Publications

• 2024

  SEMENOV, D.; ŠOTNER, R.; POLÁK, L.; JEŘÁBEK, J.; PETRŽELA, J.; LANGHAMMER, L. Comparison of Analytical and Algorithm-Based Design of Two-Port Using Two Bilinear Sections. IEEE Access, 2024, vol. 12, no. July, p. 105069-105079. ISSN: 2169-3536.
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  ŠOTNER, R.; POLÁK, L.; JEŘÁBEK, J.; LANGHAMMER, L.; FREEBORN, T. Novel voltage Multiplier/Divider-based active square law detector for heartbeat measurement. MEASUREMENT, Journal of the International Measurement Confederation (IMEKO), 2024, vol. 226, no. 2, p. 1-12. ISSN: 0263-2241.
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  KUMNGERN, M.; KHATEB, F.; KULEJ, T.; LANGHAMMER, L. 1 V Electronically Tunable Differential Difference Current Conveyors Using Multiple-Input Operational Transconductance Amplifiers. SENSORS, 2024, vol. 24, no. 5, p. 1-20. ISSN: 1424-8220.
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• 2023

  LANGHAMMER, L.; ŠOTNER, R.; THEUMER, R. Various Order Low–Pass Filter with the Electronic Change of Its Approximation. SENSORS, 2023, vol. 23, no. 19, p. 1-23. ISSN: 1424-8220.
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  LANGHAMMER, L.; ŠOTNER, R. Reconnection-Less Reconfigurable Filter Based on Method of Unknown Nodal Voltages Using 4x4 Matrix. IEEE Access, 2023, vol. 11, no. 1, p. 8600-8608. ISSN: 2169-3536.
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• 2022

  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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  ŠOTNER, R.; JEŘÁBEK, J.; POLÁK, L.; THEUMER, R.; LANGHAMMER, L. Electronic Tunability and Cancellation of Serial Losses in Wire Coils. SENSORS, 2022, vol. 22, no. 19, p. 1-16. ISSN: 1424-8220.
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  THEUMER, R.; LANGHAMMER, L. Fractional-order integrator and its application in FLF fractional-order frequency filter. In Proceedings II of the 28th Conference STUDENT EEICT 2022 Selected Papers. 1. Brno: Brno University of Technology, Faculty of Electrical Engineering and Communication, 2022. p. 180-183. ISBN: 978-80-214-6030-0.
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  KŘÍČKA, T.; LANGHAMMER, L. DESIGN OF 3RD-ORDER ELECTRONICALLY RECONFIGURABLE FILTER BY INVERSE CHEBYSHEV APPROXIMATION. In Proceedings I of the 28th Conference STUDENT EEICT 2022 General papers. 1. Brno: Brno University of Technology, Faculty of Electrical Engineering and Communication, 2022. p. 63-66. ISBN: 978-80-214-6029-4.
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• 2021

  ŠOTNER, R.; JEŘÁBEK, J.; POLÁK, L.; LANGHAMMER, L.; STOLAŘOVÁ, H.; PETRŽELA, J.; ANDRIUKAITIS, D.; VALINEVICIUS, A. On the performance of electronically tunable fractional-order oscillator using grounded resonator concept. AEU - International Journal of Electronics and Communications, 2021, vol. 129, no. 2, p. 1-17. ISSN: 1434-8411.
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  LANGHAMMER, L.; ŠOTNER, R.; DVOŘÁK, J.; JEŘÁBEK, J.; ANDRIUKAITIS, D. Reconnection–less Reconfigurable Fractional–Order Current–Mode Integrator Design with Simple Control. IEEE Access, 2021, vol. 9, no. 10, p. 136395-136405. ISSN: 2169-3536.
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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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  DOMANSKÝ, O.; ŠOTNER, R.; LANGHAMMER, L.; POLÁK, L. Electronically Reconfigurable and Tunable Fractional-Order Filter Using Resonator Concept and Feedforward Path for Low-Frequency Tone Signalization. IEEE Access, 2021, vol. 9, no. 10, p. 138026-138041. ISSN: 2169-3536.
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• 2020

