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Waleed Khalil

  • Associate Professor, Electrical & Computer Engr.
  • 205 Dreese Laboratories
    2015 Neil Ave
    Columbus, OH 43210
  • 614-292-0305

About

Education

Ph.D. 2008, Arizona State University

Areas of interest

RF and mm-wave circuits and systems, sub-THz circuits, front-end actives and passives, high performance clocking circuits, GHz A/D and D/A circuits.

Office

251 ElectroScience Laboratory; 1320 Kinnear Road, Columbus, OH 43212 or 468 Dreese Laboratories

Honors

  • October, 2012

    Plenary speaker.

  • February, 2012

    Nominated for College of Engineering David C. MCCarthy Engineering Teaching Award.

  • February, 2012

    NASA Space Technology Research Fellowships (NSTRF).

  • June, 2010-
    September, 2011

    Summer Faculty Fellowship.

  • January, 2011

    Science, Mathematics And Research for Transformation (SMART) Fellowship.

  • May, 2010

    Bronze medal in the circuit design technologies category at TSMC's 4th Outstanding Research Awards.

  • January, 2010

    Professional Instructor.

  • June, 2005

    Recipient of Intel Achievement Award.

  • January, 1996-
    January, 2004

    Seven Time Recipient of Intel’s Division Recognition Award (DRA).

  • January, 1992

    Dean's List.

Books

2011

  • Yoder, Samantha; Ismail, Mohammed; Khalil, Waleed. 2011. "VCO-based quantizers using frequency-to-digital and time-to-digital converters." Springer.

Chapters

2012

  • 2012. "Current and Emerging Trends in the Design of Digital-to-Analog Converters." In Design, Modeling and Testing of Data Converters, edited by P. Carbone, S. Kiaei, T. F. Xu,

2006

  • 2006. "Challenges in the Design of PLLs in Deep-Submicron Processes." In Radio design in nanometer technologies,

Journal Articles

2012

  • S. Balasubramanian, S. Boumaiza, H. Sarbishaei, T. Quach, P. Orlando, J. Volakis, G. Creech, J. Wilson, W. Khalil, 2012, "The Quest for a Fully Digital Transmitter: Ultimate Transmission." IEEE Microwave Magazine 13, 64-82 - 64-82.

2011

  • W. Khalil, S. Shashidharan, T. Copani, S. Chakraborty, S. Kiaei, and B. Bakkaloglu, 2011, "A 700-uA 405-MHz All-Digital Fractional-N Frequency-Locked Loop for ISM Band Applications." IEEE Trans. Microwave Theory and Techniques 59, no. 5, 1319-1326 - 1319-1326.

2007

  • W. Khalil, B. Bakkaloglu, S. Kiaei, 2007, "A Self-Calibrated, On-chip Phase Noise Measurement Circuit with -75dBc Single Tone Sensitivity at 100kHz Offset." IEEE Journal of Solid State Circuits 42, no. 12, 2758-2765 - 2758-2765.

2003

  • W. Khalil, T. Chang, X. Jiang, S. Naqvi, B. Nikjou, J. Tseng, 2003, "A Highly Integrated Analog Front-end for 3G." IEEE Journal of Solid State Circuits 38, no. 5, 774-781 - 774-781.

1992

  • Y. Liu, W. Khalil, P. Fischer, S. Chou, T.Y. Hsiang, S. Alexandrou, R. Sobolewski, 1992, "Nanoscale Ultrafast Metal-Semiconductor-Metal Photodetectors." IEEE Trans. Electron Devices 39, no. 11, 2674-2675 - 2674-2675.

