Higher‐order mode absorption measurement of X-band choke-mode cavities in a radial line structure
Higher‐order mode absorption measurement of X-band choke-mode cavities in a radial line structure
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DOI：
10.1016/j.nima.2016.01.047
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发表时间：
2016-01
影响因子：
1.4
通讯作者：
H. Zha;Jiaru Shi;Xiaowei Wu;Huaibi Chen
中科院分区：
文献类型：
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作者：
H. Zha;Jiaru Shi;Xiaowei Wu;Huaibi Chen
利用矢量网络分析仪(VNA)研究了X波段扼流圈结构的高阶模式抑制问题。建立了特定的径向线盘来测试相应的阻尼力和不同的阻尼器几何形状对反射的影响。通过一种特殊的多短负载校准方法，对径向线与矢量网络分析仪之间的失配进行了校准。不同扼流圈几何形状的实测反射率与理论计算结果吻合较好，验证了各种几何设计的霍姆吸收特性。
An experiment is presented to study the higher-order mode (HOM) suppression of X-band choke-mode structures with a vector network analyzer (VNA). Specific radial line disks were built to test the reflection from the corresponding damping load and different choke geometries. The mismatch between the radial lines and the VNA was calibrated through a special multi-short-load calibration method. The measured reflections of different choke geometries showed good agreement with the theoretical calculations and verified the HOM absorption feature of each geometric design.