TY - CHAP AU - Fehér, Gábor AU - Gerhátné Udvary, Eszter ED - Murat, Uysal ED - Carlo, Capsoni ED - Zabih, Ghassemlooy ED - Anthony, Boucouvalas ED - Gerhátné Udvary, Eszter TI - VLC-Based Indoor Localization T2 - Optical Wireless Communications PB - Springer Netherlands CY - Cham SN - 9783319302003 T3 - Signals and Communication Technology, ISSN 1860-4862 PY - 2016 SP - 609 EP - 622 PG - 14 DO - 10.1007/978-3-319-30201-0_28 UR - https://m2.mtmt.hu/api/publication/3113124 ID - 3113124 LA - English DB - MTMT ER - TY - JOUR AU - Fekete, Gábor AU - Mészáros, Gergely Zoltán AU - Gerhátné Udvary, Eszter AU - Fehér, Gábor AU - Berceli, Tibor TI - Visible light communication channel disturbances and examination of the modulation formats JF - INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES J2 - INT J MICROW WIREL T VL - 8 PY - 2016 IS - 8 SP - 1163 EP - 1171 PG - 9 SN - 1759-0787 DO - 10.1017/S1759078715001269 UR - https://m2.mtmt.hu/api/publication/2972859 ID - 2972859 N1 - WoS:hiba:000393853800005 2020-08-29 06:54 cikkazonosító nem egyezik LA - English DB - MTMT ER - TY - CHAP AU - Fehér, Gábor AU - Mészáros, Gergely Zoltán AU - Horvath, R AU - Szabó, Gábor AU - Berceli, Tibor ED - Jaworski, M ED - Marciniak, M TI - Experimental UWB Impulse Transmission with Receiver and Transmitter Built with Discrete Parts T2 - 2015 17th International Conference on Transparent Optical Networks (ICTON) PB - IEEE Computer Society CY - Piscataway (NJ) SN - 9781467378802 PY - 2015 PG - 4 DO - 10.1109/ICTON.2015.7193415 UR - https://m2.mtmt.hu/api/publication/3111761 ID - 3111761 AB - This paper shows the design and implementation of an UWB transmitter and a receiver built with discrete parts. The transmitter is based on a step recovery diode and the receiver is built around an ultra-high speed comparator. The circuits are designed in a manner, that all components are low cost discrete elements and both the transmitter and the receiver can be easily interfaced to low speed and low power micro controller systems. With the proposed transmitter and receiver devices we implemented an experimental UWB data transmitting link with a simple UART like transmission protocol that is able to transmit 8 bit packets. LA - English DB - MTMT ER - TY - CHAP AU - Kozlovszky, Miklós AU - Pavlinić, DZ AU - Oder, A AU - Fehér, Gábor AU - Bogdanov, P ED - Petar, Biljanović TI - Situation and location awareness in harsh environment T2 - 38th International Convention on Information and Communication Technology, Electronics and Microelectronics PB - Croatian Society for Information and Communication Technology Electronics and Microelectronics (MIPRO) CY - Rijeka SN - 9789532330823 PY - 2015 SP - 328 EP - 332 PG - 5 DO - 10.1109/MIPRO.2015.7160288 UR - https://m2.mtmt.hu/api/publication/3148764 ID - 3148764 LA - English DB - MTMT ER - TY - CHAP AU - Toth, G AU - Zólomy, Attila Imre AU - Fehér, Gábor AU - Berceli, Tibor ED - Jaworski, M ED - Marciniak, M TI - Effect of Parasitics in Tunable X-Band Metamaterial Isolators T2 - 2015 17th International Conference on Transparent Optical Networks (ICTON) PB - IEEE Computer Society CY - Piscataway (NJ) SN - 9781467378802 PY - 2015 PG - 4 DO - 10.1109/ICTON.2015.7193416 UR - https://m2.mtmt.hu/api/publication/3111773 ID - 3111773 AB - In this paper the investigations of the parasitics in a fabricated X-band tuneable metamaterial isolator are presented. The isolator applies a