Piltyay S. Wideband coherent orthomode transducers based on coaxial ridged structures

An actual scientific and engineering problem of the development of high performance wideband coherent orthomode transducers for dual-band coaxial feed transducing units of reflector antennas with polarization signal processing has been solved in the dissertation. The theoretical part is devoted to the solution of boundary electrodynamics problem for the eigenmodes of sectoral coaxial ridged waveguides and coaxial quad-ridged waveguides using the system of orthogonal basis functions, which correctly take into account the singular field behavior near ridges. Two designs of wideband coherent orthomode transducers based on coaxial ridged structures has been developed. They are designed for the implementation in dual-band (С/Ku) dual-polarized feed transducing units for reflector antennas of earth stations of satellite information systems.