⚡ 本页包含 AI 生成的分析内容,仅供参考
本文提出一种基于90nm CMOS工艺的无晶体射频收发器,支持5Mb/s数据速率,用于射频供电的无线传感器网络节点,旨在延长读写距离并实现免电池维护。
free-of-maintenance solution for wireless sensor network (WSN) applications. By combining sensing functionalities and batteryless (RFID-like) wireless connectivity, these devices provide a viable option for all those scenarios in which node battery replacement is impractical because of either a huge number of deployed devices or inaccessible node placement. Extension of the reading range is a key design issue for RF-powered WSNs. When a backscattering-based passive RFID approach is adopted, the downlink reading range is limited by the power threshold of the input rectifier, whereas the uplink range is limited by the reader self-jamming. As increasingly efficient RF-to-DC power conversion schemes are being introduced, the uplink power budget will likely be the bottleneck of future passive RFID
Giuseppe Papotto1, Francesco Carrara2, Alessandro Finocchiaro2, Giuseppe Palmisano1
University of Catania, Catania, Italy 2 STMicroelectronics, Catania, Italy 1 RF-powered transponders provide a low-cost and potentially