Electromagnetic Scattering at the Waveguide Step between Equilateral Triangular Waveguides

Figure 1

(a) Classical circular waveguide, (b) classical rectangular waveguide, (c) equilateral triangular waveguide of this paper, and (d) reference coordinate system used. Conductivity indicates a perfect electric wall boundary condition.

(a)

(b)

(c)

(d)