Open AccessProceedings Article
Bifocal Reflector antenna system for radar imaging at 300 GHz
Antonio Garcia-Pino,Borja Gonzalez-Valdes,B. Mencia-Oliva,J. G. de la Fuente,Oscar Lopez,José Luis Besada Sanmartín +5 more
- pp 3814-3818
TLDR
In this article, a 300 GHz radar imaging system is described, including descriptions of the radar sensor and antenna subsystems, and a prototype is being mounted and its characterization is presented.Abstract:
A 300 GHz radar imaging system is presented, including descriptions of the radar sensor and antenna subsystems. The antenna consists of a Bifocal Ellipsoidal Gregorian Reflector whose beam is scanned by a combination of the rotation and vertical tilting of a flat small secondary mirror. A prototype is being mounted and its characterization will be presented.read more
Citations
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Journal ArticleDOI
3-D High-Resolution Imaging Radar at 300 GHz With Enhanced FoV
Jesus Grajal,Alejandro Badolato,Gorka Rubio-Cidre,Luis Ubeda-Medina,B. Mencia-Oliva,Antonio Garcia-Pino,Borja Gonzalez-Valdes,Oscar Rubinos +7 more
TL;DR: In this paper, a 3D high-resolution radar at 300 GHz with a cell resolution of 1.6×1.6 GHz at a standoff distance of 8 m was developed for security applications.
Journal ArticleDOI
DDS-Based Signal-Generation Architecture Comparison for an Imaging Radar at 300 GHz
Gorka Rubio-Cidre,Alejandro Badolato,Luis Ubeda-Medina,Jesus Grajal,B. Mencia-Oliva,Blas-Pablo Dorta-Naranjo +5 more
TL;DR: The impact of the signal-generation architectures on the imaging radar indicates that both architectures present a similar radar performance in terms of radar image quality, although the narrowband direct-digital-synthesis/phase-locked loop scheme is a cost-effective solution compared with the broadband direct- Digital-Synthesis scheme.
Journal ArticleDOI
Bifocal Reflector Antenna for a Standoff Radar Imaging System With Enhanced Field of View
Antonio Garcia-Pino,Borja Gonzalez-Valdes,Oscar Rubinos,Jesus Grajal,Alejandro Badolato,B. Mencia-Oliva,Pilar García Soidán,José Luis Besada-Sanmartín +7 more
TL;DR: In this article, a unique multireflector bifocal antenna design for real-time standoff imaging applications is presented in which the antenna is used in combination with a 300 GHz radar sensor to acquire images at 8 m over a large (80 × 50 cm) field of view (FoV).
Proceedings ArticleDOI
Experimental radar imager with sub-cm range resolution at 300 GHz
B. Mencia-Oliva,Jesus Grajal,Alejandro Badolato,Antonio Garcia-Pino,Jose Luis Besada Sanmartin,Omar A. Yeste-Ojeda +5 more
TL;DR: A high range resolution radar sensor working in the submillimeter-wave band for standoff detection and security applications and the generation of 3D images by means of the radar front-end integrated with a bifocal ellipsoidal Gregorian reflector system is presented.
Journal ArticleDOI
About a New Procedure for Offset Bifocal Reflector Antennas Synthesis
TL;DR: In this article, a novel procedure for designing three-dimensional offset bifocal reflector antennas (BFRAs) is presented, which allows us to determine the reflector surfaces in analytical form as functions of two parametric variables.
References
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Journal ArticleDOI
Standoff Detection of Weapons and Contraband in the 100 GHz to 1 THz Region
R. Appleby,H.B. Wallace +1 more
TL;DR: The techniques and technologies currently being investigated to detect weapons and contraband concealed on persons under clothing are reviewed and the basic phenomenology of the atmosphere and materials that must be understood in order to realize such a system are discussed.
Journal ArticleDOI
Confocal Ellipsoidal Reflector System for a Mechanically Scanned Active Terahertz Imager
TL;DR: In this article, the design of a reflector system that can rapidly scan and refocus a terahertz beam for high-resolution standoff imaging applications has been presented, which utilizes a confocal Gregorian geometry with a small mechanical rotating mirror and an axial displacement of the feed.
Journal ArticleDOI
ICARA: induced-current analysis of reflector antennas
TL;DR: In this article, the ICARA (induced-current analysis of reflector antennas) software is presented, which is able to predict the behavior of reflectors using the physical optics method.
Journal ArticleDOI
A Bifocal Ellipsoidal Gregorian Reflector System for THz Imaging Applications
TL;DR: In this paper, a Bifocal reflector system is proposed to reduce the beam aberrations in a confocal Gregorian system, where the nominal reflector surfaces are substituted by shaped surfaces.
Journal ArticleDOI
Low-Cost CW-LFM Radar Sensor at 100 GHz
TL;DR: The system characterization to identify the performance-limiting stages and the subsequent design optimization are presented, and the assessment of system performance for several representative applications has been carried out.