Hani Ragai
hani_ragaai@eng.asu.edu.eg, hfragai@gmail.com
hani_ragaai@eng.asu.edu.eg, hfragai@gmail.com
Biography
Hani F. RAGAI received the B.Sc. and M.Sc. degrees from Ain Shams University, Cairo, Egypt in 1967 and 1972 respectively. He received the "Doctorat de Specialité" and the "Doctorat d'Etat" in electronics from Grenoble University and Institute Polytechnique de Grenoble (INPG), France in 1976 and 1980 respectively. From 1972 to 1979 he was a research assistant at LETI and then at THOMSON-EFCIS from 1979 to 1980, both in Grenoble, France. He then joined the Electronics and Communication Engineering Department, Faculty of Engineering, Ain Shams University as assistant professor. Since 1990 he is a professor of electronics in the same department where he is also the director of the "Integrated Circuits Lab" from 1980 to 2006. Since 2006 he becomes professor emeritus at Ain Shams University and is also seconded to the French University of Egypt as head of the Information and Communications Technology department. Then he is back to Ain Shams University till now. His research interests include modeling and characterization of MOS devices, electrochemistry of silicon surfaces, MEMS-based sensors, ultra-low power ASICs for UWB communications and wireless sensor nodes, wireless sensor networks and IoT applications and energy scavenging techniques.
Publications
M. R. Faragalla, M. A. Ewais, H. F. Ragai, M. S. Badran and H. H. Issa, "Impact of process variability on FinFET 6T SRAM cells for physical unclonable functions (PUFs)," 2017 12th International Conference on Computer Engineering and Systems (ICCES), Cairo, 2017, pp. 31-36.
doi: 10.1109/ICCES.2017.8275272
H. F. Ragai, I. Adly, H. E. M. Sayour and S. Wilson, "Remote control and monitoring of fish farms using wireless sensor networks," 2017 12th International Conference on Computer Engineering and Systems (ICCES), Cairo, 2017, pp. 107-111.
doi: 10.1109/ICCES.2017.8275287
A. M. Saied, M. M. Abutaleb, I. I. Ibrahim and H. Ragai, "Ultra-low-power design methodology for UWB low-noise amplifiers," 2017 29th International Conference on Microelectronics (ICM), Beirut, 2017, pp. 1-3.
doi: 10.1109/ICM.2017.8268846
A. Q. Dawoud, M. El-Nozahi and H. F. Ragai, "Broadband noise and distortion cancelling low noise amplifier," 2017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS), Boston, MA, 2017, pp. 914-917.
doi: 10.1109/MWSCAS.2017.8053073
A. Saeed, S. Ibrahim and H. F. Ragai, "A Sizing Methodology for Rise-Time Minimization of Dickson Charge Pumps With Capacitive Loads," in IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 64, no. 10, pp. 1202-1206, Oct. 2017.
doi: 10.1109/TCSII.2017.2687864
M. Saad, M. El-Nozahi and H. Ragai, "A chopper capacitive feedback instrumentation amplifier with input impedance boosting technique," 2016 IEEE 59th International Midwest Symposium on Circuits and Systems (MWSCAS), Abu Dhabi, 2016, pp. 1-4.
doi: 10.1109/MWSCAS.2016.7870153
A. Saeed, A. E. El-Rouby, Y. Ismail and H. Ragai, "Clock signal characterization for signal integrity," 2017 IEEE 7th Annual Computing and Communication Workshop and Conference (CCWC), Las Vegas, NV, 2017, pp. 1-6.
doi: 10.1109/CCWC.2017.7868424
M. Saad, M. El-Nozahi and H. Ragai, "Low noise chopper instrumentation amplifier with feed-forward ripple suppression technique," 2016 28th International Conference on Microelectronics (ICM), Giza, 2016, pp. 305-308.
doi: 10.1109/ICM.2016.7847876
A. G. Amer, S. A. Ibrahim and H. F. Ragai, "A 1-mW 12-GHz LC VCO in 65-nm CMOS technology," 2016 IEEE International Conference on Electronics, Circuits and Systems (ICECS), Monte Carlo, 2016, pp. 456-459.
doi: 10.1109/ICECS.2016.7841237
O. El-Aassar, M. El-Nozahi and H. F. Ragai, "Phase aligned mm-wave injection locked power amplifier," 2016 IEEE International Symposium on Circuits and Systems (ISCAS), Montreal, QC, 2016, pp. 1566-1569.
doi: 10.1109/ISCAS.2016.7538862
A. G. Amer, S. A. Ibrahim and H. F. Ragai, "A novel current steering charge pump with low current mismatch and variation," 2016 IEEE International Symposium on Circuits and Systems (ISCAS), Montreal, QC, 2016, pp. 1666-1669.
