Experiment on the Focusing of High power Millimeter-Wave Beam(Physics, Process, Instrument & Measurement)
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概要
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Focusing of millimeter-wave radiation from a high power 60GHz gyrotron is studied using a Vlasov-Nakajima type quasi-optical antenna system. Fine focusing in the E-plane of the wave with an elliptic reflector gives a sheet beam of 10mm (FWHM) in thickness even at a high power input of about 100kW. Addition of a parabolic reflector brings a focused beam of about 10mm in diameter in FWHM and an energy beam wit a density higher than 100kW/cm^2 is obtained. The beam power distribution after reflection from the elliptic mirror is compared with calculated one and a good agreement is obtained.
- 大阪大学の論文
著者
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MIYAKE Shoji
Osaka University
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WADA Osami
Okayama University
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Nakajima Masamitsu
Kyoto Universtiy
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ARATA Yoshiaki
Kinki University
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Wada Osami
Okayam University
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