Roman Sotner

Ing. Roman ŠOTNER , Ph.D.

Publications

Journal papers
ŠOTNER, R.; JEŘÁBEK, J.; HERENCSÁR, N.; DOSTÁL, T.; VRBA, K. Design of Z-copy controlled- gain voltage differencing current conveyor based adjustable functional generator. Microelectronic Journal, 2015, vol. 46, no. 2, p. 143-152. ISSN: 0026- 2692.
JEŘÁBEK, J.; ŠOTNER, R.; VRBA, K. Electronically Adjustable Triple-Input Single- Output Filter with Voltage Differencing Transconductance Amplifier. Revue Roumaine des Sciences Techniques - Serie Électrotechnique et Énergétique, 2014, vol. 59, no. 2, p. 163-172. ISSN: 0035- 4066.
ŠOTNER, R.; JEŘÁBEK, J.; HERENCSÁR, N.; PETRŽELA, J.; VRBA, K.; KINCL, Z. Linearly Tunable Quadrature Oscillator Derived from LC Colpitts Structure Using Voltage Differencing Transconductance Amplifier and Adjustable Current Amplifier. ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING, 2014, vol. 81, no. 1, p. 121-136. ISSN: 0925- 1030.
JEŘÁBEK, J.; KOTON, J.; ŠOTNER, R.; VRBA, K. Adjustable band-pass filter with current active elements: two fully-differential and single- ended solutions. ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING, 2013, vol. 74, no. 1, p. 129-139. ISSN: 0925- 1030.
HERENCSÁR, N.; CICEKOGLU, O.; ŠOTNER, R.; KOTON, J.; VRBA, K. New resistorless tunable voltage- mode universal filter using single VDIBA. ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING, 2013, vol. 76, no. 2, p. 251-260. ISSN: 0925- 1030.
ŠOTNER, R.; HRUBOŠ, Z.; HERENCSÁR, N.; JEŘÁBEK, J.; DOSTÁL, T.; VRBA, K. Precise Electronically Adjustable Oscillator Suitable for Quadrature Signal Generation Employing Active Elements with Current and Voltage Gain Control. CIRCUITS SYSTEMS AND SIGNAL PROCESSING, 2013, vol. 2013, no. online first, p. 1-35. ISSN: 0278- 081X.
ŠOTNER, R.; JEŘÁBEK, J.; HERENCSÁR, N. Voltage Differencing Buffered/ Inverted Amplifiers and Their Applications for Signal Generation. Radioengineering, 2013, vol. 22, no. 2, p. 490-504. ISSN: 1210- 2512.
RAIDA, Z.; KOLKA, Z.; MARŠÁLEK, R.; PETRŽELA, J.; PROKEŠ, A.; ŠEBESTA, J.; GÖTTHANS, T.; HRUBOŠ, Z.; KINCL, Z.; KLOZAR, L.; POVALAČ, A.; ŠOTNER, R.; KADLEC, P. Communication subsystems for emerging wireless technologies. Radioengineering, 2012, vol. 21, no. 4, p. 1-14. ISSN: 1210- 2512.
ŠOTNER, R.; LAHIRI, A.; JEŘÁBEK, J.; HERENCSÁR, N.; KOTON, J.; DOSTÁL, T.; VRBA, K. Special Type of Three- Phase Oscillator Using Current Gain Control for Amplitude Stabilization. International Journal of Physical Sciences, 2012, vol. 7, no. 25, p. 3089-3098. ISSN: 1992- 1950.
ŠOTNER, R.; JEŘÁBEK, J.; HERENCSÁR, N.; HRUBOŠ, Z.; DOSTÁL, T.; VRBA, K. Study of Adjustable Gains for Control of Oscillation Frequency and Oscillation Condition in 3R- 2C Oscillator. Radioengineering, 2012, vol. 21, no. 1, p. 392-402. ISSN: 1210- 2512.
Conference papers
ŠOTNER, R.; JEŘÁBEK, J.; HERENCSÁR, N.; PROKOP, R.; VRBA, K.; DOSTÁL, T. Resistor-less First- Order Filter Design with Electronical Reconfiguration of its Transfer Function. In Proceedings of the 24th International Conference Radioelektronika 2014. 2014. p. 63-66. ISBN: 978-1-4799-3715- 8.
JEŘÁBEK, J.; ŠOTNER, R.; HERENCSÁR, N.; JAIKLA, W.; VRBA, K. Behavioral Model for Z- copy Voltage Controlled Current Follower Differential Input Transconductance Amplifier and Its Features. In Proceedings of 2014 37th International Conference on Telecommunications and Signal Processing (TSP). 2014. p. 391-395. ISBN: 978-80-214-4983- 1.
ŠOTNER, R.; JEŘÁBEK, J.; HERENCSÁR, N.; HORNG, J.; VRBA, K. Electronically Linearly Voltage Controlled Second-Order Harmonic Oscillator With Multiples of pi/ 4 Phase Shifts. In Proceedings of the 37th International Conference on Telecommunications and Signal Processing 2014. 2014. p. 396-400. ISBN: 978-80-214-4983- 1.
PETRŽELA, J.; ŠOTNER, R. Systematic design procedure towards reconfigurable first- order filters. In 24th International Conference radioelektronika 2014. Bratislava (Slovak Republic): 2014. p. 1-4. ISBN: 978-1-4799-3713- 4.