doi: 10.1109/ISCAS.2016.7538887
O. El-Aassar, M. El-Nozahi and H. F. Ragai, "Loss Mechanisms and Optimum Design Methodology for Efficient mm-Waves Class-E PAs," in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 63, no. 6, pp. 773-784, June 2016.
doi: 10.1109/TCSI.2016.2537999
I. Abdelwahab, H. H. Issa, M. Farghaly and H. F. Ragai, "Multi-lead ECG using two ZigBee nodes," 2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS), Cairo, 2015, pp. 21-24.
doi: 10.1109/ICECS.2015.7440239
M. M. Ayesh, S. A. Ibrahim, H. F. Ragai and M. M. Rizk, "A low-power high-speed charge-steering ADC-based equalizer for serial links," 2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS), Cairo, 2015, pp. 500-501.
doi: 10.1109/ICECS.2015.7440360
M. N. ElBahey, D. S. Khalil and H. F. Ragai, "Proposed static timing analysis framework for extracted 3D integrated circuits (3D-STA)," 2015 International 3D Systems Integration Conference (3DIC), Sendai, 2015, pp. TS8.33.1-TS8.33.4.
doi: 10.1109/3DIC.2015.7334604
A. Qassem, M. El-Nozahi and H. Ragai, "Analysis and design of wideband common-gate low noise amplifier," 2014 26th International Conference on Microelectronics (ICM), Doha, 2014, pp. 128-131.
doi: 10.1109/ICM.2014.7071823
J. Riad, M. N. E. Gamal and H. Ragai, "Modeling and Simulation of a Pressure Sensing Solution Based on Silicon Carbide for Harsh Environment Applications," 2014 UKSim-AMSS 16th International Conference on Computer Modelling and Simulation, Cambridge, 2014, pp. 576-581.
doi: 10.1109/UKSim.2014.34
A. Fathy, A. Yahya and H. Ragai, "Deterministic UWB channel modeling using ray tracing approach," 2014 International Conference on Engineering and Technology (ICET), Cairo, 2014, pp. 1-4.
doi: 10.1109/ICEngTechnol.2014.7016826
R. Gomaa, I. Adly, K. Sharshar, A. Safwat and H. Ragai, "Radiation Tolerance Assessment of Commercial ZigBee Wireless Modules," 2014 IEEE Radiation Effects Data Workshop (REDW), Paris, 2014, pp. 1-5.
doi: 10.1109/REDW.2014.7004584
K. Salah, H. Ragai and Y. Ismail, "A macro-modeling approach for through silicon via," Eurocon 2013, Zagreb, 2013, pp. 1869-1872.
doi: 10.1109/EUROCON.2013.6625232
Y. Gadallah, M. Elmorsy, M. N. Ibrahim and H. Ragai, "ECTP: Enhanced Collection Tree Protocol for practical wireless sensor network applications," 2013 9th International Wireless Communications and Mobile Computing Conference (IWCMC), Sardinia, 2013, pp. 165-170.
doi: 10.1109/IWCMC.2013.6583553
K. Salah, A. El-Rouby, H. Ragai and Y. Ismail, "TSV-based on-chip inductive coupling communications," 2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), Beijing, 2013, pp. 1672-1675.
doi: 10.1109/ISCAS.2013.6572185
R. Gomaa, I. Adly, K. Sharshar, A. Safwat and H. Ragai, "ZigBee wireless sensor network for radiation monitoring at nuclear facilities," 6th Joint IFIP Wireless and Mobile Networking Conference (WMNC), Dubai, 2013, pp. 1-4.
doi: 10.1109/WMNC.2013.6548954
R. Agieb, I. Adly and R. Ragai, "Two nodes UWB low power asset localization in WSN," 2013 International Conference on Computer Applications Technology (ICCAT), Sousse, 2013, pp. 1-4.
doi: 10.1109/ICCAT.2013.6522059
H. H. Issa, S. M. Eisa, K. A. Shehata and H. F. Ragai, "Srd-based pulse generator for UWB wireless network applications," 2013 International Conference on Computer Applications Technology (ICCAT), Sousse, 2013, pp. 1-4.
doi: 10.1109/ICCAT.2013.6522049
K. Salah, A. El Rouby, H. Ragai and Y. Ismail, "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, Guzelyurt, Cyprus, 2012, pp. 1-4.
doi: 10.1109/ICEAC.2012.6471001
K. Salah, A. El Rouby, H. Ragai and Y. Ismail, "TSV impact on circuit performance and recommended design methodologies," 2012 24th International Conference on Microelectronics (ICM), Algiers, Algeria, 2012, pp. 1-4.
doi: 10.1109/ICM.2012.6471405
K. Salah, A. El Rouby, H. Ragai and Y. Ismail, "Modeling and analysis of through silicon via: Electromagnetic and device simulation approach," 2012 19th IEEE International Conference on Electronics, Circuits, and Systems (ICECS 2012), Seville, 2012, pp. 825-828.
