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pro vyhledávání: '"Petr Ourednik"'
Autor:
Fanqi Meng, Zhenling Tang, Petr Ourednik, Jahnabi Hazarika, Michael Feiginov, Safumi Suzuki, Hartmut G. Roskos
Publikováno v:
APL Photonics, Vol 9, Iss 8, Pp 086103-086103-8 (2024)
Oscillators based on resonant tunneling diodes (RTDs) are able to reach the highest oscillation frequency among all electronic THz emitters. However, the emitted power from RTDs remains limited. Here, we propose linear RTD oscillator arrays capable o
Externí odkaz:
https://doaj.org/article/7040a10937b34d3aaca8e38020f49d2f
Autor:
Petr Ourednik, Michael Feiginov
Publikováno v:
2022 15th UK-Europe-China Workshop on Millimetre-Waves and Terahertz Technologies (UCMMT).
Publikováno v:
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
Publikováno v:
SSRN Electronic Journal.
Publikováno v:
Journal of Applied Physics. 133:014501
A model for analyzing dynamic large-signal characteristics of double-barrier resonant-tunneling diodes (RTDs) is presented. The model is based on the analysis of dynamical trajectories in phase space, defined by the RTD bias and electron density in t
Publikováno v:
2021 20th International Conference on Microwave Techniques (COMITE).
This article describes a target simulator for FMCW radar sensors which, working on the frequency shift principle, deals with the presence of an unwanted (mirror) target. A simple method is proposed to suppress the mirror target by utilizing an IQ mix
Autor:
Petr Ourednik, Michael Feiginov
Publikováno v:
Applied Physics Letters. 120:183501
9 μW at the fundamental frequency of 1.09 THz, 15 μW at 0.98 THz, and up to 27 μW at the lower frequencies of 620–660 GHz have been demonstrated with double-resonant-tunneling-diode (RTD) patch-antenna oscillators. These parameters are substanti
Autor:
Petr Ourednik, Premysl Hudec
Publikováno v:
Radioengineering. 2018 vol. 27, č. 4, s. 1077-1084. ISSN 1210-2512
Radioengineering, Vol 27, Iss 4, Pp 1077-1084 (2018)
Radioengineering, Vol 27, Iss 4, Pp 1077-1084 (2018)
The paper deals with the measurement of individual components or circuits embedded in more complex radio frequency (RF) or microwave printed circuit board (PCBs). Since no standard RF measurement enables the direct parallel connection of an analyzer
Publikováno v:
Applied Physics Letters. 119:263509
Publikováno v:
2017 European Radar Conference (EURAD).
Military active defense systems are based on the detection of threatening missiles and their de-activation by suitable counter-measures. Often, these defense systems are based on microwave radar sensors. Practical tests indicate that when detecting t