Mathematical Analysis of Rectangular DRA

Abstract

This chapter, mathematical analysis of electromagnetic fields in rectangular dielectric resonator antenna (RDRA) has been introduced. The investigations are based on the first applying waveguide theory, then converting it to resonator by replacing $- \gamma$ to d/dz. Initially, these fields are exploited using the Maxwell curl equations, then manipulating them to express the transverse components of the fields in terms of partial derivatives of the longitudinal components of the fields with respect to x and y axis (i.e., the transverse coordinates). Waveguide models of four rectangular DRAs with specified boundary conditions with linear permittivity have been realized.