|Low-cost lens antenna for 5G multi-beam communication
|Year of Publication
|Garcia-Marin, E., D. S. Filipovic, J. L. Masa-Campos, and P. Sanchez-Olivares
|Microwave and Optical Technology Letters
|5G mobile communication, Beam steering, Microstrip antennas
|Abstract A planar dielectric lens has been designed for low-cost multi-beam antennas in the 26-GHz band of 5G communications. The lens feeder is a stacked-patch microstrip antenna with four input ports, thus permitting four independent high-directivity radiation beams. Maximum steering of 25° can be attained, which a simulated gain over 18 dB for all scanning angles. The antenna has been implemented with low-cost manufacturing techniques. The feeder is fabricated as a printed circuit board, while the lens is realized as a perforated 3D-printed dielectric piece. Experimental results confirm the multi-beam capability of the lens system, suggesting that the spillover efficiency can be improved in further works.