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  Performance of a remote steering antenna for ECRH/ECCD applications using 4-Wall corrugated square wave-guide

Kasparek, W., Gantenbein, G., Plaum, B., Wacker, R., Filipovic, E., Chirkov, A. V., et al. (2003). Performance of a remote steering antenna for ECRH/ECCD applications using 4-Wall corrugated square wave-guide. In G. Giruzzi (Ed.), Proceedings of the 12th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Heating (pp. 481-487). New Jersey, NJ: World Scientific Publ.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0027-2D80-D Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0027-2D86-1
Genre: Konferenzbeitrag

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Urheber

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 Urheber:
Kasparek, W.1, Autor
Gantenbein, G.1, Autor
Plaum, B.2, Autor           
Wacker, R.1, Autor
Filipovic, E.1, Autor
Chirkov, A. V.1, Autor
Denisov, G. G.1, Autor
Kuzikov, S. V.1, Autor
Ohkubo, K.1, Autor
Hollmann, F.2, Autor           
Wagner, D.3, Autor           
Affiliations:
1Institut für Plasmaforschung, Pfaffenwaldring 31, D-70569 Stuttgart, Germany; Institute of Applied Physics, Russian Academy of Sciences, 603600 Nizhny Novgorod, Russia; National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, 509-5292, Japan, ou_persistent22              
2External Organizations, ou_persistent22              
3Experimental Plasma Physics 2 (E2), Max Planck Institute for Plasma Physics, Max Planck Society, ou_1856292              

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Schlagwörter: -
 Zusammenfassung: For the upper ECW launcher on ITER, the use of a “remote steering antenna” based on the imaging properties of rectangular waveguides is planned. To characterise launchers of this type, low-power experiments on a 4-side corrugated square waveguide with a scanning mirror at the input of the waveguide were performed in the frequency range of 140 to 160 GHz. It is shown, that elliptical polarisation needed for ECCD can be transmitted without depolarisation. The usable steering range of the antenna is at least –10° < j £ +10°. Experiments with the scanning plane in the diagonal of the square waveguide led to a negligible increase the scanning range, and lobes in the upward and downward direction are detected at larger scanning angles. Mitre bends can be integrated into the waveguide without prohibitive extra loss, which is demonstrated by far-field measurements. Detailed calorimetric measurements for this set up confirm this statement for the polarisation perpendicular to the scanning plane, whereas extra loss is measured for the parallel polarisation. Results are discussed and are compared to theory.

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Sprache(n): eng - English
 Datum: 2003
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Interne Begutachtung
 Identifikatoren: eDoc: 56140
 Art des Abschluß: -

Veranstaltung

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Titel: Electron Cyclotron Emission and Electron Cyclotron Heating (EC-12)
Veranstaltungsort: Aix-en-Provence (FR)
Start-/Enddatum: 2002-05-13 - 2002-05-16

Entscheidung

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Titel: Proceedings of the 12th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Heating
Genre der Quelle: Konferenzband
 Urheber:
Giruzzi, G., Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: New Jersey, NJ : World Scientific Publ.
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: 481 - 487 Identifikator: ISBN: 981-238-189-9