Presentations

  • "Introduction to Phase Noise." 2011, Presented at Besser Asscoiates,
  • "Towards mm-Wave Design in Nanometer CMOS: Challenges and Solutions." 2012, Presented at U of Calgary, iRadio Lab,
  • "Short Course: Introduction to Wireless Radio Communications." 2004, Presented at Radio and Mixed Signal Integrated Systems (RAMSIS) 1st Summer School,
  • "Short Course:Wideband Frequency Synthesizers." 2008, Presented at Radio and Mixed Signal Integrated Systems (RAMSIS) 4th Summer School,
  • "Short Course: Frequency Synthesis for Wireless Systems." 2007, Presented at Radio and Mixed Signal Integrated Systems (RAMSIS) 3rd Summer School,
  • "Workshop: Accurate Tuning and Calibration of Fractional-N Frequency Synthesizers." 2008, Presented at IEEE RFIC Symposium,
  • "Short Course: Recent Advances in The Design of Wideband PLLs." 2009, Presented at Radio and Mixed Signal Integrated Systems (RAMSIS) 5th Summer School,
  • "Introduction to Phase Noise." 2010, Presented at Besser Associates,
  • "Workshop: Volumetric Switched Beam Array for 60 GHz Wireless Systems." 2010, Presented at IEEE MTT International Microwave Symposium (IMS),
  • "Ultra Wideband Direct Digital-to-RF D/A Architecture and Circuits." 2010, Presented at IEEE Dallas Circuits and Systems (DCAS),
  • "RF CMOS Design." 2012, Presented at Besser Associates,
  • "Negative Capacitance Circuits and Their Applications to ESD and Parasitic Capacitance Cancellation in High Speed IO Cells." 2010, Presented at Intel Research Labs,
  • "Short Course: Characterization and Measurement of Phase Noise and Jitter." 2010, Presented at ElectroScience Lab Consortium for EM and RF (CERF),
  • "Short Course: Millimeter Wave Circuits: Embracing The Next Wave of Wireless Communication." 2010, Presented at Radio and Mixed Signal Integrated Systems (RAMSIS) 6th Summer School,
  • "Short Course: Characterization and Measurement of Phase Noise and Jitter." 2011, Presented at ElectroScience Lab Consortium for EM and RF (CERF),
  • "Analysis of Phase Noise and Its Impact on RF Systems." 2005, Presented at IEEE International Conference on Electronics Circuits ad Systems, ICECS,
  • "Short Course: RF CMOS Design Solutions for 4G Wireless." 2006, Presented at Radio and Mixed Signal Integrated Systems (RAMSIS) 2nd Summer School,
  • "Tutorial: RFIC Circuit and System Design." 2007, Presented at IEEE RFIC Symposium,
  • "An On-Chip Phase Noise Analyzer." 2009, Presented at IBM Research Invited Talk,

Papers in Proceedings

2013

  • E.A. Alwan, S. Balasubramanian,J. G. Atallah,M. Larue, W. Khalil, K. Sertel, J.L. Volakis "Ultra-wideband Digital Beamformer with Significant SWAP-C Reduction." in Wireless Innovation Forum (SDR 2013). (1 2013).
  • Q. Wu, T. Quach, A. Mattamana, S. Elabd, S. R. Dooley, J. J. McCue, P. L. Orlando, G. Creech, W. Khalil "A 10mW 37.8GHz Current Redistribution BiCMOS VCO with an Average FOMT of -193.5dBc/Hz." in IEEE International Solid-State Circuits Conference (ISSCC). (2 2013).

2012

  • Khalil, W.; Wilson, J.; Dupaix, B.; Balasubramanian, S. et al. "Toward millimeter-wave DACs: Challenges and opportunities." (12 2012).
  • S. Balasubramanian, W. Khalil "Architectural Trends in GHz Speed DACs." in IEEE NORCHIPConference. (11 2012).
  • Khalil, W.; Wilson, J.; Dupaix, B.; Balasubramanian, S. et al. "Toward Millimeter-Wave DACs: Challenges and Opportunities." in IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS). (1 2012).
  • Q. Wu, T. Quach, A. Mattamana, S. Soliman, S. Dooley, J. McCue, P. L. Orlando, G. Creech, W. Khalil "Negative Capacitance Circuits Design Considerations for Wide Tuning Range mm-Wave VCOs." in IEEE Compound Semiconductor IC Symposium (CSICS 2012). (10 2012).
  • W. Khalil, J. Wilson, B. Dupaix, S. Balasubramanian, G. Creech "(invited) Toward Millimeter-Wave DACs: Challenges and Opportunities." in Compound Semiconductor IC Symposium (CSICS 2012). (10 2012).
  • E. A. Alwan, K. Sertel, W. Khalil, J. L. Volakis "Cost and Power Efficient Ultra-Wideband Digital Beamforming for Cognitive Sensing." in IEEE Antennas and Propagation Society International Symposium (APS 2012). (7 2012).
  • E.A. Alwan, S. Balasubramanian,J. G. Atallah,M. Larue, W. Khalil, K. Sertel, J.L. Volakis "Invited: Coding-Based Transceiver for Phased Array with Significant Hardware Reduction." in IEEE International Conference on Wireless Information Technology and Systems (ICWITS 2012). (11 2012).
  • S. Balasubramanian, W. Khalil "Architectural Trends in GHz Speed DACs." in IEEE Norchip Conference (Norchip 2012). (11 2012).
  • Khalil, W.; Wilson, J.; Dupaix, B.; Balasubramanian, S. et al. "Toward Millimeter-Wave DACs: Challenges and Opportunities." (1 2012).

