Comparison of Analytical and Algorithm-Based Design of Two-Port Using Two Bilinear Sections - Dmitrii Semenov; Roman Sotner; Ladislav Polak; Jan Jerabek; Jiri Petrzela; Lukas Langhammer (IEEE Access, 2024)

1 V Electronically Tunable Differential Difference Current Conveyors Using Multiple-Input Operational Transconductance Amplifiers - Montree Kumngern; Fabian Khateb; Tomasz Kulej; Lukas Langhammer (Sensors, 2024)

Reconnection-Less Reconfigurable Filter Based on Method of Unknown Nodal Voltages Using 4 exttimes4 Matrix - Lukas Langhammer; Roman Sotner (IEEE Access, 2023)

Various-Order Low-Pass Filter with the Electronic Change of Its Approximation - Lukas Langhammer; Roman Sotner; Radek Theumer (Sensors, 2023)

Electronic Tunability and Cancellation of Serial Losses in Wire Coils - Roman Sotner; Jan Jerabek; Ladislav Polak; Radek Theumer; Lukas Langhammer (Sensors, 2022)

Reconnection-less Reconfigurable Fractional-Order Current-Mode Integrator Design With Simple Control - Lukas Langhammer; Roman Sotner; Jan Dvorak; Jan Jerabek; Darius Andriukaitis (IEEE Access, 2021)

Electronically Reconfigurable and Tunable Fractional-Order Filter Using Resonator Concept and Feedforward Path for Low-Frequency Tone Signalization - Ondrej Domansky; Roman Sotner; Lukas Langhammer; Ladislav Polak (IEEE Access, 2021)

Voltage Tunable Building Blocks Using Compact Active Device in Design of Filtering Applications - Roman Sotner; Jiri Petrzela; Lukas Langhammer (31st International Conference Radioelektronika, RADIOELEKTRONIKA 2021, Brno, Czech Republic, April 19-21, 2021, 2021)

Current-Mode Fractional-Order Electronically Controllable Integrator Design - Lukas Langhammer; Roman Sotner; Jan Dvorak; Ondrej Sladok; Jan Jerabek; Panagiotis Bertsias (27th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2020, Glasgow, Scotland, UK, November 23-25, 2020, 2020)

Tunable Fractional-Order Capacitance Multiplier Using Current Gain Adjustment - Roman Sotner; Jan Jerabek; Lukas Langhammer (27th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2020, Glasgow, Scotland, UK, November 23-25, 2020, 2020)

Practical Design of Fractional-Order Resonator for Application in the Multiphase Oscillator - Roman Sotner; Jan Jerabek; Lukas Langhammer; Aslihan Kartci; Norbert Herencsar; Bilgin Metin (27th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2020, Glasgow, Scotland, UK, November 23-25, 2020, 2020)

Third-Order Reconnection-Less Electronically Reconfigurable Multifunctional Filter - Lukas Langhammer; Roman Sotner (IEEE International Symposium on Circuits and Systems, ISCAS 2020, Sevilla, Spain, October 10-21, 2020, 2020)

Conversion of a MISO Filter into its Reconnection-less Reconfigurable Form with Complex Active elements - Lukas Langhammer; Roman Sotner (30th International Conference Radioelektronika, RADIOELEKTRONIKA 2020, Bratislava, Slovakia, April 15-16, 2020, 2020)

Comparison of Simple Design Methods for Voltage Controllable Resistance - Roman Sotner; Ondrej Domansky; Lukas Langhammer; Jiri Petrzela (30th International Conference Radioelektronika, RADIOELEKTRONIKA 2020, Bratislava, Slovakia, April 15-16, 2020, 2020)

Design of Building Blocks for Fractional-Order Applications with Single and Compact Active Device - Roman Sotner; Jan Jerabek; Lukas Langhammer; Jaroslav Koton; Josef Polak; Darius Andriukaitis; Algimantas Valinevicius (43rd International Conference on Telecommunications and Signal Processing, TSP 2020, Milan, Italy, July 7-9, 2020, 2020)

