A low-power RFID integrated circuits for intelligent healthcare systems

Authors:
Shuenn-Yuh Lee;Liang-Hung Wang;Qiang Fang
Affiliations:
Institute of Electrical Engineering, National Chung Cheng University, Chia-Yi, Taiwan;Institute of Electrical Engineering, National Chung Cheng University, Chia-Yi, Taiwan;Electrical and Computer Engineering, Royal Melbourne, Institute of Technology University, Melbourne, Australia
Venue:
IEEE Transactions on Information Technology in Biomedicine
Year:
2010

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Abstract

This paper presents low-power radio-frequency identification (RFID) technology for intelligent healthcare systems. With attention to power-efficient communication in the body sensor network, RF power transfer was estimated and the required lowpower ICs, which are important in the development of a healthcare system with miniaturization and system integration, are discussed based on the RFID platform. To analyze the power transformation, this paper adopts a 915-MHz industrial, scientific, and medical RF with a radiation power of 70 mW to estimate the power loss under the 1-m communication distance between an RFID reader (bioinformation node) and a transponder (biosignal acquisition nodes). The low-power ICs of the transponder will be implemented in the TSMC 0.18-µm CMOS process. The simulation result reveals that the transponder's IC can fit in with the link budget of the UHF RFID system.