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Abstract
The dominance of creeping wave mode of the backscattered field from a coated sphere is investigated. The diffracted field is entirely associated with the creeping wave on the coated sphere which consists of infinite number of TE and TM modes. The magnitude of each creeping wave mode is determined by two factors: the attenuation constant and the diffraction coefficient. These two factors are the functions of the size parameters such as the thickness of coating and the radius of the conducting sphere, and the coating material. The contribution of the different creeping wave mode to the total diffracted field is compared and the change of the dominant creeping wave mode with the changes in the thickness of coating is also presented.