High power test of a wideband diplexer with short-slotted metal half mirrors for electron cyclotron current drive system

Journal Article · Wed Feb 12 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4864613· OSTI ID:22263911

Saigusa, M.; Atsumi, K.; Yamaguchi, T.; Nagashima, K. ^[1]; Oda, Y.; Fukunari, M.; Sakamoto, K. ^[2]

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1. Ibaraki University, Hitachi, Ibaraki 316-8511 (Japan)
2. Japan Atomic Energy Agency, Naka, Ibaraki 311-0193 (Japan)

The wideband high power diplexer has been developed for combining and fast switching of high power millimeter waves generated by a dual frequency gyrotron. The actual diplexer was tested at the frequency band of 170 GHz in low power. After adjusting a resonant frequency of diplexer for the gyrotron frequency, the evacuated wideband diplexer with short-slotted metal half mirrors was tested at an incident power of about 150 kW, a pulse duration of 30 ms and a frequency band of 170.2–170.3 GHz. Any discharge damage was not observed in the diplexer.

• OSTI ID: 22263911
• Journal Information: AIP Conference Proceedings, Vol. 1580, Issue 1; Conference: 20. topical conference on radiofrequency power in plasmas, Sorrento (Italy), 25-28 Jun 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ECR CURRENT DRIVE
GHZ RANGE
METALS
PULSES