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Author(s):
K. Ohkubo, S. Kubo, H. Idei, T. Shimozuma, Y. Yoshimura, F. Leuterer, M. Sato and Y. Takita
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Title:
Analysis of Oversized Sliding Waveguide by Mode Matching and Multi-Mode Network Theory
Date of publication:
Dec. 2000
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Key words:
mode-matching method, multi-mode network theory, sliding waveguide, corrugated waveguide, coupling, transmission line, electron cyclotron heating
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Abstract:
Transmission and reflection coefficients of HE_11 hybrid modes in the sliding waveguide are discussed on the basis of mode matching method and multi-mode network theory. The sliding waveguide is composed of the corrugated waveguide with 88.9 mm phi and the smooth-wall waveguide with 110 mm phi in inner diameter. It is confirmed that the decrease in power of < 0.2% at 84 GH_Z is obtained for 2 cm in gap of the sliding waveguide. At the sliding length near multi-half-wavelength in vacuum, transmission and reflection powers in the sliding waveguide change slightly, because the very small amount of standing wave of higher-order TE or TM modes is produced resonantly.
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