Additional examples are adjusted to the entries in an automated way - we cannot guarantee that they are correct.
It is also worth noting that the Kustom units, occasionally found as surplus, have an unusual waveguide junction which results in transmission with one sense of circular polarization and reception on the other sense.
These theoretical procedures are then used in the design of practical and useful devices suxch as microstrip planar patch components couplers and power dividers, planar patch antennas and waveguide junctions.