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 results of 3D numerical modeling of a low-voltage compact K-band multibeam generator of monotron type with two different modes of electron beam bunching (bunching only in the first gap or successive bunching in the first and the second gaps) are presented. These results demonstrate that it is possible to achieve a microwave radiation power exceeding 1 kW at a frequency of 18.21 GHz with an accelerating...
The present paper concerns mathematical simulation and experimental study of possibilities of simple design SHF oscillators based on a monothrone and double-gap cavities. Possibility of creation of 30???40% efficiency generators of one-cavity design and 50???60% efficiency generators based on double-cavity generating-amplifying klystrons (GAK) is shown.
The ratios presenting one-dimensional electron motion in the grouping electron current in drift tubes of a generating-amplifying klystron, allowing for operation of forces of a space charge are received.
For acceleration of calculating iterative process to establish the frequency in self-excited oscillator on double-gap cavity the under-relaxation quotient on the voltage is introduced. Optimal values of this quotient for minimum number of interations are determined.
The operation of a double-gab cavity in a mode when a regime of self-oscillation is combined with a mode of speed electron modulation ensuring subsequent grouping of electron bunch is investigated. It is shown a possibility to reach the first harmonic convection current 1.7I0 in gain unit.
There have been experimentally investigated surfaces of substrates for laser gyro mirrors. Surface topographies of the substrates are registered by atomic force microscope. Some surface statistical parameters are analyzed as quantitative criteria of the substrate availability for laser gyro mirrors. Solitary asperities at the surface are characterized by coefficient of kurtosis.
Optimization simulating of the double-gap π-mode resonator's self-oscillator with amplifying stage have been made. Introduction special amplifying stage increase electron efficiency from 51% to 65%.
The numerical procedure and the program for carrying out of mathematical modeling and computing experiment for the purpose investigation probes and a projection of a generating-amplifying klystron are developed. Equations for the generating characteristic, of starting current and beam perveance are yielded. When using the generating section on Π oscillation mode, the calculating efficiency of 65 %...
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.