Abdelrahman Emad ElDin Hussien Mohamed Afifi Profile

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Abdelrahman Emad ElDin Hussien Mohamed Afifi

Teacher Assistant at Electronics Engineering and Electrical Communications

Career Information

Teacher Assistant at : 2016-09-08
Demonstrator at : 2012-01-12

Academic Information

Email : abdelrahman_hussien@eng.asu.edu.eg
Graduation : 2011 From Faculty of Engineering , Ain shams University

Articles

1- M. Y. Shalaby, K. M. Khalil Abdel Salam, Abdelrahman E. Afifi, D. A. M. Khalil, M. Ahmed, K. Hassan, F. S. Alarifi, and M. Jary Al-Otaibi. "Ring Mirror Optical Rotation Sensor." U.S. Patent 20,150,070,706, issued March 12, 2015.

2- Abdelrahman E. Afifi, Angie R. El-Damak, Tarek A. Ramadan and M. H. Ahmed, “Fiber Optical Coherence Domain Polarimetry for PM Fiber Measurements”, IEEE/OSA Journal of Light-wave Technology. (Accepted)

Publications

  1. Mohamed Adel, Ahmed Allam, Ashraf E. Sayour, Hani Ragai, Shinjiro Umezu, Ahmed M. R. Fath El-Bab, " Fabrication of Spiral Low-Cost Microchannel with Trapezoidal Cross Section for Cell Separation Using a Grayscale Approach ", Micromachines, 2023
  2. Rana Aly Onsy, Mohamed El-Nozahi, Hani Ragai, " Design-Aware Parasitic-Aware Simulation Based Automation and Optimization of Highly Linear RF CMOS Power Amplifiers ", Electronics, 2023
  3. Helal, E., El-Nozahi, M., Ibrahim, S., Ragai, H.F., " A 1.65 to 2.5 GHz wide-band RF energy harvester ", Midwest Symposium on Circuits and Systems, 2019
  4. El-Hussien, M., Gadallah, Y., Ragai, H., " An LTE-based Multicast Scheduling Technique for Critical Smart Grid Communications ", Proceedings - 2018 13th International Conference on Computer Engineering and Systems, ICCES 2018, 2019
  5. Ahmed, S.H., El-Nozahi, M., Abouelatta, M., Ragai, H.F., " Blocker Tolerant Sigma Delta ADC ", National Radio Science Conference, NRSC, Proceedings, 2019
  6. Ahmed, S.M., Eladawy, M.I., Salem, M.S., Ragai, H., " Controlling the frequency response of a cantilever-based energy harvesters using split piezoelectric elements ", 2018 Proceedings of the Japan-Africa Conference on Electronics, Communications, and Computations, JAC-ECC 2018, 2019
  7. Elaakhdar, M., Adly, I., Ragai, H., " High Performance Time-Continuous Differential Sense Amplifier in Time Domain Sensing with 28 nm Technology for Automotive Applications ", Proceedings - 2018 International Conference on Computing, Electronics and Communications Engineering, iCCECE 2018, 2019
  8. Badran, M.S., Issa, H.H., Eisa, S.M., Ragai, H.F., " Low Leakage Current Symmetrical Dual-k 7 nm Trigate Bulk Underlap FinFET for Ultra Low Power Applications ", IEEE Access, 2019
  9. Zamzam, A., El-Nozahi, M., Ragai, H.F., " A 60GHz stacked injection locking power amplifier ", 2018 IEEE 19th Wireless and Microwave Technology Conference, WAMICON 2018, 2018
  10. Soliman, M., El-Rafei, A., El-Nozahi, M., Ragai, H., " Adaptive differential pulse coding for ECG signal compression ", Lecture Notes in Computational Vision and Biomechanics, 2018
  11. Saied, A.M., Abutaleb, M.M., Eladawy, M.I., Ragai, H., " Analytical Method for Ultra-Low Power UWB Low-Noise Amplifiers ", SMACD 2018 - 15th International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design, 2018
  12. Faragalla, M.R., Ewais, M.A., Ragai, H.F., Badran, M.S., Issa, H.H., " Impact of process variability on FinFET 6T SRAM cells for physical unclonable functions (PUFs) ", Proceedings of ICCES 2017 12th International Conference on Computer Engineering and Systems, 2018
  13. Ragai, H.F., Adly, I., Sayour, H.E.M., Wilson, S., " Remote control and monitoring of fish farms using wireless sensor networks ", Proceedings of ICCES 2017 12th International Conference on Computer Engineering and Systems, 2018
