Antenna feed assembly capable of configuring communication ports of an antenna at selected polarizations

An antenna feed assembly for configuring communication ports of an antenna having a fixed communication waveguide in a proper polarization, wherein said assembly comprises:

• an orthogonal mode transducer having a body extending between first and second ends with a first end that is capable of connection to a feedhorn of the antenna and a second end that is capable of connection to the fixed communication waveguide, said transducer further including an opening in said body at a point between said first and second ends;
• a first port in communication with said opening of said body and a second port in communication with said second end of said body, said first and second ports defining respective polarizations that are orthogonal with respect to each other;
• and
• a rotatable coupling connected to said second end of said transducer and configured for connection to the fixed communication waveguide, wherein said rotatable coupling allows said transducer to rotate with respect to the fixed communication waveguide to thereby alter the polarizations defined by said first and second ports while maintaining said first and second port in an orthogonal polarization relationship.

An antenna feed assembly for configuring communication ports of an antenna having a fixed communication waveguide in a proper polarization, wherein said assembly comprises:

• a diplexer having a body extending between first and second ends with a first end that is capable of connection to a feedhorn of the antenna and a second end that is capable of connection to the fixed communication waveguide, said diplexer further including an opening in said body at a point between said first and second ends;
• a first port in communication with said opening of said body of said diplexer and a second port in communication with said second end of said diplexer, said first and second ports having the same polarization with respect to each other;
• and
• a rotatable coupling connected to said second end of said diplexer and for connection to the fixed communication waveguide, wherein said rotatable coupling allows said diplexer to rotate with respect to the fixed communication waveguide to thereby alter the polarizations defined by said first and second ports while maintaining said first and second ports at the same polarization with respect to each other.

An antenna having communication ports with selectable polarizations comprising:

• a reflector for directing signals transmitted to or from the antenna;
• at least one boom arm extending in a forwardly direction from said reflector;
• a feedhorn mounted on said boom arm forwardly of said reflector and directed at the reflector for at least one of receiving and transmitting signals;
• a common waveguide having a body extending longitudinally between first and second ends and an opening in said body at a point between said first and second ends, wherein said first end is operably connected to said feedhorn;
• a first port in communication with said opening of said body of said waveguide and a second port in communication with said second end of said body, wherein said first and second ports define respective polarizations and have a predetermined difference in polarization between each other;
• a fixed waveguide for communication with said feedhorn fixedly connected to said boom arm of said antenna and having a port with a fixed polarization operably connected to said second end of said common waveguide;
• and
• a rotatable coupling operably connected between said second port of said common waveguide and said fixed waveguide, wherein said coupling allows said common waveguide to rotate with respect to said fixed waveguide to thereby alter the polarizations defined by said first and second ports while maintaining the predetermined difference in polarization between said first and second ports.