Abstract:
A high voltage, high current vacuum integrated circuit includes a common vacuum enclosure that includes at least two cold-cathode field emission electron tubes, and contains at least one internal vacuum pumping means, at least one exhaust tubulation, vacuum-sealed electrically-insulated feedthroughs, and internal electrical insulation. The cold-cathode field emission electron tubes are configured to operate at high voltage and high current and interconnected with each other to implement a circuit function.
Abstract:
The present disclosure involves methods and apparatus for continually replacing the adsorbed gas layer stripped from highcurrent field-emission cold cathodes by the effects of highvoltage pulsing the cathode.
Abstract:
A field emission transistor uses carbon nanotubes positioned to extend along a substrate plane rather than perpendicularly thereto. The carbon nanotubes may be pre-manufactured and applied to the substrate and then may be etched to create a gap between the carbon nanotubes and an anode through which electrons may flow by field emission. A planar gate may be positioned beneath the gap to provide a triode structure.
Abstract:
Tube amplifier system including a plurality of conductor walls extending parallel to a longitudinal axis and defining an interior space therebetween. The tube amplifier system also including a shorting deck that extends transverse to the longitudinal axis. The shorting deck is electrically coupled to the conductor walls. The tube amplifier system also includes a movable tray assembly having a grounding deck that extends parallel to the shorting deck. The grounding deck and the shorting deck define an output cavity therebetween that has a length. The movable tray assembly is removably mounted to at least one of the conductor walls such that the grounding deck is capable of being positioned at multiple different levels along the longitudinal axis to change the length of the output cavity.
Abstract:
High voltage high current regulator circuit for regulating current is interposed between first and second terminals connected to an external circuit and comprises at least one main-current carrying cold-cathode field emission electron tube conducting current between the first and second terminals. First and second grid-control cold-cathode field emission electron tubes provide control signals for first and second grids of the at least one main-current carrying cold-cathode field emission electron tube for positive and negative excursions of voltage on the first and second terminals, respectively. The current regulator circuit may be accompanied by a voltage-clamping circuit that includes at least one cold-cathode field emission electron tube. At least two cold- cathode field emission electron tubes, configured to operate at high voltage and high current, are preferably contained within a single vacuum enclosure and are interconnected to provide a circuit function, so as to form a high voltage high current vacuum integrated circuit.