caa a22 4500 445305347 CHVBK 20180317142611.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10762-011-9831-4 doi (NATIONALLICENCE)springer-10.1007/s10762-011-9831-4 Study on Nonlinear Theory and Code of Beam-Wave Interaction for Gyroklystron [Elektronische Daten] [Guo Jianhua, Yu Sheng, Li Xiang, Li Hongfu] A nonlinear self-consistent theory of beam-wave interaction for gyroklystron with multiple cavities is analyzed in this paper. The electron motion equations and transient electromagnetic field equations in a complex form are deduced in detail. A calculation code including a time-dependent description of the electromagnetic fields and a self-consistent analysis of the electrons is designed and the corresponding software implementation is achieved using Fortran language. An example is presented for the operation of the code, namely a four-cavity, Ka-band gyroklystron operating in the TE011 mode at the fundamental of the cyclotron frequency. The numerical results show that a maximal saturated peak output power of 330kW, corresponding to 39% efficiency and a saturated 3-dB bandwidth of 325MHz is achieved with a 72.8kv, 11.8 A electron beam at a focused magnetic field of 13kG and a beam velocity ratio of 1.63 when the speed spread is 5%. By comparison, the numerical results agree with the experimental results. Springer Science+Business Media, LLC, 2011 Gyroklystron nationallicence Beam-wave interaction nationallicence Nonlinear theory nationallicence Jianhua Guo Research Institute of High Energy Electronics University of Electronic Science and Technology of China, 610054, Chengdu, China aut Sheng Yu Research Institute of High Energy Electronics University of Electronic Science and Technology of China, 610054, Chengdu, China aut Xiang Li Research Institute of High Energy Electronics University of Electronic Science and Technology of China, 610054, Chengdu, China aut Hongfu Li Research Institute of High Energy Electronics University of Electronic Science and Technology of China, 610054, Chengdu, China aut Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/12(2011-12-01), 1382-1393 1866-6892 32:12<1382 2011 32 10762 https://doi.org/10.1007/s10762-011-9831-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10762-011-9831-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jianhua Guo Research Institute of High Energy Electronics University of Electronic Science and Technology of China, 610054, Chengdu, China aut NATIONALLICENCE 700 1- Sheng Yu Research Institute of High Energy Electronics University of Electronic Science and Technology of China, 610054, Chengdu, China aut NATIONALLICENCE 700 1- Xiang Li Research Institute of High Energy Electronics University of Electronic Science and Technology of China, 610054, Chengdu, China aut NATIONALLICENCE 700 1- Hongfu Li Research Institute of High Energy Electronics University of Electronic Science and Technology of China, 610054, Chengdu, China aut NATIONALLICENCE 773 0- Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/12(2011-12-01), 1382-1393 1866-6892 32:12<1382 2011 32 10762 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer