Conferences

2000-2010
  • A. S. Elwakil and M. P. Kennedy, "High frequency RC chaos generator," Proc. 5th IEEE Int. Conf. on Electronics, Circuits and Systems ICECS'98, pp. 513-516, Lisbon, Portugal, 1998.
  • A. S. Elwakil and M. P. Kennedy, "Towards a methodology for designing autonomous chaotic oscillators," Proc. 6th Int. Specialist Workshop on Nonlinear Dynamics of Electronic Systems NDES'98, pp. 79-82, Budapest, Hungary, 1998.
  • A. S. Elwakil and M. P. Kennedy, "Design of a simple chaotic oscillator," Proc. Irish Signals and Systems Conf. ISSC'98, pp. 337-342, Dublin, Ireland, 1998.
  • A. S. Elwakil and M. P. Kennedy, "Modified for chaos quadrature oscillator," Proc. Irish Signals and Systems Conf. ISSC'99, pp. 247-250, Galway, Ireland, 1999.
  • A. S. Elwakil and M. P. Kennedy, "Chaotic oscillator configuration using a frequency-dependent negative resistor," Proc. IEEE Symposium on Circuits & Systems ISCAS'99, pp. 399-402, Orlando, USA, 1999.
  • A. S. Elwakil and M. P. Kennedy, "A conjecture concerning the design of autonomous chaotic oscillators," Proc. 7th Int. Specialist Workshop on Nonlinear Dynamics of Electronic Systems NDES'99, pp. 229-231, Bornholm, Denmark, 1999.
  • A. S. Elwakil and M. P. Kennedy, "Chaotic oscillator using current conveyors," Proc. European Conf. Circuit Theory and Design ECCTD'99, pp. 873-85, Stresa, Italy, 1999.
  • A. S. Elwakil and M. P. Kennedy, "Systematic realization of a class of hysteresis chaotic oscillators" Int. Symposium on Nonlinear Theory and Applications NOLTA'99, pp. 111-114, Hawaii, USA, 1999.
  • A. S. Elwakil, K. N. Salama and M. P. Kennedy, "A system for chaos generation and its implementation in monolithic form," Proc. IEEE Symposium on Circuits & Systems ISCAS'00, pp. 217-220, Geneva, Switzerland, 2000.
  • A. S. Elwakil and M. P. Kennedy, "Generic RC realizations of Chua's circuit," Proc. 8th Int. Specialist Workshop on Nonlinear Dynamics of Electronic Systems NDES'00, pp. 122-125, Catania, Italy, 2000.
  • A. S. Elwakil and M. P. Kennedy, "Generic circuit-independent RC chaotic oscillator structures," Int. Symposium on Nonlinear Theory and Applications NOLTA'00, pp. 13-16, Geneva, Switzerland, 2000.
  • A. S. Elwakil, "Canonical fourth-order equations for chaos generation," Proc. 9th Int. Specialist Workshop on Nonlinear Dynamics of Electronic Systems NDES'01, pp. 177-180, Delft, The Netherlands, 2001.
  • A. S. Elwakil, S. Ozoguz and M. P. Kennedy, "Creation of a complex butterfly attractor using a novel Lorenz-type system," Proc. 10th Int. Specialist Workshop on Nonlinear Dynamics of Electronic Systems NDES'02, pp. 2-5-2-8, Izmir, Turkey,
  • K. N. Salama, S. Ozoguz and A. S. Elwakil, "Generation of n-scroll chaos using nonl;inear transconductors," Proc. IEEE Symposium on Circuits & Systems ISCAS'03, pp. 176-179, Bangkok, Thailand, 2003.
  • A. S. Elwakil, "Nonautonomous pulse-driven chaotic oscillator based on Chua's circuit," Proc. of the IEEE Symposium on Circuits & Systems ISCAS'03, pp. 136-139, Bangkok, Thailand, 2003.
  • A. S. Elwakil and S. Ozoguz, "Pulse excited RC nonautonomous chaotic oscillator structures," Proc. IEEE Symposium on Circuits & Systems ISCAS'04, pp. 713-715, Vancouver, Canada, 2004.
  • S. Ozoguz, A. S. Elwakil and O. Ates, "An integrated circuit chaotic oscillator and its application for high speed random bit generation," Proc. IEEE Symposium on Circuits & Systems ISCAS'05, pp. 4345-4348, Kobe, Japan, 2005.
  • A. S. Elwakil and S. Ozoguz, "Multi-attractors from nonautonomous chaotic oscillators," Proc. Int. Sym. on Nonlinear Theory and Applications NOLTA05, pp. 497-500, Belgium, 2005.
  • S. Ozoguz and A. S. Elwakil, "2-D scroll grid attractors from pulse-excited nonautonomous circuits," Proc. IEEE Symposium on Circuits & Systems ISCAS'06, pp. 706-609, Kos, Greece, 2006.
  • A. S. Elwakil and S. Ozoguz, "Explaining hysteresis in electronic circuits: robust simulation and design examples," Proc. IEEE Int. Conf. Electronics, Circuits and Systems ICECS'06, pp. 244-247, Nice, France, 2006.
  • Y. El-Imam and A. S. Elwakil, "Applying recurrence quantification and spectral analysis to represent nasalization in speech signals," Proc. Int. Conf. Multimedia Systems and Signal Processing WSEAS'07, pp. 129-132, Hangzhou, China, 2007.
  • A. S. Elwakil and K. N. Salama, "Improvement to the condition for oscillation of cross-coupled sinusoidal oscillators," Proc. Int. Sym. on Nonlinear Theory and Applications NOLTA07, pp. 7-10, Vancouver, Canada, 2007.
  • A. S. Elwakil, H. Al-Nashash and N. Thakor, "Monitoring of global cerebral ischemia using instantaneous phase variation plots," 30th IEEE Annual Int. Eng. in Medicine and Biology Conf., Vancouver, Canada, August 2008.
  • A. S. Elwakil and K. N. Salama, "Nonlinear models of some ring oscillators," Joint IEEE North-East Workshop on Circuits & Systems and NEWCAS-TAISA conf., USA, 2008.
  • A. Abid, Q. Nasir and A. S. Elwakil, "Implementation of a chaotically encrypted wireless communication system," Int. Conf. on Communications ICC'09, pp. 1-5, Dresden, Germany, 2009.
  • A. S. Elwakil and S. Ozoguz, "A low frequency oscillator structure," Proc. European Conference Circuit Theory and Design ECCTD'09, pp. 588-590, Antalya, Turkey, 2009.
  • T. J. Freeborn, B. J. Maundy and A. S. Elwakil, "On the practical realization of higher-order filters with fractional stepping," Proc. IEEE Symposium on Circuits & Systems ISCAS'10, pp. 1037-1040, Paris, France, 2010.
  • T. J. Freeborn, B. J. Maundy, and A. S. Elwakil, "A second order approximation of the fractional Laplacian operator for equal-ripple response," Midwest Symposium on Circuits and Systems, pp. 1173-1176, USA, 2010.