  LANGHAMMER, L.; ŠOTNER, R.; DVOŘÁK, J.; DOSTÁL, T. Dual-Mode Multifunctional Reconnection-less Reconfigurable Filter. Elektronika Ir Elektrotechnika, 2020, vol. 26, no. 3, p. 36-41. ISSN: 1392-1215.
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  LANGHAMMER, L.; ŠOTNER, R. Conversion of a MISO Filter into its Reconnectionless Reconfigurable Form with Complex Active elements. In Proceedings of the 2020 30th International Conference Radioelektronika. Bratislava, Slovakia: IEEE, 2020. p. 1-4. ISBN: 978-1-7281-6468-7.
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  ŠOTNER, R.; JEŘÁBEK, J.; LANGHAMMER, L.; KARTCI, A.; HERENCSÁR, N.; METIN, B. Practical Design of Fractional-Order Resonator for Application in the Multiphase Oscillator. In Proceedings of 2020 27th IEEE International Conference on Electronics, Circuits and Systems (ICECS). Glasgow, Scotland, UK, United Kingdom: IEEE, 2020. p. 1-4. ISBN: 978-1-7281-6044-3.
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  LANGHAMMER, L.; ŠOTNER, R. Third-Order Reconnection-less Electronically Reconfigurable Multifunctional Filter. In Proceedings of the 2020 IEEE International Symposium on Circuits and Systems (ISCAS). Sevilla, Spain: IEEE, 2020. p. 1-5. ISBN: 978-1-7281-3320-1.
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  LANGHAMMER, L.; ŠOTNER, R.; DVOŘÁK, J.; SLÁDOK, O.; JEŘÁBEK, J.; BERTSIAS, P. Current–Mode Fractional–Order Electronically Controllable Integrator Design. In Proceedings of the 2020 IEEE International Conference on Electronics Circuits and Systems (ICECS). Glasgow, Scotland: IEEE, 2020. p. 1-4. ISBN: 978-1-7281-6044-3.
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  ŠOTNER, R.; JEŘÁBEK, J.; LANGHAMMER, L.; KOTON, J.; POLÁK, J.; ANDRIUKAITIS, D.; VALINEVICIUS, A. Design of Building Blocks for Fractional-Order Applications with Single and Compact Active Device. In Proceedings of 43rd International Conference on Telecommunications and Signal Processing (TSP). Milan, Italy: IEEE, 2020. p. 573-577. ISBN: 978-1-7281-6376-5.
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  ŠOTNER, R.; JEŘÁBEK, J.; LANGHAMMER, L.; KOTON, J.; ANDRIUKAITIS, D.; MERFELDAS, A. Design of Electronically Adjustable Fractional Order Immittances Using Single Active Device. In Proceedings of 43rd International Conference on Telecommunications and Signal Processing (TSP). Milan, Italy: IEEE, 2020. p. 578-582. ISBN: 978-1-7281-6376-5.
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  LANGHAMMER, L.; DVOŘÁK, J.; ŠOTNER, R.; JEŘÁBEK, J.; BERTSIAS, P. Reconnection-less Reconfigurable Low-Pass Filtering Topology Suitable for Higher-Order Fractional-Order Design. Journal of Advanced Research, 2020, vol. 25, no. 9/2020, p. 257-274. ISSN: 2090-1232.
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  ŠOTNER, R.; PETRŽELA, J.; JEŘÁBEK, J.; LANGHAMMER, L.; POLÁK, J.; JAIKLA, W.; TUNTRAKOOL, S. Integer- and Fractional-Order VCO Using Non-Inertial Amplitude Stabilization and Modern Active Elements. Elektronika Ir Elektrotechnika, 2020, vol. 26, no. 2, p. 42-47. ISSN: 1392-1215.
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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.; LANGHAMMER, L. Tunable Fractional-Order Capacitance Multiplier Using Current Gain Adjustment. In Proceedings of 2020 27th IEEE International Conference on Electronics, Circuits and Systems (ICECS). Glasgow, Scotland, UK, United Kingdom: IEEE, 2020. p. 1-4. ISBN: 978-1-7281-6044-3.
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• 2019

  ŠOTNER, R.; PETRŽELA, J.; JEŘÁBEK, J.; LANGHAMMER, L. Frequency Corrector Using Voltage Differencing Current Conveyor Transconductance Amplifiers. In Proceedings of the 26th IEEE International Conference on Electronics Circuits and Systems. Genoa, Italy: IEEE, 2019. p. 286-289. ISBN: 978-1-7281-0996-1.
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  DOMANSKÝ, O.; ŠOTNER, R.; LANGHAMMER, L.; JEŘÁBEK, J.; PSYCHALINOS, C.; TSIRIMOKOU, G. Practical Design of RC Approximants of Constant Phase Elements and Their Implementation in Fractional-Order PID Regulators Using CMOS Voltage Differencing Current Conveyors. CIRCUITS SYSTEMS AND SIGNAL PROCESSING, 2019, vol. 38, no. 4, p. 1520-1546. ISSN: 0278-081X.
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  LANGHAMMER, L.; ŠOTNER, R.; DVOŘÁK, J.; JEŘÁBEK, J.; USHAKOV, P. Novel Electronically Reconfigurable Filter and Its Fractional-Order Counterpart. In Proceedings of the 26th IEEE International Conference on Electronics Circuits and Systems. Genoa, Italy: 2019. p. 538-541. ISBN: 978-1-7281-0996-1.
  Detail

  LANGHAMMER, L.; ŠOTNER, R.; DOMANSKÝ, O. Electronically Tunable Oscillator Utilizing Reinforced Controllable Parameters. In Proceedings of the 2019 11th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT). Dublin, Ireland: IEEE, 2019. p. 1-5. ISBN: 978-1-7281-5764-1.
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  LANGHAMMER, L.; ŠOTNER, R.; DVOŘÁK, J.; DOSTÁL, T. Novel Design Solution of Reconnection-less Electronically Reconfigurable Filter. In Proceedings of the 26th International Conference “Mixed Design of Integrated Circuits and Systems” - MIXDES 2019. Rzeszow, Poland: IEEE, 2019. p. 365-369. ISBN: 978-83-63578-15-2.
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  ŠOTNER, R.; LANGHAMMER, L.; JEŘÁBEK, J.; DOSTÁL, T. Fractional-Order Asymptotical Phase Shifter With Flat Magnitude Response. In Proceedings of the 2019 17th IEEE International New Circuits and Systems Conference (NEWCAS 2019). Munich, Germany: IEEE, 2019. p. 1-4. ISBN: 978-1-7281-1031-8.
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  ŠOTNER, R.; JEŘÁBEK, J.; ÖZOĞUZ, S.; KUBÁNEK, D.; LANGHAMMER, L. Electronically Controllable Audio Equalizers Based on Bilinear Immittances Utilizing CMOS Voltage Differencing Current Conveyor. In Proceedings of the 2019 IEEE International Symposium on Circuits and Systems (ISCAS). Sapporo, Japan: IEEE, 2019. p. 1-5. ISBN: 978-1-7281-0397-6.
  Detail

  ŠOTNER, R.; JEŘÁBEK, J.; LANGHAMMER, L.; POLÁK, L.; JAIKLA, W.; PROMMEE, P. Operational Frequency Bandwidth Rescalable Implementations of Constant Phase Devices. In Proceedings of the 2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA). Pardubice, Czech Republic: IEEE, 2019. p. 1-6. ISBN: 978-1-5386-9322-3.
  Detail

  ŠOTNER, R.; LANGHAMMER, L.; JEŘÁBEK, J.; USHAKOV, P.; DOSTÁL, T. Fractional-Order Phase Shifters with Constant Magnitude Frequency Responses. Elektronika Ir Elektrotechnika, 2019, vol. 25, no. 5, p. 25-30. ISSN: 1392-1215.
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  ŠOTNER, R.; JEŘÁBEK, J.; LANGHAMMER, L.; PETRŽELA, J.; JAIKLA, W.; TUNTRAKOOL, S. Voltage Differencing Current Conveyor Differential Input Transconductance Amplifier: Novel Active Element and Its Resistorless Filtering Application. In Proceedings of the 2019 11th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT). Dublin, Ireland: IEEE, 2019. p. 1-5. ISBN: 978-1-7281-5764-1.
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  LANGHAMMER, L.; ŠOTNER, R.; DOSTÁL, T. New Solution of a Frequency Filter with Reconnection-less Reconfiguration of Its Transfer. In Proceedings of 29th International Conference Radioelektronika 2019. Pardubice: IEEE, 2019. p. 51-54. ISBN: 978-1-5386-9321-6.
  Detail

  LANGHAMMER, L.; ŠOTNER, R.; DVOŘÁK, J.; JEŘÁBEK, J.; USHAKOV, P. Novel Reconnection-less Reconfigurable Filter Design Based on Unknown Nodal Voltages Method and Its Fractional-Order Counterpart. Elektronika Ir Elektrotechnika, 2019, vol. 25, no. 3, p. 34-38. ISSN: 1392-1215.
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• 2018

  ŠOTNER, R.; JEŘÁBEK, J.; HERENCSÁR, N.; LANGHAMMER, L.; PETRŽELA, J.; DOSTÁL, T. Methods for Extension of Tunability Range in Synthetic Inductance Simulators. Elektronika Ir Elektrotechnika, 2018, vol. 24, no. 3, p. 41-45. ISSN: 1392-1215.
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  LANGHAMMER, L.; ŠOTNER, R.; DVOŘÁK, J. Modification of Current Follower/Amplifier with Controllable Intrinsic Resistance. In Proceedings of IEEE 2018 41st International Conference on Telecommunications and Signal Processing (TSP2018). IEEE, 2018. p. 70-73. ISBN: 978-1-5386-4695-3.
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  LANGHAMMER, L.; ŠOTNER, R.; DVOŘÁK, J.; DOSTÁL, T. Fully-Differential Multifunctional Electronically Configurable Fractional-Order Filter with Electronically Adjustable Parameters. Elektronika Ir Elektrotechnika, 2018, vol. 24, no. 5, p. 42-45. ISSN: 1392-1215.
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  DOMANSKÝ, O.; ŠOTNER, R.; LANGHAMMER, L. Reconfigurable Impedance Converter for Synthesis of Integer and Fractional-Order Synthetic Elements. In Proceedings of IEEE 2018 41st International Conference on Telecommunications and Signal Processing (TSP2018). Athens, Greece: 2018. p. 367-371. ISBN: 978-1-5386-4695-3.
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  ŠOTNER, R.; LANGHAMMER, L.; PETRŽELA, J.; DOMANSKÝ, O.; DOSTÁL, T. Applications of novel behavioral implementation of a controllable generalized current conveyor. In Proceedings of the 28th International Conference Radioelektronika 2018. Prague, Czech Republic: IEEE, 2018. p. 1-6. ISBN: 978-1-5386-2485-2.
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  DVOŘÁK, J.; LANGHAMMER, L.; JEŘÁBEK, J.; KOTON, J.; ŠOTNER, R.; POLÁK, J. Synthesis and Analysis of Electronically Adjustable Fractional-Order Low-Pass Filter. JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS, 2018, vol. 27, no. 2, p. 1850032-1 (1850032-18 p.)ISSN: 0218-1266.
  Detail

  ŠOTNER, R.; POLÁK, L.; PETRŽELA, J.; LANGHAMMER, L. Practical design of the voltage controllable quadrature oscillator for operation in MHz bands employing new behavioral model of variable-voltage-gain current conveyor of second generation. Journal of Computational Electronics, 2018, vol. 17, no. 4, p. 1685-1694. ISSN: 1569-8025.
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  ŠOTNER, R.; JEŘÁBEK, J.; PETRŽELA, J.; LANGHAMMER, L.; DOMANSKÝ, O.; JAIKLA, W.; DOSTÁL, T. Reconnection-less Reconfigurable Filter and its Application into Adaptive Circuit. In Proceedings of the IEEE 2018 41st International Conference on Telecommunications and Signal Processing (TSP2018). Athens, Greece: IEEE, 2018. p. 192-197. ISBN: 978-1-5386-4695-3.
  Detail

