Effect of Integrated Lens Antenna Diameter on Scan Loss

Publisher Copyright: © 2022 European Association for Antennas and Propagation.An integrated lens antenna (ILA) is desired to have high directivity and a wide steering range. The directivity of an ILA is proportional to its diameter. In this work, the relation between the diameter and the scan loss of the elliptical and hemispherical ILAs is studied using the ray-tracing simulation. The simulation study finds that the scan loss of an ILA, both elliptical and hemispherical, is proportional to the diameter. In addition, the optimum extension lengths of the extended hemispherical ILA are presented for various diameter and relative permittivities which serve as the design guideline for ILA designers.Peer reviewe