The requirements for medium-and long-wave antenna systems imply further improvement of their electrodynamic and structural properties, which is primarily related to the specifics of using this range to provide communication with mobile objects, including surface ships, radio broadcasting, transmit special-purpose signals and other purposes. At the same time, considerable attention is paid to the structures of transmitting antennas, the possibility of reducing their size, reducing mutual influence in a complex electromagnetic environment, and improving the reliability of radio communications. The presented work is devoted to the development of this direction from the point of view of radio engineering.