K. Salah, A. E. Rouby, H. Ragai and Y. Ismail, "TSVs macro-modeling framework," 2011 International Conference on Energy Aware Computing, Istanbul, 2011, pp. 1-4.
doi: 10.1109/ICEAC.2011.6403632
A. Saeed and H. Fikri Ragai, "Implementation of fast discrete wavelet transform for vibration analysis on an FPGA," 2012 8th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP), Poznan, 2012, pp. 1-5.
doi: 10.1109/CSNDSP.2012.6292787
B. Azmy, M. El-Gamal, A. El-Henawy and H. Ragai, "An accurate model for fluid loading on circular CMUTs," 2011 IEEE International Ultrasonics Symposium, Orlando, FL, 2011, pp. 584-587.
doi: 10.1109/ULTSYM.2011.0141
K. Salah, A. El Rouby, H. Ragai and Y. Ismail, "A closed form expression for TSV-based on-chip spiral inductor," 2012 IEEE International Symposium on Circuits and Systems, Seoul, 2012, pp. 2325-2328.
doi: 10.1109/ISCAS.2012.6271760
K. Salah, A. E. Rouby, H. Ragai and Y. Ismail, "TSV model linearization," ICM 2011 Proceeding, Hammamet, 2011, pp. 1-4.
doi: 10.1109/ICM.2011.6177394
K. Mohamed, A. Elrouby, Y. Ismail and H. Ragai, "Body contact based TSV equalizer," 2011 IEEE 6th International Design and Test Workshop (IDT), Beirut, 2011, pp. 114-117.
doi: 10.1109/IDT.2011.6123113
A. M. Anis, M. M. Abutaleb, H. F. Ragai and M. I. Eladawy, "SiC Capacitive Pressure Sensor Node for Harsh Industrial Environment," 2011 Third International Conference on Computational Intelligence, Modelling & Simulation, Langkawi, 2011, pp. 413-416.
doi: 10.1109/CIMSim.2011.82
K. Salah, A. El Rouby, H. Ragai, K. Amin and Y. Ismail, "Compact lumped element model for TSV in 3D-ICs," 2011 IEEE International Symposium of Circuits and Systems (ISCAS), Rio de Janeiro, 2011, pp. 2321-2324.
doi: 10.1109/ISCAS.2011.5938067
D. R. El-Damak, E. Hegazi and H. F. Ragai, "Analytical design of circular CMUT cells in immersion," 2010 IEEE International Ultrasonics Symposium, San Diego, CA, 2010, pp. 1865-1868.
doi: 10.1109/ULTSYM.2010.5935429
K. Salah, H. Ragai, Y. Ismail and A. E. Rouby, "Equivalent lumped element models for various n-port Through Silicon Vias networks," 16th Asia and South Pacific Design Automation Conference (ASP-DAC 2011), Yokohama, 2011, pp. 176-183.
doi: 10.1109/ASPDAC.2011.5722180
K. Salah, A. El-Rouby, Y. Ismail, H. Ragai and K. Amin, "Compact TSV modeling for low power application," 2010 International Conference on Energy Aware Computing, Cairo, 2010, pp. 1-2.
doi: 10.1109/ICEAC.2010.5702291
I. Adly, H. F. Ragai, A. E. Elhennawy and K. A. Shehata, "Adaptive packet sizing for OTAP of PSoC based interface board in WSN," 2010 International Conference on Microelectronics, Cairo, 2010, pp. 148-151.
doi: 10.1109/ICM.2010.5696101
K. Salah, A. El Rouby, H. Ragai and Y. Ismail, "3D/TSV enabling technologies for SOC/NOC: Modeling and design challenges," 2010 International Conference on Microelectronics, Cairo, 2010, pp. 268-271.
doi: 10.1109/ICM.2010.5696135
I. Adly, H. F. Ragai, A. El-Hennawy and K. A. Shehata, "Over-The-Air Programming of PSoC sensor interface in wireless sensor networks," Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference, Valletta, 2010, pp. 997-1002.
doi: 10.1109/MELCON.2010.5475910
Y. Nada, S. Stoffels, H. A. C. Tilmans, E. Hegazi, H. F. Ragai and A. M. Shaarawi, "RF MEMS resonators: Material properties extraction," 2009 4th International Design and Test Workshop (IDT), Riyadh, 2009, pp. 1-4.
doi: 10.1109/IDT.2009.5404127
D. Reda, E. Hegazi, K. N. Salama and H. F. Ragai, "Design of low noise transimpedance amplifier for Intravascular Ultrasound," 2009 IEEE Biomedical Circuits and Systems Conference, Beijing, 2009, pp. 57-60.
M. S. Salem, A. A. Zekry and H. F. Ragai, "Three different SPICE models for representing the behavior of electrostatic MEMS converters," 2009 National Radio Science Conference, New Cairo, 2009, pp. 1-9.
