Optimization of Radiowave Propagation in Ultra High Frequency Band For Ait Port Harcourt Nigeriaop

Year 2022, Volume: 6 Issue: 1, 1 - 11, 30.03.2022

Ilolighata Okoko

Abstract

Viewer dissatisfaction predisposed by attenuated radio waves within propagating paths constitute a major viewers-depopulating factor of competing UHF structured broadcast television stations. This phenomenon often gives rise to viewers switching from stations challenged by attenuation to ones that have mitigated this untoward factor. Consequently, this study examines the dynamics of path loss related attenuation and how best optimization could be achieved in eight specified heights at the Choba axis of our experimental location. The findings revealed higher path loss values at the specified heights of 0.8m, 1.2m and 1.4m, when the Wire-Type Dipole antenna was used at the ground floor level of the one-storey building. Lesser path loss values were recorded at 5m, 5.4m and 5.7m, when both the Wire-Type Dipole and the Yagi antennas were used at the first floor. Negligible, path loss was, however, the case at 6.1 and 6.7m, when the Yagi antenna was exclusively used at the first floor. Thus, giving credence to the fact that optimization could best be achieved in UHF bands where the transmitting and receiving antennas have a fairly unobstructed path between them. Hence, their designation as line-of-sight communication system which peculiar straight line trajectory could as a result of being subject to mediums amenable to refraction still make for enhanced communication.

Keywords

Optimization, UHF Band, Path loss, Radiowave Propagation Model, MATLAB GUI

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