Artículo
Ray-Tracing and Physical-Optics Model for Planar Mikaelian Lens Antennas
Autor/es | Chen, Mingzheng
Habiboglu, Ozum Mesa Ledesma, Francisco Luis Quevedo Teruel, Óscar |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada I |
Fecha de publicación | 2024-01 |
Fecha de depósito | 2024-01-24 |
Publicado en |
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Resumen | This article proposes a ray-tracing and physical-optics (RT-PO) model that allows for an accurate and time-efficient evaluation of planar Mikaelian lens antennas implemented by parallel plate waveguides. With an intrinsic ... This article proposes a ray-tracing and physical-optics (RT-PO) model that allows for an accurate and time-efficient evaluation of planar Mikaelian lens antennas implemented by parallel plate waveguides. With an intrinsic flat shape and axis-symmetry of refractive-index distribution characteristic, the planar Mikaelian lens antennas are easy to fabricate and integrate to standard planar feeds. A numerical computation of the ray paths based on the Snell’s law gives a description of the phase of the electric field in the lens aperture, while the ray-tube power conservation theory is employed to evaluate the amplitude. The field equivalence principle is then used to calculate the far field of the lens antenna. The information of far-field directivity, gain, and dielectric efficiency is further obtained, considering a small loss in the dielectric materials. Our approach is validated by comparing the results of a particular Mikaelian lens antenna with those computed using a commercial full-wave simulator, demonstrating high accuracy and significant reduction in computation resources and times. |
Agencias financiadoras | 10.13039/501100004837-Ministerio de Ciencia e Innovación, España Grant Number: PID2020-116739GB-I00 |
Identificador del proyecto | PID2020-116739GB-I00 |
Cita | Chen, M., Habiboglu, O., Mesa Ledesma, F.L. y Quevedo Teruel, Ó. (2024). Ray-Tracing and Physical-Optics Model for Planar Mikaelian Lens Antennas. IEEE Transactions on Antennas and Propagation. https://doi.org/10.1109/TAP.2023.3348983. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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IE3_mesa-ledesma_2024_ray.pdf | 4.541Mb | [PDF] | Ver/ | |