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Design of Lens Based Focal Plane Arrays for Wide Field-of-View Imagers at Sub-millimeter Wavelengths

Conference Paper (2021)
Author(s)

Huasheng Zhang (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Shahab Oddin Dabironezare (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Muhan Zhang (Student TU Delft)

Nuria Llombart (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Research Group
Tera-Hertz Sensing
DOI related publication
https://doi.org/10.1109/IRMMW-THz50926.2021.9567348 Final published version
More Info
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Publication Year
2021
Language
English
Research Group
Tera-Hertz Sensing
Article number
9567348
ISBN (print)
978-1-7281-9425-7
ISBN (electronic)
978-1-7281-9424-0
Event
IRMMW-THZ 2021 (2021-08-30 - 2021-09-03), Online at Chengdu, China
Downloads counter
235

Abstract

Large format focal plane arrays (FPAs) of lenses are promising candidates for wide field of view sub-millimeter imagers. Recently, a spectral technique based on coherent Fourier Optics has been proposed for analyzing such lens based FPAs in reception to facilitate the optimization via a field matching with the lens feed pattern. Based on this technique, three practical lens antenna geometries based on silicon, quartz and plastic lenses combined with leaky-wave antenna feeds are proposed and compared here. The synthesized lens based FPAs achieved scan loss lower than standard horn based FPAs, leading to wider field of views.