ŠOTNER, R.; JEŘÁBEK, J.; PETRŽELA, J.; VRBA, K.; DOSTÁL, T. Design of Fully Adjustable Solution of Band-Reject/All- Pass Filter Transfer Function Using Signal Flow Graph Approach. In Proceedings of the 24th International Conference Radioelektronika 2014. 2014. p. 67-70. ISBN: 978-1-4799-3715- 8.
ŠOTNER, R.; JEŘÁBEK, J.; HERENCSÁR, N.; PROKOP, R.; VRBA, K.; PETRŽELA, J.; DOSTÁL, T. Simply Adjustable Triangular and Square Wave Generator Employing Controlled Gain Current and Differential Voltage Amplifier. In Proceedings of the 23th international conference Radioelektronika 2013, April 16-17, Pardubice (MAREW 2013 - Microwave and Radio Electronics Week 2013). Pardubice: University of Pardubice, Studentska 95, 532 10, Pardubice, Czech Republic, 2013. p. 111-116. ISBN: 978-1-4673-5517- 9.
ŠOTNER, R.; JEŘÁBEK, J.; HERENCSÁR, N.; PETRŽELA, J.; VRBA, K.; KINCL, Z. Tunable Oscillator Derived from Colpitts Structure with Simply Controllable Condition of Oscillation and Synthetic Inductor Based on Current Amplifier and Voltage Differencing Transconductance Amplifier. In Proceeding of the 8th International Conference on Electrical and Electronics Engineering. The Chamber of Electrical Engineers Bursa Branch (EMO), 2013. p. 21-25. ISBN: 978-605-01-0504- 9.
JEŘÁBEK, J.; ŠOTNER, R.; KINCL, Z.; DOSTÁL, T.; VRBA, K. Study of Practical Problems in Two-Loop CCTA Based Biquad: Finite Attenuations in Stop Bands. In Proceeding of the 8th International Conference on Electrical and Electronics Engineering. The Chamber of Electrical Engineers Bursa Branch (EMO), 2013. p. 40-44. ISBN: 978-605-01-0504- 9.
HERENCSÁR, N.; ŠOTNER, R.; METIN, B.; KOTON, J.; VRBA, K. VDDDA - New 'Voltage Differencing' Device for Analog Signal Processing. In Proceeding of the 8th International Conference on Electrical and Electronics Engineering. Bursa, Turkey: The Chamber of Electrical Engineers Bursa Branch (EMO), 2013. p. 17-20. ISBN: 978-605-01-0504- 9.
JEŘÁBEK, J.; ŠOTNER, R.; VRBA, K. General Current- Mode Filtering Structure with Controllable Current Active Elements. In Proceedings of the 36th International Conference on Telecommunications and Signal Processing (TSP 2013). 2013. p. 402-406. ISBN: 978-1-4799-0403- 7.
ŠOTNER, R.; JEŘÁBEK, J.; HERENCSÁR, N.; LAHIRI, A.; PETRŽELA, J.; VRBA, K. Practical Aspects of Operation of Simple Triangular and Square Wave Generator Employing Diamond Transistor and Controllable Amplifiers. In Proceedings of the 36th International Conference on Telecommunications and Signal Processing (TSP 2013). 2013. p. 431-435. ISBN: 978-1-4799-0403- 7.
ŠOTNER, R.; JEŘÁBEK, J.; GÖTTHANS, T.; PROKOP, R.; DOSTÁL, T.; VRBA, K. Controlled Gain Current and Differential Voltage Amplifier and Study of Its Application in Simple Adjustable Oscillator. In Proceedings of the 36th International Conference on Telecommunications and Signal Processing (TSP 2013). 2013. p. 407-411. ISBN: 978-1-4799-0403- 7.
ŠOTNER, R.; HERENCSÁR, N.; JEŘÁBEK, J.; KOTON, J.; DOSTÁL, T.; VRBA, K. Quadrature Oscillator Based on Modified Double Current Controlled Current Feedback Amplifier. In Proceedings of 22nd International Conference Radioelektronika 2012, April 17-18. 2012. Brno: Dept. of Radio electronics, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic, 2012. p. 275-278. ISBN: 978-80-214-4468- 3.
HERENCSÁR, N.; LAHIRI, A.; KOTON, J.; VRBA, K.; ŠOTNER, R. New Floating Lossless Inductance Simulator Using Z- copy Current Follower Transconductance Amplifiers. In Proceedings of the 22nd International Conference Radioelektronika 2012. Brno: 2012. p. 93-96. ISBN: 978-80-214-4468- 3.
ŠOTNER, R.; JEŘÁBEK, J.; HERENCSÁR, N.; DOSTÁL, T.; VRBA, K. Electronically Adjustable Modification of CFA: Double Current Controlled CFA (DCC-CFA). In Proceedings of the 35th International Conference on Telecommunications and Signal Processing (TSP 2012). 2012. p. 401-405. ISBN: 978-1-4673-1116- 8.
JEŘÁBEK, J.; ŠOTNER, R.; VRBA, K. Comparison of the SITO Current-Mode Universal Filters Using Multiple- Output Current Followers. In Proceedings of the 35th International Conference on Telecommunications and Signal Processing (TSP 2012). 2012. p. 406-410. ISBN: 978-1-4673-1116- 8.