2011-2020
  • A. S. Elwakil and B. Maundy, "Experimental technique for estimating the dispersion coefficient of a constant phase element," Proc. European Conf. Circuit Theory and Design ECCTD'11, pp. 85-88, Linkping, Sweden, 2011.
  • A. G. Radwan and A. S. Elwakil, "The generalized exponential function and fractional trigonometric identities," pp. 468-470, Proc. European Conf. Circuit Theory and Design ECCTD'11, pp. 85-88, Linkping, Sweden, 2011.
  • T. J. Freeborn, B. J. Maundy and A. S. Elwakil, "Improved Cole-Cole parameter extraction from frequency response using least squares fitting," Proc. IEEE Symposium on Circuits & Systems ISCAS'12, pp. 337-340, Seoul, Korea, 2012.
  • A. G. Radwan and A.  S. Elwakil, "Transient-time fractional-space trigonometry and application", Int. Conf. Neural Processing, pp. 40-47, 2012.
  • T. J. Freeborn, B. J. Maundy and A. S. Elwakil, "Accurate time domain extraction of super-capacitor fractional-order model parameters," Proc. IEEE Symposium on Circuits & Systems ISCAS'13, pp. 2259-2262, China, May, 2013.
  • A. Marathe, B. J. Maundy and A. S. Elwakil, "Design of fractional notch filter with asymmetric slopes and large values of notch magnitude", IEEE 56th Midwest Symposium on Circuits & Systems, Columbus, Ohio, August 4-7, 2013.
  • T. J. Freeborn, B. J. Maundy and A. S. Elwakil, "Reducing numerical complexity for Cole impedance extraction from current-step response", IEEE 56th Midwest Symposium on Circuits & Systems, Columbus, Ohio, August 4-7, 2013.
  • H. Yildiz, A. Toker, A. S. Elwakil and S. Ozoguz, "MOS only all-pass filters modified for low operating frequency range," 8th IEEE Int. Conf. Electrical and Electronics Engineering (ELECO), pp. 36-39, Nov. 2013.
  • L. Alani, M. Foolad , A. Hassan and A. S. Elwakil, “Smart garbage bin,” 24th Annual IEEE Canadian Conf. Electrical and Computer Eng., pp. 001493-001494, Toronto, Canada, 2014. 
  • C. Psychalinos, G. Tsirimokou and A. S. Elwakil, "Digitally programmed fractional-order Chebyshev filter realizations using current-mirrors," Proc. IEEE Symposium on Circuits & Systems ISCAS'15, pp. 2337-2340, Portugal, May, 2015.
  • I. Dimeas, G. Tsirimokou, C. Psychalinos and A. S. Elwakil, "Realization of fractional-order capacitor and inductor emulators using current feedback operational amplifiers," Proc. Int. Symposium on Nonlinear Theory & Applications NOLTA'15, pp. 237-240, Hong Kong, Dec., 2015.
  • M. Fouda, A. G. Radwan and A. S. Elwakil, "Series and parallel circuit models containing memristors and inverse memristors," Proc. IEEE Int. Conf. on Electronics, Circuits and Systems ICECS'15, pp, 292-295, Egypt, Dec. 2015.
  • M. E. Fouda, A. G. Radwan, A. S. Elwakil, N. K. Nawayseh, "Review of the missing mechanical element: Memdamper," Proc. IEEE Int. Conf. on Electronics, Circuits and Systems ICECS'15, pp. 201-204, Egypt, Dec. 2015.
  • B. J. Maundy, T. J. Freeborn, A. S. Elwakil and A. Allagui, "Determination of supercapacitor metrics using a magnitude-only method," Proc. IEEE Symposium on Circuits & Systems ISCAS'16, pp. 1186-1189, Montreal, Canada, May, 2016.
  • G. Tsirimokou, C. Psychalinos and A. S. Elwakil, "Switched-Current Fractional-Order Filter Designs," Proc. IEEE Symposium on Circuits & Systems ISCAS'16, pp. 682-685, Montreal, Canada, May 2016.
  • A. Jarndal and A. S. Elwakil, "Fractional-order model of GaN high electron mobility transistors for switching applications," Int. Conf. on Microelectronics, Nanoelectronics and Photonics (ICMNP 2016), Stockholm, Sweden, vol. 10, pp. 788-792, July 2016.
  • T. J. Freeborn, A. S. Elwakil and B. J. Maundy, "Factors impacting accurate Cole-impedance extractions from magnitude-only measurements," IEEE Int. Conf. on Syst., Man, and Cybernetics,  pp. 223-227, Budapest, Hungary, Oct. 2016.
  • T. J. Freeborn, A. S. Elwakil and B. J. Maundy, "Electrode location impact on Cole-impedance parameters using magnitude-only measurements," IEEE 59th Int. Midwest Symposium on Circuits and Systems (MWSCAS), Abu Dhabi, pp. 21-24, Oct. 2016. 
