Ahmed Kord, PhD

Postdoctoral Research Scientist, Columbia University

Download a copy of my CV here (last updated on 6/8/2019).

Education

Ph.D., the University of Texas at Austin, Austin, TX, USA, Aug. 2014 - May 2019

  • GPA: 4.0/4.0
  • Courses: Analog IC design, RFIC Design, Nano‐Photonics, Electromagnetic Field Theory, Computational Electromagnetics, Advanced Electrodynamics, Metamaterials - (Auditiing: RF and Microwave Engineering, Laser and Optical Engineering).
  • Thesis: Magnetless Circulators Based on Linear Time-Varying Circuits.

M.Sc., Cairo University, Cairo, Egypt, Dec. 2012 - March 2014

  • GPA: 4.0/4.0
  • Courses: CMOS Data Converters, Microwave Circuits and Components, High‐Power Microwave Sources, Advanced Electromagnetics, Computational Electromagnetics, Computers and Numerical Analysis, Optical Fiber Systems.
  • Thesis: CRLH Waveguides with Double-Ridge Corrugations: Analysis and Applications.

B.Sc., Cairo University, Cairo, Egypt, Sept. 2006 - July 2011

  • GPA: 92.6/100 (top 1% of my class).
  • Thesis: Implantable CMOS Blood Pressure Sensors for Non-Invasive Biomedical Applications.

Research Experience

Postdoctoral Research Scientist, Columbia University, New York, NY, USA, May 2019 - Present

  • Working on non-reciprocal integrated circuits and systems for quantum computing.
  • Supervisor: Prof. Harish Krishnaswamy.

Graduate Research Assistant, the University of Texas at Austin, Austin, TX, USA, Aug. 2014 - April 2019

  • Worked on magnetless circulators for radar systems and wireless communications.
  • Worked on active microwave cloaking for super stealth technologies.
  • Supervisor: Prof. Andrea Alu.

Graduate Research Assistant, Cairo University, Cairo, Egypt, Dec. 2012 - Aug. 2014

  • Worked on CRLH waveguide devices and metamaterials.
  • Worked on computational EM (MoM, FDTD, FEM).

Undergraduate Research Assistant, Cairo University, Cairo, Egypt, Sept. 2010 - July 2011

  • Worked on implantable blood pressure sensors using CMOS integrated circuits.

Teaching Experience

Teaching Assistant, the University of Texas at Austin, Austin, TX, USA, Aug. 2014 - May 2015

  • Electromagnetic Engineering EE325 (Fall 2014, Spring 2015).

Assistant Lecturer, Cairo University, Cairo, Egypt, Feb. 2014 - Aug. 2014

  • RF and Microwave Engineering Laboratory (Spring 2014).
  • Senior project mentor (Summer 2014).

Teaching Assistant, Cairo University, Cairo, Egypt, Feb. 2013 - Jan. 2014

  • RF and Microwave Engineering Laboratory (Spring 2013, Fall 2013).
  • Electromagnetic Engineering I (Spring 2013).
  • Circuit Analysis II (Fall 2013).

Industrial Experience

Interim Engineering Intern, Qualcomm Inc., Boxborough, MA, USA, May 2018 - Aug. 2018

  • Worked on sub-6GHz RF systems and chips.

Part-time Consultant, Eureka Aerospace Inc., Pasadena, CA, USA, Dec. 2016 - Aug. 2017

  • Worked on antennas and high-power microwave sources.

Research Scientist, Intel Labs, Intel Corp., Hillsboro, OR, USA, June 2015 - Aug. 2015

  • Worked on magnetless circulators for full-duplex radios.

Entrepreneurial Experience

  • Worked with the office of technology commercialization (OTC) at UT-Austin to commercialize my Ph.D. research on magnetless circulators which resulted in licensing one of my patents to the startup company Silicon Audio/RF Circulator LLC, Austin, TX, USA.
  • Assisted in Silicon Audio/RF Circulator LLC’s fundraising efforts which successfully attracted an investment from Lockheed Martin Corporate.
  • Have been leading the technical efforts at Silicon Audio/RF Circulator LLC since 2015.

Proposal Preparation Experience

Microelectromechanical Resonant Circulator (MIRC), 2017 - 2019

  • Amount: $2.7M
  • Funding Agency: DARPA.
  • PIs: Matteo Rinaldi (NEU) and Andrea Alu (UT-Austin).

High‐Performance Parametric RF Integrated Non‐Reciprocal Circulators (HIPERION), 2017 - 2019

  • Amount: $1.8M
  • Funding Agency: DARPA.
  • PIs: Harish Krishnaswamy (Columbia) and Andrea Alu (UT-Austin).

