RF Energy Scavenging With a Wide-Range Input Power Level

IEEE Access

Demyana A. Saleeb¹  Kyrillos K. Selim²  Shaochuan Wu² 

[1] Faculty of Engineering, Kafrelsheikh University, Kafrelsheikh, Egypt;School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin, China;

关键词: Conversion efficiency;    input power level;    rectifier topology;    RF energy scavenging;   

DOI  :  10.1109/ACCESS.2019.2954624

来源: DOAJ

【 摘 要 】

Energy scavenging is a promising technique for micro-devices such as wireless sensor networks (WSNs). Radio frequency (RF) is considered a sustainable source that can be utilized and harvested due to its important features. The essential goal of this study was designing and investigating a wide input power range through a theoretical and simulation work for the 900 MHz frequency band with acceptable efficiency. In this work, we investigated both the low input power and the high input power range circuits; the two circuits were combined to achieve the goal of the wide input power range. L impedance matching elements were used to perform the desired matching between the power source and the circuit to reduce the reflected power resulted in enhanced RF-DC conversion efficiency. 60 % was the peak efficiency for the proposed design at 0 dBm with the output voltage of 16.56 V, and a generated current of 1.39 mA for the load of 12KΩ.

【 授权许可】

Unknown