Abstract
A Compact U-shaped multiple-inputs and multiple-output (MIMO)-antenna with dimensions of 23 × 47 mm2 has been proposed for ultra-wide-band (UWB) portable-device applications and satellite communication applications operating over a 141% fractional bandwidth (3.1 to 18 GHz) at –10 dB impedance matching. The radiators are placed perpendicular (90 degrees) to each other to obtain low correlation (high isolation) between the ports. The characteristics of the antenna are studied on the basis of isolation, bandwidth, radiation patterns, envelope correlation coefficient, and diversity gain and total efficiency. Quad elements MIMO-structure has been considered for higher channel capacity operations. The simulation and measurement results are presented, and it shows that the impedance bandwidth is more than UWB range with high isolation and better diversity performance. It is found to be more suitable for portable-device applications and satellite communications when compared to the available designs.
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ACKNOWLEDGMENTS
Authors are thankful to Prof. K.J. Vinoy, IISc Bangalore, India for providing valuable suggestions. VNA based measurements and anechoic chamber facility available at VIT Chennai campus have been used for this work.
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Kareemulla, S., Kumar, V. Compact MIMO-Antenna with Enhanced Isolation for Ultra-Wide-Band and Ku-Band Applications. J. Commun. Technol. Electron. 67, 56–62 (2022). https://doi.org/10.1134/S1064226922010053
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DOI: https://doi.org/10.1134/S1064226922010053