Title :
A high sensitivity and low power envelope detector for wireless sensor nodes
Author :
Ramos-Valido, D. ; Garcia-Vazquez, H. ; Khemchandani, Sunil L. ; del Pino, J. ; Lujan-Martinez, C. ; Bistue, Guillermo
Author_Institution :
Dept. de Ing. Electron. y Autom., Univ. de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
Abstract :
In this paper different parts of a wake-up receiver for wireless sensor node are presented. The circuit is composed of an amplifier with input impedance matching network and an envelope detector both working at 868 MHz. The amplifier is incorporated in order to increase the sensitivity of the wake-up receiver. The amplified signal passes to the envelope detector which demodulate on-off keying signal at 125 kHz. The circuits have been designed to optimize power consumption and area. The total power consumption and the minimum signal detected are 44.32 uW and 0.4 mVp respectively. The circuits were implemented in UMC CMOS 65 nm process.
Keywords :
amplifiers; radio receivers; signal detection; wireless sensor networks; UMC CMOS; amplifier; high sensitivity; impedance matching network; low power envelope detector; onoff keying signal demodulation; optimize power consumption; signal detection; wakeup receiver; wireless sensor nodes; Receivers; Wireless communication; Wireless sensor networks; envelope detector; low power amplifier; wake-up;
Conference_Titel :
Design of Circuits and Integrated Circuits (DCIS), 2014 Conference on
Conference_Location :
Madrid
DOI :
10.1109/DCIS.2014.7035598
