【摘要】 本文给出了一个低功耗、全集成的CMOS脉冲式超宽带发射机电路的设计和流片测试结果,其集成了亚纳秒脉冲发生器、脉冲位置调制(PPM)器和天线驱动电路等,可支持多种调制方式并产生最高达1Gp/s的超宽带脉冲序列。设计采用数字驱动信号上升沿触发的新型反馈结构脉冲发生器,可产生稳定的脉冲信号。通过可调的脉冲宽度和PPM调制步长,设计提供了工艺参数和温度变化的补偿手段。更多还原

【Abstract】 A fully integrated low-power CMOS impulse radio UWB transmitter is presented, which employs a novel feedback pulse generator, a PPM modulator and an antenna driver, etc. The integrated pulse generator is designed to be triggered at each rising edge of input signal, which significantly simplifies the control and modulation circuit. The proposed transmitter can produce UWB pulses at a repetition rate as high as 1Gp/s and with variable pulse width and PPM step. Fabricated in an HJTC’s 0.18um mixed signal CMOS technology, the transmitter shows good performance and low power consumption.更多还原