Abstract
In this paper a new planar metamaterial structure that looks like semi-horse shoe in shape (SSHSS) is designed and simulated. Theoretical analysis of proposed structure done using equivalent circuit theory. Medium effective parameters are extracted using modified NRW approach which proved the metamaterial property of the new unit cell. Radiation pattern, directivity and gain of the new structure were illustrated which gives the possibility of using SSHSS as the antenna. Proposed structure shows multiband characteristics. This antenna shows high directivity (7.92 dBi, 7.86 dBi, 10.11 dBi) and moderate gain (2.55 dBi, 3.90 dBi, 5.07 dBi) at 5.83 GHz, 8.41 GHz, 10.68 GHz respectively. RT duroid is used for fabrication of prototype of the proposed structure. This new structure can be used as metamaterial inspired antenna as well as normal patch antenna. Experimental results shows good agreement with simulated and theoretical results.The proposed structure has been simulated using IE3D electromagnetic simulator.
Highlights
Artificial Metamaterials were first proposed by Prof
Pattern & frequency reconfiguration is possible by loading of these new structures to conventional patch antennas
Gain of patch antenna improved by using CSRR in ground plane in [5]
Summary
Artificial Metamaterials were first proposed by Prof. In early decade of metamaterial discovery researcher focuses on realization of these periodic structures. They are looking for use of these artificial materials in present day communication devices. Pattern & frequency reconfiguration is possible by loading of these new structures to conventional patch antennas. A large variety of Split ring Resonator (SRR) design were designed so far after first unit cell proposed by J. Gain of patch antenna improved by using CSRR in ground plane in [5]. M.S. Sharawi et al in [6] proposed a new compact antenna for MIMO having good isolation between elements using CSRR in ground plane.
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