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13.56~915 MHz CMOS Rectifier Using Bootstrapping and Active Body Biasing

부트스트래핑과 능동 몸체 바이어싱을 이용한 13.56~915 MHz용 CMOS 정류기

  • Received : 2015.08.12
  • Accepted : 2015.09.25
  • Published : 2015.10.30

Abstract

This paper proposes a rectifier using bootstrapping and active body biasing in $0.11{\mu}m$ RF CMOS process. The proposed rectifier employs the full-wave rectifying structure with cross coupling and increases the power conversion efficiency by reducing the threshold voltage and leakage current using bootstrapping and active bias biasing. Also, it has been designed to be applied to a wide range of applications from 13.56 MHz used in wireless power transmission to 915 MHz used in RFID. As a measured result, 80 % of power conversion efficiency is obtained when the input power is 0 dBm at $10k{\Omega}$ load resistance and 13.56 MHz. Also 40 % of power conversion efficiency is shown in 915 MHz.

Keywords

Rectifier;Bootstrapping;Active Body Biasing;Wireless Power Transmission;RFID

References

  1. G. J. Li, T. C. Lee, "2.4 GHz high-efficiency adaptive power harvester", IEEE Trans. VLSI, vol. 22, no. 2, pp. 434-438, Feb. 2014. https://doi.org/10.1109/TVLSI.2013.2238264
  2. K. Kotani et al., "High efficiency CMOS rectifier circuits for UHF RFIDs using Vth cancellation techniques", IEEE Conf. ASIC, Changsha, China, pp. 20-23, Oct. 2009.
  3. T. T. Le, J. Han, A. von Jouanne, K. Mayaram, and T. S. Fiez, "Piezoelectric micro-power generation interface circuits", IEEE J. Solid-State Circuits, vol. 41, no. 6, pp. 1411-1420, Jun. 2006. https://doi.org/10.1109/JSSC.2006.874286
  4. P. Wei, W. Che, Z. Bi, C. Wei, Y. Na, L. Qiang, and M. Hao, "High-efficiency differential RF front-end for a Gen2 RFID tag", IEEE Trans. Circuits Syst. II, Exp. Briefs, vol. 58, no. 4, pp. 189-194, Apr. 2011. https://doi.org/10.1109/TCSII.2011.2124530
  5. K. Kotani, A. Sasaki, and T. Ito, "High-efficiency differential-drive CMOS rectifier for UHF RFIDs", IEEE J. Solid-State Circuits, vol. 44, no. 11, pp. 3011-3018, Nov. 2009. https://doi.org/10.1109/JSSC.2009.2028955

Acknowledgement

Supported by : 해양수산부