Electromagnetic resonances of free dielectric spheres

Abstract

The last few years have seen the publication of several studies of electromagnetic resonances of free dielectric samples. This is explained by the high Q factar that can be obtained with a little space-factor, when using high dielectric constant materials and a low dissipation factor (tg /spl delta/ ), The resonators used lend themselves to a number of different applications. However their use requires a good knowledge of their spectra and field configuration.