M. S. Salem, A. A. Zekry and H. F. Ragai, "Comparative study for electrostatic MEMS converters," 2009 National Radio Science Conference, New Cairo, 2009, pp. 1-10.
A. H. Khidre, H. A. El Sadek and H. F. Ragai, "Reconfigurable UWB printed monopole antenna with band rejection covering IEEE 802.11a/h," 2009 IEEE Antennas and Propagation Society International Symposium, Charleston, SC, 2009, pp. 1-4.
doi: 10.1109/APS.2009.5171549
K. A. Shehata, H. Hussein and H. F. Ragai, "Design and implementation of 2.5 GBPS pipelined digital encoder for flash A/D Converters," 2008 2nd International Conference on Signals, Circuits and Systems, Monastir, 2008, pp. 1-5.
R. Yousry, E. Hegazi and H. F. Ragai, "A Third-Order 9-Bit 10-MHz CMOS $Delta Sigma $ Modulator With One Active Stage," in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 55, no. 9, pp. 2469-2482, Oct. 2008.
doi: 10.1109/TCSI.2008.920065
Y. S. Nada, S. Stoffels, H. A. C. Tilmans, E. Hegazi, H. F. Ragai and A. M. Shaarawi, "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, Freiburg im Breisgau, 2008, pp. 1-5.
doi: 10.1109/ESIME.2008.4525089
J. E. Zekry, G. N. Daoud, H. A. Ghali and H. F. Ragai, "Design and simulation of digitally tunable high-Q on-chip inductor," 2007 Internatonal Conference on Microelectronics, Cairo, 2007, pp. 239-242.
doi: 10.1109/ICM.2007.4497702
A. A. Hafez, M. A. Dessouky and H. F. Ragai, "Design of a low-power ZigBee receiver front-end for wireless sensors," 2007 Internatonal Conference on Microelectronics, Cairo, 2007, pp. 183-186.
doi: 10.1109/ICM.2007.4497689
H. Nabil, A. Samir, M. Ali, M. Fathy, S. Sayed and H. F. Ragai, "CMOS UWB-IR energy collection based receiver," 2007 Internatonal Conference on Microelectronics, Cairo, 2007, pp. 441-444.
doi: 10.1109/ICM.2007.4497645
A. Elshazly, M. Dessouky and H. F. Ragai, "A 2.5-3.125Gbps clock and data recovery circuit for multi-standard transceivers," 2007 Internatonal Conference on Microelectronics, Cairo, 2007, pp. 295-298.
doi: 10.1109/ICM.2007.4497714
K. A. Shehata, H. Husien and H. F. Ragai, "1.5GSPS 4-bit flash ADC using 0.18μm CMOS," 2007 Internatonal Conference on Microelectronics, Cairo, 2007, pp. 311-314.
doi: 10.1109/ICM.2007.4497718
K. A. Shehata, H. F. Ragai and H. Husien, "Design and implementation of a high speed low power 4-bit Flash ADC," 2007 International Conference on Design & Technology of Integrated Systems in Nanoscale Era, Rabat, 2007, pp. 200-203.
doi: 10.1109/DTIS.2007.4449519
M. M. el Khouly, Y. Nada, E. Hegazi, H. F. Ragai and M. Y. Ghannam, "A MEMS Disk Resonator-Based Oscillator," 2006 International Conference on Microelectronics, Dhahran, 2006, pp. 75-78.
doi: 10.1109/ICM.2006.373270
M. S. Salem, M. S. Salem, A. A. Zekry and H. F. Ragai, "Performance Enhancement of Gap Closing Electrostatic MEMS Converters," 2006 International Conference on MEMS, NANO, and Smart Systems, Cairo, 2006, pp. 45-47.
doi: 10.1109/ICMENS.2006.348214
M. S. Salem, M. S. Salem, A. A. Zekry and H. F. Ragai, "Determining the Required Pulses for Controlling the Operation of Electrostatic MEMS Converters," 2006 International Conference on MEMS, NANO, and Smart Systems, Cairo, 2006, pp. 27-30.
doi: 10.1109/ICMENS.2006.348210
A. Amer, E. Hegazi and H. Ragai, "A Low-Power Wideband CMOS LNA for WiMAX," in IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 54, no. 1, pp. 4-8, Jan. 2007.
doi: 10.1109/TCSII.2006.884113
A. A. El-sabban and H. F. Ragai, "Design of power-controlled Class1 Bluetooth CMOS power amplifier," International Conference on Design and Test of Integrated Systems in Nanoscale Technology, 2006. DTIS 2006., Tunis, 2006, pp. 110-113.
doi: 10.1109/DTIS.2006.1708681
S. M. Eisa, K. A. Shehata and H. F. Ragai, "Design and implementation of an 11-bit non-linear interpolation DAC," International Conference on Design and Test of Integrated Systems in Nanoscale Technology, 2006. DTIS 2006., Tunis, 2006, pp. 136-139.
