Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Utilizing three or more electrode solid-state device
Reexamination Certificate
2005-12-06
2008-05-06
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Utilizing three or more electrode solid-state device
C333S103000, C333S104000
Reexamination Certificate
active
07368971
ABSTRACT:
High power, high frequency switches include a transmission line having at least three portions that are serially coupled between an input port and an output port to define at least two nodes and to carry a high power, high frequency signal between the input port and the output port. First and second power transistors are provided. At least a third power transistor also is provided. The controlling electrode(s) (gate) of the first, second and/or third power transistor(s) are responsive to a switch control input. The controlled electrodes (source/drain) of a respective one of the first and second power transistors, and of a respective one of the third power transistor(s) are serially coupled between a respective one of the at least two nodes and a reference voltage. The power transistors may be silicon carbide MESFETs.
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Cree Inc.
Le Dinh T.
Myers Bigel Sibley & Sajovec P.A.
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