Magnetron having a cathode mount with a grooved recess for secur

Details Magnetron having a cathode mount with a grooved recess for secur Magnetron having a cathode mount with a grooved recess for secur

1996-02-13

1999-01-19

Lee, Benny T.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Distributed parameter resonator-type magnetron

313341, 313344, H01J 2550, H01J 2305

Patent

active

058617167

ABSTRACT:
A magnetron includes a cathode mount having a directly heated helical cathode filament for emitting thermoelectrons, an upper end shield and a lower end shield disposed so as to support the filament at upper and lower ends thereof, and center and side leads holding the upper and lower end shields respectively. The lower end shield is formed with a recess for housing the lower end of the directly heated helical cathode filament in the upper surface thereof, at least a portion of the inner wall of the recess is sloped, and a groove is formed at the peripheral edge of the bottom of the recess.

REFERENCES:
patent: 4705989 (1987-11-01), Takada et al.

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