  • A. Abo Bakr, A. G. Radwan, A. Madian and A. S. Elwakil, "Aging effect on apples bio-impedance using AD5933," 3rd IEEE Int. Conf. on Advances in Computational Tools for Engineering Applications (ACTEA), Beirut, Lebanon, pp. 188-161, July, 2016.
  • I. Dimeas, G. Tsirimokou, C. Psychalinos and A. S. Elwakil, Experimental verification of filters using fractional-order capacitor and inductor emulators, Int. Conf. on Telecommunications and Signal Processing TSP2016, Vienna, pp. 559-562, June 2016.
  • A. M. Abdelaty, A. G. Radwan, A. S. Elwakil and C. Psychalinos, A Fractional-order dynamic PV model, Int. Conf. on Telecommunications and Signal Processing TSP2016, Vienna, pp. 607-610, June 2016.
  • T. J. Freeborn, A. S. Elwakil and C. Psychalinos, "Analysis of a rectifier circuit realized with a fractional-order capacitor," 28th Int. Conf. on Microelectronics (ICM-2016), pp. 33-36, Cairo, Egypt, Dec. 2016.
  •  B. J. Maundy, A. S.  Elwakil, T. J. Freeborn and A. Allagui "Improved method to determine super-capacitor metrics from high-pass filter response," 28th Int. Conf. on Microelectronics (ICM-2016), pp. 25-28, Cairo, Egypt, Dec. 2016.
  • A. Al-Ali, A. S. Elwakil, A. Ahmad and B. J. Maundy, "Design of a portable low-cost impedance analyzer," 10th Joint Int. Conf. on Biomedical Engineering Systems  and Technologies (BIOSTEC 2017) and Biomedical Electronics and Devices (BIODEVICES-2017)  Porto, Portugal, vol. 1, pp. 104-109, Feb. 2017.
  • T. J. Freeborn and A. S. Elwakil, "Variability of supercapacitor fractional order parameters extracted from discharging behavior using least squares optimization," Proc. IEEE Symposium on Circuits & Systems ISCAS'17, pp. 1510-1513, Baltimore, USA, May 2017.
  • B. Maundy, P. Ahmadi, A. S. Elwakil, L. Belostotski and A. Madanayake, "A new 2nd-order allpass filter in 130nm CMOS," Proc. IEEE Symposium on Circuits & Systems ISCAS'17, pp. 2434-2438, Baltimore, USA, May 2017.
  • N. Udayanga, A. Madanayake, C. Wijenayake, P. Ahmadi, L. Belostotski, L. Bruton and A. S. Elwakil, "All-pass filter synthesis of multifunctional microwave active circuits," 85th IEEE Vehicular Technology Conf. (VTC2017-Spring), Sydney, Australia, June, 2017.
  • B. Maundy, A. S. Elwakil A. Al-Ali and L. Belostotski, "Synthesis and analysis of fully differential filters using two port networks" IEEE 60th Int. Midwest Symposium on Circuits and Systems (MWSCAS), Boston, USA, pp. 1105-1108, August 2017. 
  • M. F. Tolba, A. M. AbdelAty, L. A. Said, A. S. Elwakil, A. T. Azar,  A. H. Madian, A. Ounnas and A. G. Radwan, "FPGA realization of Caputo and Grünwald-Letnikov operators," 6th Int. Conf. on Modern Circuits and Systems Technologies (MOCAST), Thessaloniki, Greece, May 2017 (10.1109/MOCAST.2017.7937659).
  • C. Vastarouchas, G. Tsirimokou, T. Freeborn, C. Psychalinos and A. Elwakil, "Design of a wood tissue impedance emulator in monolithic form," 23rd European Conf. on Circuit Theory and Design  ECCTD 2017, Catania, Italy, Sept. 2017 (10.1109/ECCTD.2017.8093305).
  • A. Elwakil, G. Tsirimokou, C. Psychalinos and B. Maundy, "Analysis and experimental verification of a fractional-order Hartley oscillator," 23rd European Conf. on Circuit Theory and Design  ECCTD 2017, Catania, Italy, Sept. 2017 (10.1109/ECCTD.2017.8093312).
  • I. Dimeas, C. Psychalinos, A. S. Elwakil and A. Tepljakov, "OTA-C realization of  PI^{lambda} brake and throttle controllers for autonomous vehicles," 23rd European Conf. on Circuit Theory and Design  ECCTD 2017, Catania, Italy, Sept. 2017 (10.1109/ECCTD.2017.8093229).
  • T. Freeborn, A. Allagui and A. S. Elwakil, " Modeling supercapacitors leakage behavior using a fractional-order model" 23rd European Conf. on Circuit Theory and Design  ECCTD 2017, Catania, Italy, Sept. 2017 (10.1109/ECCTD.2017.8093337).
  • T. Freeborn, A. S. Elwakil and A. Allagui, "

