moldova 04 09 2006 4 17 19 Copyright: © 2006 F. Daschner et al. 2006 This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Generic License. To view a copy of this licence, visit https://creativecommons.org/licenses/by-nc-sa/2.5/ This article is available from https://ars.copernicus.org/articles/4/17/2006/ars-4-17-2006.html The full text article is available as a PDF file from https://ars.copernicus.org/articles/4/17/2006/ars-4-17-2006.pdf

In order to verify simulations of a concave lens based upon a photonic crystal, it was scaled and built for the application in the microwave range. Its field distribution was measured between 5.5 and 12 GHz. Due to the effective refractive index smaller than 1, focusing points were found in spite of the concave shape. The survey of the field distributions at the investigated frequencies leads to other possible applications of photonic crystals in the microwave and millimetre wave region, like beam-splitter and prism.

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