The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The multispeed electron beams with periodically varying diameter can be used to create a broadband amplifier and generator tubes. The experimental results showed the possibility of transition from generation to gain due to the formation a number of local droops of capacity in pulsating electron beams.
The results of theoretical and experimental study of multispeed electron beams are considered. Efficient methods for the formation of such electron beams are proposed. An overview of the using of multispeed electron beams to generate and amplify microwave signals of different complexity is provided.
There are known sources of broadband noise-like microwave oscillations which have been given the name vircators (virtual cathode oscillators). There are various kinds of both high- and low-voltage vircators1,2. To our mind, there are common principles underlying all of them, first and foremost, using of multiple-velocity electron beams resulting in their turbulization and formation of space-charge...
We consider the results obtained from the theoretical and experimental analyses of intensive multiple-velocity electron beams, space-charge bunches of which are sources of broadband noise-like microwave oscillations. Different concepts of forming such beams are considered. The results of the experimental study of the oscillations generated by the developed laboratory layout of the wideband microwave...
A detailed experimental study of the transition from single-frequency to broadband generation in the laboratory model of low-voltage vircator have carried out. It was established that the transition to the chaotic oscillation transition occurs through a cascade of period doubling bifurcations. Thus, the studied laboratory model of low-voltage vircator is a generator of controllable chaotic oscillations.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.