Title :
RF energy harvesting system from cell towers in 900MHz band
Author :
Arrawatia, Mahima ; Baghini, Maryam Shojaei ; Kumar, Girish
Author_Institution :
Electr. Eng. Dept., Indian Inst. of Technol. Bombay, Mumbai, India
Abstract :
An experimental RF energy harvesting system to harvest energy from cell towers is presented in this paper. An electromagnetically-coupled square microstrip antenna is designed and fabricated for deployment in the presented system. Antenna gain of 9.1dB and bandwidth from 877 MHz to 998 MHz is achieved. A Schottky diode-based single stage voltage doubler and six-stage voltage doubler has also been designed and fabricated for DC voltage generation. Measured results show that a voltage of 2.78V is obtained at a distance of 10m from the cell tower and a voltage of 0.87V is obtained at a distance of 50m.
Keywords :
Schottky diodes; electromagnetic coupling; energy harvesting; microstrip antennas; poles and towers; radiofrequency integrated circuits; voltage multipliers; DC voltage generation; RF energy harvesting system; Schottky diode; bandwidth 877 MHz to 998 MHz; cell tower; electromagnetically-coupled square microstrip antenna; frequency 900 MHz; gain 9.1 dB; single stage voltage doubler; six-stage voltage doubler; voltage 0.87 V; voltage 2.78 V; Energy harvesting; Impedance; Microstrip antennas; Poles and towers; Radio frequency; Voltage measurement;
Conference_Titel :
Communications (NCC), 2011 National Conference on
Conference_Location :
Bangalore
Print_ISBN :
978-1-61284-090-1
DOI :
10.1109/NCC.2011.5734733
