A passive wake-up circuit with high-voltage sensitivity using standard CMOS technology has been designed and implemented.Voltage multipliers and inverter chain optimized for high-voltage sensitivity have been proposed. A radio identification scheme to make peer-to-peer communication has also been proposed. The wake-up circuit converts small-RF input signals into a DC signal to trigger the interrupt. A duty cycle scheduling is adopted for an advanced power control. Using an RF input signal, whose center frequency is 870 MHz and input power is −29.3 dBm, we achieved an output voltage of 0.7 V, enough to trigger on the output. The fully integrated CMOS IC is fabricated using a 0.18-μm standard CMOS process. The chip area is as small as 230 × 190 μm2. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 597–600, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24982
[1]
Youngoo Yang,et al.
Highly sensitive CMOS passive wake-up circuit
,
2008,
2008 Asia-Pacific Microwave Conference.
[2]
John A. Stankovic,et al.
Radio-Triggered Wake-Up for Wireless Sensor Networks
,
2005,
Real-Time Systems.
[3]
Martin Fischer,et al.
Fully integrated passive UHF RFID transponder IC with 16.7-μW minimum RF input power
,
2003,
IEEE J. Solid State Circuits.
[4]
Laurent Dussopt,et al.
Miniature and tunable filters using MEMS capacitors
,
2003
.
[5]
Xiaolei Shi,et al.
Wake-up-frame scheme for ultra low power wireless transceivers
,
2004,
IEEE Global Telecommunications Conference, 2004. GLOBECOM '04..