Scattering of a Width-Modulated Microstrip Line for an Arbitrary Angle of Incidence

A parametric study of the scattering of an electromagnetic wave from a recently introduced, periodic, width-modulated microstrip line for arbitrary, i.e. normal and oblique, incidence is presented. The relationship between the analytically known dispersion characteristics (for grazing incidence) and the reflectivity of the structure is investigated for different values of the modulation constant and the incidence angle. The present study, carried out around the first stop band of the surface wave propagation, mainly aims to demonstrate the possibility of reduced virtual prototyping time of the geometry, when it's designed as a reflectarray element.

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