Project is focused on analysis, minimization and possible elimination of specific sources of randomness and malfunctions in process of contemporary nano-scale IC design of the radio-frequency subsystems. In first-place effects of non-ideal properties of active elements and parasitic features extracted directly from layout design are considered. Randomness in system parameters are described by stochastic differential-algebraic equations and analyzed by using non-monte-carlo methods, i.e. without generation of population of the solutions. Project admits existence of chaotic attractors as solution of the integrated systems.

Description in Czech
Projekt je zaměřen na analýzu, minimalizaci a případnou eliminaci specifických zdrojů neurčitostí a dysfunkcí přímo v procesu návrhu integrovaných radiofrekvenčních subsystémů při použití současných IC technologií. V prvé řadě se jedná o vliv neideálních vlastností použitých aktivních prvků a parazitních reaktančních prvků extrahovaných přímo z navrženého layoutu obvodu. Nahodilosti v hodnotách prvků systému jsou popsány stochastickými algebro-diferenciálními rovnicemi a analyzovány pomocí metod, které nejsou založeny na generaci populace řešení. Projekt připouští existenci chaotických atraktorů jako řešení integrovaných systémů.

Keywords
IC design; layout-level simulations; mathematical modeling; nonlinear dynamics; stochastic differential equations; chaos theory; strange attractors; continuous signal recognition

Key words in Czech
návrh IC; simulace na úrovni layoutu; matematické modelování; nelineární dynamika; stochastické diferenciální rovnice; teorie chaosu; podivné atraktory; klasifikace spojitých signálů

19-22248S

English

Petržela Jiří, doc. Ing., Ph.D. - principal person responsible
Brančík Lubomír, prof. Ing., CSc. - fellow researcher
Domanský Ondřej, Ing. - fellow researcher
Kledrowetz Vilém, doc. Ing., Ph.D. - fellow researcher
Kolářová Edita, doc. RNDr., Ph.D. - fellow researcher
Langhammer Lukáš, Ing., Ph.D. - fellow researcher
Šotner Roman, doc. Ing., Ph.D. - fellow researcher

Department of Radio Electronics
- responsible department (6.4.2018 - not assigned)
Department of Radio Electronics
- beneficiary (6.4.2018 - 31.12.2021)

