Title :
An autonomous wireless sensor node using a solar cell antenna for solar energy harvesting
Author :
Danesh, Mina ; Long, John R.
Author_Institution :
ERL/DIMES, Delft Univ. of Technol., Delft, Netherlands
Abstract :
An autonomous 3-5 GHz UWB sensor transmitter node uses a single solar cell of 2 × 2 cm2, sufficient to generate energy up to 20 mW of peak power outdoors, and acting as a broadband monopole antenna in the 3-10 GHz range, thus miniaturizing the overall system package. The sensor node consumes 10 μA average current when transmitting data bursts every 8.5 s at 1 kbits/s using OOK modulation. The harvested solar energy is stored in a supercapacitor to ensure continuity of transmission.
Keywords :
amplitude shift keying; broadband antennas; energy harvesting; microwave antennas; monopole antennas; solar cells; solar energy conversion; wireless sensor networks; OOK modulation; UWB sensor transmitter node; autonomous wireless sensor node; broadband monopole antenna; current 10 muA; frequency 3 GHz to 10 GHz; solar cell antenna; solar energy harvesting; solar energy storage; supercapacitors; Photovoltaic cells; Radio frequency; Supercapacitors; Transmitting antennas; Wireless communication; Wireless sensor networks; Wireless sensor networks; energy harvesting; solar energy; ultra wideband antennas; ultra wideband communications;
Conference_Titel :
Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-61284-754-2
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2011.5972635
