A Single Port Orthogonally Polarized Antenna for Handsets, IoT Terminals and Vehicles

A broadband resonant antenna has been developed for handsets, vehicles and IoT terminals. It does not use any matching/tuning circuits or extended ground-planes. It can be bent/folded around the narrow sides of the terminal, which allows using efficient MIMO configurations with a high isolation. To significantly reduce the need for spatial diversity MIMO, a single port orthogonally polarized terminal antenna has been developed. It is equally sensitive to two perpendicular polarizations and it also has a good sensitivity to circular polarization, which is important for GPS and satellite phones. So, any two orthogonally polarized MIMO antennas can be replaced by a single port orthogonally polarized antenna. In some applications, such as vehicles, a good MIMO configuration can be obtained by combining a linearly polarized antenna with a single port orthogonally polarized antenna in 2x2 MIMO. It can efficiently receive signals from different directions with different polarization in any complicated environment.