ArticleScientific reports2026
Design and analysis of tetra-port MIMO antenna for next generation vehicular communication.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors.
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Abstract
The demand for advanced automotive applications necessitated the development of 5G/6G multiple-input-multiple-output (MIMO) antennas. This work presents a low-profile antenna resonating at 5.9 GHz, suitable for vehicle-to-vehicle communication applications. The resonance is achieved through the use of a defected ground structure and geometric modifications to the radiator. The single element antenna is converted into a MIMO antenna by employing the elements perpendicular to each other. The unit cell antenna has dimensions of 12 mm × 11 mm, and the MIMO antenna measures 42.44 mm × 43.56 mm. The antenna reflection coefficient has been evaluated and is found to be less than -10 dB across the operating band. The tetra-port MIMO antenna achieves greater than 20 dB isolation without the use of any isolation structures. The proposed antenna shows the gain of 3.8 dBi, and efficiency of 87% at the operating frequency. Diversity parameters are evaluated to better understand the performance of the suggested MIMO antenna. The proposed MIMO antenna exhibits an envelope correlation coefficient below 0.1, a diversity gain above 9.9 dB, a total active reflection coefficient below -10 dB, channel capacity loss below 0.4 bits/s/Hz and MEG ratio is close to unity. When installed in the vehicle, the antenna is unaffected by interference from nearby radiators and the metal body of the car.
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