Electrodynamic properties of coupled quasi-optical open cavities in sources of millimeter radiation

The results of experimental studies of electrodynamic properties of coupled open millimeter-range cavities are presented. Cavities of the considered type can be employed in such electron devices as an orotron and an oscillator of diffraction radiation. It is demonstrated that a system of two open cavities coupled through strip diffraction gratings is best suited for the broadening of the transmission band of an open cavity system, allowing, at the same time, the Q factor to be sustained at a high level. The transmission band of such a system is five times broader than the transmission band of open cavities placed in series with respect to a distributed source emitting volume waves. Practical schemes of electron devices using coupled open cavities are described and analyzed. The results of experimental studies of some of these devices in the millimeter wavelength range are presented. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/391