At present, in a number of radio engineering systems:, such as mobile radio communication systems, personal radio calling, etc., antennas are required with vertical polarization, with respect to the underlying surface, non-directional in the H plane (magnetic plane), or having a predetermined width of the main lobe of the radiation pattern. As such, antennas in the range of metermeters and UHF, vertical linear antenna arrays of vibrator antennas are usually used. A feeder power distribution system is used to supply array radiators. Vibratory antennas are usually narrow-banded, and the feeder power distribution system complicates the design of the antenna. At the same time, the Franklin antenna is known, in which symmetrical array vibrators are excited from each other through short-circuited quarter-wave plumes [1]. This method of power greatly simplifies the design of the antenna. As far as is known, in the literature there is no information about the characteristics and parameters of such an antenna. In this paper, we present the results of numerical simulation of various modifications of the Franklin antenna.