    Supercapacitor fractional-order model discharging from polynomial time-varying currents

    "     Proc. IEEE Symposium on Circuits & Systems ISCAS'18, Florence, Italy, May 2018 (
    doi: 10.1109/ISCAS.2018.8351010).

  • C. Vastarouchas, C. Psychalinos and A. S. Elwakil, " Fractional-order model of a commercial ear simulator,"  Proc. IEEE Symposium on Circuits & Systems ISCAS'18, Florence, Italy, May 2018 (
    doi: 10.1109/ISCAS.2018.8351400).

  • P. Bertsias, L. Safari, S. Minaei, Ahmed Elwakil and C. Psychalinos, "Fractional-order differentiators and integrators with reduced circuit complexity," Proc. IEEE Symposium on Circuits & Systems ISCAS'18, Florence, Italy, May 2018 (doi: 10.1109/ISCAS.2018.8351452).

  • A. Al-Ali, B. J. Maundy and A. S. Elwakil "Design and implementation of a bio-impedance analyzer based on the Kramers-Kronig transform,"  Proc. IEEE Symposium on Circuits & Systems ISCAS'18, Florence, Italy, May 2018 (doi: 10.1109/ISCAS.2018.8351061).

  • M. B. Elamien, B. J. Maundy, L. Belostotski and A. S. Elwakil "A 28 GHz Q-tunable fully differential bandpass filter in 65-nm CMOS technology," IEEE 61st Int. Midwest Symposium on Circuits and Systems (MWSCAS), Windsor, Canada, pp. 105-108, August 2018. 

  • B. J. Maundy, A. S. Elwakil and C. Psychalinos "On a class of quadrature phase oscillators using differential pairs," IEEE 61st Int. Midwest Symposium on Circuits and Systems (MWSCAS), Windsor, Canada, pp. 9-12, August 2018. 

  • B. J. Maundy, A. S. Elwakil, M. B. Elamien and A. Al-Hammadi "Synthesis of a family of differential cross-coupled oscillators and design application," IEEE 61st Int. Midwest Symposium on Circuits and Systems (MWSCAS), Windsor, Canada, pp. 13-16, August 2018. 

  • A. A. Al-Ali, A. S. Elwakil and  B. J. Maundy, "Bio-impedance measurements with phase extraction using the Kramers-Kronig transform: Application to strawberry aging," IEEE 61st Int. Midwest Symposium on Circuits and Systems (MWSCAS), Windsor, Canada, pp. 468-471, August 2018. 

  • G. Tsirimokou, C. Psychalinos, A. S. Elwakil, B. Maundy, "Fractional-order multiphase sinusoidal oscillator design using current-mirrors," 41st Int. Conf. on Telecommunications and Signal Processing TSP2018,  Athens, Greece, pp. 342-245, July 2018.

  • P. Bertsias, C. Psychalinos and A. S. Elwakil, "Fractional-order Mihalas–Niebur neuron model implementation using current-mirrors," 6th Int. Conf. on Control, Decision and Information Technologies (CODIT'19), Paris, France, April 2019.

  • S. Kapoulea, A. M. AbdelAty, A. S. Elwakil, C. Psychalinos and A. G. Radwan,"Cole-Cole bio-impedance parameters extraction from a single time-domain measurement," 8th Int. Conf. on Modern Circuits and Systems Technologies (MOCAST), Thessaloniki, Greece, 2019.

  • P. Bertsias, C. Psychalinos, A. S. Elwakil and B. J. Maundy,"Simple multi-function fractional-order filter designs," 8th Int. Conf. on Modern Circuits and Systems Technologies (MOCAST), Thessaloniki, Greece, 2019.

  • M. B. Elamien, B. J. Maundy, L. Belostotski, A. S. Elwakil and S. A. Mahmoud, "A wideband delay-tunable fully differential allpass filter in 65-nm CMOS technology," IEEE Int. Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, pp. 8702370, May 2019.

  • M. E. Fouda, A. AboBakr, A. S. Elwakil, A. G. Radwan and A. M. Eltawil, "Simple MOS transistor-based realization of fractional-order capacitors,"  IEEE Int. Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, pp. 8702341, May 2019.

  • V. Alimisis, P. Bertsias, C. Psychalinos and A. S. Elwakil, "Electronically tunable implementation of the arterial viscoelasticity model," 42nd Int. Conf. on Telecommunications and Signal Processing TSP2019,  Budapest, Hungary, pp. 145-148, July 2019.

  • P. Bertsias, C. Psychalinos, A. S. Elwakil and A. G. Radwan, "Log-domain implementation of fractional-order element emulators," 42nd Int. Conf. on Telecommunications and Signal Processing TSP2019,  Budapest, Hungary, pp. 106-109, July 2019.

