Molded orthomode transducer

A bend-twist transition section of a waveguide, the bend-twist transition section comprising:

• a horizontal channel portion and a horizontal transition portion;
• a vertical channel portion and a vertical transition portion;
• a common bisecting plane of the horizontal and vertical channel portions formed by a connection-edge plane in the waveguide;
• wherein the bend-twist transition section is configured to communicate a signal between the horizontal channel portion and the vertical channel portion;
• and
• wherein the bend-twist transition section is configured to change a geometrical orientation of an electric field of the signal by 90 degrees and change a direction of the signal by 90 degrees;
• each of the vertical transition portion and the horizontal transition portion comprises a top half and a bottom half;
• wherein the bottom half of the horizontal transition portion becomes deeper towards the intersection of the vertical and horizontal transition portions;
• wherein the top half of the horizontal transition portion becomes shallower towards the intersection of vertical and horizontal transition portions;
• and
• wherein the vertical transition portion narrows from the vertical channel portion towards the intersection of the vertical and horizontal transition portions.

An orthomode transducer (OMT) comprising:

• a common port configured to support a first frequency band segment and a second frequency band segment and configured to support two polarizations of operation;
• a common waveguide channel along a central axis of the common port;
• a first junction and a second junction located along the common waveguide channel, wherein the first junction and the second junction are orthogonal to each other;
• a third junction and a fourth junction located along the common waveguide channel, wherein the third junction and the fourth junction are orthogonal to each other;
• wherein the first junction, the third junction and the fourth junction are all connected to the common waveguide channel in a common plane, and wherein the second junction is connected to the common waveguide channel in a plane orthogonal to the common plane;
• a crossover component connected to the common waveguide channel at the second junction, wherein the crossover component is configured to connect the common waveguide channel to a second waveguide channel;
• a first waveguide channel in the common plane, wherein the first junction is associated with the first waveguide channel;
• wherein the second waveguide channel is in the common plane, and wherein the second junction is associated with the second waveguide channel;
• a third waveguide channel in the common plane, wherein the third junction is associated with the third waveguide channel;
• and
• a fourth waveguide channel in the common plane, wherein the fourth junction is associated with the fourth waveguide channel.