  14. Odema, M., Adly, I., Wahba, A., Ragai, H., " Smart aquaponics system for industrial internet of things (IIoT) ", Advances in Intelligent Systems and Computing, 2018
  15. Saied, A.M., Abutaleb, M.M., Eladawy, M.I., Ragai, H., " Ultra-low power LNA design technique for UWB applications ", AEU - International Journal of Electronics and Communications, 2018
  16. Saied, A.M., Abutaleb, M.M., Ibrahim, I.I., Ragai, H., " Ultra-low-power design methodology for UWB low-noise amplifiers ", Proceedings of the International Conference on Microelectronics, ICM, 2018
  17. Amer, A.G., Ibrahim, S.A., Ragai, H.F., " A 1-mW 12-GHz LC VCO in 65-nm CMOS technology ", 2016 IEEE International Conference on Electronics, Circuits and Systems, ICECS 2016, 2017
  18. Saeed, A., Ibrahim, S., Ragai, H.F., " A Sizing Methodology for Rise-Time Minimization of Dickson Charge Pumps with Capacitive Loads ", IEEE Transactions on Circuits and Systems II: Express Briefs, 2017
  19. Dawoud, A.Q., El-Nozahi, M., Ragai, H.F., " Broadband noise and distortion cancelling low noise amplifier ", Midwest Symposium on Circuits and Systems, 2017
  20. Saeed, A., El-Rouby, A.E., Ismail, Y., Ragai, H., " Clock signal characterization for signal integrity ", 2017 IEEE 7th Annual Computing and Communication Workshop and Conference, CCWC 2017, 2017
  21. Saad, M., El-Nozahi, M., Ragai, H., " A chopper capacitive feedback instrumentation amplifier with input impedance boosting technique ", Midwest Symposium on Circuits and Systems, 2016
  22. Ayesh, M.M., Ibrahim, S.A., Ragai, H.F., Rizk, M.M., " A low-power high-speed charge-steering ADC-based equalizer for serial links ", Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems, 2016
  23. Amer, A.G., Ibrahim, S.A., Ragai, H.F., " A novel current steering charge pump with low current mismatch and variation ", Proceedings - IEEE International Symposium on Circuits and Systems, 2016
  24. Ahmed, H.O., Elkhatib, M.M., Adly, I., Ragai, H.F., " Design and Implementation of Fuzzy Event-detection Algorithm for Border Monitoring on FPGA ", International Journal of Fuzzy Systems, 2016
  25. El-Aassar, O., El-Nozahi, M., Ragai, H.F., " Loss mechanisms and optimum design methodology for efficient mm-waves class-E PAs ", IEEE Transactions on Circuits and Systems I: Regular Papers, 2016
  26. Saad, M., El-Nozahi, M., Ragai, H., " Low noise chopper instrumentation amplifier with feed-forward ripple suppression technique ", Proceedings of the International Conference on Microelectronics, ICM, 2016
  27. Abdelwahab, I., Issa, H.H., Farghaly, M., Ragai, H.F., " Multi-lead ECG using two ZigBee nodes ", Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems, 2016
  28. El-Aassar, O., El-Nozahi, M., Ragai, H.F., " Phase aligned mm-wave injection locked power amplifier ", Proceedings - IEEE International Symposium on Circuits and Systems, 2016
  29. Idres, S.B., El-Nozahi, M., Ragai, H.F., " A noise cancelling envelope detector for low power wireless sensor applications ", Proceedings - IEEE International Symposium on Circuits and Systems, 2015
  30. Fathy, A., Yahya, A., Ragai, H., " Deterministic UWB channel modeling using ray tracing approach ", ICET 2014 - 2nd International Conference on Engineering and Technology, 2015
  31. El-Aassar, O., El-Nozahi, M., Ragai, H.F., " Loss mechanisms and switching performance analysis for efficient mm-Waves Class-E PAs ", Proceedings - IEEE International Symposium on Circuits and Systems, 2015
  32. Elbahey, M.N., Khalil, D.S., Ragai, H.F., " Proposed static timing analysis framework for extracted 3D integrated circuits (3D-STA) ", 2015 International 3D Systems Integration Conference, 3DIC 2015, 2015
