A fully integrated electromagnetic energy harvesting circuit with an on-chip antenna for biomedical implants in 180 nm SOI CMOS

Hamed Rahmani, Aydin Babakhani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents an energy harvesting platform for biomedical implantable sensors based on a far-field electromagnetic radiation. The design is composed of an on-chip dipole antenna and a multi stage Dickson voltage rectifier with threshold compensation order of 4. The operating range is up to 15 cm, including 1 cm of biological tissue with high water content. The optimum frequency for power transmission into the implanted chip through multiple biological tissues is studied as well. The system is fabricated in a 180 nm SOI CMOS technology with a total area of 0.42 mm2. The chip can provide 1V DC for a 1ΜΩ resistive load when excited with an 11.2 GHz external transmitter. The maximum efficiency of the wireless link is measured as -51 dB. The voltage rectifier can provide 1V for the 1ΜΩ load with input power as low as 23 μW (-16.3 dBm).

Original languageEnglish (US)
Title of host publicationIEEE Sensors, SENSORS 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479982875
DOIs
StatePublished - Jan 5 2016
Event15th IEEE Sensors Conference, SENSORS 2016 - Orlando, United States
Duration: Oct 30 2016Nov 2 2016

Publication series

NameProceedings of IEEE Sensors
Volume0
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference15th IEEE Sensors Conference, SENSORS 2016
Country/TerritoryUnited States
CityOrlando
Period10/30/1611/2/16

Keywords

  • Biomedical Implants
  • CMOS
  • Energy Harvesting
  • On-chip Antenna
  • Silicon
  • Ultra-low Power Sensors
  • Wireless Power Transfer

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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