数字UWB脉冲发生器设计  

Design of Digital UWB Pulse Generator

作　　者：付佃华[1] 段吉海[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《半导体技术》2007年第8期697-699,共3页Semiconductor Technology

基　　金：广西科学基金(桂科基0575096)

摘　　要：讨论了当前UWB发展的形势。结合传统UWB脉冲发生器设计方法,采用数字设计技术,基于0.18μm工艺标准的CMOS技术,利用组合电路的竞争机制和短矩形脉冲的相位组合原理,设计出了低功耗窄宽度的UWB脉冲发生器,其功率谱符合FCC辐射掩蔽标准。经验证获得了很好的效果,得到的脉冲宽度为370 ps,峰值电压为380 mV。在脉冲重复频率为1 MHz和480 MHz时系统功耗分别仅为0.7 mW和17.4 mW。The developing status of UWB was discussed. Combined with the traditional UWB design method, a digital UWB pulse generator with narrow width and low power consumption was designed based on 0.18 μm standard CMOS technology by digital design method. The strife mechanism of combinational circuit and the principle of phase combination of short rectangle pulses were used in the design. The result shows that power spectrum density （PSD） is complied with the standard of FCC （federal communications commission） mask. Pulse width 370 ps and peak voltage 380 mV are obtained. With the pulse repeat frequencies （PRF） of 1 MHz and 480 MHz, the system power consumption are 0.7 mW and 17.4 mW, respectively.

关 键 词：组合电路 相位组合 功率谱密度 FCC辐射掩蔽 

分 类 号：TN782[电子电信—电路与系统]