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16 February 2009Propagation characteristics of THz radiation in hollow elliptical waveguide
Based on the analytical solutions of the wave equations in the elliptical-cylindrical coordinate system, the propagation
characteristics of hollow elliptical waveguide for THz Radiation are investigated, and then the mode characteristic
equations are also given. Our results show that the mode characteristic equations of a circular waveguide can be treated
as a special case of an elliptic waveguide. The propagation characteristics are numerically simulated depending on the
refractive index of dielectrics films and the eccentricity of the elliptic waveguide. The cutoff wavelengths of guided
modes in the elliptic waveguide are also presented.