Small Wireless Module Consisting of Two Highly Isolated MIMO PIFAs

(Multi-input Multi-output)MIMO technology employs multiple antennas to send and receive signals. Using the MIMO technology, we obtain more data than that using traditional single antennas. Evaluating performance of dual transmitter, isolation in multiple antennas is an important parameter. The coupling effect in MIMO antennas will not only affect the characteristics of the antenna itself, but also the pattern, which will be compressed. In this paper, the PIFA = 1/4λ wavelength is used and realize the miniaturization of the antenna body and the PIFA architecture is beneficial to current distribution, that direct improve the isolation to − 20dB. In this paper, we propose two wide band and high isolation small PIFAs printed on 5G module to cover the 5 GHz ISM band. The module dimensions is 40 mm × 30 mm, antenna area dimensions is 7 mm × 30 mm and has a 100% available wide bandwidth in the range of 5.5 GHz to 6.5 GHz