Back to results
US 10,491,174 B1Granted
Multi-beam power grid tube for high power and high frequency operation
AssigneeCalabazas Creek Research, Inc.
InventorR. Lawrence Ives
Life of this patent
Estimating the term…
Abstract
A multi-beam triode for RF amplification has plurality of electron beams generated by a thermionic cathode, each electron beam travelling through an associated grid and to a common anode electrode. An input RF energy is coupled to a grid support which is electrically common to a control grid of each electron beam, and RF is coupled out of the grid—anode gap, with suitable input RF matching cavities and output RF matching cavities provided.
Claims20
A gridded electron tube comprising:
- a plurality of electrically common thermionic cathodes, each said cathode having an emission surface and emitting electrons travelling in trajectories perpendicular to the emission surface;
- a plurality of control grids supported by a grid support having apertures for said control grids, one said control grid placed in an associated grid support aperture for each associated thermionic cathode;
- an anode electrode on an opposite surface of said control grid from said cathodes;
- an RF input source coupled to the control grids;
- an RF output coupled to the anode electrode.
2 more elements
A triode amplifier comprising:
- a thermionic cathode having a plurality of electron emission surfaces and emitting electrons with a substantially uniform electron beam trajectory;
- a multi-beam grid support having a plurality of apertures, each aperture substantially aligned over each of said plurality of electron emission surfaces, each said aperture of said grid support having an associated control grid;
- an anode positioned on the opposite surface of said grid support from said thermionic cathode;
- a first coaxial cavity for input radio frequency (RF) energy, said first coaxial cavity coupled to said grid support and to each of said control grids;
- a second coaxial cavity coupled to said anode, said coaxial cavity including an output port for RF amplified by said triode amplifier.
2 more elements
A gridded electron tube comprising:
- a plurality of electrically common thermionic cathodes, each said cathode having an emission surface and emitting electrons with trajectories substantially perpendicular to the cathode;
- a plurality of control grids supported by a grid support having apertures for said control grids, one said control grid placed in an associated grid support aperture for each associated thermionic cathode;
- an anode electrode on an opposite surface of said control grid from said cathodes;
- at least one screen grid positioned between said control grid support and said anode and coupled to a terminal;
- the control grids having an electrical connection for an RF input source;
- the at least one screen grid having an electrical connection;
- the anode electrode having an electrical connection for an RF output.
4 more elements
Dependencies are inferred from the claim text.