Experimental Study of Oversized Backward Wave Oscillator with Coaxial Slow-Wave Structure
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概要
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Studies of coaxial oversized backward wave oscillators (BWOs) are reported. The beam voltage is weakly relativistic (less than 100 kV). The slow-wave structure consists of a periodically corrugated oversized waveguide and periodically corrugated inner conductor, whose target operating frequency due to Cherenkov interaction is in the K-band. A starting energy exists for the coaxial oversized BWO as it does for a hollow oversized BWO. The coaxial slow-wave structure has two surface wave modes caused by the inner and outer corrugations. Operation based on these surface modes can be controlled by the beam diameter. The phase difference between the inner and outer corrugations has little effect on operation of the oversized BWO.
著者
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Ogura Kazuo
Graduate School Of Science And Technology Niigata University
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Sugawara Akira
Graduate School Of Science And Technology Niigata University
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Iizuka Hiroshi
Graduate School Of Science And Technology Yamagata University
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Bansho Kiyoshi
Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
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YOSHIMURA Hiroyuki
Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
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Takahashi Masatoh
Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
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