Alternative approach to design matching network for differential drive rectifier used in RF energy harvesting

Shailesh Singh Chouhan*, Kari Halonen

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this work, a measurement-based technique to determine LC-matching network for RF-to-DC converter is proposed. It is shown that the differential drive rectifier can be configured as the differential CMOS LC-oscillator by swapping input and output terminals. Thus, this oscillator can then be used to find the inductor (L) and capacitor (C) component values for the rectifier matching network at the intended frequency, which is the oscillation frequency of the oscillator. Measured results show that the absolute frequency error between resonant frequency obtained from oscillator mode and matching frequency obtained as rectifier is less than 2%. The switching core used in this work has been implemented in a standard 0.18 mu m CMOS technology and external discrete passive components are used to form the LC network.

Original languageEnglish
Pages (from-to)39-43
Number of pages5
JournalMicroelectronics Journal
Volume58
DOIs
Publication statusPublished - Dec 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • RF energy harvesting
  • Differential drive rectifier
  • Matching network
  • RF-to-DC converter
  • Oscillator
  • WIRELESS SENSOR NETWORKS
  • CMOS RECTIFIER
  • UHF RFIDS
  • TECHNOLOGY
  • SYSTEMS

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