Magnetron with continuous magnetic circuit

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, H01J 2550

Patent

active

042824630

ABSTRACT:
In a magnetron comprising a cylindrical anode, a cathode positioned coaxially in the anode, an output portion extending from the anode, an annular magnet, a yoke having a larger diameter opening extended through by the output portion, and a gasket a magnetic shim plate is provided between the permanent magnet and the yoke so that the entire surface of the permanent magnet is in magnetic contact with the yoke. A continuous magnetic circuit is thereby formed to prevent the formation of any gaps to avoid fluctuations or reduction in the magnetic flux.

REFERENCES:
patent: 3846667 (1974-11-01), Hisada et al.
patent: 3967087 (1976-06-01), Kanuma
patent: 4044279 (1977-08-01), Tsuzurahara et al.
patent: 4163175 (1979-07-01), Tashiro
patent: 4164684 (1979-08-01), Oguro
patent: 4166235 (1979-08-01), Yamashita et al.

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