The Utilization of Degenerate Modes in a Spherical Cavity

Abstract

A general expression is given for calculation of the coupling coefficients between an arbitrary number of modes simultaneously excited in a cavity resonator. The mechanism of energy conversion between modes is discussed for several practical coupling devices. The technique is applied to the unlimited numbers of degeneracies available in spherical geometry and is shown to offer many interesting possibilities. An experimental model of a spherical cavity is described and shown to demonstrate the theory.