Title :
A 2.45GHz efficient 3D rectenna designed using a novel Yagi-Uda array
Author :
Wang, Zhi ; Hu, Yi-Yao ; Yu, Xi ; Guo, Li-Wen ; Wang, Long ; Li, Joshua Le-Wei
Author_Institution :
Institute of Electromagnetics and School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Abstract :
A high-efficiency rectenna system at 2.45GHz is proposed in the present work for ultralow wireless energy harvesting applications. Composed of a novel 3D Yagi-Uda antenna array and a well-tuned rectifying circuit, the proposed rectenna has achieved antenna gain greater than 10dBi and a conversion efficiency of about 54%. The entire rectenna system can harvest 60.6µW DC power and deliver it to the 8.2kΩ DC load under the power density of 1µW/cm2, resulting in EFoM=9.89dB with the largest dimension of 9.7cm. With the compact size occupation and good performance, the proposed scheme is promising and applicable for low-power applications.
Keywords :
Antenna arrays; Arrays; Rectennas; Stripline; Wireless communication; Wireless sensor networks; Yagi-Uda antennas; 3D antenna Array; Compact; Yagi-Uda; high efficiency; low-power; rectenna;
Conference_Titel :
Microwave Conference (APMC), 2014 Asia-Pacific
