Comments on "Improvement in calculation of some surface integrals: application to junction characterization in cavity filter design" [with reply]

The original authors claim to have developed a rigorous method allowing the reduction of a surface integral to a contour integral with application to mode-matching analysis of waveguide junctions. The authors have applied the method to analyze the transition from circular waveguide to rectangular waveguide. This same method has been previously derived in its general form. Some preliminary results on the discontinuity between ridged and rectangular waveguide have been presented. The only original contribution recognized is therefore the application to the analysis of coupling between circular cavities through rectangular irises. The original authors give their reply.<>