Cup waveguide antenna with integrated polarizer and OMT

An antenna, comprising:

• a cylindrical waveguide, said cylindrical waveguide includes:
• a closed end, an open end and a longitudinal axis;
• an interior and an exterior;
• a first pin or port, and a second pin or port;
• said second pin resides in proximity to said closed end of said cylindrical waveguide, said second pin extending radially into said interior of said cylindrical wave guide;
• said first pin of said cylindrical waveguide longitudinally spaced distally apart from said closed end of said cylindrical waveguide, said first pin extending radially into said interior of said cylindrical waveguide;
• said first pin and said second pin residing orthogonally to each other forming a pair of longitudinally spaced apart orthogonal pins;
• a septum intermediate said first pin and said second pin;
• said septum aligned with said first pin within said cylindrical waveguide and residing in proximity thereto;
• a polarization mechanism including six radially oriented screws or ports extending from said exterior to said interior of said waveguide;
• and,
• said polarization mechanism residing between said first pin and said open end of said cylindrical waveguide.

An antenna for communicating left and right hand circularly polarized electromagnetic waves, comprising:

• a cylindrical waveguide, said cylindrical waveguide includes:
• a closed end and an open end;
• an exterior and an interior;
• an orthomode transducer including first and second pins or ports longitudinally spaced apart and oriented orthogonally with respect to each other;
• said second pin extending radially within said waveguide and residing in proximity to said closed end of said cylindrical waveguide;
• said first pin extending radially within said waveguide and longitudinally spaced apart from said second pin and spaced distally with respect to said closed end of said cylindrical waveguide;
• a septum intermediate said first pin and said second pin;
• said septum aligned with said first pin and residing in proximity thereto;
• six radially oriented screws or posts extending from said exterior to said interior of said waveguide, said six radially oriented screws or posts residing between said first pin and said open end of said cylindrical waveguide;
• said screws or posts enable maximized propagation and/or reception of said left hand circularly polarized electromagnetic waves by said first pin;
• and, said screws or posts enables maximized propagation and/or reception of said right hand circularly polarized electromagnetic waves by said second pin.

An antenna, comprising:

• a cylindrical waveguide;
• said cylindrical waveguide includes an open end and a closed end;
• said cylindrical waveguide includes:
• a pair of longitudinally spaced orthogonal ports;
• each of said ports includes a pin extending into said waveguide;
• and, a polarizer;
• a septum residing intermediate said pins and aligned with one of said pins;
• said polarizer resides between one of said pins and said open end of said cylindrical waveguide;
• said polarizer includes six radially oriented screws or posts extending therein;
• three of said six screws or posts are arranged 180° from the other three of said six radially oriented screws or posts;
• three of said screws or posts are arranged at an angle of 45° with respect to one of said pins;
• and, said other three screws or posts of said six radially oriented screws are arranged at an angle of 45° with respect to the other pin.