Analysis of a Three - Quarter Wavelength Antenna Array for UHF Satellite Communication Band

This paper presents the characterization of an antenna array containing two radiant elements, each element having three quarters of wavelength and posted on the same ground plane. Over a metallic and wide enough mesh ground plane, the three-quarter wavelength element outperforms the widely used quarter wavelength antenna configuration at medium elevation angles and at low elevations has equal, including a better gain. The antenna array has been designed and developed for the satellite frequency band between 420 and 440 MHz, allocated to multiple applications. The comparison between the two configurations, the results of the simulations and experimental measurements are presented in this paper emphasizing the advantages of the developed array.