微波大功率测试系统应用软件开发与设计

发布时间：2018-04-18 03:05

本文选题：传统校准 + 快速校准　；参考：《西安电子科技大学》2015年硕士论文

【摘要】：随着微波技术的不断发展,各种微波大功率器件被应用于国民经济发展的各个领域,对微波大功率器件的测试技术也提出了越来越高的要求,其主要体现在以下两个方面,首先要求能够准确的测得器件在大信号工作状态下的输出阻抗、反射系数等器件参数,其次越来越注重在测试的一体化、自动化、数据处理的等方面的表现。本课题研究的是微波大功率自动测试系统的实现。以微波自动调配器为核心,完成大功率状态下对各微波器件参数的测量,快速准确的得到器件在最优状态下的各参数值。本文介绍了同轴型微波调配器的基本原理,分析了调配器的传统校准和基于数据拟合的快速校准理论,通过实际测试完成了方案的验证。提出了微波大功率自动测试系统的几项应用,其中包括VCO频率牵引测试、微波功率放大器输出端反射系数测试、功率晶体管输出阻抗测试,进行了各测试的理论研究并提出了测试方案,通过实际的测试验证了方案的可行性。研究了晶体管噪声系数的测试应用,并提出了具体的测量步骤。以TestCenter和Visual Studio为软件开发平台,编写了上述的校准模块和几个测试应用的测试软件,实现了自动测试系统的软件框架和软件模块的调用,并将数据处理再以图表的形式呈现。现阶段基本实现了微波大功率测试系统的功能,下一步的工作主要是在此基础上不断的改进和完善各测试的测试方案和软件模块,并不断的添加新的测试应用。
[Abstract]:With the continuous development of microwave technology, various microwave high-power devices have been applied in various fields of national economic development, and the testing technology of microwave high-power devices has put forward more and more high requirements, which are mainly reflected in the following two aspects.First, it is required to accurately measure the output impedance, reflection coefficient and other device parameters in the large signal working state. Secondly, more and more attention is paid to the integration of testing, automation, data processing and other aspects of performance.This paper studies the realization of microwave power automatic test system.Taking the microwave automatic modulator as the core, the parameters of each microwave device are measured under the high power condition, and the parameters of the device in the optimal state are obtained quickly and accurately.The basic principle of coaxial microwave modulator is introduced in this paper. The traditional calibration theory and fast calibration theory based on data fitting are analyzed.Several applications of microwave high power automatic test system are presented, including VCO frequency traction test, microwave power amplifier output reflection coefficient test, power transistor output impedance test, etc.The theoretical research of each test is carried out and the test scheme is put forward, and the feasibility of the scheme is verified by the actual test.The test application of transistor noise coefficient is studied, and the measurement steps are put forward.Using TestCenter and Visual Studio as software development platform, the above calibration modules and test software of several test applications are written. The software framework and software module of the automatic test system are called, and the data processing is presented in the form of charts.At this stage, the function of microwave high-power test system is basically realized. The next step is to improve and perfect the test scheme and software module of each test, and to add new test applications.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN606;TP311.52

【参考文献】