94 GHz超模耦合腔行波管实验

IEEE International Vacuum Electronics Conference. International Vacuum Electronics Conference Pub Date : 2014-04-22 DOI:10.1109/IVEC.2014.6857548

E. Kowalski, W. Guss, M. Shapiro, R. Temkin

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引用次数: 4

摘要

设计了一种增益为30db、峰值输出功率为300w的94ghz超模耦合腔行波管(TWT)。正在制作一个实验来测试过度模化的行波管。该器件以最小的损耗在TM31模式下工作，并且有选择地将有损耗的AlN介电负载放置在结构中以抑制腔中不需要的模式。在Glidcop中进行了超模耦合腔的冷试验，与仿真结果吻合较好。TWT实验目前正在进行中，使用2.5 kG的螺线管磁铁，2微秒脉冲调制器和自主设计的30 kV皮尔斯电子枪。30kV, 320 mA皮尔斯电子枪的初始电子束测试与米歇尔模拟结果吻合良好，进一步的结果即将到来。

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A 94 GHz overmoded coupled cavity TWT experiment

A 94 GHz overmoded coupled-cavity Traveling Wave Tube (TWT) has been designed with 30 dB of gain and 300 W peak power output. An experiment is being fabricated to test the overmoded TWT. The device operates in the TM31 mode with minimal losses, and a lossy AlN dielectric loading is selectively placed in the structure to suppress unwanted modes in the cavities. A cold test of the overmoded coupled-cavities was machined in Glidcop and agrees well with simulation. The TWT experiment is currently under operation, with a 2.5 kG solenoid magnet, 2 microsecond pulse modulator, and in-house designed 30 kV Pierce electron gun. An initial beam test of the 30kV, 320 mA Pierce electron gun shows good agreement with Michelle simulations, and further results are forthcoming.

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IEEE International Vacuum Electronics Conference. International Vacuum Electronics Conference

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