On the use of a hybrid mode mixture for lowering the thermal load peak in ceramic windows for mm-wave ECRH experiments

F. Bille

doi:10.1117/12.2298524

30 August 1993 On the use of a hybrid mode mixture for lowering the thermal load peak in ceramic windows for mm-wave ECRH experiments

F. Bille

Author Affiliations +

Proceedings Volume 2104, 18th International Conference on Infrared and Millimeter Waves; 21042K (1993) https://doi.org/10.1117/12.2298524
Event: 18th International Conference on Infrared and Millimeter Waves, 1993, Colchester, United Kingdom

Abstract

In mm-wave systems for ECRH using the HE 11 hybrid mode, the maximum transmitted power is limited bythe strongly peaked thermal load in the vacuum barrier window. In this paper we present mode converters at140 GHz which create a mixture of HE1N hybrid modes in corrugated waveguides. Such a mode mixtureyields a more uniform power density than HE11 mode in the section where the window is placed, and aGaussian distribution at the waveguide aperture.

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F. Bille "On the use of a hybrid mode mixture for lowering the thermal load peak in ceramic windows for mm-wave ECRH experiments", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21042K (30 August 1993); https://doi.org/10.1117/12.2298524

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