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A 65-nm Sub-10-mW CommunicationRanging Quadrature Uncertain-IF IR-UWB Transceive
65纳米工艺下实现低于10mW功耗的通信测距正交不确定中频IR-UWB收发器
65nm CMOS, 6-8GHz, 10Mb/s, -71dBm灵敏度, 0.96cm测距精度
超宽带通信非相干收发器跳频OOK正交解调窄带干扰抑制
▸创新点1：双OOK调制技术(T-OOK)，通过使用短时同步脉冲和长时数据脉冲，解决了传统非相干接收机的同步问题，并采用跳频方法提高了频谱效率，显著提升了系统性能。
▸创新点2：正交不确定中频下变频技术，通过正交解调和片上带通滤波器，实现了对频率漂移的鲁棒解调和对窄带干扰的良好容忍度，增强了接收机的稳定性。
▸创新点3：IQ双路信号增强测距精度，利用同相和正交两路信号，提高了测距精度，实现了0.96厘米的均方根测距精度，显著提升了系统的测距能力。
▸创新点4：65-nm CMOS工艺实现，整个收发器在65-nm CMOS工艺下实现，发射机和接收机的功耗分别为3.83 mW和5.38 mW，具有低功耗和高集成度的特点。
Abstract
This article describes a robust noncoherent
transceiver architecture for pulse-based ultrawideband (UWB)
communication systems. To address synchronization and inter-
ference issues in the conventional noncoherent transceiver with
on–off keying (OOK) modulation, two techniques are proposed.
The first one is twin-OOK (T-OOK) modulation, in which two
pulses are used to represent 1-bit data. A short-duration synchro-
nization pulse is employed for baseband synchronization, while a
long-duration data