A Novel Design and Simulation of Rotman Lens for 5G Frequency Range 3.3–3.6 GHz

Rotman lens is most commonly used intermediate network among the various transmission points and multiple reception points with the demand of uniform beam-forming at output side corresponding to input signal transmission. Wide beam angle and lowest phase errors are the ultimate need for effective beam-forming among receivers. In 5G applications, the planer Rotman lens design is mainly used due to its simplicity, ease of fabrication and testing. Furthermore, for large coverage and low latency such lens with higher beam angle and minimum errors are mainly demanded for wide beam-forming. In this research work, the planer geometry of the Rotman lens with higher beam angle is designed and simulated for the 5G range of frequency, i.e., 3.3–3.6 GHz. The simulation result of proposed lens structure offers the reduced path length (phase) error at higher beam angle and also good reflection coefficient values at the selected 5G frequency range.