NDLI: Diplexers for Power Combination and Switching in High Power ECRH Systems

Content Provider	IEEE Xplore Digital Library
Author	Bruschi, A. Erckmann, V. Kasparek, W. Petelin, M.I. Thumm, M. Bin, W. Cirant, S. D'Arcangelo, O. Hollmann, F. Lubyako, L. Noke, F. Plaum, B. Purps, F. Zohm, H.
Copyright Year	1973
Abstract	Electron Cyclotron Resonance Heating (ECRH) systems for next step large fusion-devices operate at a Continuous Wave (CW) power well beyond 10 MW generated by a large number of gyrotrons with typically 1 MW power per unit. The combination of the power of two (or more) gyrotrons and switching of the power between different launchers for different physics applications is an attractive feature for such systems. The combination of beams from different gyrotrons would reduce the number of transmission lines and the requirements on port space. Fast switching between two antennas synchronously with the Magneto-Hydro Dynamic (MHD) modes frequency would increase the efficiency of mode stabilization. Both combination and switching as well as power sharing between different ports can be performed with high-power four-port diplexers using small frequency differences or small frequency-shift keying of the gyrotrons, respectively. Fast directional switches (FADIS) and beam combiners (BC) can be designed on the basis of different physical mechanisms: some selected design variants were investigated and the results are presented. Considerations on the integration of FADIS/BC's into large ECRH systems and their use in test arrangements are presented.
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	1427
Ending Page	1438
Page Count	12
File Size	1272975
File Format	PDF
ISSN	00933813
Volume Number	38
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gyrotrons Frequency Electrons Cyclotrons Resonance Cogeneration Fusion power generation Power generation Physics Power transmission lines resonators Diplexers millimeter wave switches plasma control plasma heating power combiners
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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