  • Z. Papachristopoulou, S. Kapoulea, C. Psychalinos and A. S. Elwakil, "Design of fractional-order emulator of the cardiac tissue electrode interface," 42nd Int. Conf. on Telecommunications and Signal Processing TSP2019,  Budapest, Hungary, pp. 114-117, July 2019.

  • C. Vasi, S. Kapoulea, C. Psychalinos, A. S. Elwakil and L. Said, "Design of fractional-order differentiator-lowpass filters for extracting the R peaks in ECG signals," 42nd Int. Conf. on Telecommunications and Signal Processing TSP2019,  Budapest, Hungary, pp. 110-113, July 2019.

  • S. Kapoulea, G. Tsirimokou, C. Psychalinos and A. S. Elwakil, "OTA-C implementation of fractional-order lead/lag compensators," Novel Intelligent and Leading Emerging Sciences Conference (NILES), pp. 38-41, Cairo, Egypt, 2019.

  • A. AboBakr, M. Mohsen, L. A. Said, A. H. Madian, A. S. Elwakil and A. G. Radwan, "Banana ripening and corresponding variations in bio-impedance and glucose levels," Novel Intelligent and Leading Emerging Sciences Conference (NILES), pp. 130-133, Cairo, Egypt, 2019.

  • P. Bertsias, G. Tsirimokou, C. Psychalinos and A. S.  Elwakil, "Fully electronically tunable inverse fractional-order filter designs," Novel Intelligent and Leading Emerging Sciences Conference (NILES), pp. 42-45, Cairo, Egypt, 2019.

  • M. B. Elamien, B. J. Maundy, L. Belostotski and A. S. Elwakil, "An ultra-low power wide-band single-transistor second-order allpass filter in 65nm CMOS," IEEE 62nd Int. Midwest Symposium on Circuits and Systems (MWSCAS), pp. 373-376, 2019.

  • A. AboBakr, M. Mohsen, L. A. Said, A. H. Madian, A. S. Elwakil and A. G. Radwan, "Towards portable bio-impedance devices," 4th Int. Conference on Advances in Computational Tools for Engineering Applications (ACTEA), 2019.

  • M. A. Mousa, A. AboBakr, L. A. Said, A. H. Madian, A. S. Elwakil and A. G. Radwan, "Heating and freezing injury to plant tissues and their effect on bioimpedance: Experimental study," 4th Int. Conference on Advances in Computational Tools for Engineering Applications (ACTEA), 2019.

  • H. Orabi, M. Elnawawy, A. Sagahyroon, F. Aloul, A. S. Elwakil, A. G. Radwan, "On the implementation of a rotated chaotic Lorenz system on FPGA," IEEE Asia Pacific Conference on Circuits and Systems (APCCAS), pp. 417-422, 2019.

  • M. B. Elamien, A. S. Elwakil, B. J. Maundy, L. Belostotski, "8-GHz low-power voltage-mode second-order allpass filter in 65-nm CMOS," 2019 26th IEEE Int. Conf. on Electronics, Circuits and Systems (ICECS), pp. 146-149, 2019.

  • M. B. Elamien, B. J. Maundy, L. Belostotski and A. S. Elwakil, "Low-power single-transistor voltage-mode third-order all-pass filter in 65-nm CMOS," 2020 IEEE 63rd International Midwest Symposium on Circuits and Systems (MWSCAS), pp. 1-4, 2020.
  • S. Kapoulea, C. Psychalinos,  A. S. Elwakil, "Fractional-order shelving filter designs for acoustic applications,"  IEEE Int. Symposium on Circuits and Systems (ISCAS), Sevilla, Spain,  Oct. 2020. (10.1109/ISCAS45731.2020.9180640).
  • Stavroula Kapoulea, Costas Psychalinos, Ahmed S Elwakil, "Simple implementations of the Cole-Cole models," 2020 2nd Novel Intelligent and Leading Emerging Sciences Conference (NILES), pp. 99-102, Cairo, Egypt, 2020.
  • P. Bertsias, C. Psychalinos,  A. S. Elwakil, "Fractional-order complementary filters for sensor applications,"  IEEE Int. Symposium on Circuits and Systems (ISCAS), Sevilla, Spain,  Oct. 2020. (10.1109/ISCAS45731.2020.9180745)