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The Focusing Lens Design in Ku-Band Using Ray Inserting Method (RIM)
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In this article, types of broadband focusing lens are presented based on the ray inserting method (RIM) in the $Ku$ -band. The realizable inhomogeneous isotropic dielectric media is obtained to… Click to show full abstract
In this article, types of broadband focusing lens are presented based on the ray inserting method (RIM) in the $Ku$ -band. The realizable inhomogeneous isotropic dielectric media is obtained to converge wavefront produced by a source on a focal point. The proposed three lenses are broadband because of good matching to the source and the surroundings. The finite-difference time-domain (FDTD) scheme and the full-wave simulation are used to confirm the results in the $Ku$ -band. To validate designed lenses’ performance, the circular focusing lens is realized and fabricated. The results of simulations and experiments indicate good performances of the designed lens in the wide frequency bandwidth.
