Abstract
The design of a miniaturized Four-element MIMO antenna system for sub-6 GHz fifth-generation (5G) RF device applications generating different bands and high port isolation properties is presented in this work. The suggested antenna system features a single-band module comprised of four 9-shaped elements positioned perpendicularly; each antenna element in this feature covers the C-band, providing uniqueness as well as good isolation. The total dimension of the main antenna is 38 × 38x1.6 mm3. A single antenna is made up of four radiating elements that are fed via a 50-ohm microstrip feeding line built on the main board. According to the results, the developed MIMO antenna radiates at multiple frequency ranges inside the assigned 5G spectrums, namely 5.0–5.2 GHz, based on impedance bandwidth criterion. It is also revealed that the antenna elements can produce pattern diversity in both frequency ranges. Furthermore, isolation of 32 dB is seen between any two radiating elements. Several MIMO essential performance metrics, including as diversity gain, envelope correlation coefficient, and channel capacity are evaluated. A pattern is created, observed, and the measured and simulated results are found to agree well. Based on its performance characteristics and highest peak gain of 4.8 dBi, the proposed MIMO system can be used in 5G communication networks.
Published Version
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