A 2.4/5.8 GHz 10 μW wake-up receiver with −65/−50 dBm sensitivity using direct active rf detection
Authors:
- 1 December 2012
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 337-340
Abstract
This paper presents a fully integrated wake-up receiver (WuRx) with direct active RF detection. The RF front-end features a high-sensitivity RF detector embedded with input matching network, obviating the need of RF amplification and LO generation for frequency downconversion. This complete receiver contains an RF detector, IF amplifiers, and a continuous-time ΣΔ ADC to provide inherent anti-alias filtering, which simplifies the overall design in 0.18-μm CMOS process. It achieves a sensitivity of -65 dBm for data rate of 100 kbps, operating in 2.4 GHz ISM band with only 10 μW. By adjusting the input matching, it can also operate for 5.8 GHz band, providing -50 dBm sensitivity without additional power consumption.Keywords
This publication has 6 references indexed in Scilit:
- An interference-aware 5.8GHz wake-up radio for ETCS2012
- A 2.4µW Wake-up Receiver for wireless sensor nodes with −71dBm sensitivity2011
- A 2.4GHz/915MHz 51µW wake-up receiver with offset and noise suppression2010
- Wake-up receivers for wireless sensor networks: benefits and challengesIEEE Wireless Communications, 2009
- RF detector for on-chip amplitude measurementsElectronics Letters, 2004
- A 1.5-V, 1.5-GHz CMOS low noise amplifierIEEE Journal of Solid-State Circuits, 1997