[关键词]
[摘要]
设计并实现了一种基于单载波UWB（Ultra-wide Band）通信系统中OOK（On-off Keying）调制电路，电路通过UWB极窄脉冲控制BJ]r振荡器的导通或截止来实现UWB信号对载波的调制，将UWB信号的中心频率搬移到FCC开放频段（3．1GHz-10．6GHz）。通过对实际电路的测试，得出当UWB脉冲重复速率为310MHz时，可以实现载波对UWB信号稳定、高效的调制，结果证明此电路是一种非常有效的调制电路。
[Key word]
[Abstract]
An OOK modulation circuit design for single-carrier UWB system is presented in this paper.The UWB signal is modulated by controlling the BJT oscillator on and off,and moving UWB signal center-frequency to FCC regulation(3.1 GHz~10.6 GHz).UWB signal can be modulated when the pulse repetition frequency is 310 MHz.The proposed circuit has proven to be robust and repeatable.
[中图分类号]
TN957
[基金项目]
国家自然科学基金重点研究基金资助项目（60432040）;国家自然科学基金资助项目（60472091）.
