ott.ua.edu

1. UAIPD 14-0008
Jaber Abu-Qahouq
Multi-Frequency RF Energy Harvesting System
and Controller Using Reconfigurable Antennas

2. Current Problems
• Single antenna
– Makes it difficult to capture a wide range of frequencies
• Demand for wireless energy harvesting market
– Projected to raise $35 million in 4 years

3. • Controller algorithm and circuit
–Measures available RF energy
• Adjusted antenna design and matching network
–Reconfigure radio frequency (RF) energy
harvesting system
• Allows a wide range of frequencies to be picked up
–Reconfigurable antenna with switches
• Incorporated into a existing energy harvester
–Flexible based on device
Technology

4. Technology
Figure 1. Representative model of Multi-Frequency RF Energy
Harvesting System and Controller

5. • Reconfigurable antenna with switches
• Maximum amount of energy harvested
– Fixate the frequency with most energy
• Periodic sweeps
• Antenna/circuitry optimized for single frequency
range
• Determines the strongest RF signal
Advantages

6. • Dr. Jaber Abu-Qahouq
– Associate Professor
– 24 publications
– 4 patent applications
• Departments
– Center for Advanced Vehicle Technologies
– Center for Materials for Information Technologies
– Electrical and Computer Engineering
Inventor
jaberq@eng.ua.edu

7. Office for Technology Transfer
720 2nd Ct E
Tuscaloosa, AL 35401
UAIPD 14-0008
OTT@UA.edu
www.OTT.UA.edu