Design of Electronically Adjustable Fractional Order Immittances Using Single Active Device - Roman Sotner; Jan Jerabek; Lukas Langhammer; Jaroslav Koton; Darius Andriukaitis; Audrius Merfeldas (43rd International Conference on Telecommunications and Signal Processing, TSP 2020, Milan, Italy, July 7-9, 2020, 2020)

Practical Design of RC Approximants of Constant Phase Elements and Their Implementation in Fractional-Order PID Regulators Using CMOS Voltage Differencing Current Conveyors - Ondrej Domansky; Roman Sotner; Lukas Langhammer; Jan Jerabek; Costas Psychalinos; Georgia Tsirimokou (Circuits Syst. Signal Process., 2019)

Frequency Corrector Using Voltage Differencing Current Conveyor Transconductance Amplifiers - Roman Sotner; Jiri Petrzela; Jan Jerabek; Lukas Langhammer (26th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2019, Genoa, Italy, November 27-29, 2019, 2019)

Novel Electronically Reconfigurable Filter and Its Fractional-Order Counterpart - Lukas Langhammer; Roman Sotner; Jan Dvorak; Jan Jerabek; Peter A. Ushakov (26th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2019, Genoa, Italy, November 27-29, 2019, 2019)

Electronically Tunable Oscillator Utilizing Reinforced Controllable Parameters - Lukas Langhammer; Roman Sotner; Ondrej Domansky (11th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops, ICUMT 2019, Dublin, Ireland, October 28-30, 2019, 2019)

Voltage Differencing Current Conveyor Differential Input Transconductance Amplifier: Novel Active Element and Its Resistorless Filtering Application - Roman Sotner; Jan Jerabek; Lukas Langhammer; Jiri Petrzela; Winai Jaikla; Sunti Tuntrakool (11th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops, ICUMT 2019, Dublin, Ireland, October 28-30, 2019, 2019)

Electronically Controllable Audio Equalizers Based on Bilinear Immittances Utilizing CMOS Voltage Differencing Current Conveyor - Roman Sotner; Jan Jerabek; Serdar Özoguz; David Kubánek; Lukas Langhammer (IEEE International Symposium on Circuits and Systems, ISCAS 2019, Sapporo, Japan, May 26-29, 2019, 2019)

Novel Design Solution of Reconnection-less Electronically Reconfigurable Filter - Lukas Langhammer; Roman Sotner; Jan Dvorak; Tomás Dostál (26th International Conference on Mixed Design of Integrated Circuits and Systems, MIXDES 2019, Rzeszów, Poland, June 27-29, 2019, 2019)

Fractional-Order Asymptotical Phase Shifter with Flat Magnitude Response - Roman Sotner; Lukas Langhammer; Jan Jerabek; Tomás Dostál (17th IEEE International New Circuits and Systems Conference, NEWCAS 2019, Munich, Germany, June 23-26, 2019, 2019)

Synthesis and Analysis of Electronically Adjustable Fractional-Order Low-Pass Filter - Jan Dvorak; Lukas Langhammer; Jan Jerabek; Jaroslav Koton; Roman Sotner; Josef Polak (J. Circuits Syst. Comput., 2018)

Non-Integer-Order Low-Pass Filter with Electronically Controllable Parameters - Jan Dvorak; Zuzana Polesakova; Jan Jerabek; Lukas Langhammer; Aslihan Kartci; Jaroslav Koton (IEEE International Symposium on Circuits and Systems, ISCAS 2018, 27-30 May 2018, Florence, Italy, 2018)

Fully-Differential Universal Frequency Filter with Dual-Parameter Control of the Pole Frequency and Quality Factor - Lukas Langhammer; Roman Sotner; Jan Dvorak; Jan Jerabek; Miroslav Zapletal (IEEE International Symposium on Circuits and Systems, ISCAS 2018, 27-30 May 2018, Florence, Italy, 2018)

