A 10.8 mW Body Channel Communication/MICS Dual-Band Transceiver for a Unified Body Sensor Network Controller

An energy-efficient dual-band transceiver for unified body sensor network is presented. The transceiver provides 30-70 MHz body channel communication (BCC) and 402-405 MHz medical implant communication service (MICS). For low energy consumption, the BCC and MICS band circuits in the receiver operate concurrently with their front-ends shared. As a result, up to 30% energy saving is achieved. The dual-band front-end circuits consist of a cascaded LC tank LNA and a current-recycling concurrent-down conversion mixer. The proposed LNA provides > 16 dB gains both in the BCC and MICS bands and suppresses interferences coupled through the human body by more than 10 dB. For BCC robustness, a variable adaptive frequency hopping is applied. The transceiver fabricated with 0.18 ¿m CMOS is fully compatible with the FCC regulations for MICS and consumes 10.8 mW and 4.9 mW in its RX and TX modes, respectively. The adjacent channel rejections are measured at > 30 dB in the dual-bands.

[1]  B. Razavi,et al.  A UWB CMOS transceiver , 2005, IEEE Journal of Solid-State Circuits.

[2]  Hoi-Jun Yoo,et al.  A 60 kb/s–10 Mb/s Adaptive Frequency Hopping Transceiver for Interference-Resilient Body Channel Communication , 2009, IEEE Journal of Solid-State Circuits.

[3]  C.M. Furse,et al.  Design of implantable microstrip antenna for communication with medical implants , 2004, IEEE Transactions on Microwave Theory and Techniques.

[4]  Chun-Huat Heng,et al.  A 2.4-GHz dual-mode 0.18-/spl mu/m CMOS transceiver for Bluetooth and 802.11b , 2003, IEEE Journal of Solid-State Circuits.

[5]  Alison J. Burdett,et al.  A 1V, Micropower System-on-Chip for Vital-Sign Monitoring in Wireless Body Sensor Networks , 2008, 2008 IEEE International Solid-State Circuits Conference - Digest of Technical Papers.

[6]  Philippe De Doncker,et al.  Ultra-wideband channel model for communication around the human body , 2006, IEEE Journal on Selected Areas in Communications.

[7]  P.D. Bradley,et al.  An ultra low power, high performance Medical Implant Communication System (MICS) transceiver for implantable devices , 2006, 2006 IEEE Biomedical Circuits and Systems Conference.

[8]  Hoi-Jun Yoo,et al.  A 60kb/s-to-10Mb/s 0.37nJ/b Adaptive-Frequency-Hopping Transceiver for Body-Area Network , 2008, 2008 IEEE International Solid-State Circuits Conference - Digest of Technical Papers.

[9]  M. Sawan,et al.  A high data rate telemetry system for multi-channel biosignal recording , 2006, 2006 IEEE Biomedical Circuits and Systems Conference.

[10]  Hoi-Jun Yoo,et al.  A 0.2-mW 2-Mb/s Digital Transceiver Based on Wideband Signaling for Human Body Communications , 2007, IEEE Journal of Solid-State Circuits.

[11]  Hoi-Jun Yoo,et al.  A 0.9V 2.6mW Body-Coupled Scalable PHY Transceiver for Body Sensor Applications , 2007, 2007 IEEE International Solid-State Circuits Conference. Digest of Technical Papers.

[12]  Mehmet R. Yuce,et al.  Integrated VCO Design for MICS Transceivers , 2006, IEEE Custom Integrated Circuits Conference 2006.

[13]  Hoi-Jun Yoo,et al.  A 490uW fully MICS compatible FSK transceiver for implantable devices , 2009, 2009 Symposium on VLSI Circuits.

[14]  Hoi-Jun Yoo,et al.  A 10.8mW body-channel-communication/MICS dual-band transceiver for a unified body-sensor-network controller , 2009, 2009 IEEE International Solid-State Circuits Conference - Digest of Technical Papers.

[15]  Hoi-Jun Yoo,et al.  The Human Body Characteristics as a Signal Transmission Medium for Intrabody Communication , 2007, IEEE Transactions on Microwave Theory and Techniques.