Tunable magnetron

Details Tunable magnetron Tunable magnetron

H - Electricity

01

J

353/19

H01J 25/50 (2006.01) H01J 23/20 (2006.01)

Patent

CA 1247742

ABSTRACT: "Tunable magnetron." The invention relates to a tunable magnetron, which comprises a rotatable tuning body driven by an electric motor for varying the tuning frequency of the magnetron by rotation of said body. According to the in- vention the electric motor is of a type, which can be positioned and the rotor of which is situated within the evacuated room of the magnetron and integrated with the tuning body. The invention also relates to use in such an arrangement of a special type of motor, namely a motor the stator part of which comprises a permanent magnet and a ring-shaped, inwardly open and inwardly teethed magnetic envelope for a ring-shaped coil and the rotor part of which is made of magnetic material and provided with along the circumference distributed teeth in rows situated opposite the said tooth rows on the stator part. Other motor types, which can be used, are conventional stepping motors or other types of motors which can be set in predetermined angular positions.

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