28.1 A 0.42nW 434MHz -79.1dBm Wake-Up Receiver with a Time-Domain Integrator
28.1 A 0.42nW 434MHz -79.1dBm Wake-Up Receiver with a Time-Domain Integrator
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具有时域积分器的 28.1 A 0.42nW 434MHz -79.1dBm 唤醒接收器
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
P. Kinget
中科院分区：
文献类型：
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作者：
Vivek Mangal;P. Kinget
PicoNodes在仓库库存、智能家居或集成患者监控中有应用，需要超低功耗来消除电池更换或启用无电池系统。小巧的外形是实现无处不在部署的关键。最近，唤醒接收器[1，2]已经牺牲了延迟，以提高对非延迟关键型应用的敏感度。然而，要提高灵敏度，需要一个高Q值的前端电感，将工作频率限制在200 MHz以下；这阻碍了天线外形的小型化。更高频率的工作使更小的天线成为可能，但需要更低的Q电感和更高的封装寄生。带有栅极偏置自混频器的接收器[3]在550 MHz处显示出中等灵敏度，具有相对较低的Q匹配网络，然而，自混频器引入了额外的输入电容。
PicoNodes have applications in warehouse inventory, smart homes, or integrated patient monitoring and require ultra-low power consumption to eliminate battery replacement or enable batteryless systems. A small form factor is key for ubiquitous deployment. Recently, wake-up receivers [1, 2]have traded off latency for improved sensitivity for non-latency-critical applications. However, the improved sensitivity requires a high-Q front-end inductor that limits operation to below 200MHz; this stands in the way of a small antenna form factor. Higher-frequency operation makes a smaller antenna possible, but entails lower-Q inductors and higher package parasitics. A receiver with a gate-biased self-mixer [3]has demonstrated a moderate sensitivity at 550MHz with a relatively low-Q matching network, however, the self-mixer introduces extra input capacitance.