Phase noise analysis and design of a 3-GHz bipolar differential colpitts VCO

Summary, in English

This paper presents a low-phase-noise differential bipolar Colpitts VCO, implemented in a 0.35/spl mu/m BiCMOS process. A time-variant phase noise analysis yields closed- form symbolic expressions for the dominant noise sources in the 1/f/sup 2/ phase-noise region. Measurements show a phase noise of -123 dBc/Hz at 1MHz offset from a 2.8-3.1 GHz carrier, for a figure-of-merit of 183 dBc/Hz. A very good agreement between the derived theoretical formulas, spectreRF simulations, and measurements is observed.

• Författare: Xiaoyan Wang; Ali Fard; Pietro Andreani
• Publiceringsår: 2005
• Språk: Engelska
• Sidor: 391-394
• Publikation/Tidskrift/Serie: Proceedings of the 31st European Solid-State Circuits Conference, 2005. ESSCIRC 2005.
• Länkar: http://ieeexplore.ieee.org/iel5/10265/32889/01541642.pdf?tp=&isnumber=32889&arnumber=1541642&punumber=10265; http://dx.doi.org/10.1109/ESSCIR.2005.1541642
• Dokumenttyp: Konferensbidrag
• Ämne: Electrical Engineering, Electronic Engineering, Information Engineering
• Status: Published
• ISBN/ISSN/Övrigt: ISBN: 0-7803-9205-1