  33. Qassem, A., El-Nozahi, M., Ragai, H., " Analysis and design of wideband common-gate low noise amplifier ", Proceedings of the International Conference on Microelectronics, ICM, 2014
  34. Riad, J., El-Gamal, M.N., Ragai, H., " Modeling and simulation of a pressure sensing solution based on silicon carbide for harsh environment applications ", Proceedings - UKSim-AMSS 16th International Conference on Computer Modelling and Simulation, UKSim 2014, 2014
  35. Gomaa, R., Adly, I., Sharshar, K., Safwat, A., Ragai, H., " Radiation tolerance assessment of commercial ZigBee wireless modules ", IEEE Radiation Effects Data Workshop, 2014
  36. Gomaa, R.I., Shohdy, I.A., Sharshar, K.A., Al-Kabbani, A.S., Ragai, H.F., " Real-time radiological monitoring of nuclear facilities using ZigBee technology ", IEEE Sensors Journal, 2014
  37. Salah, K., Ragai, H., Ismail, Y., " A Macro-modeling approach for Through Silicon Via ", IEEE EuroCon 2013, 2013
  38. Gadallah, Y., Elmorsy, M., Ibrahim, M.N., Ragai, H., " ECTP: Enhanced collection tree protocol for practical wireless sensor network applications ", 2013 9th International Wireless Communications and Mobile Computing Conference, IWCMC 2013, 2013
  39. Salem, M.S., Salem, M.S., Zekry, A.A., Ragai, H.F., " Modeling of Q - V diagram using SPICE for electrostatic MEMS converter found in energy scavenging systems ", Applied Mechanics and Materials, 2013
  40. Issa, H.H., Eisa, S.M., Shehata, K.A., Ragai, H.F., " Srd-based pulse generator for UWB wireless network applications ", International Conference on Computer Applications Technology, ICCAT 2013, 2013
  41. Salah, K., El-Rouby, A., Ragai, H., Ismail, Y., " TSV-based on-chip inductive coupling communications ", Proceedings - IEEE International Symposium on Circuits and Systems, 2013
  42. Gomaa, R., Adly, I., Sharshar, K., Safwat, A., Ragai, H., " ZigBee wireless sensor network for radiation monitoring at nuclear facilities ", Proceedings of 2013 6th Joint IFIP Wireless and Mobile Networking Conference, WMNC 2013, 2013
  43. Salah, K., El Rouby, A., Ragai, H., Ismail, Y., " A closed form expression for TSV-based on-chip spiral inductor ", ISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems, 2012
  44. Basyoni, M.S.S., Zekry, A.A., Ragai, H.F., " Design of the power conditioning circuit for vibration based electrostatic MEMS energy converters found in energy scavenging systems ", Advanced Materials Research, 2012
  45. Salah, K., El Rouby, A., Ragai, H., Ismail, Y., " Effect of non-uniform substrate doping profile on the electrical performance of through-silicon-via for low power application ", 2012 International Conference on Energy Aware Computing, ICEAC 2012, 2012
  46. Basyoni, M.S.S., Zekry, A.A., Ragai, H.F., " Enhancing the output power of vibration based electrostatic MEMS energy converters for energy scavenging systems ", Advanced Materials Research, 2012
  47. Salem, M.S., Tasciuc, D.B., Zekry, A.A., Ragai, H.F., " Fabrication and test of electrostatic MEMS converter found in energy scavenging systems ", Advanced Materials Research, 2012
  48. Saeed, A., Fikri Ragai, H., " Implementation of fast discrete wavelet transform for vibration analysis on an FPGA ", Proceedings of the 2012 8th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2012, 2012
  49. Daoud, H.G., Ragai, H.F., " Mechanomyogram signal detection and decomposition: Conceptualisation and research design ", International Journal of Healthcare Technology and Management, 2012
