Abstract
In this paper, we study the influence of periodic inhomogeneity of the surface impedance on the field of an electric dipole located in a waveguide. The inhomogeneity period is assumed to be close to the wavelength of the source in free space. An analytical representation for the field in the waveguide channel is obtained. We estimate the inhomogeneity period for which a mode of a given number is excited most efficiently.
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