  ŠOTNER, R.; PETRŽELA, J.; JEŘÁBEK, J.; LANGHAMMER, L.; DOSTÁL, T. On Advanced Current Conveyor Applications Having Capacitor Connected to Current Input Terminal. In Proceedings of the 25th International Conference “Mixed Design of Integrated Circuits and Systems”. Gdynia, Poland: Department of Microelectronics and Computer Science, Lodz University of Technology, Poland, 2018. p. 285-290. ISBN: 978-83-63578-13-8.
  Detail

  ŠOTNER, R.; JEŘÁBEK, J.; LANGHAMMER, L.; DVOŘÁK, J. Design and Analysis of CCII-Based Oscillator with Amplitude Stabilization Employing Optocouplers for Linear Voltage Control of the Output Frequency. Electronics (MDPI), 2018, vol. 7, no. 9, p. 1-20. ISSN: 2079-9292.
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  LANGHAMMER, L.; ŠOTNER, R.; DOMANSKÝ, O.; HRICKO, T. Electronically Reconfigurable Universal Filter Based on VDTAs. In Proceedings of 28th International Conference Radioelektronika 2018. Praha: IEEE, 2018. p. 1-4. ISBN: 978-1-5386-2485-2.
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  LANGHAMMER, L.; DVOŘÁK, J.; JEŘÁBEK, J.; KOTON, J.; ŠOTNER, R. Fractional-Order Low-Pass Filter with Electronic Tunability of Its Order and Pole Frequency. Journal of Electrical Engineering, 2018, vol. 69, no. 1, p. 3-13. ISSN: 1335-3632.
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  DVOŘÁK, J.; POLEŠÁKOVÁ, Z.; JEŘÁBEK, J.; LANGHAMMER, L.; KARTCI, A.; KOTON, J. Non-Integer-Order Low-Pass Filter with Electronically Controllable Parameters. In 2018 IEEE International Symposium on Circuits and Systems (ISCAS). Itálie-Florencie: 2018. p. 1-5. ISBN: 978-1-5386-4881-0.
  Detail

  DVOŘÁK, J.; JEŘÁBEK, J.; LANGHAMMER, L.; KAPOULEA, S.; PSYCHALINOS, C. Design of Fully-Differential Frequency Filter with Fractional-Order Elements. In Proceedings of IEEE 2018 41st International Conference on Telecommunications and Signal Processing (TSP2018). International Conference on Telecommunications and Signal Processing (TSP). Atény, Řecko: IEEE, 2018. p. 360-366. ISBN: 978-1-5386-4695-3. ISSN: 1805-5435.
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  LANGHAMMER, L.; ŠOTNER, R.; DVOŘÁK, J.; JEŘÁBEK, J.; ZAPLETAL, M. Fully-Differential Universal Frequency Filter with Dual-Parameter Control of the Pole Frequency and Quality Factor. In 2018 IEEE International Symposium on Circuits and Systems (ISCAS). IEEE, 2018. p. 1-5. ISBN: 978-1-5386-4881-0.
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  ŠOTNER, R.; LANGHAMMER, L.; DOMANSKÝ, O.; PETRŽELA, J.; JEŘÁBEK, J.; DOSTÁL, T. New Reconfigurable Universal SISO Biquad Filter Implemented by Advanced CMOS Active Elements. In Proceedings of the 2018 15th International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (SMACD). Prague, Czech Republic: IEEE, 2018. p. 257-260. ISBN: 978-1-5386-5153-7.
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• 2017

