| Abstract: | A theoretical calculation of the principal parameter in an open coaxial cavity resonator formed by a barrel-shaped outer mirror and a cylindrical inner mirror was carried out. Analytic expressions were derived for the natural frequencies, the positions of the caustics, the field distributions and the ratios of the values of Q for various oscillation mode for 2 d/  1 ( is the wavelength; d is the characteristic dimension of the cavity). The results of numerical calculations allow the geometry of the cavity to be chosen for practical application.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 15, No. 1, pp. 117–125, January, 1972. |
