Novel antenna-based metamaterial structure with Slotted and parastic patches for 5G- sub 6 GHz applications

Abstract

This paper proposes multiband antenna-based Metamaterial for beam splitting and gains improvement. Here, the focus is on developing the smart antenna using a Metamaterial technique for modern wireless applications. The proposed antenna consists the patches, the first one has a square shape placed on a Taconic FR-30 substrate. At the end of the design process, the proposed patch seems U-shaped to ensure the antenna beam is splitting at the desired frequency bands. In addition, the capacitive coupling is used for exciting the second patch, whereas the first patch is excited by conduction with a 50 Ω discrete port. Furthermore, a metasurface layer is designed and mounted on the second patch as a superstrate to increase the antenna gain toward the bore-sight direction. The results show a maximum gain of 8 dBi at 4.2 GHz with maximum dimensions of 280× 280mm2. Moreover, this antenna operates at additional frequency bands (1.9 GHz ,3.3 GHz,3.8 GHz,4, 4.5 GHz and 5.9 GHz), with a minimum reflection coefficient of - 18.5db ,11.1db, -25.2db, -25.2db -17.4 dB and -11.5 dB, respectively. The proposed antenna is designed and analyzed using the CST MWS simulator.