  DOMANSKÝ, O.; ŠOTNER, R.; PETRŽELA, J.; LANGHAMMER, L.; DOSTÁL, T. Higher Order Differentiator Block for Synthesis of Controllable Frequency Dependent Elements. In Proceedings of 27th International Conference Radioelektronika 2017. Czech Republic, Brno: IEEE, 2017. p. 158-162. ISBN: 978-1-5090-4591-4.
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  LANGHAMMER, L.; ŠOTNER, R.; DVOŘÁK, J.; JEŘÁBEK, J.; POLÁK, J. Fully-Differential Tunable Fractional-Order Filter with Current Followers and Current Amplifiers. In Proceedings of 27th International Conference Radioelektronika 2017. Brno: IEEE, 2017. p. 102-107. ISBN: 978-1-5090-4591-4.
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  ŠOTNER, R.; PETRŽELA, J.; JEŘÁBEK, J.; DOMANSKÝ, O.; LANGHAMMER, L.; DOSTÁL, T. Special Electronically Reconfigurable Lossy/Lossless Integrator in Application of Functional Generator. In Proceedings of 27th International Conference Radioelektronika 2017. Czech Republic, Brno: IEEE, 2017. p. 196-200. ISBN: 978-1-5090-4591-4.
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  LANGHAMMER, L.; DOMANSKÝ, O. DESIGN METHOD BASED ON MODIFICATION OF THE TRANSFORMATION OF HORIZONTAL STRUCTURES IN, CURRENT- MODE FREQUENCY FILTERS. Proceedings of the 23nd Conference STUDENT EEICT 2017. Brno: Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních, 2017. p. 370-374. ISBN: 978-80-214-5496- 5.
  Detail

  LANGHAMMER, L.; ŠOTNER, R.; DVOŘÁK, J.; DOMANSKÝ, O.; JEŘÁBEK, J.; UHER, J. A 1+α Low-Pass Fractional-Order Frequency Filter with Adjustable Parameters. In Proceedings of 2017 40th International Conference on Telecommunications and Signal Processing (TSP). 2017. p. 724-729. ISBN: 978-1-5090-3981-4.
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  LANGHAMMER, L.; DVOŘÁK, J.; ŠOTNER, R.; JEŘÁBEK, J. Electronically Tunable Fully-Differential Fractional-Order Low-Pass Filter. Elektronika Ir Elektrotechnika, 2017, vol. 23, no. 3, p. 47-54. ISSN: 1392-1215.
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  ŠOTNER, R.; HERENCSÁR, N.; JEŘÁBEK, J.; LANGHAMMER, L.; POLÁK, J. On practical construction of electronically controllable compact current amplifier based on commercially available elements and its application. AEU - International Journal of Electronics and Communications, 2017, vol. 81, no. 11/ 2017, p. 56-66. ISSN: 1434-8411.
  Detail | WWW

  ŠOTNER, R.; PETRŽELA, J.; DOMANSKÝ, O.; LANGHAMMER, L.; DOSTÁL, T. Single Active Parameter Tunable Simple Band-Pass Filter: Methods for Tunability Range Extension. In Proceedings of the 24th International Conference “Mixed Design of Integrated Circuits and Systems”. Bydgoszcz, Poland: Dept. of Microelectronics and Computer Science, Lodz University of Technology, Poland, 2017. p. 318-323. ISBN: 978-83-63578-11-4.
  Detail

  JEŘÁBEK, J.; ŠOTNER, R.; POLÁK, J.; LANGHAMMER, L.; HERENCSÁR, N.; PROKOP, R.; VRBA, K. Resistor-less Single-purpose or Reconfigurable Biquads Utilizing Single Z-Copy Controlled- Gain Voltage Differencing Current Conveyor. JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS, 2017, vol. 26, no. 3, p. 1-21. ISSN: 1793-6454.
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• 2016

  LANGHAMMER, L.; JEŘÁBEK, J.; POLÁK, J.; ŠOTNER, R.; ŠTORK, P. Tunable fully-differential filter employing MOTA and DACA elements. INDIAN JOURNAL OF ENGINEERING AND MATERIALS SCIENCES, 2016, vol. 23, no. 2&3, p. 107-119. ISSN: 0971-4588.
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  LANGHAMMER, L.; JEŘÁBEK, J.; POLÁK, J.; PÁNEK, D. A Single-Ended and Fully-Differential Universal Current-Mode Frequency Filter with MO-CF and DACA Elements. ADV ELECTR COMPUT EN, 2016, vol. 16, no. 3, p. 43-48. ISSN: 1582-7445.
  Detail

