Design and Fabrication of 2.4 GHz Wake-up Receiver

Shota HIRAMATSU  Masayuki IKEBE  Eiichi SANO  

C - Abstracts of IEICE TRANSACTIONS on Electronics (Japanese Edition)   Vol.J101-C   No.3   pp.147-155
Publication Date: 2018/03/01
Online ISSN: 1881-0217
Type of Manuscript: INVITED PAPER
wireless sensor network,  IoT,  wake-up receiver,  sub-threshold,  switching noise,  mixed signal,  

Full Text(in Japanese): FreePDF(1.7MB)

Reducing power consumption of communication nodes is a key issue for achieving WSN and IoT. The switching noise generated in digital circuits propagates through silicon substrate to analog circuits in a mixed-signal CMOS LSI, and may result in a fault operation of the LSI. This paper investigated the substrate noise coupling between the clock recovery circuit and the input port of the envelop detector in a low-power wake-up receiver (WuRx). The modified and fabricated WuRx successfully operated a 100-kbps PWM signal with a carrier frequency of 2.4 GHz, and the effectiveness of the noise coupling suppression recipe was confirmed.