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射频输入耦合器将由矩形波导传入的325 MHz,2.5 MW高功率射频信号馈入漂移管直线加速结构腔体内,并通过耦合结构参数调整,实现强束流负载的匹配耦合。射频输入耦合器的输入采用WR2300矩形波导,输出采用CX120同轴波导,由交叉棒型矩形波导同轴过渡结构完成信号转换。同时在同轴波导内增加陶瓷窗,确保射频信号传输和漂移管直线加速结构腔体内的超高真空。采用可调整的同轴耦合环与漂移管直线加速结构腔体进行耦合,适应强
The RF input coupler feeds the 325 MHz, 2.5 MW high-power RF signal from the rectangular waveguide into the drift tube linear acceleration structure and adjusts the coupling structure parameters to realize the matched coupling of the strong beam load. RF input coupler input using WR2300 rectangular waveguide, the output coaxial waveguide using CX120 by cross-rod rectangular waveguide coaxial transition structure to complete the signal conversion. At the same time in the coaxial waveguide to increase the ceramic window to ensure that the RF signal transmission and drift tube linear acceleration chamber ultra-high vacuum. Using adjustable coaxial coupling ring and drift tube linear acceleration structure cavity coupling, strong adaptability