microstrip left handed artificial transmission line (LHTL) with Butterworth phase response on an anisotropic ferrite substrate material. The structure is simplified and optimized to reduce the harmful right handed and coupled parasitic effects to achieve stable, spurious resonance free phase characteristic in the targeted 8 - 12 GHz frequency band. This is required to archive the tuneable 20 dB isolation by varying the applied magnetic field. Detailed analysis shows that both the capacitive and inductive coupling between the consecutive stage printed inductors have no significant effect in realistic structures. Also, the parallel shunt parasitic capacitance can be reduced enough with proper design to have very little effect. The main limiting factor is the series parasitic inductance of both the traces and the applied series capacitors. LA - English DB - MTMT ER - TY - CONF AU - Tóth, Gábor AU - Fehér, Gábor AU - Zólomy, Attila Imre AU - Berceli, Tibor TI - Tunable X-band metamaterial isolator T2 - Micro- and Millimetre Wave Technology and Techniques Workshop 2014 proceedings C1 - Noordwijk PY - 2014 SP - 1 EP - 4 PG - 4 UR - https://m2.mtmt.hu/api/publication/2862764 ID - 2862764 LA - English DB - MTMT ER - TY - JOUR AU - Szabó, Gábor AU - Fehér, Gábor AU - Fekete, Gábor AU - Mészáros, Gergely Zoltán TI - Carrier Drawing-out Power LED Driver with Cost- effective Discrete Parts JF - International Workshop on Optical Wireless Communications J2 - International Workshop on Optical Wireless Communications VL - 2013 PY - 2013 SP - 1 EP - 4 PG - 4 SN - 2377-0252 DO - 10.1109/iwow.2013.6777768 UR - https://m2.mtmt.hu/api/publication/2696541 ID - 2696541 LA - English DB - MTMT ER - TY - CHAP AU - Fehér, Gábor AU - Gerhátné Udvary, Eszter AU - Fűzy, Csaba AU - Cseh, Tamás AU - Berceli, Tibor ED - Marian, Marciniak ED - Marek, Jaworski TI - Pulsed mode red VCSEL for high speed VLC communication T2 - 2012 14th International Conference on Transparent Optical Networks (ICTON) PB - IEEE Press CY - New York, New York SN - 9781467322270 PY - 2012 PG - 4 DO - 10.1109/ICTON.2012.6253884 UR - https://m2.mtmt.hu/api/publication/2687145 ID - 2687145 LA - English DB - MTMT ER - TY - CHAP AU - Riczu, Péter AU - Mesterházi, Péter Ákos AU - Fórián, Tünde AU - Fehér, Gábor AU - Bíró, János AU - Tamás, János ED - Neményi, M ED - Heil, B TI - Evaluation of different GPS signal corrections to improve field accuracy of the autopilot system T2 - The Impact of Urbanization, Industrial and Agricultural Technologies on the Natural Environment : International Scientific Conference on Sustainable Development and Ecological Footprint PB - Nyugat-magyarországi Egyetem Kiadó CY - Sopron SN - 9789633340479 PY - 2012 SP - 1 EP - 6 PG - 6 UR - https://m2.mtmt.hu/api/publication/1932813 ID - 1932813 LA - English DB - MTMT ER - TY - CHAP AU - Fehér, Gábor AU - Fűzy, Csaba AU - Gerhátné Udvary, Eszter AU - Berceli, Tibor ED - Rak, Jacek ED - Jaumard, Brigitte ED - Wessäly, Roland TI - Ultra Wide-Band Impulse Transmission over Optical Fibre T2 - 3rd International Workshop on Reliable Networks Design and Modeling (RNDM2011) co-located with 3rd international congress on ultra modern telecommunications and control systems and workshops (ICUMT 2011) PB - IEEE Press CY - New York, New York SN - 9781457706820 PY - 2011 SP - 1 EP - 5 PG - 5 UR - https://m2.mtmt.hu/api/publication/2670560 ID - 2670560 LA - English DB - MTMT ER -