Analysis of the Electromagnetic Characteristics of Open Resonators Formed by a Multifocus Spherical Mirror and a Plane Mirror When the Wavelength is 1 mm

Abstract

The possibility of using modern program complexes for the analysis of electromagnetic fields in a double-mirror open resonator (OR) with a focusing mirror of a complex form including an OR of an orotron in the submillimeter wavelength range is considered. The values of resonance frequencies and the distribution of the fields of the fundamental oscillation type in the OR with a focusing five-focus spherical mirror are obtained with the use of the CST Studio Suite and HFSS Ansoft program complexes. In addition, more accurate values of the Q-factor and stored energy in such ORs with the single- and double-row periodic structures on a plane mirror are obtained. Therefore, the values of the electron efficiency of an orotron can be calculated more reliably.