⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种无需温度补偿晶振（TCXO）的收发器，支持100Hz最小带宽，用于超窄带Sub-GHz物联网蜂窝网络。通过解决载波频率偏移（CFO）挑战，实现了低功耗广域网（LPWA）的高链路预算和网络容量优化。
Christophe Fourtet2, Laurent Ouvry1, Florent Lepin1, Eric Mercier1, Steve Hamard2, Lionel Zirphile2, Sébastien Thuries1, Fabrice Chaix1 CEA-LETI-MINATEC, Grenoble, France Sigfox, Labège, France 1 2 Ultra-narrow-band (UNB) signaling is an enabling technology for low-power widearea (LPWA) networks for the “Internet-of-Things”. Indeed, UNB signaling, based on spectrally efficient modulations such as DBPSK, simultaneously optimizes network capacity while maximizing the communication link budget. However, UNB signaling poses many technical challenges. In the receiver, carrier frequency offsets (CFO) can shift the desired signal from the expected channel. In the transmitter, the difficulty resides in generating the modulated signal with the required spectral purity. This work presents an 850-to-920 MHz RF transceiver dedicated to UNB communication systems employing the DBPSK/GFSK modulations. The receiver is resistant to CFO offsets and drifts of ±75Hz (i.e.
David Lachartre1, François Dehmas1, Carolynn Bernier1,