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Volume 15, September
 
 

J. Low Power Electron. Appl., Volume 15, Issue 4 (December 2025) – 1 article

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37 pages, 14177 KB  
Review
Wake-Up Receivers: A Review of Architectures Analysis, Design Techniques, Theories and Frontiers
by Suhao Chen, Xiaopeng Yu and Xiongchun Huang
J. Low Power Electron. Appl. 2025, 15(4), 55; https://doi.org/10.3390/jlpea15040055 - 23 Sep 2025
Abstract
The rapid growth of the Internet of Things (IoT) has driven the need for ultra-low-power wireless communication systems. Wake-up receivers (WuRXs) have emerged as a key technology to enable energy-efficient, near-always-on operation for IoT devices. This review explores the state of the art [...] Read more.
The rapid growth of the Internet of Things (IoT) has driven the need for ultra-low-power wireless communication systems. Wake-up receivers (WuRXs) have emerged as a key technology to enable energy-efficient, near-always-on operation for IoT devices. This review explores the state of the art in WuRXs design, focusing on low-power architectures, key trade-offs, and recent advancements. We discuss the challenges in achieving low power consumption while maintaining sensitivity, power consumption, and interference resilience. The review highlights the evolution from radio frequency (RF) envelope detection architectures to more complex heterodyne and subthreshold designs and concludes with future directions for WuRXs research. Full article
(This article belongs to the Topic Advanced Integrated Circuit Design and Application)
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