Publication details
GRIN Lens Design by Defining Phase Function and Using Optical Path Rescaling
| Authors | |
|---|---|
| Year of publication | 2023 |
| Type | Article in Proceedings |
| Conference | 13th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2023) |
| MU Faculty or unit | |
| Citation | |
| Web | https://metaconferences.org/META23/files/meta23_proceedings.pdf |
| Keywords | GRIN lens; Antenna; Optical path re-scaling |
| Description | In this paper, the phase function inside a graded index dielectric is directly defined using a closed-form formula to create a rotationally symmetric lens antenna. To maintain the refractive index within realistic limits, the refractive index is modified by the optical path rescaling method. An exemplar lens antenna provides a 2 dB improvement over the Luneburg lens at 10 GHz of the same length. The lens has a maximum refractive index of 2 and a side-lobe level of -25 dB. |