网络分析仪

• Scalar network analyzer is a kind of intelligent instrument based on frequency sweep test technology that used to measure the amplitude - frequent cy characteristic of linear system . network analyzer adopt these new technology such as frequency synthesis , sampling technique , broad - band sweeping and computer - assisted testing
  标量网络分析仪是一种基于扫频测量技术,用于测量线性系统幅频特性的智能化仪器。网络分析仪结合了频率合成技术、采样技术、宽带扫频技术、计算机辅助测量等新技术。
• The thesis mainly investigated the bati _ 4o _ 9 ( bt _ 4 ) , which has the lowest dielectric loss in ba - ti system , and ( ba , sr ) tio _ 3 , the a position substitute compound of batio _ 3 . the dielectric properties of bt _ 4 / bst with different preparation way and different elements doping were investigated . a archimedes method , xrd , sem , impedance analyzer , network analyzer and hakki - coleman method were used to investigate the density , phase formation , microstructure , dielectric properties and doping mechanisms
  本论文以在ba - ti系中具有最低介电损耗的bati _ 4o _ 9 ( bt _ 4 )高频介质陶瓷和batio _ 3a位sr取代而得的( ba , sr ) tio _ 3 ( bst )高频介质陶瓷作为研究对象,对不同粉体制备方法制备的bt _ 4 / bst高频电介质材料进行不同元素的掺杂,运用阿基米德方法, x射线衍射分析仪,扫描电子显微镜和阻抗分析仪,网络分析仪, hakki - coleman法等方法手段和测试仪器测试烧成样品的密度,相组成情况,微观结构和介电性能,探讨造成介电性能起伏的形成机理。
• In 1992 , a . enders and g . . nimtz researched the propagation of microwave signal through several different cutoff waveguides with hp8510b network analyzer ( na ) system and hp70820 transition analyzer ( ta ) system . since 1990s , emig , martin and landauer have been investigating the propagation of electromagnetic pulse through a waveguide with piecewise different dielectric constants
  1992年，德国科隆大学的enders和nimtz采用hp8510b网络分析仪系统和hp70820转换分析仪系统研究了不同结构的截止波导中的信号传播，并计算出调制音乐穿过截止波导的时间小于其在真空中的传播时间。
• This paper propose and design a kind of high frequency scalar network analyzer with usb . firstly , discuss the intention and meaning of this research of network analyzer , introduce the characteristic of usb technology and the process of development . then provide the base of network analyzer and the method , summarize the overall project of hardware , put forward the scheme of pc software . lastly , this paper give the debug result of an example and suggestion for the future work
  首先论述网络分析仪开发的目的和意义,介绍usb接口技术特点和开发步骤。然后给出了网络分析的理论依据和分析方法,概述了仪器的硬件总体方案,提出上位机软件的编程方案。最后针对仪器的外部接口,采用usb数据传输,并结合一个实例给出调试结果及今后工作建议。
• The 16 - bit adcs inside the single - chip microcomputer are used in the instrument to measure the output signal of the high frequency tuner , two12 - bit dacs are used to give the control signal needed by programmable gain amplifier . the system has the characteristics such as light volume , light weight , and low cost , which make it more applicable
  该标量网络分析仪能方便地测试一个系统的传输特性和反射特性,与pc机通过通用串行总线( usb )连接,实现被测网络频率特性的图形显示、保存、打印及参数设置功能。
• The quartenvave film stack based on one dimensional photonic crystal technology is designed . the measurement of the ir band is relatively mutual while that of mmw band is lack of report . the reflectivity of ir area ( 3 - 5 m ) by fourier transform infrared spectrometer ( ft - ir ) is given , and the experimental data of mmw band in microwave network analysis is also given
  本文给出了直接在傅立叶红外光谱仪中进行的红外波段透射率(实际是反射率)测量结果，在毫米波波段，通过自行设计的测试方法与测试系统，给出了在hp8510矢量网络分析仪下测得的未镀膜、镀膜样品的比对测试结果。
• First , a research is done in this paper about error correction methods of network analyzer , including the analysis of the network analyzer principle , the establishment of error model and the acquirement of standard calibration method and nonstandard calibration method . based on 12 - error module , the solt ( short + open + load + thru ) method which is standard calibration one and the slt ( short + line + thru ) method which is nonstandard calibration one are obtained
  本文在分析s参数的测量误差的基础上,研究了网络分析仪误差校正方法,包括分析网络分析仪的结构、工作原理和测量方法,用已有的网络分析仪测量s参数时的误差理论建立误差模型,构造其相应的标准件校正方法和非标准件校正方法。
• According to performance parameters test requirements of phased array radar ' s t / r modules , we make a deep study of microwave measurement principles and network measurement principles , analyze the operation principles of the microwave vector network analyzer , have a good knowledge of several functional configurations of hp8510c vector network analyzer , and successfully use a vector network analyzer to accomplish the measurement of microwave pulse high power signals
  根据相控阵雷达t r组件性能参数的测试要求，深入研究了解微波测量及网络测量原理，分析了微波矢量网络分析仪的工作原理，掌握了hp8510c矢量网络分析仪多种功能配的方法，成功地应用微波网络分析仪实现对微波脉冲大功率信号的测量。
• Technology of fine processing was firstly used to make the lsaw biosensor with dual delay linear style . then we developed the dual channels resonance circuit and used the labview software to record and analyze phase / frequency automatically . so the detection system of lsaw biosensor was constructed by combing all these components with network analyzer and computer
  方法: 1 .利用精细微加工方法制备双延迟线型漏声表面波传感器,并自行开发研制自激式振荡电路, labview相位、频率记录分析软件,将它们与网络分析仪、频谱分析仪及计算机联用以构建lsaw生物传感器检测系统。
• In 1992 , a . enders and g . nimtz researched the propagation of microwave signal through several different cutoff waveguides with hp8510b network analyzer ( na ) system and hp70820 transition analyzer ( ta ) system . since 1990s , emig , martin and landauer have been investigating the propagation of electromagnetic pulse through a waveguide with piecewise different dielectric constants
  1992年，德国科隆大学的enders和nimtz采用hp8510b网络分析仪系统和hp70820转换分析仪系统研究了不同结构的截止波导中的信号传播。从90年代开始， emig和martin 、 landauer等人研究了分段填充不同介质的波导中的电磁脉冲波的传播。