Performance evaluation of classical differential rectifier by using forward body biasing technique

Shailesh Singh Chouhan*, Kari Halonen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)


The growing usage of passive Radio frequency identification (RFID) tag has motivated research in its power supply design. The essential component of a power supply utilized in RFID is the rectifier which performs RF-to-DC conversion. In the implementation of rectifier, the conventional body bias technique is usually used where the body and source terminals of a transistor are tied together to achieve the zero bias threshold voltage value. In this work, an implementation of forward body biasing (FBB) scheme in the place of a conventional body biasing (CBB) technique in a rectifier is addressed. It has been found by using the post layout simulations that the FBB scheme is not only capable of extending the limits of the conventional differential rectifier in terms of load handling but also increases its RF signal sensitivity. In order to evaluate the performances of both architectures, the voltage conversion efficiency (VCE) and the power conversion efficiency (PCE) are selected as the figure of merits. The designs have been implemented in a standard 0.18 mu m CMOS technology and the simulations were done by using the Cadence spectre simulator at the RF frequency of 915 MHZ. The simulation results show improvement in PCE and VCE of the differential rectifier using FBB scheme when compared with the differential rectifier using CBB scheme.

Original languageEnglish
Title of host publication2016 IEEE Nordic Circuits and Systems Conference (NORCAS)
Number of pages4
ISBN (Electronic)978-1-5090-1095-0
Publication statusPublished - 2016
MoE publication typeA4 Conference publication
EventIEEE Nordic Circuits and Systems Conference - Copenhagen, Denmark
Duration: 1 Nov 20162 Nov 2016
Conference number: 2


ConferenceIEEE Nordic Circuits and Systems Conference
Abbreviated title NORCAS


  • Energy harvesting
  • RFID
  • UHF
  • Rectifier
  • Voltage Multiplier
  • RF
  • TAG


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