Oscillators – Solid state active element oscillator – Significant distributed parameter resonator
Reexamination Certificate
2005-09-27
2005-09-27
Lam, Tuan T. (Department: 2816)
Oscillators
Solid state active element oscillator
Significant distributed parameter resonator
C331S10800D, C331S1170FE
Reexamination Certificate
active
06949982
ABSTRACT:
A voltage controlled oscillator incorporating voltage tunable capactiors, comprising at least one resonator coupled into a base circuit of a bipolar transistor, said at least one resonator including at least one voltage tunable capacitor. The bipolar transistor includes a collector which terminates in a radial micro strip stub and an emitter which produces an output via an impedance matching circuit. Also, included is an integral switch mode power supply providing power to said base circuit via a first power supply filter, and to a controller via a second power supply filter. The controller scales the user-selected control voltage range to the levels required by said voltage tunable capacitors associated with said at leat one resonator.
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PCT International Search Report for International Application No. PCT/US04/06625 dated Mar. 2, 2005.
Finn James S.
Lam Tuan T.
Paratek Microwave Inc.
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