Patent ID: 7397323

Claim:
A waveguide orthomode transducer, comprising: in a first layer: a turnstile junction having a main waveguide and four waveguide ports; four hybrid tees each respectively having an e-port, two opposed side-ports, and an h-port; and wherein said hybrid tees are ring-arranged around said turnstile junction such that said waveguide ports each communicate with said h-port of one said hybrid tee, such that adjacent said hybrid tees communicate with each other via their respective said side-ports, and such that said e-ports of said hybrid tees form two sets of opposed e-ports; in a second layer: two h-plane power dividers/combiners each respectively having an axial-port and two opposed side-ports; and wherein said h-plane power dividers/combiners are each arranged such that their respective said side-ports communicate with different ones of said two sets of opposed e-ports and such that said axial-ports of said h-plane power dividers/combiners are polarization ports, thereby permitting a single radio frequency signal including two orthogonally polarized modes to enter the transducer at said main waveguide and exit the transducer separated at said polarization ports or permitting two radio frequency signals each including a different orthogonally polarized mode to enter the transducer at a respective said polarization port and exit the transducer combined at said main waveguide.