Coaxial triode apparatus

Details Coaxial triode apparatus Coaxial triode apparatus

1992-01-28

1993-12-21

O'Shea, Sandra L.

Electric lamp and discharge devices

Discharging devices with apertured electrode interposed...

Plural interposed apertured electrodes

313306, 313308, H01J 146

Patent

active

052724115

ABSTRACT:
A triode having a coaxially positioned cathode and grid or gate electrode positioned within an evacuated tubular anode. The cathode has a plurality of emitting points radially disposed on its outer surface. The emitting points are surrounded by a plurality of grid or gate electrodes controlling the conducted beam current between the inner cathode and the surrounding anode. The gain and power of the triode is only limited by the number of emitter points and the number of grid or gate electrodes positioned within the anode. Since the anode envelopes the cathode and grid electrode, the anode can be used as a waveguide or antenna launch without the need of RF coupling connectors.

REFERENCES:
patent: 4956574 (1990-09-01), Kane
patent: 5144191 (1992-09-01), Jones et al.

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