  JEŘÁBEK, J.; ŠOTNER, R.; KUBÁNEK, D.; DVOŘÁK, J.; LANGHAMMER, L.; HERENCSÁR, N.; VRBA, K. Fractional-Order Low-Pass Filter with Electronically Adjustable Parameters. In Proceedings of 2016 39th International Conference on Telecommunications and Signal Processing (TSP). 2016. p. 569-574. ISBN: 978-1-5090-1287-9.
  Detail | WWW

  POLÁK, J.; JEŘÁBEK, J.; LANGHAMMER, L.; DVOŘÁK, J. Tunable frequency filter with transconductance amplifiers and adjustable current amplifiers. Elektrorevue - Internetový časopis (http://www.elektrorevue.cz), 2016, vol. 18, no. 03, p. 68-75. ISSN: 1213-1539.
  Detail

  POLÁK, J.; JEŘÁBEK, J.; LANGHAMMER, L.; ŠOTNER, R.; DVOŘÁK, J.; PÁNEK, D. Digitally Controllable Current Amplifier and Current Conveyors in Practical Application of Controllable Frequency Filter. Journal of Electrical Engineering, 2016, vol. 67, no. 4, p. 261-266. ISSN: 1335-3632.
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  POLÁK, J.; JEŘÁBEK, J.; LANGHAMMER, L. Automated Measuring System Used to Measure Input, and Output Impedances of Current Amplifiers. In Sborník příspěvků studentské konference Blansko 2016. Brno: Vysoké učení technické v Brně, 2016. p. 74-77. ISBN: 978-80-214-5389- 0.
  Detail

  DVOŘÁK, J.; LANGHAMMER, L.; JEŘÁBEK, J.; KOTON, J.; ŠOTNER, R.; POLÁK, J. Electronically Tunable Fractional-Order Low-Pass Filter with Current Followers. In Proceedings of 2016 39th International Conference on Telecommunications and Signal Processing (TSP). 2016. p. 587-592. ISBN: 978-1-5090-1287-9.
  Detail | WWW

  DVOŘÁK, J.; LANGHAMMER, L. ADJUSTABLE FRACTIONAL-ORDER HIGH-PASS FILTER WITH TRANSCONDUCTANCE AMPLIFIERS. Proceedings of the 22nd Conference STUDENT EEICT 2016. Brno: Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2016. p. 288-292. ISBN: 978-80-214-5350-0.
  Detail

  JEŘÁBEK, J.; ŠOTNER, R.; DVOŘÁK, J.; LANGHAMMER, L.; KOTON, J. Fractional-Order High-Pass Filter with Electronically Adjustable Parameters. In 21st 2016 International Conference on Applied Electronics. International Conference on Applied Electronics. Pilsen: University of West Bohemia, 2016. p. 111-116. ISBN: 978-80-261-0602-9. ISSN: 1803-7232.
  Detail | WWW

  POLÁK, J.; LANGHAMMER, L. SINGLE- ENDED FREQUENCY FILTER IN PRACTICAL REALIZATION WITH DIGITALLY ADJUSTABLE CURRENT AMPLIFIER. In Proceedings of the 22nd Conference STUDENT EEICT 2016. Brno: Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií, 2016. p. 338-342. ISBN: 978-80-214-5350- 0.
  Detail

• 2015

  LANGHAMMER, L.; JEŘÁBEK, J.; POLÁK, J. Tunable Fully-Differential Filters Designed Using Signal- Flow Graphs Method. Elektrorevue - Internetový časopis (http://www.elektrorevue.cz), 2015, vol. 6, no. 3, p. 38-48. ISSN: 1213- 1539.
  Detail | WWW

  POLÁK, J.; JEŘÁBEK, J.; LANGHAMMER, L.; ŠOTNER, R. Practical AC & DC measurements of new MCDU active element. Elektrorevue - Internetový časopis (http://www.elektrorevue.cz), 2015, vol. 6, no. 1, p. 25-29. ISSN: 1213- 1539.
  Detail

