Low Power Single-Chip RF Transceiver for Human Body Cormunication  

Low Power Single-Chip RF Transceiver for Human Body Communication

作　　者：Nie Zedong Guan Feng Huang Jin Wang Lei 

机构地区：[1]Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P. R. China [2]The Shenzhen Key Laboratory for Low-cost Healthcare, Shenzhen 518055, P. R. China [3]Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China

出　　处：《China Communications》2012年第9期1-10,共10页中国通信（英文版）

基　　金：This study was supported partially by the Projects of National Natural Science Foundation of China under Crants No. 60932001, No.61072031; the National 863 Program of China un-der Crant No. 2012AA02A604; the National 973 Program of China under Cwant No. 2010CB732606; the Next Generation Communication Technology Major Project of National S＆T un-der Crant No. 2013ZX03005013; the ＂One-hundred Talent＂ and the ＂Low-cost Healthcare＂ Programs of Chinese Academy of Sciences; and the Guangdong Innovation Research Team Funds for Low-cost Healthcare and Irrage-Guided Therapy.

摘　　要：Human body communication is proposed as a promising body proximal comanunication tech- nology for body sensor networks. To achieve low power and slmll volume ill the sensor nodes, a Ra-dio Frequency （RF） application-specific integrated circuit transceiver tbr Human Body Commnunication （HBC） is presented and the characteristics of HBC are investigated. A high data rate On-Off Keying （OOK）/Frequency-Shift Keying （FSK） modulation protocol and an OOK/FSK delrodulator circuit are introduced in this paper, with a data-rate-to-carrier-frequency ratio up to 70%. A low noise amplifier is proposed to handle the dynamic range problem and improve the sensitivity of the receiver path. In addi-tion, a low power autonmatic-gain-control system is realized using a novel architecture, thereby render-ing the peak detector circuit and loop filter unneces-sary. Finally, the complete chip is fabricated. Simula-tion results suggest receiver sensitivity to be-75 dBm. The transceiver shows an overall power con-smxption of 32 mW when data rate is 5 Mbps, de-livering a P1dB output power of - 30 dBm.Human body communication is proposed as a promising body proximal communication technology for body sensor networks.To achieve low power and small volume in the sensor nodes,a Radio Frequency (RF) application-specific integrated circuit transceiver for Human Body Communication (HBC) is presented and the characteristics of HBC are investigated.A high data rate On-Off Keying (OOK)/Frequency-Shift Keying (FSK) modulation protocol and an OOK/FSK demodulator circuit are introduced in this paper,with a data-rate-to-carrier-frequency ratio up to 70%.A low noise amplifier is proposed to handle the dynamic range problem and improve the sensitivity of the receiver path.In addition,a low power automatic-gain-control system is realized using a novel architecture,thereby rendering the peak detector circuit and loop filter unnecessary.Finally,the complete chip is fabricated.Simulation results suggest receiver sensitivity to be-75 dBm.The transceiver shows an overall power consumption of 3.2 mW when data rate is 5 Mbps,delivering a P1 dB output power of-30 dBm.

关 键 词：application-specific integrated circuit TRANSCEIVER human body communication 

分 类 号：TN915.05[电子电信—通信与信息系统] TP334.7[电子电信—信息与通信工程]