| Autor: |
Fangchao Dang, Xiaoping Zhang, Huihuang Zhong, Yangmei Li, Zumin Qi |
| Předmět: |
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| Zdroj: |
Physics of Plasmas; Jun2014, Vol. 21 Issue 6, p1-7, 7p, 3 Diagrams, 1 Chart, 15 Graphs |
| Abstrakt: |
A novel radial line oscillator operating at Ku-band with low guiding magnetic field is proposed in this paper. By using an oversized radial structure, the power handling capacity is enhanced significantly. Based on the small-signal theory, the π/2 mode in radial TM01 mode is selected as the working mode. Furthermore, a radial uniform guiding magnetic field, made up of four solenoids, is designed. As indicated in 2.5-dimensional fully electromagnetic particle-in-cell simulation, high power microwaves with a power of 2.2GW and a frequency of 14.25 GHz are generated with over 40% efficiency when the electron beam voltage is 300 kV, the beam current 18 kA, and the guiding magnetic field is only 0.6 T. There is no angular non-asymmetric mode discovered in three-dimensional simulation. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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