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2022-06-06
Quad Element Tree Shaped MIMO Antenna for Ultra-Wide Band Applications
By
Progress In Electromagnetics Research M, Vol. 110, 197-209, 2022
Abstract
A compact and novel quad element MIMO antenna is presented for ultra-wideband (UWB) applications. The proposed orthogonal MIMO antenna comprises four identical elliptical structure-based tree shape microstrip line fed radiating elements. Radiating elements are placed in orthogonal with each other to obtain low mutual coupling and good diversity characteristics among MIMO elements. The proposed MIMO antenna operates from 4.2 GHz-13.2 GHz with an impedance bandwidth (S11 < -10 dB) of 9 GHz. It is investigated at 5.9 GHz DSRC band for vehicular communication applications and X-band for FSS applications. It exhibits superior characteristics with a peak gain of 6.2 dB at 11.7 GHz and radiation efficiency above 80%. To assess diversity performance of the proposed antenna MIMO performance metrics are investigated. Mean effective gain (MEG) < -3 dB, envelope correlation coefficient (ECC) < 0.05, channel capacity loss (CCL) < 0.4 bits/sec/Hz, diversity gain > 9.99, and multiplexing efficiency > -3 dB. Simulation results and experimentally obtained results are in fine agreement.
Citation
Chiranjeevi Reddy Sereddy, and Yalavarthi Usha Devi, "Quad Element Tree Shaped MIMO Antenna for Ultra-Wide Band Applications," Progress In Electromagnetics Research M, Vol. 110, 197-209, 2022.
doi:10.2528/PIERM22040602
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