  50. Salah, K., El Rouby, A., Ragai, H., Ismail, Y., " Modeling and analysis of through silicon via: Electromagnetic and device simulation approach ", 2012 19th IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2012, 2012
  51. Salah, K., El Rouby, A., Ragai, H., Ismail, Y., " TSV impact on circuit performance and recommended design methodologies ", Proceedings of the International Conference on Microelectronics, ICM, 2012
  52. Azmy, B., El-Gamal, M., El-Henawy, A., Ragai, H., " An accurate model for fluid loading on circular CMUTs ", IEEE International Ultrasonics Symposium, IUS, 2011
  53. Mohamed, K., Elrouby, A., Ismail, Y., Ragai, H., " Body contact based TSV equalizer ", International Design and Test Workshop, 2011
  54. Salah, K., El Rouby, A., Ragai, H., Amin, K., Ismail, Y., " Compact lumped element model for TSV in 3D-ICs ", Proceedings - IEEE International Symposium on Circuits and Systems, 2011
  55. Salah, K., Ragai, H., Ismail, Y., El Rouby, A., " Equivalent lumped element models for various n-port through silicon vias networks ", Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC, 2011
  56. Anis, A.M., Abutaleb, M.M., Ragai, H.F., Eladawy, M.I., " SiC capacitive pressure sensor node for harsh industrial environment ", Proceedings - CIMSim 2011: 3rd International Conference on Computational Intelligence, Modelling and Simulation, 2011
  57. Salah, K., Rouby, A.E., Ragai, H., Ismail, Y., " TSV model linearization ", Proceedings of the International Conference on Microelectronics, ICM, 2011
  58. Salah, K., El Rouby, A., Ragai, H., Ismail, Y., " 3D/TSV enabling technologies for SoC/NoC: Modeling and design challenges ", Proceedings of the International Conference on Microelectronics, ICM, 2010
  59. Adly, I., Ragai, H.F., Elhennawy, A.E., Shehata, K.A., " Adaptive packet sizing for OTAP of PSoC based interface board in WSN ", Proceedings of the International Conference on Microelectronics, ICM, 2010
  60. El-Damak, D.R., Hegazi, E., Ragai, H.F., " Analytical design of circular CMUT cells in immersion ", Proceedings - IEEE Ultrasonics Symposium, 2010
  61. Salah, K., El-Rouby, A., Ismail, Y., Ragai, H., Amin, K., " Compact TSV modeling for low power application ", 2010 International Conference on Energy Aware Computing, ICEAC 2010, 2010
  62. Ouda, M., Hegazi, E., Ragai, H.F., " Digital enhancement of frequency synthesizers ", ISCAS 2010 - 2010 IEEE International Symposium on Circuits and Systems: Nano-Bio Circuit Fabrics and Systems, 2010
  63. Adly, I., Ragai, H.F., El-Hennawy, A., Shehata, K.A., " Over-the-air programming of PSoC sensor interface in wireless sensor networks ", Proceedings of the Mediterranean Electrotechnical Conference - MELECON, 2010
  64. Khidre, A., Rahman, A.A., Elsadek, H., Omar, A., Ragai, H., " UWB printed monopole antenna with embedded reconfigurable multiband filter based on miniaturized ground plane slot ", Microwave and Optical Technology Letters, 2010
  65. Elsadek, H., Khidre, A., Rahman, A.A., Omar, A., Ragai, H., " UWB reconfigurable microstrip antenna with 3 bit band rejection for wireless sensor networks applications ", International Conference on Communications - Proceedings, 2010
  66. Salem, M.S., Zekry, A.A., Ragai, H.F., " Comparative study for electrostatic MEMS converters ", National Radio Science Conference, NRSC, Proceedings, 2009
  67. Hafez, A.A., Dessouky, M.A., Ragai, H.F., " Design of a low-power ZigBee receiver front-end for wireless sensors ", Microelectronics Journal, 2009
  68. Reda, D., Hegazi, E., Salama, K.N., Ragai, H.F., " Design of low noise transimpedance amplifier for intravascular ultrasound ", 2009 IEEE Biomedical Circuits and Systems Conference, BioCAS 2009, 2009
  69. Ouda, M., Hegazi, E., Ragai, H.F., " Digital on-chip phase noise measurement ", 2009 4th International Design and Test Workshop, IDT 2009, 2009
