Whispering gallery resonator method for measurementspermittivity

Abstract

The new method of measuring permittivity is described. The measurements are performed using whispering gallery mode open dielectric resonators. The accuracy is assured by applications of the mode matching method. Three resonant modes (HE511, HE611 and HE711) are used in measurement procedure. Accuracy of the method is much better than 0.3% for the relative permittivity having values from 20 to 50.

Keywords

• dielectric resonator
• permittivity
• loss tangent
• measurement method
• whispering gallery modes