doi: 10.1109/DTIS.2006.1708667
M. S. Salem, M. S. Salem, A. A. Zekry and H. F. Ragai, "Design methodology and power conditioning circuit of vibration based MEMS converters for wireless sensor networks," 2005 International Conference on Information and Communication Technology, Cairo, 2005, pp. 333-342.
doi: 10.1109/ITICT.2005.1609634
A. Noman, K. Sharaf and H. Fikry Ragai, "5mW 64dB SNDR 4th order bandpass ΣΔ modulator for 10.7MHz digital IF," 2003 46th Midwest Symposium on Circuits and Systems, 2003, pp. 117-120 Vol. 1.
doi: 10.1109/MWSCAS.2003.1562232
A. A. EL-Sabban, Hisham Haddara and H. F. Ragai, "RF transistor macromodeling with substrate effect in power amplifier design," 2003 46th Midwest Symposium on Circuits and Systems, 2003, pp. 1307-1310 Vol. 3.
doi: 10.1109/MWSCAS.2003.1562535
A. Helmy, K. Sharaf, A. Mhani and H. Ragai, "A low voltage single-balanced down-conversion transformer coupled mixer," 2003 46th Midwest Symposium on Circuits and Systems, 2003, pp. 1243-1246 Vol. 3.
doi: 10.1109/MWSCAS.2003.1562520
M. A. El-Nozahi, M. Dessouky and H. F. Ragai, "Tunable bandpass sigma delta modulators," 2003 46th Midwest Symposium on Circuits and Systems, Cairo, 2003, pp. 229-232 Vol. 1.
doi: 10.1109/MWSCAS.2003.1562260
M. A. El sheikh, Khaled Sharaf, Hisaham Haddara, H. F. Ragai and M. I. Marzouk, "An agile ΣΔ fractional-N PLL frequency synthesizer for 2.5G GSM applications," 2003 46th Midwest Symposium on Circuits and Systems, 2003, pp. 1142-1145 Vol. 3.
G. B. Abadir, W. Fikry, H. F. Ragai and O. A. Omar, "A device Simulation and model verification of single event transients in n+-p junctions," in IEEE Transactions on Nuclear Science, vol. 52, no. 5, pp. 1518-1523, Oct. 2005.
doi: 10.1109/TNS.2005.856718
K. M. Amin, W. Fikry, M. N. Sabry and H. F. Ragai, "Modelling of thermal failure of metallic interconnects under electrostatic discharge transients," in Electronics Letters, vol. 41, no. 19, pp. 1056-1057, 15 September 2005.
doi: 10.1049/el:20052032
D. Khalil, M. Dessouky, V. Bourguet, M. M. Louerat, A. Cathelln and H. Ragai, "Evaluation of capacitor ratios in automated accurate common-centroid capacitor arrays," Sixth international symposium on quality electronic design (isqed'05), 2005, pp. 143-147.
doi: 10.1109/ISQED.2005.54
A. A. El-Sabban, H. Haddara and H. F. Ragai, "Validation of RF mosfet transistor layout-aware macromodel," Electrical, Electronic and Computer Engineering, 2004. ICEEC '04. 2004 International Conference on, 2004, pp. 524-527.
doi: 10.1109/ICEEC.2004.1374519
G. B. Abadir, W. Fikry, H. F. Ragai and O. A. Omar, "A simulation study of single events in n+-p junctions," Electrical, Electronic and Computer Engineering, 2004. ICEEC '04. 2004 International Conference on, 2004, pp. 541-544.
doi: 10.1109/ICEEC.2004.1374525
S. A. Laban and H. Ragai, "Current mode low noise amplifier for ultra wide-band applications," Electrical, Electronic and Computer Engineering, 2004. ICEEC '04. 2004 International Conference on, 2004, pp. 571-574.
doi: 10.1109/ICEEC.2004.1374534
D. Khalil, M. Dessouky, V. Bourguet, M. M. Louerat, A. Cathelin and H. Ragai, "Compensated layout for automated accurate common-centroid capacitor arrays," Electrical, Electronic and Computer Engineering, 2004. ICEEC '04. 2004 International Conference on, 2004, pp. 481-484.
doi: 10.1109/ICEEC.2004.1374505
S. A. El-khalik, S. Kayed, M. A. El-azab, M. Dessouky and H. F. Ragai, "Automated synthesis of integrated RF CMOS LC VCOs," Electrical, Electronic and Computer Engineering, 2004. ICEEC '04. 2004 International Conference on, Cairo, Egypt, 2004, pp. 485-488.
doi: 10.1109/ICEEC.2004.1374506
E. A. Metwally, I. M. Hafez, H. El-Ghitani and H. F. Ragai, "Novel CMOS voltage-controlled current conveyor," Proceedings of the 12th IEEE International Conference on Fuzzy Systems (Cat. No.03CH37442), 2003, pp. 67-71.
