Wideband Rotman Lens Beamforming Technique for 5G Wireless Applications

This paper presents the design, simulation and measurement results for a beam steerable system, which covers the frequency range from 25 GHz to 30 GHz for 5G wireless applications. A Rotman Lens with five input ports and six output ports is the beamforming network that is connected to six fork-like shaped antennas. This novel system covers a wide scanning angle from -45° to +45° over the mentioned bandwidth. The simulated and measured results agree in a very high extent in terms of the S-parameters and radiation pattern.