An 11-GHz 3-V SiGe Voltage-Controlled Oscillator with Integrated Resonator

        A 10.5 to 11-GHz fully-monolithic voltage-controlled oscillator circuit implemented in a standard SiGe bipolar technology is presented. An oscillator phase noise of -78 to -87 dBc/Hz is achieved at 100-kHz offset. The tuning range is close to 5% with an on-chip varactor-tuned resonator and for a control voltage of 0 to 3 V. The circuit draws less than 8 mA from a 3-V supply including the reference branch bias current.

By: Mehmet Soyuer, Joachim N. Burghartz, Herschel A. Ainspan, Keith A. Jenkins, Peter Xiao, Arvin R. Shahani, Margaret S. Dolan and David L. Harame

Published in: RC20740 in 1997

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