doi: 10.1109/ICM.2003.1287724
G. B. Abadir, W. Fikry, H. F. Ragai and O. A. Omar, "A new semi-empirical model for funneling assisted drain currents due to single events," Proceedings of the 12th IEEE International Conference on Fuzzy Systems (Cat. No.03CH37442), 2003, pp. 391-394.
doi: 10.1109/ICM.2003.1287847
M. Karam, W. Fikry, H. Haddara and H. Ragai, "Implementation of hot-carrier reliability simulation in Eldo," ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196), Sydney, NSW, 2001, pp. 515-518 vol. 5.
doi: 10.1109/ISCAS.2001.922098
A. Helmy, K. Sharaf and H. Ragai, "Analysis and optimization of noise in bipolar RF harmonic mixers," Proceedings of the 44th IEEE 2001 Midwest Symposium on Circuits and Systems. MWSCAS 2001 (Cat. No.01CH37257), Dayton, OH, 2001, pp. 829-832 vol.2.
doi: 10.1109/MWSCAS.2001.986315
A. Helmy, K. Sharaf and H. Ragai, "On the SFDR performance of BJT RF circuits, an analytical approach," ICM 2000. Proceedings of the 12th International Conference on Microelectronics. (IEEE Cat. No.00EX453), Tehran, 2000, pp. 375-378.
doi: 10.1109/ICM.2000.916481
M. Ghoneima, K. Sharaf, H. F. Ragai and A. El-Halim Zekry, "Low power units for the Viterbi decoder," Proceedings of the 43rd IEEE Midwest Symposium on Circuits and Systems (Cat.No.CH37144), Lansing, MI, 2000, pp. 412-415 vol.1.
doi: 10.1109/MWSCAS.2000.951671
M. M. Aly, K. Sharaf and H. F. Ragai, "On the utilization of strength-reduced architectures for adaptive equalizers," 2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings (IEEE Cat No.00CH36353), Geneva, 2000, pp. 287-290 vol.3.
doi: 10.1109/ISCAS.2000.856053
A. Helmy, K. Sharaf and H. Ragai, "A simplified analytical model for nonlinear distortion in RF bipolar circuits," Proceedings of the 43rd IEEE Midwest Symposium on Circuits and Systems (Cat.No.CH37144), Lansing, MI, 2000, pp. 966-969 vol.2.
doi: 10.1109/MWSCAS.2000.952914
A. Zamzam, M. El-Nozahi and H. F. Ragai, "A 60GHz stacked injection locking power amplifier," 2018 IEEE 19th Wireless and Microwave Technology Conference (WAMICON), Sand Key, FL, 2018, pp. 1-4.
doi: 10.1109/WAMICON.2018.8363910
S. B. Idres, M. El-Nozahi and H. F. Ragai, "A noise cancelling envelope detector for low power wireless sensor applications," 2015 IEEE International Symposium on Circuits and Systems (ISCAS), Lisbon, 2015, pp. 1302-1305.
doi: 10.1109/ISCAS.2015.7168880
O. El-Aassar, M. El-Nozahi and H. F. Ragai, "Loss mechanisms and switching performance analysis for efficient mm-Waves Class-E PAs," 2015 IEEE International Symposium on Circuits and Systems (ISCAS), Lisbon, 2015, pp. 1694-1697.
doi: 10.1109/ISCAS.2015.7168978
R. I. Gomaa, I. A. Shohdy, K. A. Sharshar, A. S. Al-Kabbani and H. F. Ragai, "Real-Time Radiological Monitoring of Nuclear Facilities Using ZigBee Technology," in IEEE Sensors Journal, vol. 14, no. 11, pp. 4007-4013, Nov. 2014.
doi: 10.1109/JSEN.2014.2357803
M. Ouda, E. Hegazi and H. F. Ragai, "Digital enhancement of frequency synthesizers," Proceedings of 2010 IEEE International Symposium on Circuits and Systems, Paris, 2010, pp. 973-976.
doi: 10.1109/ISCAS.2010.5537384
M. Ouda, E. Hegazi and H. F. Ragai, "Digital on-chip phase noise measurement," 2009 4th International Design and Test Workshop (IDT), Riyadh, 2009, pp. 1-5.
doi: 10.1109/IDT.2009.5404090
M. S. Salem, M. S. Salem, A. A. Zekry and H. F. Ragai, "Effect of parallel capacitance in increasing output power of electrostatic MEMS converters," 2007 Internatonal Conference on Microelectronics, Cairo, 2007, pp. 201-204.
doi: 10.1109/ICM.2007.4497693
M. M. Sakr, M. K. El-Shafie and H. F. Ragai, "Analysis and Modeling of RF-MEMS Disk Resonator," 2006 International Conference on MEMS, NANO, and Smart Systems, Cairo, 2006, pp. 19-22.
