| Autor: |
V. M. Pikunov, V. E. Rodyakin, A. N. Bogolyubov, M. I. Svetkin |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
2017 Progress In Electromagnetics Research Symposium - Spring (PIERS). |
| DOI: |
10.1109/piers.2017.8262217 |
| Popis: |
We present the results of detailed numerical investigation of the influence of RF field radial non-uniformity in the cavities on the bunching process and efficiency of multiple-beam klystrons. 2.5-D nonlinear PIC computer code “Arsenal-MSU” [1,2] was used for detailed parallel numerical simulation of bunching process in the non-identical electron beams, passing through multi-beam cavities with different RF field distributions and R/Q values. Results of numerical investigations have been compared with experimental data for two broadband multiple-beam klystrons KL4113 and KS4116 developed and fabricated in IECAS (China) [3,4]. It was discovered strong influence of RF fields radial non-uniformity on the klystron efficiency and bandwidth for some multi-beam cavities designs. For example for KS4116 tube the R/Q difference in 20%–25% between two radial layers of the beams caused phase separation of electrons in different layers and 10%–15% efficiency reduction. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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