2011

  • S. Yoder, W. Khalil, M. Ismail and G. Creech "Analysis and Modeling of Non-Idealities in VCO-Based Quantizers using Frequency-to-Digital and Time-to-Digital Converters." in Government Microcircuit Applications Conference (GOMAC). (3 2011).
  • J. Lowe, M. Deutch, G. Nelson, D. Sutton, W. Yates, P. Hansen, O. Eliezer, T. Jung, S. Morrison, Y. Liang, D. Rajan, S. Balasubramanian, A. Ramasami, W. Khalil "New Improved System for WWVB Broadcast." in 43rd Annual Precise Time and Time Interval (PTTI) Meeting. (11 2011).
  • J. McCue, S. Bou-Sleiman, L. Orlando, A. Mattamana, T. Quach, G. Creech, W. Khalil "Physical Modeling of a Parasitic Net Area Check (NAC) Tie-Down Diode for De-embedding." in 8th International Applied Computational Electromagnetics Society (ACES) Conference. (12 2011).
  • J. McCue, W. Khalil, L. Orlando, K. Groves, A. Mattamana, T. Quach and G. Creech "LNA Linearization at the Ka Band Using a .13µm SiGe Technology." in Government Microcircuit Applications Conference (GOMAC). (3 2011).

2010

  • W. Moulder, W. Khalil J. Volakis "60 GHz Volumetric Switched Beam Array." in IEEE Antennas and Propagation Society International Symposium and URSI Radio Science Meeting (APS/URSI 2010). (7 2010).
  • W. Moulder, W. Khalil J. Volakis "60 GHz Volumetric Switched Beam Array." in Antenna Technology (iWAT), 2010 International Workshop on. (3 2010).
  • S. Shashidharan, W. Khalil, S. Chakraborty, S. Kiaei, T. Copani, B. Bakkaloglu "A 700uA, 405MHz Fractional-N All Digital Frequency-Locked Loop for MICS Band Applications." in IEEE Radio Frequency Integrated Circuits Symposium (RFIC). (5 2010).
  • J. Hu ; W. Liu, W. Khalil, M. Ismail "Increasing sleep-mode efficiency by reducing battery current using a DC-DC converter." in IEEE International Midwest Symposium on Circuits and Systems (MWSCAS). (8 2010).
  • W. Liu, W. Khalil, M. Ismail E. Kussener "A Resistor-Free Temperature-Compensated CMOS Current Reference." in IEEE International Symposium on Circuits and Systems (ISCAS). (6 2010).
  • S.B. Sleiman, A. Akour, W. Khalil, M. Ismail "(Invited) Millimeter-wave BiST and BiSC using a high-definition sub-ranged detector in 90nm CMOS." in IEEE International Midwest Symposium on Circuits and Systems (MWSCAS). (8 2010).
  • Akour, A.; Khalil, W.; Volakis, J.; Ismail, M. "A compact model for mm-wave transmission lines and interconnects on lossy CMOS substrates." (12 2010).
  • A. Akour, W. Khalil, J. Volakis, M. Ismail "A Compact Model for mm-Wave Tramission Lines and Interconnects on Lossy CMOS Substrates." in IEEE International Electronics, Circuits and Systems Conference (ICECS). (12 2010).

2009

  • Hedayati, H.; Khalil, W.; Bakkaloglu, B. "A 1 MHz Bandwidth, 6 GHz 0.18 mu m CMOS Type-I Delta Sigma Fractional-N Synthesizer for WiMAX Applications." in IEEE International Solid-State Circuits Conference (ISSCC). (12 2009).
  • Hedayati, H.; Khalil, W.; Bakkaloglu, B. "A 1 MHz bandwidth, 6 GHz 0.18 μm CMOS type-I δσ fractional-N synthesizer for WiMAX applications." (12 2009).
  • H. Hedayati, W. Khalil, B. Bakkaloglu "A 1MHz-Bandwidth Type-I ΔΣ Fractional-N Synthesizer for WiMAX Applications." in IEEE International Solid-State Circuits Conference (ISSCC). (2 2009).
  • Hedayati, H.; Khalil, W.; Bakkaloglu, B. "A 1 MHz Bandwidth, 6 GHz 0.18 mu m CMOS Type-I Delta Sigma Fractional-N Synthesizer for WiMAX Applications." (12 2009).
  • M. Abdelmoneum, D. Browning, T. Arabi W. Khalil "Micro and Nano Electro Mechanical Systems (MEMS/NEMS) for Mobile Computing Systems." in IEEE Vehicular Technology Conference. (9 2009).

2008

  • Khalil, W.; Hedayati, H.; Bakkaloglu, B.; Kiaei, S. "(INVITED) analysis and modeling of noise folding and spurious emission in wideband fractional-N synthesizers." (9 2008).
  • W. Khalil, H. Hedayati, B. Bakkaloglu, S. Kiaei "(Invited) Analysis and Modeling of Noise Folding and Spurious Emission in Wideband ΣΔ Fractional-N Synthesizers." in IEEE Radio Frequency Integrated Circuits Symposium (RFIC). (6 2008).