  70. Nada, Y., Stoffels, S., Tilmans, H.A.C., Hegazi, E., Ragai, H.F., Shaarawi, A.M., " RF MEMS resonators: Material properties extraction ", 2009 4th International Design and Test Workshop, IDT 2009, 2009
  71. Khidre, A.H., EI Sadek, H.A., Ragai, H.F., " Reconfigurable UWB printed monopole antenna with band rejection covering IEEE 802.11a/h ", IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), 2009
  72. Salem, M.S., Zekry, A.A., Ragai, H.F., " Three different spice models for representing the behavior of electrostatic MEMS converters ", National Radio Science Conference, NRSC, Proceedings, 2009
  73. Yousry, R., Hegazi, E., Ragai, H.F., " A third-order 9-bit 10-MHz CMOS ΔΣ modulator with one active stage ", IEEE Transactions on Circuits and Systems I: Regular Papers, 2008
  74. Nada, Y.S., Stoffels, S., Tilmans, H.A.C., Hegazi, E., Ragai, H.F., Shaarawi, A.M., " Circular MEM resonator: Modeling second order effects on resonance frequency ", EuroSimE 2008 - International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Micro-Systems, 2008
  75. Hussein, H., Shehata, K.A., Ragai, H.F., " Design and implementation of 2.5 GBPS pipelined digital encoder for flash A/D converters ", 2008 2nd International Conference on Signals, Circuits and Systems, SCS 2008, 2008
  76. Shehata, K.A., Eisa, S.M., Ragai, H.F., " Design and implementation of an 11-bit non-linear interpolation DAC ", International Journal of Electronics, 2008
  77. El-Sabban, A.A.F., Ragai, H.F., " Design of power-controlled class1 Bluetooth CMOS power amplifier ", International Journal of Electronics, 2008
  78. Shehata, K.A., Husien, H., Ragai, H.F., " 1.5GSPS 4-bit flash ADC using 0.18μm CMOS ", Proceedings of the International Conference on Microelectronics, ICM, 2007
  79. Elshazly, A., Dessouky, M., Ragai, H.F., " A 2.5-3.125Gbps clock and data recovery circuit for multi-standard transceivers ", Proceedings of the International Conference on Microelectronics, ICM, 2007
  80. Amer, A., Hegazi, E., Ragai, H., " A low-power wideband CMOS LNA for WiMAX ", IEEE Transactions on Circuits and Systems II: Express Briefs, 2007
  81. Nabil, H., Samir, A., Ali, M., Fathy, M., Sayed, S., Ragai, H.F., " CMOS UWB-IR energy collection based receiver ", Proceedings of the International Conference on Microelectronics, ICM, 2007
  82. Shehata, K.A., Ragai, H.F., Husien, H., " Design and implementation of a high speed low power 4-bit flash ADC ", Proceedings - 2007 International Conference on Design and Technology of Integrated Systems in Nanoscale Era, DTIS 2007, 2007
  83. Zekry, J.E., Daoud, G.N., Ghali, H.A., Ragai, H.F., " Design and simulation of digitally tunable high-Q on-chip inductor ", Proceedings of the International Conference on Microelectronics, ICM, 2007
  84. Hafez, A.A., Dessouky, M.A., Ragai, H.F., " Design of a low-power ZigBee receiver front-end for wireless sensors ", Proceedings of the International Conference on Microelectronics, ICM, 2007
  85. Salem, M.S., Salem, M.S., Zekry, A.A., Ragai, H.F., " Effect of parallel capacitance in increasing output power of electrostatic MEMS Converters ", Proceedings of the International Conference on Microelectronics, ICM, 2007
  86. El Khouly, M.M., Nada, Y., Hegazi, E., Ragai, H.F., Ghannam, M.Y., " A MEMS disk resonator-based oscillator ", Proceedings of the International Conference on Microelectronics, ICM, 2006
  87. Sakr, M.M., El-Shafie, M.K., Ragai, H.F., " Analysis and modeling of RF-MEMS disk resonator ", Proceedings - The 2006 International Conference on MEMS, NANO and Smart Systems, ICMENS, 2006
