Transformation of a waveguide caustic into a Gaussian freespace caustic with the help of a quasi optical mode converter

J. Pretterebner

doi:10.1117/12.2297985

4 December 2017 Transformation of a waveguide caustic into a Gaussian freespace caustic with the help of a quasi optical mode converter

J. Pretterebner

Author Affiliations +

Proceedings Volume 1576, 16th International Conference on Infrared and Millimeter Waves; 15767K (2017) https://doi.org/10.1117/12.2297985
Event: 16th International Conference on Infrared and Millimeter Waves, 1991, Lausanne, Switzerland

Abstract

In order to get maximum power transfer from a waveguide mode into the gaussian freespace mode it is necessary to transform a rectangular part of a cylindrical caustic into the caustic of a gaussian beam. The design of a quasi optical antenna is reduced to a caustic transformation problem which can be solved by at least two mirrors. The gaussian beamwidth and the direction of the beam can be choosen as a free parameter.

Citation Download Citation

J. Pretterebner "Transformation of a waveguide caustic into a Gaussian freespace caustic with the help of a quasi optical mode converter", Proc. SPIE 1576, 16th International Conference on Infrared and Millimeter Waves, 15767K (4 December 2017); https://doi.org/10.1117/12.2297985

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