Magnetron having an internal capacitor for suppressing leakage o

Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Distributed parameter resonator-type magnetron

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315 3953, 315 3975, 315 85, H01J 2550

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active

043000720

ABSTRACT:
A magnetron is provided with an anode cylinder having a number of resonance cavities defined in the anode cylinder and a cathode disposed along the axis of the anode cylinder. The anode cylinder is hermetically sealed by cover plates. An antenna section electrically connected to the resonance cavities is mounted on one of the cover plates, and a cylindrical envelope of a cathode stem is mounted on the other cover plate. Within the cylindrical envelope are disposed a rod holder electrically connected to one end of the cathode and a cylindrical holder connected to the other end of the cathode, the rod holder extending through the cylindrical holder, and the cathode is supported by both the holders. Within the cylindrical envelope is further disposed a dielectric cylinder, through which the cylindrical holder extends. The dielectric cylinder is provided with an outer electrical conductive metal layer formed on its outer surface and extending from one end of its and also with an inner electrical conductive metal layer formed on its inner surface and extending from the other end of it, these inner and outer metal layers partly opposing each other. The outer metal layer is electrically connected to the cathode, and the inner metal layer is electrically connected to the anode cylinder.

REFERENCES:
patent: 3543082 (1979-11-01), Boehm
patent: 3551735 (1970-12-01), Staats
patent: 3588589 (1971-06-01), Vonk
patent: 3846667 (1974-11-01), Hisada et al.
patent: 4131824 (1978-12-01), Nakai et al.
patent: 4156829 (1979-05-01), Harada
patent: 4163175 (1979-07-01), Tashiro
patent: 4223245 (1980-09-01), Ogura et al.

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