论文部分内容阅读
为了使更高频率的行波管放大器与机载军用设备的和卫星的要求相适应,在改进普通螺旋线行波管技术水平的基础上研制了一种新的行波管。这个行波管在 Ka 波段,在从35到40千兆赫的频率范围内能给出连续波功率10瓦。它代表了螺旋线型周期永磁聚焦行波管当前的最高水平。慢波结构是用精密绕制的钨螺旋线,平均直径0.029英寸,它由四根氧化铍瓷棒夹持。由于选择了低导流系数,因而得到一个适中的5%电子注效率。利用一个有效的单级降压收集极,使效率提高到20%。本文描述行波管的电气的和机械的设计以及高可靠长寿命行波管的主要设计标准。关于螺旋线热性能的分析将和它的制作和组装问题一起另行说明。
In order to adapt the higher-frequency TWT to the requirements of on-board military equipment and satellites, a new traveling-wave tube was developed based on the improvement of the conventional TWT technology. This traveling-wave tube gives a continuous wave power of 10 watts in the Ka-band over a frequency range from 35 to 40 GHz. It represents the current highest level of spiral-type periodic PM focusing TWTs. The slow-wave structure is a precision wound tungsten helix with an average diameter of 0.029 inches, which is held by four beryllium oxide ceramic rods. Due to the choice of low conductivity, a moderate 5% electron injection efficiency is achieved. Use an effective single-stage buck collector to increase efficiency to 20%. This article describes the electrical and mechanical design of traveling wave tubes and the main design criteria for traveling wave tubes with high reliability and long life. An analysis of the thermal performance of a spiral will be described separately from its fabrication and assembly issues.