论文标题
通过拉伸线方法更新光束耦合阻抗评估
Update of beam coupling impedance evaluation by the stretched-wire method
论文作者
论文摘要
在许多情况下，光束耦合阻抗或唤醒场是由计算机模拟器（例如CST Studio Suite，GDFIDL电磁场模拟器等）计算的。但是，使用拉伸线方法进行评估仍然非常有用，它可以灵活地改变设备的测试配置，获得结果的速度以及在真实设备上的可访问性。实际过程中的缺点之一是通过高频矢量网络分析仪中引入的校准方法，“ 2-X Thru De-exembedding”，克服了Tru-Rflect-Line校准的难度。在这里，该过程进行了详细说明。该方法已成功地应用于J-PARC MR中的RF腔和FX启动测量。
In many cases beam coupling impedances or wake fields are calculated with computer simulator such as CST Studio Suite, GdfidL Electromagnetic Field Simulator and so on. But evaluation with the stretched-wire method is still very useful by its flexibility to the change of the device-under-test configuration, speed to get results and, more than anything, its accessibility on the real devices. One of the drawbacks in the practical procedure, difficulty of Thru-Reflect-Line calibration, is overcome using the calibration method recently introduced in high frequency vector network analyzers, "2-X THRU de-embedding". Here the procedure is explained in detail. The method has been successfully applied to RF cavity and FX kicker measurement in the J-PARC MR.
