Asymptotic boundary conditions analysis of a conducting strips loaded chiral circular cylinder in chiral medium

An analytical solution to study the scattering of electromagnetic plane wave from an infinitely long circular cylinder loaded with conducting helical strips is presented. The region outside the cylinder is occupied by free space/chiral medium. The spacing between the strips is assumed to be negligibly small as compared to incident wavelength. Cylindrical vector wave functions are used to assume the solution in terms of unknowns coefficients. Asymptotic strip boundary conditions are imposed to incorporate the contribution of interface and strips, simultaneously. Numerical results for the scattering echo-width are presented to highlight the effects due to loading the strips on chiral circular cylinder. Reduction in scattering echo-width of strips loaded chiral circular cylinder is useful to reduce the visibility of object at the observation point. Occurrence of same values of co- and cross scattering echo-width of strips loaded chiral cylinder for multiple values of radius may also be considered useful for hiding of object information. Special cases are also discussed for the validation of results.