Release Time:2019-03-11  Hits:

Indexed by: Conference Paper

Date of Publication: 2009-09-24

Included Journals: Scopus、CPCI-S、EI

Page Number: 3382-3385

Key Words: wireless sensor network; lifetime; radio-triggered; rectifier

Abstract: Power management is an important technique to prolong the lifetime of wireless sensor network(WSN). A radio-triggered based wake-up circuit is proposed to control the activation and shutting down of the wireless sensor node, and thus eliminates energy wasting wake-up periods. The radio-triggered wake-up circuit is optimized to achieve maximum sensitivity by characterizing both the impedance transformation network and the rectifier circuit. The simulation and measurement results show that the circuit can produce a DC output of 220mV with the received power as low as -27.7dBm.