INVESTIGATIONS INTO THE MECHANISMS FOR “COLD” TRIGGERING OF SECONDARY ELECTRON-EMISSION CATHODE MAGNETRONS
N.I. Avtonomov, D.M. Vavriv, & S.V. Sosnitsky
Institute of Radio Astronomy, National Academy of Sciences of Ukraine
4, Krasnoznamennaya St., Kharkiv 61002, Ukraine
Address all correspondence to N.I. Avtonomov E-mail: avtomat@rian.kharkov.ua
Abstract
The mechanisms for excitation of auto oscillations in magnetrons with secondary-emission cathode with no use of an auxiliary thermionic cathode have been theoretically analyzed. The process of setting up self-excited oscillations with an external microwave (MW) signal and using a modulated anode voltage pulse have been examined. The conditions under which the above mechanisms for exciting self-excited oscillations are defined. The results of the comparison between the numerical simulation and the experimental data obtained for mm-wave magnetrons are presented.
KEY WORDS:magnetron, cold triggering, life time
References
- Cherenshchikov, S.A., (1979), On triggering of magnetron with cold cathode at the voltage pulse drop, Elektronnaya tekhn. Elektronika SVCh. 6:20-28 (in Russian).
- Naumenko, V.D. and Cherenshchikov, S.A., (1984), Investigation into triggering of magnetron with cold secondary-electron emission cathode at the voltage pulse drop, Izv. VUZov. Radiofizika. 27(2):250-256 (in Russian).
- Volkolupov, Yu.Ya., Dovbnya, A.N. et al., (2002), Rapid formation of an electron beam in a magnetron gun with secondary-emission cathode, Zhurnal Tekhn. Fiziki. 72(10):124-127 (in Russian).
- Vigdorchik, I.M., Myand, V.A., and Naumenko, V.D., (1970), Study on the operation of magnetrons with cold platinum cathode in triggering with an external signal, Trudy IRE NANU. 18:33-45 (in Russian).
- Skowron, J.F., (1973), The continuous-cathode (emitting-sole) crossed-field amplifiers, Proc. of the IEEE. 61(3):339-371.
- White, R.A., (1963), Cold cathode operation of a hot cathode magnetron, IEEE Transactions on electron devices. ED-10(1):59-61.
- White, R.A., (1963), More information on the cold cathode operation of a hot cathode magnetron, IEEE Transactions on electron devices. ED-10(2):96-97.
- Lomakin, V.M. and Panchenko, L.V., (1970), On the self-excitation of a pulse magnetron at low values of initial cathode emission (cold self-excitation), Elektronnaya tekhn. Elektronika SVCh. 2:33-42 (in Russian).
- Bondarenko, B.V. and Akopyan, R.L., (1972), Calculated of emission film-coated autocathodes, Radiotekhnika and Elektronika. 17(5):1059-1061 (in Russian).
- Volkolupov, Yu.Ya., Dovbnya, A.N., Zakutin, V.V. et al., (2001), Generation of electron beams in a magnetron diode with secondary-emission cathode, Zhurnal Tekhn. Fiziki. 71(2):98-104 (in Russian).
- Schunemann, K., Sosnytsky, S.V., and Vavriv, D.M., (2000), Mathematical model of spatial-harmonic magnetrons with cold secondary-emission cathode, Radiofizika and Radioastronomiya. 5(2):171-181 (in Russian).
- Kasatkin, L.V., Rukin, V.P., Yeryomka, V.D. et al., (2007), MM-wave electron devices, CryMiKo, Sevastopol, p.252 (in Russian).
- Soin, A.V., (2003), Excitation of oscillations in magnetrons with secondary-emission cathode using the external microwave signal, Radiofizika and Radioastronomiya. 8(3):313-316 (in Russian).
- Malyugin, V.I. and Sominsky, G.G., (1970), Investigation of ionic bombardment of cathodes in an amplitron, Elektronnaya tekhn. Elektronika SVCh. 10:113-117 (in Russian).
|
|