Publications

Google Scholar: https://scholar.google.com/citations?user=aOIitp0AAAAJ&hl=en

Patents:

  1. A. Kord, D. L. Sounas, and A. Alù, "Magnetless Non-Reciprocal Devices Using Modulated Filters," provisional US patent application filed on Sept. 16, 2016. (IP is licensed to the startup company Silicon Audio/RF Circulator LLC, Austin, TX, USA)
  2. M. Rinaldi, C. Cassella, A. Alù, D. L. Sounas, and A. Kord, "Microelectromechanical Resonant Circulator (MIRC)," provisional US patent application filed on Nov. 1st, 2016.

Journals:

  1. Y. Yu, G. Michetti, A. Kord, M. Pirro, D. L. Sounas, Z. Xiao, C. Cassella, A. Alù, and M. Rinaldi, “Highly-linear Magnet-free Microelectromechanical Circulators,” IEEE J. Microelectromech. Syst. (MEMS), under review since May 28th, 2019.
  2. Y. Yu, G. Michetti, M. Pirro, A. Kord, D. L. Sounas, Z. Xiao, C. Cassella, A. Alù, and M. Rinaldi, “Radio Frequency Magnet-Free Circulators Basedon Spatiotemporal Modulation of Surface Acoustic Wave Filters,” IEEE Trans. Microw. Theory Techn., under review since May 28th, 2019.
  3. A. Kord, H. Krishnaswamy, and A. Alù, "Magnetless Circulators with Spur Suppression Based on N-Way Cyclic-Symmetric Time-Varying Networks," Phys. Rev. Appl., under review since April 1st, 2019.
  4. C. Cassella, G. Michetti, M. Pirro, Y. Yu, A. Kord, D. Sounas, A. Alù, and M. Rinaldi, "Radio Frequency Angular Momentum Biased Quasi-LTI Nonreciprocal Acoustic Filters," IEEE Trans. Ultrason. Ferroelectr. Freq. Control (UFFC), under review since Feb. 6th, 2019.
  5. A. Kord, M. Tymchenko, D. L. Sounas, H. Krishnaswamy, and A. Alù, "CMOS Integrated Magnetless Circulators Based on Spatiotemporal Modulation Angular-Momentum Biasing," IEEE Trans. Microw. Theory Techn., in press.
  6. A. Kord, D. L. Sounas, Z. Xiao, and A. Alù, "Broadband Cyclic-Symmetric Magnetless Circulators and Theoretical Bounds on Their Bandwidth," IEEE Trans. Microw. Theory Techn., vol. 66, no. 12, pp. 5472-5481, Dec. 2018.
  7. A. Kord, D. L. Sounas, and A. Alù, "Active Microwave Cloaking Using Parity-Time-Symmetric Satellites," Phys. Rev. Appl., vol. 10, no. 5, pp. 0540401 (1-15), Nov. 2018.
  8. D. L. Sounas, N. A. Estep, A. Kord, and A. Alù, "Angular-Momentum Biased Circulators and Their Power Consumption," IEEE Antennas Wireless Propag. Lett., vol. 17, no. 11, pp. 1963-1967, Nov. 2018. (Invited)
  9. A. Kord, D. L. Sounas, and A. Alù, "Pseudo‐Linear Time‐Invariant Magnetless Circulators Based on Differential Spatiotemporal Modulation of Resonant Junctions," IEEE Trans. Microw. Theory Techn., vol. 66, no. 6, pp. 2731‐2745, June 2018.
  10. A. Kord, D. L. Sounas, and A. Alù, "Magnetless Circulators Based on Spatiotemporal Modulation of Bandstop Filters in a Delta Topology," IEEE Trans. Microw. Theory Techn., vol. 66, no. 2, pp. 911‐926, Feb. 2018.
  11. A. Kord, D. L. Sounas, and A. Alù, "Achieving Full-Duplex Communication: Magnetless Parametric Circulators for Full‐Duplex Communication Systems," IEEE Microw. Mag., vol. 19, no. 1, pp. 84-90, Jan. 2018. (Invited)
  12. A. Kord and I. Eshrah, "Generalised Asymptotic Boundary Conditions and Their Application to Composite Right/Left-Handed Rectangular Waveguide with Double-Ridge Corrugations," IET Micow. Antennas Propag., vol. 8, no. 13, pp. 1014‐1020, Oct. 2014.

