Title :
DTV band micropower RF energy-harvesting circuit architecture and performance analysis
Author :
Mikeka, Chomora ; Arai, Hiroyuki ; Georgiadis, Apostolos ; Collado, Ana
Author_Institution :
Grad. Sch. of Eng., Yokohama Nat. Univ., Yokohama, Japan
Abstract :
A design architecture for a micropower RF energy-harvesting in the Digital TV (DTV) band is presented. The rectifying antenna (rectenna), given a single tone excitation at 550 MHz, has a measured conversion efficiency of 0.4% for -40 dBm input and 18.2% for -20 dBm input, respectively. A DC-DC boost converter circuit is designed and fabricated to be used along with this rectenna. The DC-DC boost converter circuit is able to operate with voltages as low as 400mV DC while the measured DC-DC conversion efficiency is at least 11.3%.
Keywords :
DC-DC power convertors; UHF antennas; digital television; rectennas; television antennas; DC- DC boost converter circuit; DC-DC conversion efficiency; DTV band micropower RF energy-harvesting circuit; digital TV; frequency 550 MHz; rectenna; rectifying antenna; Antenna measurements; Digital TV; Energy harvesting; Oscillators; Rectennas; Switches;
Conference_Titel :
RFID-Technologies and Applications (RFID-TA), 2011 IEEE International Conference on
Conference_Location :
Sitges
Print_ISBN :
978-1-4577-0028-6
DOI :
10.1109/RFID-TA.2011.6068601
