A Battery-Less Wirelessly Powered Frequency-Swept Spectroscopy Sensor

UCLA researchers have developed a fully integrated wirelessly powered microchip with a small footprint of 2.47mm2. The chip includes an energy-harvesting front-end, a power management unit, a super-harmonic injection-locked oscillator, and on-chip rece…

UCLA researchers have developed a fully integrated wirelessly powered microchip with a small footprint of 2.47mm2. The chip includes an energy-harvesting front-end, a power management unit, a super-harmonic injection-locked oscillator, and on-chip receiving and transmitting antennas. The chip was successfully developed and achieved a maximum operating distance of 8cm, a 22% locking range from 4 to 5GHz, and a phase noise of -93dBc/Hz at 100Hz offset. The large locking range allowed for spectroscopy measurements on a variety of materials and fluids.

Abstract

UCLA researchers in the Department of Electrical and Computer Engineering have developed a wirelessly powered frequency-swept spectroscopy sensor.

Website

https://techtransfer.universityofcalifornia.edu/NCD/31987.html?utm_source=AUTMGTP&utm_medium=webpage&utm_term=ncdid_31987&utm_campaign=TechWebsites

Advantages

  • Extended operating distance 
  • Enhanced sensitivity 
  • Reduced power consumption potential Applications from the duty cycle mode 
  • Large locking range

Potential Applications

  • Medical implants: detection of bleeding, body fluidic, cancerous tissue, etc. 
  • Industrial monitoring: detection of corrosion, crack, or change in the dielectric. 
  • Consumer electronics: fingerprint detection, touch sensors, objects identification, etc.

Contact Information

Name: UCLA Technology Development Group

Email: ncd@tdg.ucla.edu

Phone: 310.794.0558