doi: 10.1109/ICMENS.2006.348208
M. K. El-Shafie, M. M. Sakr and H. F. Ragai, "Behavioral Modeling of RF-MEMS Disk Resonator," 2006 International Conference on MEMS, NANO, and Smart Systems, Cairo, 2006, pp. 23-26.
doi: 10.1109/ICMENS.2006.348209
A. Noman, K. Sharaf and H. F. Ragai, "5 mW, 64 dB SNDR, 4th order bandpass ΣΔ modulator for 10.7 MHz digital IF," Proceedings of the 12th IEEE International Conference on Fuzzy Systems (Cat. No.03CH37442), 2003, pp. 114-117.
doi: 10.1109/ICM.2003.1287735
M. S. Salem, M. S. Salem, S. I. Kayed and H. F. Ragai, "Comparison of radiation hardening techniques for standard CMOS technologies," Radio Science Conference, 2003. NRSC 2003. Proceedings of the Twentieth National, 2003, pp. D6-1-8.
doi: 10.1109/NRSC.2003.1217374
H. Hegazy, K. Sharaf and H. F. Ragai, "A comparative study of CMOS-based quadrature integrated LC VCO topologies," The 2002 45th Midwest Symposium on Circuits and Systems, 2002. MWSCAS-2002., 2002, pp. I-336-9 vol.1.
doi: 10.1109/MWSCAS.2002.1187225
A. Hassan, K. Sharaf, H. El-Ghitani and H. F. Ragai, "The design and implementation of a bandpass GM-C filter for Bluetooth," The 2002 45th Midwest Symposium on Circuits and Systems, 2002. MWSCAS-2002., 2002, pp. II-629-II-632 vol.2.
doi: 10.1109/MWSCAS.2002.1186940
A. Ahmed, K. Sharaf, H. Haddara and H. F. Ragai, "CMOS VCO-prescaler cell-based design for RF PLL frequency synthesizers," 2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings (IEEE Cat No.00CH36353), Geneva, 2000, pp. 737-740 vol.2.
doi: 10.1109/ISCAS.2000.856434
H. Shawkey, H. Elsimary, H. Ragaai and H. Haddara, "A low power VLSI neural network based arrythmia classifier," Proceedings. 11th IEEE Symposium on Computer-Based Medical Systems (Cat. No.98CB36237), Lubbock, TX, 1998, pp. 282-288.
doi: 10.1109/CBMS.1998.701376
§ AL-MOHANDES,I.H.,A.M.RASHED,H.F.RAGAIE, and M.K.ELSAID,
”Synthesis and Physical Design of DLX RISC Processor”, Proc. of the 16th National Radio Science Conf. NRSC’99, Feb. 23-25, 1999, pp. 1C26-8C26.
§ SHAWKEY,H.,H.ELSIMARY,H.HADDARA, and H.F.RAGAIE,
”Design of a VLSI Neural Network Arrhythmia Classifier”, ibid., pp. 1C27-10C27.
§ GALAL,S.H., M.S.TAWFIK, and H.F.RAGAIE,
”On the Design and Sensitivity of RC Sequence Asymmetric Polyphase Networks in RF Integrated Transceivers”, Int. Symposium on Circuits and Systems ISCAS’99, May 30-June 2, 1999, Orlando, USA Florida.
§ Kayed, S.I., H.F.RAGAIE, M.ABOU ELELA, and F.A.S.SOLIMAN,
”Analysis and Simulation of Wide-Band CMOS Second Generation Current Conveyors”, Int. Union of Radio Science URSI’99 (General Assembly), August 13-21, 1999, Toronto, Ontario, Canada, p. D2.3
§ GALAL,S.H., H.F.RAGAIE, and M.S.TAWFIK,
”RC Sequence Asymmetric Polyphase Networks for RF Integrated Transceivers”, IEEE Trans. On Circuits and Systems, Part II: Analog and Digital Signal Processing, Vol. 47, No. 1, Jan.2000, pp. 18-27.
§ ALY,M.M., K.SHARAF, and H.F.RAGAIE,
”On the Utilization of Strength-Reduced Architectures for Adaptive Equalizers”, Int. Symposium on Circuits and Systems ISCAS’2000, May 28-31, 2000, Geneva, Switzerland, CD-ROM, III-287
§ AHMED,A, K.SHARAF,H.HADDARA, and H.F. RAGAIE,
”CMOS VCO-Prescaler Cell-Based Design for RF PLL Frequency Synthesizers”, ibid., CD-ROM, II-737
§ A simplified analytical model for nonlinear distortion in RF bipolar circuits
Helmy, A.; Sharaf, K.; Ragai, H.;
Circuits and Systems, 2000. Proceedings of the 43rd IEEE Midwest Symposium on ,Volume: 2 , 8-11 Aug. 2000, Pages:966 - 969 vol.2
§ GHONEIMA, M., K.SHARAF, H.F.RAGAIE, and A. ZEKRY,
” Low Power Units for the Viterbi Decoder”, ibid.
