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穿透式行波管,又称为增强级行波管,是近年来研究工作比较活跃的耦合腔行渡管。它的特点是管内不设衰减器,电磁波传输损耗很低,故得名“穿透式”。为避免发生振荡,这种管子慢波线很短,整管增益仅10分贝左右。这种低增益行波管有两种用途:一是按在现有发射机末端,作为输出放大级,以提高现有雷达的输出功率,因而又称“增强级”行波管;另一种用途,是用作双模发射机末级发射管。由于穿透式行波管电路损耗极小,低功率模式的信号便可直接穿过行波管到达天线;这时管子不加高压,不存在
Transmitted traveling wave tube, also known as enhanced level traveling wave tube, is a relatively active research in recent years, coupling cavity line crossing. It is characterized by the tube does not set the attenuator, electromagnetic wave transmission loss is low, so named “penetrating.” To avoid oscillation, this tube slow wave line is very short, the entire pipe gain of only about 10 decibels. This kind of low-gain TWT has two purposes: one is to press at the end of the existing transmitter as an output amplifier stage to increase the output power of the existing radar and hence the “enhanced” TWT; the other Use, is used as a dual-mode transmitter last stage launch tube. Due to the extremely small loss of the trans-microwave traveling-wave tube circuit, the signal of the low-power mode can directly reach the antenna through the traveling-wave tube; at this time, the tube does not have high voltage and does not exist