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High efficiency coupling of radio frequency beams from the dual frequency gyrotron with a corrugated waveguide transmission system

机译:来自双频回旋管的射频束与波纹波导传输系统的高效耦合

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High efficiency coupling of the millimeter-wave output of the dual-frequency gyrotron with the transmission line was demonstrated. The dual-frequency gyrotron was design to produce similar beam profiles for two operation frequencies (170 GHz and 137 GHz). Using two RF beam reflecting mirrors in a matching optics unit (MOU), which are designed to transform the beam profile of the gyrotron output to the fundamental waveguide mode (HE11 mode) at 170 GHz, high efficiency coupling was demonstrated for two frequencies. The measured mode purity of HE11 mode was 96% at 170 GHz and 94% at 137 GHz operations with the identical mirrors at the fixed mirror position and angle. The results indicate that the significantly simple dual frequency system is realized by the gyrotron designed to output the similar beam profiles at different frequency operation.
机译:演示了双频回旋管的毫米波输出与传输线的高效耦合。设计了双频回旋管,以针对两个工作频率(170 GHz和137 GHz)产生相似的光束轮廓。在匹配光学单元(MOU)中使用两个RF光束反射镜,其设计用于将回旋加速器输出的光束轮廓转换为170 GHz的基本波导模式(HE 11 模式),高效证明了两个频率的耦合。在固定的反射镜位置和角度下,使用相同的反射镜,在170 GHz下测得的HE 11 模式的模式纯度为96%,在137 GHz下为94%。结果表明,通过设计在不同频率操作下输出相似光束轮廓的陀螺仪可以实现非常简单的双频系统。

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