Microwave Link Design between Jimma Main Campus and Agaro Branch

Abstract

Microwaves are widely used for point to point communications, because their small wavelength allows conveniently-sized antennas to direct them in narrow beams, which can be pointed directly at the receiving antenna. This allows nearby microwave equipment to use the same frequencies without interfering with each other. The aim of the thesis was to provide microwave radio link operating at microwave frequencies Jimma main and Agaro campuses, with the minimum objective reliability 99.999%. The designed link depends on Geo context-profiler for path profile analysis, Feko suite 5.5 for rectangular waveguide design, and link budget calculator. In the analysis there are parameters, which are significant in design of microwave link establishment: free space loss calculation, path profile analysis, fade margin, frequency planning, attenuation, rain fading predictions, reflection points calculation, , tower heights, Signal to Noise Ratio, Fresnel zone and link budget calculation. Fresnel zone clearance was considered at least at 60% of the first Fresnel zone