Abstract

The electromagnetic (EM) wave radiation of the C-slot radio frequency identification (RFID) tag located on the impedance surface in this paper is analyzed using the uniform geometrical theory of diffraction (UTD) solution. The UTD radiation solution for the impedance curved surface is employed to predict the EM wave radiation of the RFID tag mounted on the impedance curved product surface. The UTD radiation solution provides the physical insight of the EM field at the observation point and requires less computational time than the other numerical methods. The results show that the UTD radiation solution can accurately predict the radiation pattern of the proposed C-slot RFID tag mounted on the product. The proposed tag antenna can efficiently be applied to the curved surface object, such as the curved metallic product coated with dielectric (layers of paints).

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