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5. 发明专利

JPS51126031A HIGH FREQUENCY DEVICE 失效
公开(公告)号：JPS51126031A
公开(公告)日：1976-11-02
申请号：JP4997875
申请日：1975-04-24
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： SHIMADA TAKASHI , OOYA KEIJI
IPC分类号： H01P1/08 , H01J23/14 , H01J23/40 , H05H7/16 , H05H9/00
摘要： PURPOSE:To obtain a high frequency device that is reliable and with long-life and establish screen board within the input wave guide.

6. 发明专利

JPS51120168A METHOD OF COOLING ELECTRON TUBES 失效
公开(公告)号：JPS51120168A
公开(公告)日：1976-10-21
申请号：JP4419275
申请日：1975-04-14
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： SHIMADA TAKASHI , OOYA KEIJI
IPC分类号： H01J7/26 , H01J7/24
摘要： PURPOSE:To secure a method by which the cooling capacity of a collector can be increased with a comparatively small equipment.

9. 发明专利

JPS5818836A RECTILINEAR PROPAGATION TYPE KLYSTRON 失效
公开(公告)号：JPS5818836A
公开(公告)日：1983-02-03
申请号：JP11607481
申请日：1981-07-24
申请人： TOKYO SHIBAURA ELECTRIC CO
发明人： OOYA KEIJI
IPC分类号： H01J23/20 , H01J23/16 , H01J25/10
摘要： PURPOSE:To obtain a rectilinear propagation type klystron with high efficiency and and gain with whose full length is reduced exceedingly by properly arranging cavities of fundamental wave and higher harmonics and properly selecting their resonance frequency. CONSTITUTION:To obtain high efficiency, the electron beam entering an output cavity 21 must be collected well and be provided with a uniform speed as much as possible. In this invention, since the fourth and fifth cavities, that is, the two cavities 24 and 25 just in the lower course from the second higher harmonics cavity 23 are tuned to the higher frequency than the klystron operation frequency f0, they function so as to collect the electron beam more intensely. Thus the efficiency factor F1=I1/I0 in the drift tube spacing center 26a of an output cavity 26 attains a high value exceeding 1.7. Besides, since the resonance frequency of a fundamental wave cavity on the upstream side of second higher harmonics cavity 23 is slightly higher than the center operation frequency, beam collection can be performed efficiently and high gain be attained.

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