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Single-Chip CMOS Pulse Generator for UWB Systems
介绍了一种用于超宽带系统的单芯片CMOS脉冲发生器，支持位置和极性调制。
130nm CMOS, 1.2V, 10mW, 160Mb/s
超宽带脉冲发生器CMOS位置调制极性调制
▸创新点1：结合延迟边缘形成短脉冲（方法创新）。通过精确控制不同延迟边缘的组合，生成极短持续时间的逻辑脉冲，再通过滤波形成UWB脉冲。这种方法显著提高了脉冲的时间分辨率，适用于高速数据传输。
▸创新点2：支持位置调制（2-PPM）和极性调制（BPSK）（系统创新）。通过灵活的调制方式，实现了多模式数据传输，增强了系统的适应性和通信效率，支持高达160 Mb/s的原始数据速率。
▸创新点3：低功耗设计（电路创新）。采用130-nm CMOS工艺和1.2 V单电源电压，功耗低于10 mW，在保证高性能的同时显著降低了能耗，适合便携式和电池供电设备。
▸创新点4：可调脉冲形状和频谱（方法创新）。通过调整延迟边缘的组合，灵活控制输出脉冲的形状和频谱，优化了UWB信号的传输性能，适应不同的通信环境和需求。
Abstract
This paper presents a single-chip pulse generator de- veloped for Ultra Wide Band (UWB) wireless communication sys- tems based on impulse radio technology. The chip has been inte- grated in a CMOS 130-nm technology with a single supply voltage of 1.2 V. The basic concept is to combine different delayed edges in order to form a very short duration “logical” pulse, and then filter it, so as to obtain an UWB pulse. It is possible to vary the output pulse shape, and thus the corresponding spectrum, just by acting on the delayed edge combination. Furthermore, the pulse generator supports both position modulation (2-PPM) and polarity modulation (BPSK modulation) in order to convey data through the air. Its power consumption remains less than 10 mW for a raw data rate of up to 160 Mb/s. Spectral and temporal measurements of the single-chip pulse generator are presented with an illustration of the modulation effects on the power spectral density (PSD).