Voltage-controlled oscillator using LC resonator

Details Voltage-controlled oscillator using LC resonator Voltage-controlled oscillator using LC resonator

2005-08-26

2009-10-27

Kinkead, Arnold (Department: 2817)

Oscillators

L-c type oscillators

C331S1170FE, C331S1170FE, C331S17700V

Reexamination Certificate

active

07609120

ABSTRACT:
Provided is a voltage-controlled oscillator (VCO) using an LC resonator circuit which includes a first resonance circuit in which two serially connected varactor diodes and an inductor are connected in parallel, a second resonance circuit in which one or more inductor L1and one or more capacitor C1are connected in parallel, the second resonance circuit being serially connected to a port of the first resonance circuit, and a third resonance circuit in which one or more inductor L2and one or more capacitor C2are connected in parallel, the third resonance circuit being serially connected to the other port of the first resonance circuit.

REFERENCES:
patent: 6204734 (2001-03-01), Zhang et al.
patent: 07-176952 (1995-07-01), None
patent: 2002-208819 (2002-07-01), None
patent: 2003-204219 (2003-07-01), None
patent: 2003-229718 (2003-08-01), None
patent: 2004-140471 (2004-05-01), None
PCT Written Opinion for International Application No. PCT/KR2005/002823; Date of mailing: Nov. 28, 2005.
PCT International Search Report for International Application No. PCT/KR2005/002823; Date of mailing: Nov. 28, 2005.

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