• J.PRIYANKA
• ABDUL RAHIMAN SHEIK

Abstract—The ever increasing demand for high data rates drives the wireless communication standards towards incorporation of multi input multi output (MIMO) technology. For such systems, the designed antenna must be compact with low profile configuration, good impedance bandwidth and low mutual coupling. In this paper, a compact two-element microstrip antenna operating from 5.8–10 GHz is proposed for wireless applications. The simulated antenna resonates at 7.5 GHz frequency, with a 10 dB fractional impedance bandwidth of 45.33% and voltage standing wave ratio (VSWR) of 1.15. The mutual coupling is reduced to around 18 dB at the resonant frequency. For the proposed antenna return loss at 7.5 GHz is 23 dB. The antenna system has a radiation efficiency of 110.16% at the center frequency. The performance of the proposed antenna array is better than the existing microstrip antennas in terms of fractional impedance bandwidth and isolation.

Keywords— Micro strip patch antenna, mutual coupling, antenna array, Bandwidth, radiation efficiency, E-shape patch, U- shape patch.

"FOUR ELEMENT ANTENNA ARRAY USING MIMO TECHNOLOGY WITH IMPROVED BANDWIDTH AND ISOLATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 8, page no.546-550, August-2018, Available :http://www.jetir.org/papers/JETIR1808383.pdf

"FOUR ELEMENT ANTENNA ARRAY USING MIMO TECHNOLOGY WITH IMPROVED BANDWIDTH AND ISOLATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 8, page no. pp546-550, August-2018, Available at : http://www.jetir.org/papers/JETIR1808383.pdf