Gain Enhancements of Base-Station Antennas Using the Additive Manufacturing of Dielectric Lens
| Name | Year |
| Po-Lin Lee, Yu-Kai Weng, Yu-Min Wu, Chih-Chieh Chen | 2020 |
| Keywords | |
| additive manufacturing, lens antennas, Yagi antennas |
In this study, we are going to implement a dielectric lens antenna by 3D printer at 2.45 GHz. The purpose is to transform the spherical wave radiated by the antenna into a plane wave after the lens, thereby improving the antenna gain. In optics, the lens on the focal point can refract the spherical wave radiated by the point light source into the plane wave. This study is simulated by HFSS software and is divided into two parts. The first part is the antenna design. The antenna designed is Quasi-Yagi Antenna, also known as parasitic antenna or directional antenna. Quasi-Yagi Antenna has the advantages of high gain, strong directivity, and simple structure. It is particularly effective when applied to radio direction-finding stations and long-distance radio communications. The second part is the manufacture of the dielectric lens. The dielectric lens is made by a 3D printer. The material is made of Polylactic Acid (PLA). The curvature of the lens is calculated by the characteristics of physical optical focusing. The conception is simulated on the HFSS. After measurement in the real environment, the total antenna gain increase really. The lens has the advantage of focusing, it is widely used in microwave relay communication.
