Analysis of a TE@@d22,6@ 118-GHz Quasi-Optical Mode Converter

A quasi-optical mode converter for the European TE@@d22,6@ 118-GHz gyrotron has been continuously improved for long pulse operation. Measurements at the last generation show a double peak structure at the output window plane, but simulations have not been able to explain this behavior in the past. T...

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Bibliographic Details
Published inIEEE transactions on microwave theory and techniques Vol. 55; no. 8; pp. 1697 - 1703
Main Authors Prinz, H O, Arnold, A, Dammertz, G, Thumm, M
Format Journal Article
LanguageEnglish
Published 01.08.2007
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Summary:A quasi-optical mode converter for the European TE@@d22,6@ 118-GHz gyrotron has been continuously improved for long pulse operation. Measurements at the last generation show a double peak structure at the output window plane, but simulations have not been able to explain this behavior in the past. The overall output system was analyzed carefully. Besides measurements, the first full 3D electromagnetic analysis of a complete quasi-optical mode converter was performed. This gives the indication of the double-peak structure at the output window plane. An enhancement of the system for a single-peak Gaussian-like output beam will be presented.
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ISSN:0018-9480
DOI:10.1109/TMTT.2007.902779