A highly sensitive and ultra-low-power wake-up receiver for energy-autonomous embedded systems

被引：5
|
作者：
Woias, P. [1 ]
Heller, S. [1 ]
Pelz, U. [1 ]
机构：
[1] Albert Ludwigs Univ Freiburg, Dept Microsyst Engn IMTEK, Lab Design Microsyst, Georges Koehler Allee 102, D-79110 Freiburg, Germany
来源：
17TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS 2017) | 2018年 / 1052卷
关键词：
D O I：
10.1088/1742-6596/1052/1/012024
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This article presents the design, optimization and characterization of an ultra-lowpower wake-up receiver for embedded wireless sensor nodes. The RF part of the circuit is based on an optimized diode detector for an amplitude-modulated (AM) 315 MHz RF carrier, followed by an ultra-low power low-frequency (LF) amplifier for the demodulated signal, and a commercial ultra-low-power wake-up receiver IC. Special emphasis has been put into optimizing the RF part with respect to its input sensitivity and selectivity. With two different versions of this circuit part, RF reception sensitivity could be raised from -52 dBm to -63 dBm. Power consumption is 7.4 mu W at a minimum supply voltage of 2 V.
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页数：4
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