ABSTRACT
The problem of loads effect on antennas characteristics has a general nature, but it manifests by different variants. Loads can be concentrated and distributed that is their dimensions may be small and comparable with a wavelength. In radiators with in-phase currents created by connecting capacitive loads into the antenna wire, the input impedance changes substantially. A transparent antenna may be stand an example of using self-complementary structures consisting of several metal and slot radiators. For comparative analysis of antennas made of materials with high and low conductivity, it is necessary to apply methods for solving the corresponding boundary value problems of electrodynamics. To improve the antenna efficiency and matching it with a cable, between them a metal triangle with a base equal to the radiator width was included. Calculation shows that the use of radiators with in-phase linear current distribution makes it possible to significantly decrease the arbitrary loads effect on the antenna characteristics.
