Comments on “An Analytic Series Solution for H-Plane Waveguide T-Junction”

In the above letter, Park and Eom applied a Fourier-transform technique to the analysis of H-plane parallel-plate T-junction. However, the letter has some incomplete relations, and lacking a fundamental theoretical discussion. Moreover, the proposed solution fails to track edge singularities. This comment aims to apply some corrections and demonstrate the deficiency of the proposed solution.