微波大功率调配器应用系统的研究

发布时间：2018-07-01 16:47

本文选题：自动测试系统 + 调配器　；参考：《西安电子科技大学》2015年硕士论文

【摘要】：随着科学技术的飞速发展,微波技术不仅被应用于通讯、导航、以及能源等领域,而且已经深入到人们的生活当中。各种微波技术的应用带动了微波器件的发展,同时也相应地推动了微波器件特性参数的研究。本课题研究的微波大功率自动测试系统,它的硬件电路是以微波自动调配器作为核心设备,连同其它测试仪器搭建而成的;它的软件是以中国电子科技集团第41研究所研发的Test Center作为测试平台,采用层次开发的思想、模块化设计的方法开发的;最终能够实现大功率状态下对各个微波器件参数的测量,并能够快速地获得测试结果。本论文先从基础理论出发,主要介绍了与微波相关的传输线理论、Smith圆图和阻抗匹配等,紧接着,对同轴型调配器的工作原理进行了简单的介绍,重点介绍了调配器与计算机之间的通讯。再从实际应用出发,大致地介绍了自动测试系统的软件开发平台-Test Center,以及测试系统硬件电路的搭建,详细介绍了软件的各个功能模块,重点阐述了校准模块当中的两种校准方法,对比采用拟合方法得到的计算值与实际的测量值,我们可以得到结论:采用拟合方法的快速校准比传统校准方法有极大的优势,大大地减少了运算量和所耗时间。另外,研究了负载牵引测试方法,从稳定性条件和实际情况综合考虑,采用遍历式搜索最大功率点的思路,并得到了我们所期望得到的等功率曲线,证明了此方案的可行性。
[Abstract]:With the rapid development of science and technology, microwave technology has not only been used in communication, navigation, energy and other fields, but also in people's lives. The application of various microwave technologies has promoted the development of microwave devices and the study of the characteristic parameters of microwave devices. The microwave high power automatic test system studied in this paper is composed of microwave automatic modulator as the core equipment and other test instruments. Its software is developed with the Test Center developed by the 41st Research Institute of China Electronic Science and Technology Group as the test platform, adopting the idea of hierarchical development and the method of modular design. Finally, the parameters of each microwave device can be measured in high power state, and the test results can be obtained quickly. Starting from the basic theory, this paper mainly introduces the transmission line theory related to microwave, such as Smith circle diagram and impedance matching. Then, the principle of coaxial modulator is briefly introduced. The communication between the modulator and the computer is introduced emphatically. Then from the practical application, the software development platform of the automatic test system-Test Center is introduced, and the hardware circuit of the test system is built, and each function module of the software is introduced in detail. In this paper, two calibration methods in the calibration module are emphatically expounded. Comparing the calculated values with the actual measured values, we can draw the conclusion that the fast calibration with the fitting method has a great advantage over the traditional calibration method. The computation and the time consumed are greatly reduced. In addition, the load traction test method is studied. Considering the stability condition and the actual situation, the idea of searching the maximum power point by ergodic method is adopted, and the equal-power curve we expect is obtained, which proves the feasibility of the scheme.
【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

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