2007

  • Khalil, W.; Bakkaloglu, B.; Klaei, S. "A self-calibrated on-chip phase-noise-measurement circuit with -75dBc single-tone sensitivity at 100kHz offset." (9 2007).
  • W. Khalil, B. Bakkaloglu, S. Kiaei "A Self-Calibrated, On-chip Phase Noise Measurement Circuit with -75dBc Single Tone Sensitivity at 100kHz Offset." in IEEE International Solid-State Circuits Conference (ISSCC). (2 2007).
  • A. Garcia, W. Khalil, B. Bakkaloglu, J. Martinez, E. Sanchez "(Invited) Built-in Self Test of RF Transceiver SoCs: from Signal Chain to RF Synthesizers." in IEEE Radio Frequency Integrated Circuits Symposium (RFIC). (6 2007).

2003

  • W. Khalil, T. Chang, X. Jiang, S. Naqvi, B. Nikjou "(Invited) Fully integrated AFE for WCDMA." in IEEE International Electronics, Circuits and Systems Conference (ICECS). (12 2003).

2002

  • T. Chang, X. Jiang, W. Khalil, S. Naqvi, B. Nikjou, J. Tseng "Analog front end IC for 3G WCDMA." in IEEE Symposium on VLSI Circuits. (6 2002).
  • Chang, T.Y.; Jiang, X.W.; Khalil, W.; Naqvi, S.R. et al. "Analog front end IC for 3G WCDMA." (1 2002).
  • X. Jiang, T. Chang, W. Khalil and B. Nikjou "Design techniques for intrinsic 10-bit high-speed R2R D/A Converter." in Design & Test Technology Conference (DTTC). (8 2002).
  • W. Khalil, T. Chang, X. Jiang, and B. Nikjou "Intel’s First Analog front end IC for 3G Wireless Communication." in Design & Test Technology Conference (DTTC). (8 2002).
  • Chang, T.Y.; Jiang, X.; Khalil, W.; Naqvi, S.R. et al. "Analog front end IC for 3G WCDMA." (12 2002).
  • Chang, T.Y.; Jiang, X.W.; Khalil, W.; Naqvi, S.R. et al. "Analog front end IC for 3G WCDMA." in Symposium on VLSI Circuits. (1 2002).

Unknown

  • Q. Wu, S. Elabd, J. J. McCue, W. Khalil "Analytical and Experimental Study of Tuning Range Limitation in mm-wave CMOS LC-VCOs." in IEEE International Symposium on Circuits and Systems (ISCAS 2013).
  • "Toward Millimeter-Wave DACs: Challenges and Opportunities." in Compound Semiconductor IC Symposium (CSICS 2012).

Patents

  • W. Khalil S. Balasubramanian. "An Ultra Wideband Digital-to-Analog Converter using Image Replica and Nonlinearity Cancelling Architecture."
  • W. Khalil, J. Volakis, E. Alwan, S. Balasubramanian. "ULTRA-WIDEBAND DIGITAL BEAMFORMER USING ON-SITE CODING TECHNIQUES."
  • K. Glass, W. Khalil, B. McDaniel. "High speed, low power, current mode comparator." Patent number: 6008673
  • K. Glass, W. Khalil, B. McDaniel. "Ultra high speed, low power, flash A/D converter utilizing a current mode regenerative comparator." Patent number: 6037890
  • K. Glass, W. Khalil, B. McDaniel. "Electronic system with high speed, low power, A/D converter." Patent number: 6121913
  • W. Khalil, C. Shi, J. Wilson. "Multiplexed digital-to-analog converters used in communication devices." Patent number: 6621437
  • Afghahi,Morteza; Waleed,Khalil; Sami,Issa. "Amplifier assisted active pixel read out structure." Patent number: 6717616
  • Jiang,Xuewen; Nikjou,Bobby,B; Khalil,Waleed; Naqvi,Syed,R. "Differential digital-to-analog converter." Patent number: 6924761
  • T. Chang, W. Khalil, B. Nikjou. "Method and circuit to reduce intermodulation distortion." Patent number: 6975846
  • W. Khalil. "Voltage controlled oscillator apparatus, method, and system." Patent number: 7034623
  • W. Khalil, T. Chang, B. Nikjou. "Self-calibrating tunable filter." Patent number: 7050781
  • X. Jiang, B. Nikjou, W. Khalil, S. Naqvi. "Differential digital-to-analog converter." Patent number: 7242338
  • J. Tseng, W. Khalil, B. Nikjou, L. Johnson. "Programmable gain amplifier with self-adjusting offset correction." Patent number: 7302246