3D Printed Wideband Dual-Polarized Lens Antenna for mm-Wave Communication

A low-cost three-dimensional (3D) printed wideband dual-polarized lens antenna, useful for communication system design for future millimeter-wave (mm-wave) communications, is presented in this paper. The proposed antenna consists of a feed in a waveguide configuration, a conical reflector, and a dielectric lens to improve the performance of the radiating structure. The antenna works in the 75–100 GHz frequency range, providing a maximum gain of 9 dBi in the azimuth plane. CST Microwave Studio, implementing a full-wave locally conformal finite integration technique (FIT), was employed to characterize the antenna and to guide its physical realization. A good agreement was found between the numerical results and the experimental measurements performed on an antenna prototype. The structure offers the advantages of robustness, cost-effectiveness, and ease of fabrication in waveguide configurations.