“行波管-YIG振荡器”的讨论

本文分析了用钇铁柘榴石(YIG)电调滤波器作为外反馈元件的行波管振荡器的工作原理,推导了这种振荡器的调谐特性。分析表明这种振荡器可以在很宽的频率范围内振荡,但振荡频率是不连续的,每隔一定频率相继出现振荡区和停振区,在一般情况下振荡区和停振区约各占一半,理论分析与实验结果基本符合,这说明行波管-YIG振荡器用作一般的宽频带扫频振荡器还存在一定的问题。

DISCUSSION ON "TWT-YIG OSCILLATOR

The principle of a TWT oscillator using a YIG as feedback element is analyzed and the tunning performance is derived also. It shows also that this kind of oscillator can oscillate in a rather wide frequency range but the oscillating frequency is separated in bands. There are forbidden regions for oscillating. Under ordinary conditions, the forbidden regions are almost equal to the oscillating regions. The results of experiments are in agreement with the theory. This shows that there still are problems if one uses the TWT-YIG oscillator as a broad-band sweeping oscillator.