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A 44.5 GHz differentially tuned VCO in 65nm bulk CMOS with 8% tuning range

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4 Author(s)
Cheema, H.M. ; Mixed-signal Microelectron. Group, Eindhoven Univ. of Technol., Eindhoven ; Mahmoudi, R. ; Sanduleanu, M.A.T. ; van Roermund, A.

This paper presents a low power, low phase noise mm-wave voltage controlled oscillator. The VCO can be tuned from 41 to 44.5 GHz (8% tuning range) and utilizes a differential tuning mechanism based on varactors and fixed MIM capacitors. Fabricated in a bulk CMOS 65 nm technology, it consumes 3.6 mW and exhibits a phase noise of -106 dBc/Hz at 1 MHz offset from a 41.2 GHz carrier. The resulting FOM is -192.7 dBc/Hz, which is the best reported value for VCOs operating above 40 GHz.

Published in:

Radio Frequency Integrated Circuits Symposium, 2008. RFIC 2008. IEEE

Date of Conference:

June 17 2008-April 17 2008