Searched for: subject%3A%22Passive%255C+imager%22
(1 - 6 of 6)
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Hoogelander, M. (author), van Berkel, S.L. (author), Malotaux, E.S. (author), Alonso Del Pino, M. (author), Cavallo, D. (author), Spirito, M. (author), Llombart, Nuria (author)
This article presents the development of a focal plane array (FPA) for terahertz imaging applications with a near diffraction-limited resolution achieved through a very tight sampling of the focal plane. The antenna array is integrated with direct detectors in a 22-nm CMOS technology and operates from 200 to 600 GHz. The tight sampling of the...
journal article 2023
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van Berkel, S.L. (author), Malotaux, E.S. (author), De Martino, C. (author), Spirito, M. (author), Cavallo, D. (author), Neto, A. (author), Llombart, Nuria (author)
A complete system modeling and characterization of a wideband differential terahertz (THz) direct detector, integrated in a commercial CMOS technology, is presented. The detector consists of a recently developed double leaky-slot lens antenna that operates from 200 to 600 GHz in combination with a differential Schottky barrier diode (SBD) direct...
journal article 2021
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van Berkel, S.L. (author)
In the design of millimeter and sub-millimeter wave radiometric imaging systems a persistent goal is the increase in the speed of acquisition of the image while maintaining a high sensitivity. Typically, the highest sensitivity is achieved by cryogenically cooling the detectors, specifically in astronomical applications. However, for the purpose...
doctoral thesis 2020
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Gandini, E. (author), Tamminen, Aleksi (author), Luukanen, Arttu (author), Llombart, Nuria (author)
A wide field of view (FOV) inversely magnified dual-lens system for submillimeter wavelength imagers is presented in this paper. The antenna is designed for near-field focusing, at a range of 2.1 m from the primary aperture and to work in the frequency range from 200 to 600 GHz. The half-power beamwidth (HPBW) is 0.27° (1 cm in the image...
journal article 2018
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van Berkel, S.L. (author), Yurduseven, O. (author), Freni, Angelo (author), Neto, A. (author), Llombart, Nuria (author)
In millimeter and submillimeter-wave radiometric imaging systems, a persistent goal is the increase in the speed of acquisition of the image while maintaining a high sensitivity. Typically, the highest sensitivity is achieved by cryogenically cooling the detectors, specifically in astronomical applications. However, for the purpose of low...
journal article 2017
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Dabironezare, S.O. (author)
This work focuses on designing and evaluating the performance of a dual-band passive imager for security applications at sub-mm wave regime. The bolometer based kinetic inductive detectors are used as incoherent detectors on the focal plane array of this imaging system. In order to realize a dual-band system, two absorber sets are designed to...
master thesis 2015
Searched for: subject%3A%22Passive%255C+imager%22
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