RF Power Sensing and Scavenging Using Phonon-Electron Coupling in Acoustic Waveguides

  • Acoustoelectric radio frequency-to-direct current (RF-to-DC) converter
  • Generates acoustic phonons from an RF signal using a piezoelectric material
  • Passive chip-scale scheme reduces battery requirements that hinder the internet of things (IoT)

Abstract
The UCF invention relates to Radio Frequency (RF) Power Sensing and Scavenging Based on Phonon-Electron Coupling in Microscale Waveguides. The new method for RF power sensing and scavenging takes advantage of the energy exchange mechanism between microacoustic waves (which support the majority of today’s RF signal processing in frontend modules) and electrons. In this scheme, proportional to the power of the RF signal, a DC signal is generated and can be immediately read for monitoring purposes or supplied to a subsequent stage. This RF to DC conversion is performed in a completely passive manner in a sub-millimeter footprint and within a lithographically defined frequency range. This allows for its integration in ultra-low power and miniaturized wireless transceivers or for reducing the reliance on batteries, which is hindering the expansion of the internet of things (IoT).

Partnering Opportunity

The research team is seeking partners for licensing and/or research collaboration.

Stage of Development

Prototype available.

Contact Information

Name: Raju Nagaiah

Email: raju@ucf.edu

Phone: 407.882.0593