Design of a Wideband and Dual-Polarized CPW-Fed Monopole Antenna for Future 5G Communications

As fast development in communication field, sub-6 GHz spectrum band becomes ultra crowd. Even though Carrier Aggregation (CA) and higher order modulation used, available spectrum is still the bottleneck of communication speed and network latency. Nowadays, more and more companies and institutes are paying more attention to over 6GHz communication system research. Recently released news indicate frequency points are mainly on 12GHz, 15GHz, 28GHz, 38GHz even 70GHz, and accompanied working bandwidth is about 400MHz to 1GHz. As working band goes higher, antenna conceptions will also be updated. A CPW-Fed monopole antenna working in KU-band with more than 20% relative bandwidth is hereby introduced, which might be a good candidate for future 5G cellular networks and also satellite based DBS reception system. Proposed antenna has small profile lower than λg /4 with dual-polarization, which is thus suitable for base station and mobile device conceptions.