When wires are closely parallel, the surface current distribution becomes non
uniform. Normal mode helical antenna is choosing in particular in order to study the
effect of surface current distribution along its segmentation from the excitation
segments towards the end of the antenna length. Antenna of different wire
geometries such as wire thickness, and number of turn is designed to analyze
anticipated results. The frequency operating in UHF band frequency spectrum is
choose as a contribution towards widely application nowadays. The surface current
distribution of thin wire antenna is not uniform as well for thick wire antennas. The
difference is that thicker wire antennas results higher amount of current comparing to
thin wire antennas. Higher amount of current of the surface wire antenna produce
better gain and higher magnetic field strength value