Conical-Pattern Circular Dielectric Thin Disk Antenna Analyzed Using Generalized Boundary Condition and Dual Integral Equations

Considered is accurate numerical modeling of the axially symmetric radiation of a thin circular dielectric disk antenna. Two-side Generalized Boundary Condition (GBC) is used to exclude the internal field from consideration. Analysis is based on the Method of Analytical Preconditioning (MAP) that is regularization via Galerkin projection on the set of orthogonal eigenfunctions of the singular part of the full-wave problem. This guarantees the convergence of the algorithm. Numerical results demonstrate the disk resonances and the effect of losses and transparency on the fundamental radiation characteristics.