volume | PIER Journals

Abstract

In order to meet antenna requirements for vehicular communication, a compact multiport MIMO antenna design is proposed for the n261 frequency band in 5G millimeter-wave communication. The 3D size of the antenna is 16 × 16 × 17 mm³. By optimizing the radiation patches and layout, a four-port MIMO antenna is developed, with adjacent antenna elements positioned on both sides of the dielectric substrate to minimize coupling between antenna units. Additionally, optimization is performed to achieve 360° radiation coverage for the multiport MIMO antenna. The simulation and measurement results show that the proposed antenna covers the n261 frequency band with an operational bandwidth. The overall isolation between ports of the multiport MIMO antenna is also relatively high. The 12-port MIMO antenna operates in the frequency range of 27.08 to 28.70 GHz, with a gain of 6.25 dBi, and its radiation pattern demonstrates diversity, providing complete 360 ° coverage in both elevation and azimuth planes. Therefore, the proposed antenna not only has a compact size and simple structure but also supports radiation propagation across multiple planes, reducing multipath propagation losses and enhancing communication quality and reliability. It satisfies the requirements of vehicular communication for 5G millimeter wave MIMO antennas.

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Dr. Jingchang Nan

Mr. Licong Fan

Dr. Shuming Liu

Dr. Yifei Wang