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首页> 外文学位 >Conception et realisation d'un analyseur de reseaux vectoriel a haute-puissance utilisant la technique six-port.
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Conception et realisation d'un analyseur de reseaux vectoriel a haute-puissance utilisant la technique six-port.

机译：使用六端口技术的大功率矢量网络分析仪的设计和实现。

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摘要

In most microwave applications, the measurement of the reflection and transmission coefficients of a wave, in both amplitude and phase, is very important. Until now most high-power instruments were scalar. They were able to measure only the amplitude of the signal. Many applications performed at low-power levels were not possible at high-power level.;The main goal of this work was to design and fabricate a high-power vector network analyzer. This goal was achieved from the high-power adaptation of the low-power six-port junction technique. The modifications made to the low-power setups and calibration procedure are presented in this text.;The first step was the design and fabrication of a high-power six-port reflectometer. The reflectometer was constructed from a low-power six-port junction and a novel directional coupler. The reflectometer was calibrated at 2.45 GHz and at power level of 200 watts. Reflection coefficient measurements were made to validate the accuracy of the reflectometer. Measurements were made at power levels of 3 to 200 W.;The last goal was the design and fabrication of a high-power six-port network analyzer. The network was constructed from two high-power six-port reflectometers, a magic T and a novel excitation generator. S parameter measurements were made to validate the accuracy of the network analyzer. The calibration was made at 2.45 GHz and at power level of 200 watts. Measurements were made at power levels of 6 to 200 W. It is shown that the accuracy of the network analyzer is better than 7% in amplitude and ;A 486 personal computer was used to collect data, control instruments and perform calculations. C programs were developed to perform each of these tasks. These programs and the data acquisition and instruments control setup are presented in the text.
机译：在大多数微波应用中，测量振幅和相位的波的反射和透射系数非常重要。到目前为止，大多数高功率仪器都是标量的。他们只能测量信号的幅度。在高功率水平下，许多在低功率水平下执行的应用是不可能的。这项工作的主要目标是设计和制造高功率矢量网络分析仪。该目标是通过低功耗六端口结技术的高功率适应来实现的。本文介绍了对低功率设置和校准程序的修改。第一步是高功率六端口反射仪的设计和制造。反射计由低功率六端口结和新型定向耦合器构成。反射仪已在2.45 GHz和200瓦的功率水平下进行了校准。进行反射系数测量以验证反射计的准确性。在3至200 W的功率水平下进行测量；最后一个目标是设计和制造大功率六端口网络分析仪。该网络由两个大功率六端口反射仪，魔术T和新型激励发生器构成。进行了S参数测量，以验证网络分析仪的准确性。校准是在2.45 GHz和200瓦的功率水平下进行的。在6至200 W的功率水平下进行了测量。结果表明，网络分析仪的精度在幅度上优于7％，并且使用了486台个人计算机来收集数据，控制仪器和进行计算。开发了C程序来执行所有这些任务。这些程序以及数据采集和仪器控制设置在本文中介绍。

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  • 作者

    Caron, Martin.;

  • 作者单位

    Ecole Polytechnique, Montreal (Canada).;

  • 授予单位 Ecole Polytechnique, Montreal (Canada).;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.Sc.A.
  • 年度 1995
  • 页码 132 p.
  • 总页数 132
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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