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A 4-element MIMO antenna with orthogonal circular polarization for sub-6 GHz 5G cellular applications | SpringerLink
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Compact Broadband Dual-Polarized Antenna for Indoor MIMO Wireless Communication Systems | Semantic Scholar
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Sensors | Free Full-Text | Dual Circularly Polarized Planar Four-Port MIMO Antenna with Wide Axial-Ratio Bandwidth
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