论文部分内容阅读
一、引言所谓一个微波元件的相移是指在匹配条件下,输入端的入射波a_1和输出端的输出波b_2之间的相位差,也就是该元件传输系数的幅角。但在实际测量一个微波元件的相移或使用一个微波元件的相移时,往往出现与这定义不同的情况。例如,系统不匹配,确定相移的参考波不是输入端的入射波a_1,而是微波电源接匹配负载时的输出波E_g,这时该元件的相移不仅与传输系数的幅角有关,还与元件本身的反射,负载的反射和信号源的反射有关。
I. Introduction The so-called phase shift of a microwave component refers to the phase difference between the incident wave a_1 of the input end and the output wave b_2 of the output end under the matching condition, that is, the argument of the transmission coefficient of the component. However, a different situation from this definition often occurs when actually measuring the phase shift of a microwave element or using the phase shift of a microwave element. For example, if the system does not match, the reference wave that determines the phase shift is not the incoming wave a_1 of the input but the output wave E_g when the microwave power source is matched to the load. At this time, the phase shift of the element is not only related to the argument of the transmission coefficient, The reflection of the component itself, the reflection of the load and the reflection of the signal source.