Miniaturized Four Port MIMO Antenna for URLLC and Virtual MIMO Applications

This paper presents a miniaturized four-port MIMO antenna for URLLC and virtual MIMO applications. Virtual MIMO is a novel approach to deploying an energy-efficient sensor network. For networking purposes, this methodology necessitates the use of an omnidirectional, highly efficient, and frequency-sensitive antenna. This article discusses an omnidirectional, polarization mismatch-free, high-gain MIMO antenna. In the antenna module, defected ground structures are used to achieve decoupling of around -40dB between the orthogonal ports. The gain of almost 2.9 dB is achieved having the overall size of the antenna 55× 60 ×1.6 mm
³
. Because of the optimal performance of the discussed MIMO radiator, it is suitable for virtual MIMO-based wireless sensor applications.