A GO/PO tool for synthesizing shaped multi-surface dielectric lens antennas

Master thesis (2022)

Authors

A.L. Gottmer Electrical Engineering, Mathematics and Computer Science

Contributors

Nuria Llombart Tera-Hertz Sensing - EEMCS (supervisor 1)
Shahab Oddin Dabironezare Tera-Hertz Sensing - EEMCS (supervisor 1)
A. Neto Tera-Hertz Sensing - EEMCS (supervisor 2)
Willem Jellema SRON Netherlands Institute for Space Research (supervisor 2)
Faculty
Electrical Engineering, Mathematics and Computer Science
Copyright: © 2022 Leila Gottmer
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Published Date

21-12-2022

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Abstract

In this thesis, an efficient optimization method is described for synthesizing lens antennas fabricated in low permittivity plastic materials to achieve wide scanning performances. The method is based on an antenna in reception representation. The optimized parameters are the location and orientation of the antenna feeder, lens angular region and its shape by adding Zernike polynomials to standard ellipsoidal shape. The synthesized lens antennas achieve scan losses lower than 3dB while scanning up to 60°. The presented theoretical results are validated using full wave simulations. Furthermore, an efficient analysis method based on Geometrical Optics and ray tracing is developed. This method is applied to the study of multi lens Quasi-Optical structures. The presented theoretical results are validated by multi surface Physical-Optics approach.