A Multi-band MIMO Antenna with Full Coverage

In this paper, a compact multi-band MIMO antenna design is proposed for three-dimensional full coverage. The antenna is composed of three elements which are positioned on the oblique surfaces of a polyhedron. Using slanted multiple elements, the antenna is able to provide an omni-directional coverage in both the azimuth and elevation planes. The antenna operates over multiple frequency bands, which include the 2.4–2.5 GHz, 4.94–4.99 GHz (FCC Public Safety band), 5.15–5.35 GHz, 5.47–5.725 GHz, 5.725–5.875 GHz bands, with good impedance matching of |S11|≤ −10 dB, isolation of more than 15 dB as well as stable radiation patterns.