Circuit for mounting and stabilizing three port devices in...

Details Circuit for mounting and stabilizing three port devices in... Circuit for mounting and stabilizing three port devices in...

H - Electricity

01

P

333/77, 333/98

H01P 3/16 (2006.01) H03B 5/18 (2006.01)

Patent

CA 1287132

Abstract A waveguide for stabilizing operation of a field-effect transistor mounted in fin line at the center of a microwave oscillator circuit. The waveguide is comprised of a rectangular housing, a planar dielectric substrate extending lengthwise through the housing, and a pair of metallization layers deposited on both surfaces of the dielectric substrate, forming input and output fin lines for connection to gate and drain terminals of the transistor. A center strip of metallization extends lengthwise between the input and the output fin lines and is connected to a source terminal of the transistor. A metallic septum extends lengthwise along the center strip on both sides of the substrate and orthogonal thereto, for isolating the input and output fin lines, and thereby isolating the gate and drain terminals for stabilizing operation of the transistor. A plurality of metallic plated through holes extend between the metallization layers along the center strip on both sides of the substrate, for providing an electrical contact for the septum to both sides of the substrate.

562582

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