Introduction of an effective waveguide width in transmission/reflection methods for dielectric measurements

Analysis and design of post-wall waveguides for applications in SIW

“…If the post-walls are highly reflective, their planes of reflection can be thought of as two effective planes that coincide with the rectangular waveguide walls. We note that the concept of effective width is not necessarily limited to the characterization of PWWGs: in [67] the effective width is used to improve the measurement accuracy for imperfectly rectangular waveguides. We can calculate the effective width of a PWWG from the propagation constant k z of the dominant mode.…”

“…Thus, w and v exc add to each ϕ ∈ [−π, π] the tangential components of the currents and excitation fields of the posts. Then, we can interpret the boundary condition as the operator equation 67) where the pth component of Zw is defined by Figure 2.5 -Notation and symbols in a multiple post geometry as used in the integral formulation.…”