A Low-Power Dual-Injection-Locked RF Receiver With FSK-to-OOK Conversion for Biomedical Implants

被引:37
|
作者
Zgaren, Mohamed [1 ]
Sawan, Mohamad [1 ]
机构
[1] Polytech Montreal, Polystim Neurotechnol Lab, Dept Elect Engn, Montreal, PQ H3T 1J4, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
ASK; dual injection locking; energy harvesting; envelope detection; FSK; FSK-to-ASK conversion; low power biomedical implants; OOK; wake-up receiver; TRANSCEIVER;
D O I
10.1109/TCSI.2015.2477577
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We present in this paper an ultra low power ISM band RF receiver intended for implantable biomedical devices. The proposed circuit, which represents the reception part of a new energy- efficient RF FSK transceiver, consist of an FSK receiver (Rx) with OOK fully passive wake-up device (WuRx). This WuRx is batteryless with energy harvesting technique which plays an important role in making the RF transceiver energy-efficient. This proposed receiver is achieved with a reduced hardware architecture which does not use an accurate local oscillator, high Q external inductor and I/Q signal path. The circuit is base on a dual injection locked FSK-to-ASK conversion technique. The circuit is implemented in IBM 0.13 mu m CMOS technology with 1.2 V supply voltage. This WuRx achieves a data rate of 100 kbps for 0.2 mu W power dissipation at -53 dBm input signal. The Rx shows -78 dBm sensitivity for 8 Mbps data rate while consuming 639 mu w power.
引用
收藏
页码:2748 / 2758
页数:11
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