A Compact Fractal Loop Rectenna for RF Energy Harvesting

作者：Zeng, Miaowang; Andrenko, Andrey S^*; Liu, Xianluo; Li, Zihong; Tan, Hong Zhou^*

来源：IEEE Antennas and Wireless Propagation Letters, 2017, 16: 2424-2427.

DOI：10.1109/LAWP.2017.2722460

• Fractal loop antenna
• in-loop ground plane (ILGP)
• radio frequency (RF) energy harvesting
• rectenna

This letter presents a compact fractal loop rectenna for RF energy harvesting at GSM1800 bands. First, a fractal loop antenna with novel in-loop ground-plane impedance matching is proposed for the rectenna design. Also, a high-efficiency rectifier is designed in the loop antenna to forma compact rectenna. Measured results show that an efficiency of 61% and an output dc voltage of 1.8 V have been achieved over 12-k Omega resistor for 10 mu W/cm(2) power density at 1.8 GHz. The rectenna is able to power up a battery-less LCD watch at a distance of 10 m from the cell tower. The proposed rectenna is compact, easy to fabricate, and useful for various energy harvesting applications.

• 出版日期2017
• 单位中山大学