Electromagnetic propagation into parallel-plate waveguide in the presence of a skew metallic surface

A metallic edge with arbitrary length and inclination is embedded into a coplanar waveguide forming a simple two-port network. The corresponding boundary value problem is rigorously solved by segmenting this perfectly conducting strip into a large number of consecutive pins; the procedure yields robust expressions for the scattering parameters of the device. Interesting properties characterizing its operation are observed through the corresponding diagrams, such as the correlation between different configurations. Additional conclusions have also been drawn from the discussion of the related graphs.