一、引言在微波扫频测量系统中,有一个如图1所示的被称为“微波万用表”的系统。这个系统能对宽带扫频信号源的功率、有源或无源微波网络的传输特性、反射特性以及其它一些微波元器件的特性进行测量。它为从事微波网络的设计人员和使用者提供了一种相当完善的测试手段。准确度是测量技术中的一个基本问题,然而往往也是一个不易解决得好的问题。在微波 I. INTRODUCTION In the microwave sweep measurement system, there is a system called “microwave multimeter” as shown in FIG. 1. This system measures the power of a broadband swept source, the transmission characteristics of the active or passive microwave network, the reflection characteristics and the characteristics of some other microwave components. It provides designers and users of microwave networks with a very sophisticated testing method. Accuracy is a basic problem in measurement techniques, but often it is a problem that is not easily solved. In the microwave