Effect of Eccentricity on Transmission in a Coaxial Bragg Structure

In practice a coaxial Bragg structure always has an eccentricity between the outer-wall and inner-rod axes. Numerical simulations are carried out to analyze the effect of the eccentricity on the transmission in a coaxial Bragg structure. Results demonstrate that the effect of the eccentricity is minimized and becomes negligible when the phase difference between the outer and inner corrugations is π, no matter if the eccentricity is parallel or oblique.