Abstract
In order to conform mobile base station antenna simply for the next generation mobile system (5G), a cylindrical lens antenna is developing. For the lens material, negative refractive index is used so as to reduce lens thickness. In this paper, relations of lens parameters and lens shapes are investigated. Design parameters for achieving practical thin lens shapes are clarified. Moreover, lens shaping accuracies are investigated through checking the refractive angles or ray paths on lens surfaces. All refractive angle results agree very well with the theoretical value. Adequateness of lens shaping results is ensured.
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