In this research project, we built a laboratory prototype of a THz radar. The radar is based on a similar principle of interaction between an optical signal and a photoconductive antenna. This can be achieved with the help of micro-processing of optical fibers and controlling laser diodes. In the research project, we proposed a special method for controlling the laser diode, which will allow changing the frequency of the THz signal and thereby affecting the shape of the output signal, which is needed for implementing a THz radar with an artificial aperture. In this work, we explored ways to generate a chirp signal using a laser and a laser diode and observed the shape of the received signal on the receiving photoconductive antennas. Here, we will propose an antenna design by creating an antenna array in the THz range, for the purpose of signal generation. <\/p>\n\n\n\n
We used a deep neural network to classify materials.<\/p>\n\n\n\n
B. Pongrac and co-authors, THz Signal Generator Using a Single DFB Laser Diode and the Unbalanced Optical Fiber Interferometer, Mdpi Sensors 2020.<\/p>\n\n\n\n
B. Pongrac, A. Sarja\u0161 and D. Gleich, “THz imaging based on Frequency Domain Spectroscopy,”\u00a02022 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)<\/em>, Graz, Austria, 2022.<\/p>\n\n\n\n A. Sarja\u0161 and co-authors, A novel system for quasi-continuous THz signal transmission and reception, MDPI Sensors 2025.<\/p>\n\n\n\n <\/p>","protected":false},"excerpt":{"rendered":" V tem raziskovalnem projektu smo izdelali laboratorijski prototip THz radarja. Radar je zasnovan na podobnem principu interakcije opti\u010dnega signala s foto prevodno anteno. To je mogo\u010de dose\u010di s pomo\u010djo mikro-obdelave opti\u010dnih vlaken in vodenjem laserskih diod. V raziskovalnem projektu smo Read More …<\/a><\/p>","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/pages\/46"}],"collection":[{"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/comments?post=46"}],"version-history":[{"count":24,"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/pages\/46\/revisions"}],"predecessor-version":[{"id":1835,"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/pages\/46\/revisions\/1835"}],"wp:attachment":[{"href":"https:\/\/au.feri.um.si\/losdv\/en\/wp-json\/wp\/v2\/media?parent=46"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<\/code><\/pre>\n\n\n\n