论文部分内容阅读
目前,自动网络分析仪已经遍及微波计量领域。通常所说的自动网络分析仪,就是指由复数比值检波器和各种待测接口所组成的测试设备。自动网络分析仪能够测量单端口器件复反射系数(阻抗)和两端口器件的复散射参数。检波器的响应性能则由测试设备的特性及待测器件的特性来确定。计算机尚未普及时,测试设备的设计者竭力避免繁琐的计算和校准,或使计算和校准尽量得到简化。自动网络分析仪的调节很复杂,并且它只提供了使反射和传输信息都消失的幅度响应检波技术。幅度和相位两者的测定,需要数学处理由复数比值检波器所得到的测量结果。在应用微处理机之前,要完成这样的过程是不可能的。自从高速计算的小型电子计算机问世以后,人们便可用它来测量测试设备的校准参数,计算相应的修正因子,并把这些修正因子用于最后所得到的测量结果。
At present, automatic network analyzer has been in the field of microwave measurement. Usually referred to as automatic network analyzer, refers to the complex ratio detector and a variety of test interface consisting of test equipment. Automatic Network Analyzer measures the complex reflection coefficient (impedance) of single-port devices and the complex scattering parameters of two-ported devices. The response of the detector is determined by the characteristics of the test equipment and the characteristics of the device under test. When computers have not yet become popular, designers of test equipment are struggling to avoid tedious calculations and calibrations or to make calculations and calibrations as simple as possible. Automatic network analyzer adjustment is very complicated, and it only provides the amplitude of the reflection and transmission of information disappeared amplitude response detection technology. The determination of both amplitude and phase requires the mathematical processing of the measurement results obtained by the complex ratio detector. Before applying the microprocessor, to complete such a process is impossible. Since the advent of high-speed computing small electronic computers, people can use it to measure the calibration parameters of the test equipment, calculate the corresponding correction factors, and use these correction factors for the final measurement results.