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文内描述最近发展了的一些新技术。这些技术使瓷棒夹持螺线型行波管平均功率产量得到改进。介绍体积小制造简化的高强度慢波线——陶瓷棒连结方法。陶瓷棒与管壳间热传导问题因两者焊接而解决。这种焊接是籍使用复合的金属真空管壳而实现的。该金属设计得使它的热膨胀系数与陶瓷的热膨胀系数精确的匹配。内部衰减器由喷涂的碳化钛制成,此种材料的电阻率的温度系数是零。它喷涂于已连结的陶瓷棒——慢波线部件上。从而就构成简单的由慢波线、夹持棒和衰减器组成的线路部件。叙述精确地排列周期磁铁极靴片的方法,此项技术保持了分开的极靴片与磁铁的适应性,以便在管子制成后装配磁系统。此外,第一峰值磁场的位置很容易地可置于漂移区的入口处附近。休斯公司许多行波管产品使用了上述的各项技术。其中之一(549 H)将在本文中叙述。该管具有倍频程带宽,10千瓦的脉冲输出功率和大的工作比。
The text describes some of the recently developed new technologies. These techniques improve the average power yield of the spiral bar when clamping the bar. Introducing a small volume to create a simplified high-strength slow wave line - ceramic rod connection method. The problem of heat conduction between the ceramic rod and the shell is solved by the welding of both. This welding is the use of composite metal vacuum tube shell to achieve. The metal is designed so that its coefficient of thermal expansion exactly matches the coefficient of thermal expansion of the ceramic. The internal attenuator is made of spray-coated titanium carbide, and the temperature coefficient of resistivity of this material is zero. It is sprayed onto the bonded ceramic rod - slow wave line part. Thus forming a simple circuit composed of a slow wave line, a holding rod and an attenuator. Described is a method of accurately arranging periodic magnet pole pieces that maintains the flexibility of separate pole pieces and magnets to assemble a magnetic system after the pipe is made. In addition, the location of the first peak magnetic field can easily be placed near the entrance of the drift region. Hughes many traveling wave tube products using the above techniques. One of them (549 H) will be described in this article. The tube has octave bandwidth, 10 kilowatts of pulse output power and large working ratio.