IEEE Trans Biomed Circuits Syst. 2011 Dec;5(6):523-34. doi: 10.1109/TBCAS.2011.2173340.
This paper describes an ultra-low power (ULP) single chip transceiver for wireless body area network (WBAN) applications. It supports on-off keying (OOK) modulation, and it operates in the 2.36-2.4 GHz medical BAN and 2.4-2.485 GHz ISM bands. It is implemented in 90 nm CMOS technology. The direct modulated transmitter transmits OOK signal with 0 dBm peak power, and it consumes 2.59 mW with 50% OOK. The transmitter front-end supports up to 10 Mbps. The transmitter digital baseband enables digital pulse-shaping to improve spectrum efficiency. The super-regenerative receiver front-end supports up to 5 Mbps with -75 dBm sensitivity. Including the digital part, the receiver consumes 715 μW at 1 Mbps data rate, oversampled at 3 MHz. At the system level the transceiver achieves PER=10 (-2) at 25 meters line of site with 62.5 kbps data rate and 288 bits packet size. The transceiver is integrated in an electrocardiogram (ECG) necklace to monitor the heart's electrical property.
本文描述了一种用于无线体域网 (WBAN) 应用的超低功耗 (ULP) 单片收发器。它支持通断键控 (OOK) 调制，工作在 2.36-2.4GHz 医疗 BAN 和 2.4-2.485GHz ISM 频段。它采用 90nm CMOS 技术实现。直接调制发射器以 0dBm 的峰值功率发送 OOK 信号，在 50%OOK 时消耗 2.59mW。发射器前端支持高达 10Mbps。发射器数字基带支持数字脉冲整形以提高频谱效率。超再生接收器前端支持高达 5Mbps 的灵敏度，为-75dBm。包括数字部分在内，接收器在 1Mbps 数据速率下消耗 715μW，在 3MHz 时过采样。在系统级，收发器在 25 米视距下实现 PER=10(-2)，数据速率为 62.5kbps，数据包大小为 288 位。收发器集成在心电图 (ECG) 项链中，用于监测心脏的电特性。
