High Isolated MIMO Antenna for WLAN Applications

Abstract

This paper presents a compact multiple-inputs multiple-outputs (MIMO) antenna for wireless local area network (WLAN) applications. The proposed four-port MIMO antenna has been incorporated with its four identical elements having dimensions of 10[Formula: see text]mm [Formula: see text] 12[Formula: see text]mm each. The MIMO antenna is designed to operate in the range of 5.17–6.25[Formula: see text]GHz frequency band having impedance bandwidth of 18.91%. The antenna is fabricated on a glass epoxy FR-4 substrate having a thickness of 0.8[Formula: see text]mm for measurement and validation. The measured results show that the antenna has good isolation greater than [Formula: see text]17[Formula: see text]dB to [Formula: see text]25[Formula: see text]dB, better impedance matching and envelope correlation coefficient (ECC) below 0.03 over the entire band of operation. The proposed MIMO antenna is a potential candidate for WLAN applications.