A 300 GHz "Always-in-Focus" Focusing System for Target Detection
| dc.contributor.author | Montero-de-Paz, Javier | |
| dc.contributor.author | Enrique Garcia-Munoz, Luis | |
| dc.contributor.author | Segovia-Vargas, Daniel | |
| dc.coverage.issue | 2 | cs |
| dc.coverage.volume | 22 | cs |
| dc.date.accessioned | 2015-01-21T09:56:45Z | |
| dc.date.available | 2015-01-21T09:56:45Z | |
| dc.date.issued | 2013-06 | cs |
| dc.description.abstract | A focusing system for a 300 GHz radar with 5 m target distance and 10 mm diameter spot size resolution is proposed. The focusing system is based on a Gaussian telescope scheme and its main parameters have been de¬signed using Gaussian beam quasi-optical propagation theory with an in-house developed MATLAB® based analysis tool. Then, this approach has been applied to a real focusing system based on two elliptical mirrors in order to reduce the distortion and cross-polar level and a plane mirror to provide scanning capabilities. The over¬all system has been simulated with a full-wave electromag¬netic simulator and its behavior is presented. With this approach, the focusing system always works "in-focus" since the only mirror that is rotated when scanning is the output plane mirror, so the beam is almost not distorted. The design process, although based in the well-known Gaussian beam quasi-optical propagation theory, provides a fast and accurate method and minimizes the overall size of the mirrors. As a consequence, the size of the focusing system is also reduced. | en |
| dc.format | text | cs |
| dc.format.extent | 610-617 | cs |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Radioengineering. 2013, vol. 22, č. 2, s. 610-617. ISSN 1210-2512 | cs |
| dc.identifier.issn | 1210-2512 | |
| dc.identifier.uri | http://hdl.handle.net/11012/36892 | |
| dc.language.iso | en | cs |
| dc.publisher | Společnost pro radioelektronické inženýrství | cs |
| dc.relation.ispartof | Radioengineering | cs |
| dc.relation.uri | http://www.radioeng.cz/fulltexts/2013/13_02_0610_0617.pdf | cs |
| dc.rights | Creative Commons Attribution 3.0 Unported License | en |
| dc.rights.access | openAccess | en |
| dc.rights.uri | http://creativecommons.org/licenses/by/3.0/ | en |
| dc.subject | Quasi-optical Gaussian beam propagation | en |
| dc.subject | radar | en |
| dc.subject | focusing system | en |
| dc.subject | terahertz imaging | en |
| dc.title | A 300 GHz "Always-in-Focus" Focusing System for Target Detection | en |
| dc.type.driver | article | en |
| dc.type.status | Peer-reviewed | en |
| dc.type.version | publishedVersion | en |
| eprints.affiliatedInstitution.faculty | Fakulta eletrotechniky a komunikačních technologií | cs |