On Advanced Current Conveyor Applications Having Capacitor Connected to Current Input Terminal - Roman Sotner; Jiri Petrzela; Jan Jerabek; Lukas Langhammer; Tomás Dostál (25th International Conference "Mixed Design of Integrated Circuits and System", MIXDES 2018, Gdynia, Poland, June 21-23, 2018, 2018)

New Reconfigurable Universal SISO Biquad Filter Implemented by Advanced CMOS Active Elements - Roman Sotner; Lukas Langhammer; Ondrej Domansky; Jiri Petrzela; Jan Jerabek; Tomás Dostál (15th International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design, SMACD 2018, Prague, Czech Republic, July 2-5, 2018, 2018)

Reconfigurable Impedance Converter for Synthesis of Integer and Fractional-Order Synthetic Elements - Ondrej Domansky; Roman Sotner; Lukas Langhammer (41st International Conference on Telecommunications and Signal Processing, TSP 2018, Athens, Greece, July 4-6, 2018, 2018)

Design of Fully-Differential Frequency Filter with Fractional-Order Elements - Jan Dvorak; Jan Jerabek; Lukas Langhammer; Stavroula Kapoulea; Costas Psychalinos (41st International Conference on Telecommunications and Signal Processing, TSP 2018, Athens, Greece, July 4-6, 2018, 2018)

Modification of Current Follower/Amplifier with Controllable Intrinsic Resistance - Lukas Langhammer; Roman Sotner; Jan Dvorak (41st International Conference on Telecommunications and Signal Processing, TSP 2018, Athens, Greece, July 4-6, 2018, 2018)

Reconnection-less Reconfigurable Filter and its Application into Adaptive Circuit - Roman Sotner; Jan Jerabek; Jiri Petrzela; Lukas Langhammer; Ondrej Domansky; Winai Jaikla; Tomás Dostál (41st International Conference on Telecommunications and Signal Processing, TSP 2018, Athens, Greece, July 4-6, 2018, 2018)

Resistor-Less Single-Purpose or Reconfigurable Biquads Utilizing Single z-Copy Controlled-Gain Voltage Differencing Current Conveyor - Jan Jerabek; Roman Sotner; Josef Polak; Lukas Langhammer; Norbert Herencsar; Roman Prokop; Kamil Vrba (J. Circuits Syst. Comput., 2017)

Single active parameter tunable simple band-pass filter: Methods for tunability range extension - Roman Sotner; Jiri Petrzela; Ondrej Domansky; Lukas Langhammer; Tomás Dostál (24th International Conference Mixed Design of Integrated Circuits and Systems, MIXDES 2017, Bydgoszcz, Poland, June 22-24, 2017, 2017)

A 1+\(α\) Low-Pass Fractional-Order Frequency Filter with Adjustable Parameters - Lukas Langhammer; Roman Sotner; Jan Dvorak; Ondrej Domansky; Jan Jerabek; Jiri Uher (40th International Conference on Telecommunications and Signal Processing, TSP 2017, Barcelona, Spain, July 5-7, 2017, 2017)

Fractional-order low-pass filter with electronically adjustable parameters - Jan Jerabek; Roman Sotner; David Kubánek; Jan Dvorak; Lukas Langhammer; Norbert Herencsar; Kamil Vrba (39th International Conference on Telecommunications and Signal Processing, TSP 2016, Vienna, Austria, June 27-29, 2016, 2016)

Electronically tunable fractional-order low-pass filter with current followers - Jan Dvorak; Lukas Langhammer; Jan Jerabek; Jaroslav Koton; Roman Sotner; Josef Polak (39th International Conference on Telecommunications and Signal Processing, TSP 2016, Vienna, Austria, June 27-29, 2016, 2016)

Comparison of Two Solutions of Quadrature Oscillators With Linear Control of Frequency of Oscillation Employing Modern Commercially Available Devices - Roman Sotner; Jan Jerabek; Lukas Langhammer; Josef Polak; Norbert Herencsar; Roman Prokop; Jiri Petrzela; Winai Jaikla (Circuits Syst. Signal Process., 2015)