Antennas on Dielectric Resonators

The problems of scattering of electromagnetic waves of a transmission line on a system of coupled DRs also located in open space are considered. Such structures, optimized for field distribution in the wave zone, as well as matched with the supply transmission line; perform the functions of resonant-type antennas. Several classes of antenna arrays, linear, planar and 3-dimensional, are considered. Using the developed theory, the main parameters of the antennas were calculated—radiation patterns, frequency characteristics of the reflection coefficients from the side of the supply line, depending on the excitation methods, location and geometric dimensions of the resonators. The parameters of new elements, lattices of coupled DRs, placed simultaneously in transmission lines and open space, combining functions of antennas and bandpass filters are considered. It is shown that simultaneous optimization of the scattering parameters of antenna filters allows one to obtain significantly better frequency scattering characteristics.