Title :
A study on the analysis of rectenna efficiency for wireless power transmission
Author :
Park, Yang-Ha ; Dong-Gi Youn ; Kim, Kwan-Ho ; Rhee, Young-Chul
Author_Institution :
Korea Electrotechnol. Res. Inst., Changwon, South Korea
Abstract :
We designed and manufactured microstrip patch, dipole and Yagi-Uda antennas mainly used in the existing rectenna (rectifying antenna) and then analyzed the RF-DC conversion efficiency of wireless power transmission system. From the result of measuring RF-DC conversion efficiency with loads of each rectenna element designed and manufactured in this study, we found that the maximum efficiency would be 75.6% at 400 Ω of load resistance in patch type, 69.75% at 360 Ω in dipole type, and 81.3% at 270 Ω in Yagi-Uda type. Under these optimum load conditions, the maximum conversion efficiency in the RF-DC conversion efficiency experiment was determined within ±20% in case of the existing patch and dipole rectennas but for Yagi-Uda, it was determined within ±13%
Keywords :
Yagi antenna arrays; dipole antennas; microstrip antennas; microwave power transmission; rectifying circuits; 270 ohm; 380 ohm; 400 ohm; 69.75 percent; 75.6 percent; 81.3 percent; RF-DC conversion efficiency; Yagi-Uda antennas; dipole antenna; load resistance; maximum conversion efficiency; microstrip patch antenna; rectenna; rectenna efficiency; rectifying antenna; wireless power transmission; Diodes; Dipole antennas; Manufacturing; Microwave antennas; Microwave filters; Power harmonic filters; Power transmission; Rectennas; Transmitting antennas; Voltage;
Conference_Titel :
TENCON 99. Proceedings of the IEEE Region 10 Conference
Conference_Location :
Cheju Island
Print_ISBN :
0-7803-5739-6
DOI :
10.1109/TENCON.1999.818698
