Multilayer field emission klystron
AssigneeMotorola, Inc.
InventorsScott V. Johnson, Bernard F. Coll, Kenneth A. Dean
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Abstract
An exemplary system and method for providing a multi-layer klystron-type electron beam device for the generation and amplification of millimeter-wave electromagnetic radiation is disclosed as comprising inter alia: a cathode layer (130); a collector layer (100); an extraction layer (120); a control layer (140); an input cavity (150); an output cavity (170); several ceramic spacer layers(103, 105, 107) dispose intermediately between the cathode (130) and the collector (100); and optionally, several magnetic ceramic layers (160, 165) for beam forming and focusing. After the klystron's layers are assembled, the device may be fired to form a substantially monolithic structure.
Claims20
A multilayer field emission klystron, comprising:
- a cathode layer, said cathode layer having a surface suitably adapted for emitting electrons;
- a collector layer, said collector layer disposed away from said cathode layer, said collector layer suitably adapted to collect electrons emitted from said cathode layer;
- an extraction layer, said extraction layer disposed substantially between said cathode layer and said collector layer, said extraction layer suitably adapted for drawing electrons away from said cathode layer;
- a control layer, said control layer disposed substantially between said extraction layer and said collector layer, said control layer suitably adapted to shape an electron beam formed by said electrons drawn away from said cathode layer toward said collector layer;
- an input cavity, said input cavity disposed substantially between said control layer and said collector layer, said input cavity suitably adapted for modulating the velocity of said electron beam;
- an output cavity, said output cavity disposed substantially between said input cavity and said collector layer, said output cavity suitably adapted for extracting energy from said electron beam;
- and
- spacer material, said spacer material forming at least a plurality of spacing layers intermediately disposed between said cathode layer and said collector layer.
Dependencies are inferred from the claim text.