Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Distributed parameter resonator-type magnetron
Patent
1987-10-29
1992-01-28
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
Combined load device or load device temperature modifying...
Distributed parameter resonator-type magnetron
315 3975, 315 3977, H01J 2348
Patent
active
050846515
ABSTRACT:
A microwave tube similar in structure to a magnetron includes an output port and a separate input port. The tube includes a cathode, a reentrant anode circuit and means for producing crossed electric and magnetic fields in an interaction space between the cathode and the anode circuit. The microwave tube can be used as an injection-locked or injection-primed oscillator or as an amplifier. An input signal coupling network substantially blocks transfer of internally-generated RF energy at the operating frequency in a reverse direction through the input port toward the input signal source. The input coupling network includes an anode loop coupled between two points of equal phase and magnitude in the standing wave which exists on the anode circuit, and an input loop positioned for inductive coupling of the input signal to the anode loop. The input signal can be coupled to the input loop with a coaxial transmission line, a ridge waveguide or a twin-wire transmission line. The microwave tube can utilize conventional vane type or bar type anode circuits or can utilize mixed line anode circuits having both forward wave and backward wave sections.
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Ham Seung
LaRoche Eugene R.
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