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Design of metallic reflectarray antenna and its radiation discrepancy due to the manufacture distortion at mmW

This paper presents the numerical design of a metallic reflectarray antenna at millimeter waves and investigates the radiation discrepancy due to the manufacture distortion. The metallic elements are convex and exhibit linear phase variation with respect to its height and frequency, and may provide a broader bandwidth in the composition of reflectarray antenna. The antenna is investigated at mmW. The radiation discrepancy due to the manufacture distortion is also studied and presented in this paper.