Gain enhancement of patch antenna integrated with metamaterial inspired superstrate
Saravanan M., Beslin Geo V., Umarani S.M.
Journal of Electrical Systems and Information Technology · 2018
doi:10.1016/j.jesit.2018.04.002 (opens in a new tab)
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Abstract
The paper investigates single band planar resonant antenna inspired by phi-shaped slotted metamaterial superstrate and a square patch antenna is used as a primary radiator. The antenna is modeled using finite difference time domain method and resonates at S band. The antenna comprises of single layer symmetrical metamaterial superstrate which is used to suppress surface waves based on μ-negative characteristics. The effective material parameters of the metamaterial structure are extracted from S-parameters using Nicholson–Ross–Weir method. The antenna achieves −28.64 dB reflection coefficient of 2.4 GHz and also maintains good radiation characteristics with a peak measured gain of 7.94 dB at its operating frequency. Due to its advantages, the antenna can be used for modern wireless communications. Keywords: Patch antenna, Metamaterials, Nicholson–Ross–Weir method, Radiation pattern, Surface waves
Abstract licence: CC BY-NC-ND
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