  LANGHAMMER, L.; JEŘÁBEK, J. Laboratorní úlohy komunikačních protokolů. Brno: Vysoké učení technické Brno, 2015. p. 1-139.
  Detail

  LANGHAMMER, L.; JEŘÁBEK, J.; POLÁK, J.; ČÍKA, P. A Current- Mode Universal Frequency Filter Using Transconductance Amplifiers and Transimpedance Amplifier. In Proceedings of the 6th International Conference on Circuits, Systems, Control, Signals (CSCS 15) - Advances in Electrical and Computer Engineering. 2015. p. 81-87. ISBN: 978-1-61804-279- 8.
  Detail

  ŠOTNER, R.; JEŘÁBEK, J.; LANGHAMMER, L.; POLÁK, J.; HERENCSÁR, N.; PROKOP, R.; PETRŽELA, J.; JAIKLA, W. Comparison of two solutions of quadrature oscillators with linear control of frequency of oscillation employing modern commercially available devices. CIRCUITS SYSTEMS AND SIGNAL PROCESSING, 2015, vol. 34, no. 11, p. 3449-3469. ISSN: 0278-081X.
  Detail | WWW

  POLÁK, J.; LANGHAMMER, L.; JEŘÁBEK, J. Behavioral modeling of Digitally Adjustable Current Amplifier. International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems, 2015, vol. 4, no. 1, p. 1-7. ISSN: 1805- 5443.
  Detail | WWW | Full text in the Digital Library

  LANGHAMMER, L.; JEŘÁBEK, J.; POLÁK, J.; ČÍKA, P. Single-Ended and Fully-Differential Current-Input Current- Output, Universal Frequency Filter with Transconductace and Transresistance, Amplifiers. WSEAS Transactions on Circuits, 2015, vol. 14, no. 2015, p. 56-67. ISSN: 1109- 2734.
  Detail

• 2014

  POLÁK, J.; LANGHAMMER, L.; JEŘÁBEK, J. Multifunctional non-differential controllable 2nd- order frequency filter. In Sborník příspěvků studentské konference Zvůle 2014. Brno: Vysoké učení technické v Brně, 2014. p. 67-70. ISBN: 978-80-214-5005- 9.
  Detail

  LANGHAMMER, L.; POLÁK, J. Definice Off-The-Record (OTR) protokolu a jeho využití. Crypto- world, 2014, vol. 16, no. 4-5/ 2014, p. 2-9. ISSN: 1801- 2140.
  Detail

  LANGHAMMER, L.; JERÁBEK, J. Fully Differential Universal Current-Mode Frequency Filters Based on Signal- Flow Graphs Method. International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems, 2014, vol. 3, no. 1, p. 1-12. ISSN: 1805- 5443.
  Detail

  LANGHAMMER, L. Selected chapters from the advanced protocols domain – Cisco academy 3. Brno: Vysoké učení technické Brno, 2014. p. 1-69. ISBN: 978-80-214-5166- 7.
  Detail

• 2013

  LANGHAMMER, L.; JEŘÁBEK, J. Zavádění simulačního programu OPNET IT Guru do výuky předmětu Pokročilé komunikační techniky. In Workshop Společných aktivit VUT a VŠB-TUO při vytváření obsahu a náplně odborných akreditovaných kurzů ICT - EDU ICT 2013. Ostrava: VŠB- Technická univerzita Ostrava, 2013. p. 6-12. ISBN: 978-80-248-2962- 3.
  Detail

  LANGHAMMER, L.; JEŘÁBEK, J. Precision Full- Wave Rectifiers with Current Active Elements and Current Biasing. International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems, 2013, vol. 2, no. 2, p. 79-83. ISSN: 1805- 5443.
  Detail

  LANGHAMMER, L. Precision Full- Wave Rectifier Using Universal Current Conveyor and Six Diodes. In Proceedings of the 19th Conference STUDENT EEICT 2013 Volume 3. Brno: Litera, Brno, 2013. p. 14-18. ISBN: 978-80-214-4695- 3.
  Detail

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