ŠOTNER, R.; JEŘÁBEK, J.; POLÁK, L.; PROKOP, R.; KLEDROWETZ, V.; THEUMER, R.; LANGHAMMER, L. Special analog multipliers in voltage-controlled oscillator and phase-locked loop-based FM demodulator for measurement and processing of sensed low-frequency signals. MEASUREMENT, Journal of the International Measurement Confederation (IMEKO), 2022, vol. 201, no. 9, p. 1-17. ISSN: 0263-2241.
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PETRŽELA, J. Canonical hyperchaotic oscillators with single generalized transistor and generative two-terminal elements. IEEE Access, 2022, vol. 10, no. 9, p. 90456-90466. ISSN: 2169-3536.
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PETRŽELA, J. Chaotic and hyperchaotic dynamics of a Clapp oscillator. Mathematics, 2022, vol. 10, no. 11, p. 1-20. ISSN: 2227-7390.
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PETRŽELA, J.; RUJZL, M. Chaotic oscillations in cascoded and Darlington-type amplifier having generalized transistors. Mathematics, 2022, vol. 10, no. 3, p. 532-556. ISSN: 2227-7390.
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ŠOTNER, R.; JEŘÁBEK, J.; POLÁK, L.; PROKOP, R.; AYTEN, U.; JAIKLA, W. Short range electromagnetic interface using 0.35 μm CMOS blocks for temperature monitoring in isolated areas. Journal of Advanced Research, 2022, vol. 41, no. 11, p. 49-62. ISSN: 2090-1232.
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ŠOTNER, R.; POLÁK, L.; JEŘÁBEK, J.; LAHIRI, A.; JAIKLA, W. Readout for simple and precise analog acoustic impact initialization. Scientific Reports, 2021, vol. 11, no. 1, p. 1-16. ISSN: 2045-2322.
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ŠOTNER, R.; PETRŽELA, J.; LANGHAMMER, L. Voltage Tunable Building Blocks Using Compact Active Device in Design of Filtering Applications. In Proceedings of 31st International Conference Radioelektronika (RADIOELEKTRONIKA 2021). Brno (Czech Republic): IEEE, 2021. p. 1-4. ISBN: 978-1-6654-1474-6.
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ŠOTNER, R.; POLÁK, L.; JEŘÁBEK, J.; PETRŽELA, J.; KLEDROWETZ, V. Analog Multipliers-Based Double Output Voltage Phase Detector for Low-Frequency Demodulation of Frequency Modulated Signals. IEEE Access, 2021, vol. 9, no. 6, p. 93062-93078. ISSN: 2169-3536.
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PETRŽELA, J. Hyperchaotic self-oscillations of two-stage class C amplifier with generalized transistors. IEEE Access, 2021, vol. 9, no. 4, p. 62182-62194. ISSN: 2169-3536.
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PETRŽELA, J. Chaotic and hyperchaotic self-oscillations of lambda diode composed by generalized bipolar transistors. Applied Sciences - Basel, 2021, vol. 11, no. 8, p. 3326-3347. ISSN: 2076-3417.
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JAIKLA, W.; SIRIPONGDEE, S.; KHATEB, F.; ŠOTNER, R.; SILAPAN, P.; SUWANJAN, P.; CHAICHANA, A. Synthesis of biquad filters using two VD-DIBAs with independent control of quality factor and natural frequency. AEU - International Journal of Electronics and Communications, 2021, vol. 132, no. , IF: 2,924, p. 1-12. ISSN: 1434-8411.
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PETRŽELA, J. Evidence of strange attractors in class C amplifier with single bipolar transistor: polynomial and piecewise-linear case. ENTROPY, 2021, vol. 23, no. 2, p. 175-198. ISSN: 1099-4300.
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PETRŽELA, J.: class_C_mathcad; Software for numerical analysis of chaotic class C amplifier in mathcad. office SD6.77. URL: https://www.urel.fekt.vut.cz/. (software)
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PETRŽELA, J.: Class_C_chaos; Chaotic oscillator based on class C amplifier. office SD6.77. URL: https://www.urel.fekt.vut.cz/. (funkční vzorek)
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PETRŽELA, J. New Chaotic Oscillator Derived from Class C Single Transistor-Based Amplifier. MATHEMATICAL PROBLEMS IN ENGINEERING, 2020, vol. 2020, no. 1, p. 1-18. ISSN: 1024-123X.
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JAIKLA, W.; CHAICHANA, A.; SUWANJAN, P.; ŠOTNER, R. Design of Electronically Controllable Quadrature Sinusoidal Oscillator with Linear Control of Frequency. In Proceedings of 2nd World Symposium on Communication Engineering (WSCE). Nagoya, Japan: IEEE, 2020. p. 179-183. ISBN: 978-1-7281-5329-2.
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PETRŽELA, J.; ŠOTNER, R. Binary Memory Implemented by Using Variable Gain Amplifiers With Multipliers. IEEE Access, 2020, vol. 8, no. 1, p. 197276-197286. ISSN: 2169-3536.
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PROKOP, R.; ŠOTNER, R.; KLEDROWETZ, V. The CMOS Highly Linear Current Amplifier with Current Controlled Gain for Sensor Measurement Applications. SENSORS, 2020, vol. 20, no. 16, p. 1-23. ISSN: 1424-8220.
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ŠOTNER, R.; DOMANSKÝ, O.; LANGHAMMER, L.; PETRŽELA, J. Comparison of Simple Design Methods for Voltage Controllable Resistance. In Proceedings of 30th International Conference Radioelektronika (RADIOELEKTRONIKA 2020). Bratislava, Slovakia: IEEE, 2020. p. 122-127. ISBN: 978-1-7281-6469-4.
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ŠOTNER, R.; JEŘÁBEK, J.; POLÁK, L.; PETRŽELA, J. Capacitance Multiplier Using Small Values of Multiplication Factors for Adjustability Extension and Parasitic Resistance Cancellation Technique. IEEE Access, 2020, vol. 8, no. 1, p. 144382-144392. ISSN: 2169-3536.
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Responsibility: Petržela Jiří, doc. Ing., Ph.D.