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Design of Metamaterial Inspired High Gain Patch Antenna
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This paper investigates the single band microstrip antenna loaded with meta-material. The main objective is to enhance the gain and directivity of the conventional microstrip patch antenna operating at X band. The Square SRR is acting as a metamaterial that is designed to exhibit negative properties at 10GHz. The parameters of unit cell metamaterial structure, simulated in CST Microwave Studio 2015, are extracted from S-parameters using Nicholson–Ross–Weir method. A unit cell SRR is iterated in various configurations and employed as an intermediate layer between patch and ground. By inserting a 6×4 array of metamaterial below the patch, it achieves Gain and directivity of 7.9dBi with 100% efficiency. The antenna resonates at 11.8 GHz with -24 dB reflection coefficient and also has good radiation characteristic. Being a high gain antenna resonates at X band, it can be used for satellite applications.
Keywords
Metamaterial, Split Ring Resonators, X Band RADAR, Advanced Design System (ADS).
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