Enhanced Design of a Meta‐Surface Embedded Ultra‐Wideband MIMO Antenna with Frequency‐Notched Features
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An improved design of compact metasurface embedded MIMO Monopole antenna in ultra-wideband range is projected for band rejection purpose. Two alike antennas energized by two microstrips are the main part of this MIMO design. Periodic placement of square shaped metamaterial on the radiation plane improves the gain of the antenna. The gain improves significantly compared to normal antenna due to metamaterial. Notch frequency is realized by using L-shapedλ/4 spur line on each feed part .The intended antenna provides reflection coefficient well below -10 dB throughout the UWB range. A peak frequency notch at 5.5 GHz is considered to reject it from 5-6GHz WLAN band. Results achieved from simulation of the fabricated prototype were experimentally verified concerning impedance, gain and radiation characteristics.