基于共面波导的NVNA相位参考设计及应用  

Design and Application of the NVNA Phase Reference Based on the CPW

作　　者：徐清华[1] 林茂六[2] 

机构地区：[1]中国计量科学研究院,北京100013 [2]哈尔滨工业大学电子与信息工程学院,哈尔滨150001

出　　处：《自动化与仪表》2014年第5期52-56,共5页Automation & Instrumentation

基　　金：国家自然科学基金项目(NSFC)(60772078);教育部博士点基金项目(PFDR)(20070213026);总装备部2010-2012年度通用测试技术预研基金项目

摘　　要：该文设计了一种基于共面波导的皮秒级脉冲发生器,该脉冲发生器利用阶跃恢复二极管(SRD)及片上短路延迟线来产生窄脉冲信号。测试证明此器件可产生半幅宽度为80ps,且幅度相位特性稳定的脉冲信号。该脉冲发生器的相位可重复性优于±1.75°,可用作非线性矢量网络分析仪(NVNA)的相位参考和谐波相位绝对校准的标准组件。实验表明它还可作为相位传递标准,对带宽小于20 GHz的采样示波器及其他电子设备的复频率响应进行校准。This paper designs a new picoseconds pulse generator based on the coplanar waveguide（CPW）. The pulse generator generates a super narrow pulses signal by using the step-recovary diode（SRD）and shot line on the chip.Experiment results show that the output pulse has a pulsewidth of 80ps and 100MHz-500MHz repetition rate,and the characteristic of the amplitude and phase response was stability. The phase repeatability of the pulse generator was better than ±1.75°,and the pulse generator can be used for the phase reference and harmonic phase of absolute calibration device of the nonlinear vector network analyzer（NVNA）. The experiments show it can be used as phase transfer standard to calibrate the complex frequency response of other oscilloscopes and electronic equipments,of which the bandwidth are less than 20 GHz.

关 键 词：脉冲发生器 非线性矢量网络分析仪 共面波导 相位参考 

分 类 号：TN98[电子电信—信息与通信工程]