20.500.12556/DKUM-92353 A novel system for quasi-continuous THz signal transmission and reception This paper presents a novel system for generating and receiving quasi-continuous (QC) TeraHertz (THz) waves. A system design and theoretical foundation for QC-THz signal generation are presented. The proposed QC-THz system consists of commercially available photo-conductive antennas used for transmission and reception of THz waves and a custom-designed QC optical signal generator, which is based on a fast optical frequency sweep of a single telecom distributedfeedback laser diode and unbalanced optical fiber Michelson interferometer used for a high-frequency modulation. The theoretical model for the proposed system is presented and experimentally evaluated. The experimental results were compared to the state-of-the-art continuous-wave THz system. The comparison between the continuous-wave THz system and the proposed QC-THz system showed the ability to transmit and receive QC-THz waves up to 300 GHz. The upper-frequency limit is bounded by the length of the used Michelson interferometer. The presented design of THz signal generation has a potential for industrial application because it is cost-efficient and can be built using commercially available components. quasi-continuous terahertz photoconductive antenna wave emittance wave detection antene signali true false true MDPI AG Angleški jezik Slovenski jezik https://www.mdpi.com/journal/sensors © 2022 by the authors Članek v reviji 2025-04-01 10:02:41 2025-04-01 10:02:41 2025-04-02 03:09:44 0000-00-00 00:00:00 2022 0 0 16 str. iss. 12 Vol. 22 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2022-04-26 2022-06-10 2022-06-12 621.39 112134659 10.3390/s22124448 1424-8220 sensors-22-04448-v2.pdf sensors-22-04448-v2.pdf 1 4E62B1F2C1122B4FB0D48AA116292B50 69aeae092e883317772d10a2f96332f20a73eaf2c831691f2f4692626ab54b8c f03f4281-0ecf-11f0-811a-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=189885 https://www.mdpi.com/1424-8220/22/12/4448 0 f712eb77-0ecf-11f0-811a-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=189886 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0