An Injection-Locked Based Voltage Boost-up Rectifier for Wireless RF Power Harvesting Applications

  • Lee, Ji-Hoon (Dept. of Electrical Engineering, Kookmin University) ;
  • Jung, Won-Jae (Kookmin University Micro-wave Integrated Circuit Research Center) ;
  • Park, Jun-Seok (Dept. of Electrical Engineering, Kookmin University)
  • Received : 2018.04.30
  • Accepted : 2018.08.19
  • Published : 2018.11.01


This paper presents a radio frequency-to-direct current (RF-to-DC) converter for special RF power harvesting application at 915 MHz. The major featured components of the proposed RF-to-DC converter is the combination of a cross-coupled rectifier and an active diode: first, the cross-coupled rectifier boosts the input voltage to desired level, and an active diode blocks the reverse current, respectively. A prototype was implemented using $0.18{\mu}m$ CMOS technology, and the performance was proven from the fact that the targeted RF harvesting system's full-operation with higher power efficiency; even if the system's input power gets lower (e.g., from nominal 0 to min. -12 dBm), the proposed RF-to-DC converter constantly provides 1.47 V, which is exactly the voltage level to drive follow up system components like DC-to-DC converter and so on. And, maximum power conversion efficiency is 82 % calculated from the 0 dBm input power, 2.3 mA load current.


Supported by : Korea Institute of Energy Technology Evaluation and Planning (KETEP)


  1. Mansour Taghadosi; Lutfi Albasha; Nasir A. Quadir; Yousef Abo Rahama; Nasser Qaddoumi, "High Efficiency Energy Harvesters in 65nm CMOS Process for Autonomous IoT Sensor Applications," IEEE Access, vol. 6, pp. 2397-2409, Dec. 2017.
  2. Yoo, J., Long Yan, Seulki Lee, Yongsang Kim, and Hoi-Jun Yoo, "A 5.2mW Self-Configured Wearable Body Sensor Network Controller and a $12{\mu}W$ Wirelessly Powered Sensor for a Continuous Health Monitoring System," IEEE J. Solid-State Circuits, vol. 45, no. 1, pp. 178-188, Jan. 2010.
  3. Junrui Liang, and Wei-Hsin Liao, "Improved Design and Analysis of Self-Powered Synchronized Switch Interface Circuit for Piezoelectric Energy Harvesting System," IEEE Transctions, Industrial Electronics, vol. 59, no. 4, pp. 1950-1960, Apr. 2012.
  4. Peters C, Spreemsnn D, Ortmanns M , and Manoli Y., "A CMOS integrated voltage and power efficiency AC/DC converter for energy harvesting applications," J. Micromech. Microeng, vol. 18, no. 10, pp. 104005, Oct. 10.
  5. H. T. Friis., "A Note on a Simple Transmission Formula," Proc. IRE, vol. 34, no 5, pp. 254-256, May 1946.
  6. Qingyun Ma, Haider, M.R., and Massoud, Y., "Low-loss rectifier for RF powering of implantable biosensing devices," 13th IEEE Wireless and Microwave Technology Conference, pp. 1-4, Apr. 2012.
  7. Kotani, K., Sasaki, A., and Ito, Takashi, "High-Efficiency Differential-Drive CMOS Rectifier for UHF RFIDs," IEEE J. Solid-State Circuits, vol. 44, no. 11, pp. 3011-3018, Nov. 2009.
  8. Qingyun Ma; Mohammad Rafiqul Haider; Yehia Massoud, "A low-loss rectifier unit for inductivepowering of biomedical implants" 19th IEEE VLSI and System-on-Chip (VLSI-SoC) International Conference, pp. 86-89, Oct. 2011.
  9. Le, T.T., Jifeng Han, von Jouanne, A., and Mayaram, K., "Piezoelectric micro-power generation interface circuits," IEEE J. Solid-State Circuits, vol. 41, no. 6, pp. 1411-1420, Jun. 2006.
  10. R. Yuan and D. P. Arnold, "An input-powered active AC/DC converter with zero standby power for energy harvesting applications," in Energy Conversion Congress and Exposition (ECCE), 2010 IEEE, pp. 4441-4446, Sept. 2010.
  11. S. Scorcioni, L. Larcher, A. Bertacchini, "A Reconfigurable Differential CMOS RF Energy Scavenger With 60% Peak Efficiency and -21dBm Sensitivity," IEEE Microwave and Wireless Components Letters, vol. 23, Issue 3, pp. 155-157, March 2013.
  12. L. B. A. Scorcioni and S. Larcher, "A reconfigurable differential CMOS RF energy scavenger with 60% peak efficiency and-21 dBm sensitivity," IEEE Microw. Wireless Compon. Letter, vol. 23, no. 3, pp. 155-157, 2013.