Metamaterial Included Slotted Patch Antenna versus Metamaterial Cover over Patch
Surabhi Dwivedi (1), Vivekanand Mishra (1) and Yogesh P. Kosta (2)
1: ECED, S.V.N.I.T., Surat, India & 2: Marwadi Education Foundation's Group of Institutions, Rajkot, India
A metamaterial is introduced into the cover of a patch antenna and its band structure is analyzed. The metamaterial cover with correct selection of the working frequency increases the patch antenna's directivity. Based on the methodology, optimization of structure is proposed for the application of metamaterials as antenna substrate to primarily enhance directivity by minimizing its refractive index. The experimental results are presented thoroughly and compared with the analytic calculations. This paper aims to review and critically discuss the comparison of a metamaterial included patch and metamaterial cover over the patch. An analytical method is used to predict the features of the simulation results, implying that within a certain frequency range, comparison can be made between these two models. The S-parameters as a performance matrix are obtained from antenna simulations carried on CADFEKO Silverlite version 5.5. Simulations have been carried out for different shapes of microstrip patch antenna in the microwave regime in HFSS 13.0.
PIERS, Stockholm, Sweden
2013
August
511 - 513
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