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本文提出了一种基于分布式N-path噪声消除架构的超低功耗接收机，工作频率0.4-0.95GHz，采用集成无源器件，实现了-85dBm/100kb/s灵敏度、-41dB SIR和174dB RX FoM，在22nm CMOS工艺中制造。解决了传统超低功耗接收机依赖片外高Q无源器件、频率可调性差的问题。
(ULP) radios requires ULP RX that can operate in crowded ISM environments across geographies while minimizing off-chip components for low cost and for satisfying wearable/IoT device footprints (Fig. 31.8.1). ULP RX based on envelope detectors (ED) have been proposed for µW-power; however high-Q off-chip passives are required for passive gain and interferer tolerance necessitating a change in components with change in operating frequency [1,2]. While mixer-first RX with uncertain IF architectures [3] provide higher linearity and interferer tolerance, implementations have required off-chip components, such as inductors for matching, filtering [3] and gain [4] or low-loss wideband hybrid couplers for noise cancellation [5], that are challenging to integrate. Additionally, ULP
-85dBm/100kb/s Sensitivity, -41dB SIR and 174dB RX FoM, in 22nm CMOS
Hayden Bialek, Matthew Johnston, Arun Natarajan Oregon State University, Corvallis, OR Commercially viable deployment of ubiquitous ultra-low-power