Low-torque magnetron tuning device

Details Low-torque magnetron tuning device Low-torque magnetron tuning device

1993-07-30

1995-09-12

Lee, Benny T.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Distributed parameter resonator-type magnetron

331 90, H01J 23213, H01J 2550

Patent

active

054499720

ABSTRACT:
A low-torque tuning apparatus is provided for use in a magnetron having an electron emitting cathode coaxially disposed within an anode cavity. The tuning apparatus includes a tuner drive capable of reciprocating axial movement relative to the magnetron. The tuner drive has a plate forming a portion of the cavity such that periodic changes in position of the plate by movement of the tuner drive alter a resonant characteristic of the cavity. Axial movement of the tuner drive is guided by a diaphragm at a first portion of the tuner drive and a double bellows at a second portion of the tuner drive. The diaphragm and double bellows have a first spring bias which permits the axial movement while precluding radial movement of the tuner drive and tends to return the tuner drive to a generally null position relative to the magnetron. The double bellows further provides a vacuum seal between the cavity and an atmosphere external to the magnetron. The tuner drive is linked by a leaf spring to an external driving force which inducing the reciprocating axial movement into said tuner drive. The leaf spring has a second spring bias. A total amount of torque required by the external driving force to move the plate is substantially reduced by cancellation of the first and second spring biases over a majority of range of motion of the tuner drive.

REFERENCES:
patent: 3187220 (1965-06-01), Dench
patent: 3441794 (1969-04-01), Chun
patent: 3441795 (1969-04-01), Hynes et al.
patent: 3876903 (1975-04-01), Landau
patent: 4234855 (1980-11-01), Busacca et al.
patent: 4247828 (1981-01-01), Busacca et al.
patent: 4313091 (1982-01-01), Busacca et al.
patent: 4527094 (1985-07-01), Gerard et al.
patent: 4531104 (1985-07-01), Schaeffer
Microwave Tubes by A. S. Gilmour, Jr. (Artech House, 1986), Chapter 13.2.7, "Magnetron Tuning".

Affiliated with

Also associated with

Rating

Low-torque magnetron tuning device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low-torque magnetron tuning device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-torque magnetron tuning device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-407579