A 4.78µs Dynamic Compensated Inductive Coupling Transceiver for Ubiquitous and Wearable Body Sensor Network

Seulki LEE; Jerald YOO; Hoi-Jun YOO

doi:10.1587/transcom.E93.B.2892

Special Section on Fundamental Issues on Deployment of Ubiquitous Sensor Networks

A 4.78µs Dynamic Compensated Inductive Coupling Transceiver for Ubiquitous and Wearable Body Sensor Network

著者情報

キーワード: inductive coupling, low power transceiver, short range wireless communication, wearable body sensor network, ubiquitous sensor network

ジャーナル認証あり

2010 年 E93.B 巻 11 号 p. 2892-2900

DOI https://doi.org/10.1587/transcom.E93.B.2892

詳細

抄録

A Real-time Capacitor Compensation (RCC) scheme is proposed for low power and continuous communication in the wearable inductive coupling transceiver. Since inductance values of wearable inductor vary dynamically with deterioration of its communication characteristics, the inductance value is monitored and its resonance frequency is adjusted by additive parallel/serial capacitors in real time. RLC Bridge for detection of the inductance variations and the Dual-edge Sampling Comparator for recognition of the variance direction are proposed. It is implemented in a 0.18µm CMOS technology, and it occupies a 1 × 2.7mm² chip area. The proposed transceiver consumes only 426.6µW at 4Mbps data rate. The compensation time takes 4.78µs, including 3µs of detection and 1.78µs for compensation process in worst case.

責任著者(Corresponding author)

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