Full-scale Investigation of a Dielectric Conical Antenna Small Perturbation

Abstract

This article is based on the conclusion that the observability of small perturbations of an electrodynamic system may be a priori estimated at the stage of finite element mesh optimization. In this paper, an attempt has been made to generalize the formulation of the problem using mathematical perturbation theory, electrodynamic Mie theory, Rayleigh scattering, and computational methods of electrodynamics. In this work, we consider a certain calibration element, which is a sphere for which there is reliable solution, and on which we may check the hypothesis and requirements regarding the considered problem. Developed specific rules for objects decomposition into a computational mesh and its a priori control for conducting accurate modeling. Validation of the optimization technique was carried out by comparing the numerical data and experimental data. The objects of study are thin metal plate and metal spheres. The electrodynamic system is a well-studied conical dielectric antenna.