Magnetron

Details Magnetron Magnetron

1986-04-28

1988-01-19

Boudreau, Leo H.

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Distributed parameter resonator-type magnetron

315 3951, 315 3975, H01J 2322

Patent

active

047206594

ABSTRACT:
In an interaction space (7) defined between a cathode (2) and forward ends of vanes (3), an even direct-current magnetic field is applied by magnets (8) along the axial direction of the cathode (2). Direct-current or low-frequency high voltage is applied between the cathode (2) and the respective vanes (3). Spaces (6) surrounded by respective two adjacent vanes (3) and the inner wall of the anode cylinder (4) define cavity resonators, which generate high-frequency electric fields concentrated to the forward end portions of the respective vanes (3) and partially leaking in the interaction space (7). Under such conditions, an electron group emitted from the cathode (2) rotates about the cathode (2) in the interaction space, whereby interaction takes place between the electron group and the high-frequency electric fields to oscillate microwaves. At this time, undesired higher harmonics generated with the microwaves of basic frequency are suppressed by arranging inner strap rings (5a) in positions separated from the forward ends of the vanes (3) to exceed a prescribed interval.

REFERENCES:
patent: 3176188 (1965-03-01), Wilbur
patent: 4300072 (1981-11-01), Tashiro

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