Title :
A 2.4GHz wireless transceiver with 0.95nJ/b link energy for multi-hop battery-freewireless sensor networks
Author :
Ayers, James ; Panitantum, Napong ; Mayaram, Kartikeya ; Fiez, Terri S.
Author_Institution :
Sch. of EECS, Oregon State Univ., Corvallis, OR, USA
Abstract :
An ultra-low power transceiver for battery-free wireless sensor networks is presented. The receiver uses a modified super-regenerative architecture with BFSK modulation to improve speed and sensitivity. Transmitter efficiency is improved by using a power oscillator to directly drive the antenna. The entire transceiver achieves a total link energy less than 1nJ/b and can communicate over distances as large as 20m, making it the lowest power integrated transceiver to date.
Keywords :
antennas; frequency shift keying; transceivers; wireless sensor networks; BFSK modulation; antenna; frequency 2.4 GHz; link energy; multihop battery-free wireless sensor networks; power integrated transceiver; power oscillator; transmitter efficiency; wireless transceiver; Low power electronics; Oscillators; Receivers; Sensitivity; Transceivers; Transmitters; Wireless sensor networks;
Conference_Titel :
VLSI Circuits (VLSIC), 2010 IEEE Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-5454-9
DOI :
10.1109/VLSIC.2010.5560257
