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Registered VOLTAGE CONTROLLED OSCILLATOR

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Inventors
Lee. Young-Jae, Yu Hyun Kyu, Park Mun Yang, Eo Ik Soo
Application No.
12959058 (2010.12.02)
Publication No.
20110148535 (2011.06.23)
Registration No.
8436689 (2013.05.07)
Country
UNITED STATES
Project Code
09MB2200, Development of Advanced Digital RF Technology for Next Generation Wireless Convergence Terminals, Yu Hyun Kyu
Abstract
A voltage controlled oscillator includes a resonant circuit including one or more transformers and a plurality of variable capacitor circuits connected in parallel to the one or more transformers and generating a plurality of oscillation signals having multiple phases, and a negative resistance circuit including a plurality of transistors cross-coupled via the one or more transformers and generating negative resistance for maintaining the oscillation of the resonant circuit.
KSP Keywords
Capacitor circuit, Multiple phases, Resonant Circuit, Voltage controlled oscillator(VCO), cross-coupled, negative resistance, variable capacitor, voltage controlled