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

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

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

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

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

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

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

Voltage Tunable Building Blocks Using Compact Active Device in Design of Filtering Applications. - Sotner, Roman; Petrzela, Jiri; Langhammer, Lukas (2021)

Current-Mode Fractional-Order Electronically Controllable Integrator Design. - Langhammer, Lukas; Sotner, Roman; Dvorak, Jan; Sladok, Ondrej; Jerabek, Jan; Bertsias, Panagiotis (2020)

Tunable Fractional-Order Capacitance Multiplier Using Current Gain Adjustment. - Sotner, Roman; Jerabek, Jan; Langhammer, Lukas (2020)

Practical Design of Fractional-Order Resonator for Application in the Multiphase Oscillator. - Sotner, Roman; Jerabek, Jan; Langhammer, Lukas; Kartci, Aslihan; Herencsar, Norbert; Metin, Bilgin (2020)

Third-Order Reconnection-Less Electronically Reconfigurable Multifunctional Filter. - Langhammer, Lukas; Sotner, Roman (2020)

Conversion of a MISO Filter into its Reconnection-less Reconfigurable Form with Complex Active elements. - Langhammer, Lukas; Sotner, Roman (2020)

Comparison of Simple Design Methods for Voltage Controllable Resistance. - Sotner, Roman; Domansky, Ondrej; Langhammer, Lukas; Petrzela, Jiri (2020)

Design of Building Blocks for Fractional-Order Applications with Single and Compact Active Device. - Sotner, Roman; Jerabek, Jan; Langhammer, Lukas; Koton, Jaroslav; Polak, Josef; Andriukaitis, Darius; Valinevicius, Algimantas (2020)

Design of Electronically Adjustable Fractional Order Immittances Using Single Active Device. - Sotner, Roman; Jerabek, Jan; Langhammer, Lukas; Koton, Jaroslav; Andriukaitis, Darius; Merfeldas, Audrius (2020)

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

Frequency Corrector Using Voltage Differencing Current Conveyor Transconductance Amplifiers. - Sotner, Roman; Petrzela, Jiri; Jerabek, Jan; Langhammer, Lukas (2019)

Novel Electronically Reconfigurable Filter and Its Fractional-Order Counterpart. - Langhammer, Lukas; Sotner, Roman; Dvorak, Jan; Jerabek, Jan; Ushakov, Peter A. (2019)

Electronically Tunable Oscillator Utilizing Reinforced Controllable Parameters. - Langhammer, Lukas; Sotner, Roman; Domansky, Ondrej (2019)

Voltage Differencing Current Conveyor Differential Input Transconductance Amplifier: Novel Active Element and Its Resistorless Filtering Application. - Sotner, Roman; Jerabek, Jan; Langhammer, Lukas; Petrzela, Jiri; Jaikla, Winai; Tuntrakool, Sunti (2019)

Electronically Controllable Audio Equalizers Based on Bilinear Immittances Utilizing CMOS Voltage Differencing Current Conveyor. - Sotner, Roman; Jerabek, Jan; Özoguz, Serdar; Kubánek, David; Langhammer, Lukas (2019)

Novel Design Solution of Reconnection-less Electronically Reconfigurable Filter. - Langhammer, Lukas; Sotner, Roman; Dvorak, Jan; Dostál, Tomás (2019)

Fractional-Order Asymptotical Phase Shifter with Flat Magnitude Response. - Sotner, Roman; Langhammer, Lukas; Jerabek, Jan; Dostál, Tomás (2019)

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

Non-Integer-Order Low-Pass Filter with Electronically Controllable Parameters. - Dvorak, Jan; Polesakova, Zuzana; Jerabek, Jan; Langhammer, Lukas; Kartci, Aslihan; Koton, Jaroslav (2018)

Fully-Differential Universal Frequency Filter with Dual-Parameter Control of the Pole Frequency and Quality Factor. - Langhammer, Lukas; Sotner, Roman; Dvorak, Jan; Jerabek, Jan; Zapletal, Miroslav (2018)

On Advanced Current Conveyor Applications Having Capacitor Connected to Current Input Terminal. - Sotner, Roman; Petrzela, Jiri; Jerabek, Jan; Langhammer, Lukas; Dostál, Tomás (2018)

New Reconfigurable Universal SISO Biquad Filter Implemented by Advanced CMOS Active Elements. - Sotner, Roman; Langhammer, Lukas; Domansky, Ondrej; Petrzela, Jiri; Jerabek, Jan; Dostál, Tomás (2018)

Reconfigurable Impedance Converter for Synthesis of Integer and Fractional-Order Synthetic Elements. - Domansky, Ondrej; Sotner, Roman; Langhammer, Lukas (2018)

Design of Fully-Differential Frequency Filter with Fractional-Order Elements. - Dvorak, Jan; Jerabek, Jan; Langhammer, Lukas; Kapoulea, Stavroula; Psychalinos, Costas (2018)

Modification of Current Follower/Amplifier with Controllable Intrinsic Resistance. - Langhammer, Lukas; Sotner, Roman; Dvorak, Jan (2018)

Reconnection-less Reconfigurable Filter and its Application into Adaptive Circuit. - Sotner, Roman; Jerabek, Jan; Petrzela, Jiri; Langhammer, Lukas; Domansky, Ondrej; Jaikla, Winai; Dostál, Tomás (2018)

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

Single active parameter tunable simple band-pass filter: Methods for tunability range extension. - Sotner, Roman; Petrzela, Jiri; Domansky, Ondrej; Langhammer, Lukas; Dostál, Tomás (2017)

A 1+α Low-Pass Fractional-Order Frequency Filter with Adjustable Parameters. - Langhammer, Lukas; Sotner, Roman; Dvorak, Jan; Domansky, Ondrej; Jerabek, Jan; Uher, Jiri (2017)

Fractional-order low-pass filter with electronically adjustable parameters. - Jerabek, Jan; Sotner, Roman; Kubánek, David; Dvorak, Jan; Langhammer, Lukas; Herencsar, Norbert; Vrba, Kamil (2016)

Electronically tunable fractional-order low-pass filter with current followers. - Dvorak, Jan; Langhammer, Lukas; Jerabek, Jan; Koton, Jaroslav; Sotner, Roman; Polak, Josef (2016)

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