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A 2.4 GHz high-linearity low-phase-noise CMOS LC-VCO based on capacitance compensation

A 2.4 GHz high-linearity low-phase-noise CMOS LC-VCO based on capacitance compensation
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摘要 A 2.4 GHz high-linearity low-phase-noise cross-coupled CMOS LC voltage-controlled oscillator(VCO) is implemented in standard 0.18-μm CMOS technology.An equalization structure for tuning sensitivity base on the three-stage distributed biased switched-varactor bank and the differential switched-capacitor bank is adopted to reduce the variations of the VCO gain,achieve high linearity,and optimize the phase-noise performance.Compared to the conventional VCO,the proposed VCO has more constant gain over the entire tuning range.The tuning range is about 18.7%from 2.23 to 2.69 GHz,and the phase noise is-95 dBc/Hz at 100-kHz offset and-117 dBc/Hz at 1-MHz offset from the carrier frequency of 2.42 GHz.The power dissipation is 2.1 mW from a 1.8 V power supply.The active area of this VCO is 500×810μm^2. A 2.4 GHz high-linearity low-phase-noise cross-coupled CMOS LC voltage-controlled oscillator(VCO) is implemented in standard 0.18-μm CMOS technology.An equalization structure for tuning sensitivity base on the three-stage distributed biased switched-varactor bank and the differential switched-capacitor bank is adopted to reduce the variations of the VCO gain,achieve high linearity,and optimize the phase-noise performance.Compared to the conventional VCO,the proposed VCO has more constant gain over the entire tuning range.The tuning range is about 18.7%from 2.23 to 2.69 GHz,and the phase noise is-95 dBc/Hz at 100-kHz offset and-117 dBc/Hz at 1-MHz offset from the carrier frequency of 2.42 GHz.The power dissipation is 2.1 mW from a 1.8 V power supply.The active area of this VCO is 500×810μm^2.
出处 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2010年第7期96-101,共6页 半导体学报(英文版)
关键词 SWITCHED-CAPACITOR VARACTOR VCO phase noise tuning range LINEARITY switched-capacitor varactor VCO phase noise tuning range linearity
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参考文献17

  • 1Bemy A D, Niknejad A M, Meyer R G. A 1.8-GHz LC VCO with 1.3-GHz tuning range and digital amplitude calibration. IEEE J Solid-State Circuits, 2005, 40(4): 909.
  • 2Oh Se M, Kim C W, Lee S G. A 74%, 1.56-2.71 GHz, wide- tunable LC-ttmed VCO in 0.35-μm CMOS technology. Microwa Opt Technol Lett, 2003, 37(2): 98.
  • 3Manetakis K, Jessie D, Narathong C. A CMOS VCO with 48% tuning range for modern broadband systems. IEEE Custom Integrated Circuits Conference, 2004:265.
  • 4Fong N H W, Jean-Olivier P, Noah Z. Design of wide-band CMOS VCO for multiband wireless LAN applications. IEEE J Solid-State Circuits, 2003, 38(8): 1333.
  • 5Kim J, Shin J, Kim S, et al. A Wide-band CMOS LC VCO with linearized coarse tuning characteristics. IEEE Trans Circuits Syst, 2008, 55(5): 399.
  • 6Broussev S S, Lehtonen T A, Tchamov N T. A wide-band low phase-noise LC-VCO with programmable Kvco. IEEE Microw Wireless Compon Lett, 2007, 17(4): 274.
  • 7Kwon H, Kang B. Linear frequency modulation of voltage- controlled oscillator using delay-line feedback. IEEE Microw Wireless Compon Lett, 2005, 15(6): 431.
  • 8Mira J, Divel T, Ramet S, et al. Distributed MOS varactor biasing for VCO gain equalization in 0.13 μm CMOS technology. RFIC Symposium, 2004:131.
  • 9Hegazi E, Abidi A. Varactor characteristics, oscillator tuning curves, and AM-FM conversion. IEEE J Solid-State Circuits, 2003, 38(6): 1033.
  • 10Andreani P, Mattisson S. On the use of MOS varactors in RF VCO's. IEEE J Solid-State Circuits, 2000, 35(6): 905.

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