Issue

Vol. 17 (2025)

Advancements in Passive Wireless Sensing Systems in Monitoring Harsh Environment and Healthcare Applications

https://doi.org/10.1007/s40820-024-01599-8
Wei Yue
RFIC Bio Centre, Kwangwoon University, Seoul 01897, South Korea
Yunjian Guo
RFIC Bio Centre, Kwangwoon University, Seoul 01897, South Korea
Jong‐Chul Lee
RFIC Bio Centre, Kwangwoon University, Seoul 01897, South Korea
Enkhzaya Ganbold
RFIC Bio Centre, Kwangwoon University, Seoul 01897, South Korea
Jia‑Kang Wu
RFIC Bio Centre, Kwangwoon University, Seoul 01897, South Korea
Yang Li
RFIC Bio Centre, Kwangwoon University, Seoul 01897, South Korea
Cong Wang
RFIC Bio Centre, Kwangwoon University, Seoul 01897, South Korea
Hyun Soo Kim
RFIC Bio Centre, Kwangwoon University, Seoul 01897, South Korea
Young‑Kee Shin
RFIC Bio Centre, Kwangwoon University, Seoul 01897, South Korea
Jun‑Ge Liang
RFIC Bio Centre, Kwangwoon University, Seoul 01897, South Korea
Eun‑Seong Kim
RFIC Bio Centre, Kwangwoon University, Seoul 01897, South Korea
Nam‑Young Kim
RFIC Bio Centre, Kwangwoon University, Seoul 01897, South Korea

Corresponding Author: Nam‑Young Kim

nykim@kw.ac.kr

Nano-Micro Letters, Vol. 17 (2025), Article Number: 106

Abstract

Recent advancements in passive wireless sensor technology have significantly extended the application scope of sensing, particularly in challenging environments for monitoring industry and healthcare applications. These systems are equipped with battery-free operation, wireless connectivity, and are designed to be both miniaturized and lightweight. Such features enable the safe, real-time monitoring of industrial environments and support high-precision physiological measurements in confined internal body spaces and on wearable epidermal devices. Despite the exploration into diverse application environments, the development of a systematic and comprehensive research framework for system architecture remains elusive, which hampers further optimization of these systems. This review, therefore, begins with an examination of application scenarios, progresses to evaluate current system architectures, and discusses the function of each component—specifically, the passive sensor module, the wireless communication model, and the readout module—within the context of key implementations in target sensing systems. Furthermore, we present case studies that demonstrate the feasibility of proposed classified components for sensing scenarios, derived from this systematic approach. By outlining a research trajectory for the application of passive wireless systems in sensing technologies, this paper aims to establish a foundation for more advanced, user-friendly applications.


Highlights:
1 This review comprehensively examines recent advancements in passive wireless systems applied to industrial environments and biomedical sensing, with a particular focus on the design strategies of passive wireless systems.
2 The design principles and operational mechanisms of passive wireless system components (sensing modules and readout modules) are systematically categorized.
3 Based on the latest research, the review highlights the innovative applications of passive wireless concepts in industrial environments, equipment safety, as well as in vivo and surface signal detection.

Keywords

Wireless sensing Passive detection Harsh environment Biomedical monitoring Flexible sensors
Yue, Wei, Yunjian Guo, Jong‐Chul Lee, Enkhzaya Ganbold, Jia‑Kang Wu, Yang Li, Cong Wang, Hyun Soo Kim, Young‑Kee Shin, Jun‑Ge Liang, Eun‑Seong Kim, and Nam‑Young Kim. 2025. “Advancements in Passive Wireless Sensing Systems in Monitoring Harsh Environment and Healthcare Applications”. Nano-Micro Letters 17 (January):106. https://doi.org/10.1007/s40820-024-01599-8.
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