Letter to the Editor

Modeling of UHF voltage multiplier for radio-triggered wake-up circuits

  1. Jiang Wang1,
  2. Liang Dong2,*,
  3. Yuzhuo Fu1

Article first published online: 1 JUL 2010

DOI: 10.1002/cta.692

Issue

International Journal of Circuit Theory and Applications

International Journal of Circuit Theory and Applications

Volume 39, Issue 11, pages 1189–1197, November 2011

Additional Information

How to Cite

Wang, J., Dong, L. and Fu, Y. (2011), Modeling of UHF voltage multiplier for radio-triggered wake-up circuits. Int. J. Circ. Theor. Appl., 39: 1189–1197. doi: 10.1002/cta.692

Author Information

  1. 1

    School of Microelectronics, Shanghai Jiao Tong University, Shanghai, People's Republic of China

  2. 2

    Department of Electrical and Computer Engineering, Western Michigan University, Kalamazoo, MI 49008, U.S.A.

*Department of Electrical and Computer Engineering, Western Michigan University, Kalamazoo, MI 49008, U.S.A.

Publication History

  1. Issue published online: 16 NOV 2011
  2. Article first published online: 1 JUL 2010
  3. Manuscript Accepted: 1 MAR 2010
  4. Manuscript Revised: 10 FEB 2010
  5. Manuscript Received: 19 JUN 2009

Funded by

  • Michigan Space Grant Consortium, National Aeronautics and Space Administration (NASA)
  • Faculty Research and Creative Activities Award, Western Michigan University

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Keywords:

  • energy harvesting;
  • wake-up circuit;
  • circuit model;
  • UHF circuit;
  • voltage multiplier

Abstract

Wake-up circuits harvest electromagnetic energy emitted by radio devices, and they can be implemented using ultra-high frequency (UHF) voltage multipliers. In this letter, we derive an analytical model of the UHF voltage multiplier. The model is compliant with HSPICE circuit simulations, and it allows for short design time of voltage multipliers for radio-triggered wake-up circuits. According to this model, we design and optimize voltage multipliers with and without junction capacitance matching. With an incident 2.4-GHz signal of less than −30dBm power, the circuits can produce a voltage above 1 V within tens of microsecond. This dc output switches an inverter of 200MΩ load and wakes up the rest of the circuits on a wireless node. Copyright © 2010 John Wiley & Sons, Ltd.

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