Higher-order mode absorption measurement of X-band choke-mode cavities in a radial line structure

作者：Zha, Hao; Shi, Jiaru^*; Wu, Xiaowei; Chen, Huaibi

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2016, 814: 90-95.

DOI：10.1016/j.nima.2016.01.047

• X-band
• Choke-mode
• HOM suppression
• RF calibration
• RF load

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.

• 出版日期2016-4-1
• 单位清华大学