An efficient volume integral equation technique for the analysis of tapered dielectric rod antennas

A computationally efficient method for the analysis of tapered dielectric rod antennas is presented. The method combines the so-called local mode theory with the method of moments. Radiation patterns for dielectric rod antennas of varying radius and different taper profiles are presented. The method is validated by comparison with the data obtained from a surface integral equation technique. Moreover, it is demonstrated that the method is applicable for different types of excitations.