  88. El-Shafie, M.K., Sakr, M.M., Ragai, H.F., " Behavioral modeling of RF-MEMS disk resonator ", Proceedings - The 2006 International Conference on MEMS, NANO and Smart Systems, ICMENS, 2006
  89. Eisa, S.M., Shehata, K.A., Ragai, H.F., " Design and implementation of an 11-Bit non-linear interpolation DAC ", Proceedings - 2006 International Conference on Design and Test of Integrated Systems in Nanoscale Technology, IEEE DTIS 2006, 2006
  90. El-Sabban, A.A., Ragai, H.F., " Design of power-controlled class1 bluetooth CMOS power amplifier ", Proceedings - 2006 International Conference on Design and Test of Integrated Systems in Nanoscale Technology, IEEE DTIS 2006, 2006
  91. Salem, M.S., Salem, M.S., Zekry, A.A., Ragai, H.F., " Determining the required pulses for controlling the operation of electrostatic MEMS converters ", Proceedings - The 2006 International Conference on MEMS, NANO and Smart Systems, ICMENS, 2006
  92. Bishay, A.G., Fikry, W., Hunter, H., Ragai, H.F., " Effect of strain on the frequency-dependent resistance of island gold films ", Journal of Materials Science: Materials in Electronics, 2006
  93. Bishay, A.G., Fikry, W., Hunter, H., Ragai, H.F., " Effect of strain on the frequency-independent parameters of the equivalent circuit of island gold films ", Journal of Materials Science: Materials in Electronics, 2006
  94. Bahnas, M., Al-Imam, M., Seoud, A., Lacour, P., Ragai, H.F., " Implementation of adaptive site optimization in model-based OPC for minimizing ripples ", Proceedings of SPIE - The International Society for Optical Engineering, 2006
  95. Salem, M.S., Salem, M.S., Zekry, A.A., Ragai, H.F., " Performance enhancement of gap closing electrostatic MEMS converters ", Proceedings - The 2006 International Conference on MEMS, NANO and Smart Systems, ICMENS, 2006
  96. Abadir, G.B., Fikry, W., Ragai, H.F., Omar, O.A., " A device simulation and model verification of single event transients in n<sup>+</sup>-p junctions ", IEEE Transactions on Nuclear Science, 2005
  97. Salem, M.S., Salem, M.S., Zekry, A.A., Ragai, H.F., " Design methodology and power conditioning circuit of vibration based MEMS converters for wireless sensor networks ", ITI 3rd International Conference on Information and Communications Technology, ICICT 2005 - Enabling Technologies for the New Knowledge Society, 2005
  98. Khalil, D., Dessouky, M., Bourguet, V., Louerat, M.-M., Cathelln, A., Ragai, H., " Evaluation of capacitor ratios in automated accurate common-centroid capacitor arrays ", Proceedings - International Symposium on Quality Electronic Design, ISQED, 2005
  99. Amin, K.M., Fikry, W., Sabry, M.N., Ragai, H.F., " Modelling of thermal failure of metallic interconnects under electrostatic discharge transients ", Electronics Letters, 2005
  100. Abadir, G.B., Fikry, W., Ragai, H.F., Omar, O.A., " A simulation study of single events in n<sup>+</sup>-p Junctions ", Proceedings - 2004 International Conference on Electrical, Electronic and Computer Engineering, ICEEC'04, 2004
  101. Abd El-khalik, S., Kayed, S., El-Azab, M.A., Dessouky, M., Ragai, H.F., " Automated synthesis of integrated RF CMOS LC VCOs ", Proceedings - 2004 International Conference on Electrical, Electronic and Computer Engineering, ICEEC'04, 2004
  102. Khalil, D.E., Dessouky, M., Bourguet, V., Louerat, M.-M., Cathelin, A., Ragai, H., " Compensated layout for automated accurate common-centroid capacitor arrays ", Proceedings - 2004 International Conference on Electrical, Electronic and Computer Engineering, ICEEC'04, 2004
  103. Laban, S.A., Ragai, H., " Current mode low noise amplifier for ultra wide-band applications ", Proceedings - 2004 International Conference on Electrical, Electronic and Computer Engineering, ICEEC'04, 2004
