MODELING OVER-HORIZON ANTENNA USING FEKO
The paper show step-by-step calculation of umbrella antenna, located on the ground surface, and designed to create an over-horizon radar antenna. With the help of the electrodynamic program FEKO, are obtained condition matching the antenna with the generator, calculate the efficiency of the antenna and its dependence on the ground conductivity. Also the calculation of the voltage distribution between the antenna braces and the ground is performed.