Magnetron with tuning member moveable by passing current through

Details Magnetron with tuning member moveable by passing current through Magnetron with tuning member moveable by passing current through

1988-01-21

1989-05-16

Grimm, Siegfried H.

Oscillators

With magnetically controlled space discharge device

With frequency adjustment

315 3961, H01J 23213

Patent

active

048313416

ABSTRACT:
A magnetron includes a cathode and vane type anode structure. The frequency of oscillation of a microwave output signal of the magnetron is tunable by means of a tuning member, which is in the form of an annular plate arranged adjacent resonant cavities of the magnetron. The frequency of oscillation is determined by the position of the tuning member relative to the resonant cavities. When it is wished to tune the magnetron output frequency a current is passed along a path defined by the tuning member. This causes axial forces to be exerted on the tuning member so that it moves. Since the current is arranged to pass through the tuning member itself, the device is particularly simple, no actuating mechanisms or drive coils, for example, being necessary.

REFERENCES:
patent: 2462137 (1949-02-01), Smith
patent: 2462869 (1949-03-01), Kather
patent: 4331935 (1982-05-01), Thornber

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