§ On the SFDR performance of BJT RF circuits, an analytical approach
Helmy, A.; Sharaf, K.; Ragai, H.;
Microelectronics, 2000. ICM 2000. Proceedings of the 12th International Conference on , 31 Oct.-2 Nov. 2000, Pages:375 – 378
§ TAHER,S.and H.F.RAGAIE,
”Low Power Arcitectural Design of DCT”, MUG’2000, Portland-Oregon, Oct. 2000.
§ KARAM,M.,W.FIKRY,H.HADDARA,H.F.RAGAIE,
”Hot Carrier Rliability Simulation”,ibid.
§ KAYED,S.I., H.F.RAGAIE, ABO-ELELA,M., SOLIMAN,F,
“VLSI DESIGN AND IMPLEMENTATION OF ANALOG CMOS 2nd GENERATION CURRENT CONVEYORS”, Int. Symbosium on Circuits and Systems ISCAS’2001, May 28-31, 2001, Sydney, Australia
§ FAROUK, K.M., W..FIKRY, H..HADDARA, H.F.RAGAIE,
“Implementation of Hot-Carrier Reliability Simulation in Eldo”, ibid.
§ Analysis and optimization of noise in bipolar RF harmonic mixers
Helmy, A.; Sharaf, K.; Ragai, H.;
Circuits and Systems, 2001. MWSCAS 2001. Proceedings of the 44th IEEE 2001 Midwest Symposium on ,Volume: 2 , 14-17 Aug. 2001, Pages:829 - 832 vol.2
§ A CMOS single-CCII+ based VCO
Kayed, S.I.; Ragaie, H.F.; Abou El-Ela, M.; Soliman, F.A.S.;
Microelectronics, 2001. ICM 2001 Proceedings. The 13th International Conference on, 29-31 Oct. 2001, Pages:165 – 168
§ A new low power transconductor for Gm-C filters
Hassan, A.; Sharaf, K.; El-Ghitani, H.; Ragaie, H.F.;
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on ,Volume: 4 , 26-29 May 2002, Pages:IV-249 - IV-252 vol.4
§ VLSI design of CMOS image-reject LNA for 950-MHz wireless receivers
Moneim Youssef, A.A.; Sharaf, K.; Ragaie, H.F.; Marzouk Ibrahim, M.;
Circuits and Systems for Communications, 2002. Proceedings. ICCSC '02. 1st IEEE International Conference on , 26-28 June 2002, Pages:330 – 333
§ Impact of CMOS device scaling in ASICs on radiation immunity
Ragaie, H.; Kayed, S.;Electronic Devices, 2002. (EWAED). The First Egyptian Workshop on Advancements of , 28 Sept. 2002, Pages:18 – 27
§ A 1.5 V opamp design with high gain, wide bandwidth and its application in a high Q bandpass filter operating at 10.7 MHz
Hammouda, S.A.; Tawfik, M.S.; Ragaie, H.F.;Electronics, Circuits and Systems, 2002. 9th International Conference on ,Volume: 1 , 15-18 Sept. 2002 , Pages:185 - 188 vol.1
§ The design and implementation of a bandpass GM-C filter for Bluetooth
Hassan, A.; Sharaf, K.; El-Ghitani, H.; Ragai, H.F.;
Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on ,Volume: 2 , 4-7 Aug. 2002, Pages:II-629 - II-632 vol.2
§ A comparative study of CMOS-based quadrature integrated LC VCO topologies
Hegazy, H.; Sharaf, K.; Ragai, H.F.;
Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on , Volume: 1 , 4-7 Aug. 2002,Pages:I - 336-9 vol.1
§ A new rf CMOS mixer with a high performance in 0.18u technology
Salem, R.F.; Tawfik, M.S.; Ragaie, H.F.;
Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on , Volume: 2 , 4-7 Aug. 2002, Pages:II-262 - II-265 vol.2
§ ARCTAN Differentiated digital demodulator for FM/FSK digital receivers
Eissa, H.M.; Sharaf, K.; Ragaie, H.;
Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on , Volume: 2 , 4-7 Aug. 2002, Pages:II-200 - II-203 vol.2
§ Low voltage fully differential opamp with high gain wide bandwidth suitable for switched capacitor applications
Hammouda, S.A.; Tawfik, M.S.; Ragaie, H.F.;
Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on , Volume: 1 , 4-7 Aug. 2002, Pages:I - 324-7 vol.1
§ A new highly linear CMOS mixer suitable for deep submicron technologies
Salem, R.F.; Galal, S.H.; Tawfik, M.S.; Ragaie, H.F.;Electronics,
Circuits and Systems, 2002. 9th International Conference on ,Volume: 1, 15-18 Sept. 2002
Pages:81 - 84 vol.1