A Novel Electromagnetic Signature Based on RF Identification of Numbers
This paper presents a novel method to identify the numerical digits based on the RF signals. When integrated on dielectric substrate and excited with an electromagnetic wave, every number integrated with metallic strips shows an electromagnetic signature. This signature is unique and characterizes the RCS of the radiating number. Consequently, it could be used for identification purposes. A frequency domain approach was applied to a set of numbers corresponding to the standard numeration. Simulation results obtained with the electromagnetic simulation software CST-MWS® (Computer Simulation Technology-Microwave-studio) are presented and discussed in this paper. The results of this study confirm that the signatures of each number can establish an algorithm for number recognition and identification without errors.
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