This work demonstrates the design of a rectenna to operate over wide dynamic input power range. It utilizes an adaptive reconfigurable rectifier to overcome the issue of early breakdown voltage in conventional rectifiers. A depletion-mode field-effect transistor has been introduced to operate as a switch and compensate at low and high input power levels for the rectifier. In addition, a meandered monopole antenna has been exploited to collect RF energy. The rectifier design achieves 40% of RF-DC power conversion efficiency over a wide dynamic input power range from -17 dBm to 27 dBm and the antenna exhibits a directivity of 1.92 dBi as well as a return loss of -33 dB. The rectenna is designed to operate in the 900 MHz ISM band and suitable for Wireless Power Transfer (WPT) applications.

Additional Metadata
Keywords Rectifier, Schottky diode, wireless power transfer, wirless power sensor
Persistent URL dx.doi.org/10.1109/EPEC.2016.7771757
Conference 2016 IEEE Electrical Power and Energy Conference, EPEC 2016
Citation
Almohaimeed, A.M., Yagoub, M.C.E., & Amaya, R. (2016). Efficient rectenna with wide dynamic input power range for 900 MHz wireless power transfer applications. In 2016 IEEE Electrical Power and Energy Conference, EPEC 2016. doi:10.1109/EPEC.2016.7771757