Abstract
Metamaterials have got a unique identification in the field of electromagnetic. Left handed metamaterials have been recognized through its working at high frequencies with larger bandwidth in antenna design. The author has proposed a multi substrates LH metamaterials with an array of split triangular antennas for wideband as well as for larger bandwidth. FR4 is being used at frequency 42 - 26 GHz with thickness of 3 mm for substrate and matching circuit is inserted to get high gain with minimum reflections. The number of rods in PBG is 100, which is found to get high return losses and ideal behavior of VSWR. Obtained results have been in good agreement such as S11 is approximately ﹣30 dB, VSWR 1.8 dB and the bandwidth enhancement is 2 GHz at frequency 5 GHz. All results are plotted using commercial software CST microwave studio (Version 2012) and MATLAB.
Highlights
Growing demand of bandwidth has increased an interest in antenna fields to fit into new era of wireless communication
Comparative analysis has been performed between metamaterial and photonoc band gap (PBG) based structure for frequency approximately 44 GHz and results related to this work are properly shown using commercial software CST microwave studio
For metamaterial based antenna design, array of inverted U has been taken to check the compatibility with 5G advance cellular system technology
Summary
Growing demand of bandwidth has increased an interest in antenna fields to fit into new era of wireless communication. From large size antennas to very thin and slick antennas, they have been developed according to need and users requirement. Patch antennas played an important role in communication through wireless connections [1]. The variations in parameters of patch antennas have been significant and characteristics of antenna miniaturization have been developed and planted to improve the radiation properties. One technique, used to reduce the size of antenna is metamaterials based antennas.
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