  104. El-Sabban, A.A., Haddara, H., Ragai, H.F., " Validation of RF MOSFET transistor layout-aware macromodel ", Proceedings - 2004 International Conference on Electrical, Electronic and Computer Engineering, ICEEC'04, 2004
  105. Noman, A., Sharaf, K., Ragai, H.F., " 5 mW, 64 dB SNDR, 4<sup>th</sup> order bandpass ΣΔ modulator for 10.7 MHz digital IF ", Proceedings of the International Conference on Microelectronics, ICM, 2003
  106. Abadir, G.B., Fikry, W., Ragai, H.F., Omar, O.A., " A new semi-empirical model for funneling assisted drain currents due to single events ", Proceedings of the International Conference on Microelectronics, ICM, 2003
  107. Helmy, A., Sharaf, K., Ragai, H., " Analysis and Optimization of Noise in Bipolar RF Harmonic Mixers ", Analog Integrated Circuits and Signal Processing, 2003
  108. Salem, M.S., Salem, M.S., Kayed, S.I., Ragai, H.F., " Comparison of radiation hardening techniques for standard CMOS technologies ", National Radio Science Conference, NRSC, Proceedings, 2003
  109. Bishay, A.G., Fikry, W., Hunter, H., Ragai, H.F., " Frequency-independent parameters of an equivalent circuit of two dimensional island gold films ", Physica Status Solidi (A) Applied Research, 2003
  110. Metwally, E.A., Hafez, I.M., El-Ghitani, H., Ragai, H.F., " Novel CMOS voltage-controlled current conveyor ", Proceedings of the International Conference on Microelectronics, ICM, 2003
  111. Bishay, A.G., Hunter, H., Fikry, W., Ragai, H.F., " Parallel components of an equivalent circuit of two-dimensional island gold films ", Journal of Materials Science: Materials in Electronics, 2003
  112. Hegazy, H., Sharaf, K., Ragai, H.F., " A comparative study of CMOS-based quadrature integrated LC VCO topologies ", Midwest Symposium on Circuits and Systems, 2002
  113. Hassan, A., Sharaf, K., El-Ghitani, H., Ragai, H.F., " The design and implementation of a bandpass GM-C filter for bluetooth ", Midwest Symposium on Circuits and Systems, 2002
  114. Helmy, A., Sharaf, K., Ragai, H., " Analysis and optimization of noise in bipolar RF harmonic mixers ", Midwest Symposium on Circuits and Systems, 2001
  115. Karam, M., Fikry, W., Haddara, H., Ragai, H., " Implementation of hot-carrier reliability simulation in Eldo ", ISCAS 2001 - 2001 IEEE International Symposium on Circuits and Systems, Conference Proceedings, 2001
  116. Helmy, A., Sharaf, K., Ragai, H., " A simplified analytical model for nonlinear distortion in RF bipolar circuits ", Midwest Symposium on Circuits and Systems, 2000
  117. Ahmed, A., Sharaf, K., Haddara, H., Ragai, H.F., " CMOS VCO-prescaler cell-based design for RF PLL frequency synthesizers ", Proceedings - IEEE International Symposium on Circuits and Systems, 2000
  118. Ghoneima, M., Sharaf, K., Ragai, H.F., Zekry, A.E.-H., " Low power units for the Viterbi decoder ", Midwest Symposium on Circuits and Systems, 2000
  119. Helmy, A., Sharaf, K., Ragai, H., " On the SFDR performance of BJT RF circuits, an analytical approach ", Proceedings of the International Conference on Microelectronics, ICM, 2000
  120. Aly, M.M., Sharaf, K., Ragai, H.F., " On the utilization of strength-reduced architectures for adaptive equalizers ", Proceedings - IEEE International Symposium on Circuits and Systems, 2000

Research Projects

1- "Applications of Optical Fibers", Funded by Laboratory of Lasers and Optical Communications, Ain Shams University.(2013-2015)

2- "Single Axis Ring Laser Fiber optic Gyroscope using MEMS phase Modulators", Funded by Si-Ware Systems, Egypt.(2013-2014)

3- “Microwave Generation using Optoelectronic Oscillators”, Joint Research with Future University, Egypt.(2014-2015)