Conferences:

  1. A. Kord, D. L. Sounas, and A. Alù, "Non-Reciprocity Based on Synthetic Momentum Bias," in Proc. IEEE Int. Symp. Antennas Propag. (APS/URSI), Atlanta, GA, July 7-12, 2019. (Invited)
  2. A. Kord and A. Alù, "Magnet-Free Circulators Based on Linear Time-Varying Circuits," USNC-URSI Nat. Radio Sci. Meeting (NRSM), Boulder, CO, USA, Jan. 9-12, 2019.
  3. G. Michetti, C. Cassella, F. Pop, A. Kord, D. Sounas, A. Alù, and M. Rinaldi, "A Quasi-LTI Frequency-Selective SAW Circulator," in Proc. IEEE Int. Ultrasonic Symp. (IUS), Kobe, Japan, October, 2018.
  4. G. Michetti, C. Cassella, F. Pop, A. Kord, D. Sounas, A. Alù, and M. Rinaldi, "A Quasi-LTI Frequency-Selective SAW Circulator," in Proc. IEEE Int. Ultrasonics Symp. (IUS), Kobe, Japan, 2018. (Nominated for Best Student Paper Award in the Physical Acoustic section)
  5. A. Kord, D. L. Sounas, and A. Alù, "Broadband Non-Reciprocity in Spatio-Temporally Modulated Metamaterials," SIAM Conf. Math. Asp. Mater. Sci., Portland, OR, July 2018. (Invited)
  6. A. Kord, D. L. Sounas, and A. Alù, "Low-Loss Broadband Magnetless Circulators for Full-Duplex Radios," in Proc. IEEE MTT-S Int. Mircow. Symp. (IMS), Philadelphia, PA, June 2018.
  7. Y. Yu, F. Pop, G. Michetti, P. Kulik, M. Pirro, A. Kord, D. Sounas, A. Alù, and M. Rinaldi, "2.5 GHz Highly-Linear Magnetic-Free Microelectromechanical Resonant Circulator," in Proc. IEEE Int. Freq. Cont. Symp. (IFCS), Olympic Valley, CA, May 2018.
  8. Y. Yu, G. Michetti, A. Kord, D. Sounas, F. Pop, P. Kulik, M. Pirro, Z. Qian, A. Alù, and M. Rinaldi, "Magnetic-Free Radio Frequency Circulator based on Spatiotemporal Commutation of MEMS Resonators," in Proc. IEEE 31st Int. Conf. Micro Electro-Mech. Syst., Belfast, UK, Jan. 2018. (Nominated for Best Student Paper Award)
  9. D. L. Sounas, A. Kord, and A. Alù, "Magnetless Nonreciprocal Devices Based on Angular Momentum Biasing," USNC-URSI Nat. Radio Sci. Meeting (NRSM), Boulder, CO, Jan. 2018. (Invited)
  10. A. Kord, D. L. Sounas, and A. Alù, "Recent Advances on Angular‐Momentum Magnet‐Free Circulators," in Proc. IEEE Int. Symp. Antennas Propag. (APS/URSI), San Diego, CA, July 2017.
  11. A. Kord, D. L. Sounas, and A. Alù, "Differential Magnet‐less Circulator Using Modulated Bandstop Filters," in Proc. IEEE MTT-S Int. Mircow. Symp. (IMS), Honolulu, HI, June 2017.
  12. A. Kord, D. L. Sounas, and A. Alù, "Electromagnetic Devices for Next-Generation Wireless Communication Systems," in Proc. IEEE Texas Symp. Wireless Microw. Circ. Syst. (WMCS), Baylor, TX, March 2017.
  13. A. Kord, D. L. Sounas, and A. Alù, "Ultrathin Active Cloak with Balanced Loss and Gain," in Proc. IEEE Int. Symp. Antennas Propag. (APS/URSI), Fajardo, PR, July 2016.

Honors and Awards

  1. (2019) Prestigious Graduate Student Excellence Award from the University of Texas at Austin (Annually awarded to one graduate student in the entire ECE department).
  2. (2019) Travel Fellowship from USNC-URSI to attend the 2019 National Radio Science Meeting.
  3. (2018) IEEE Microwave Theory and Techniques Society Graduate Fellowship.
  4. (2018) Douglas Wilson Fellowship in Electrical and Computer Engineering from the University of Texas at Austin.
  5. (2017) Graduate Dean’s Prestigious Fellowship from the University of Texas at Austin.
  6. (2017) First Place Award in the Student Design Contest on Magnetless Parametric Circulators at the IEEE International Microwave Symposium.
  7. (2017) First Place Award in the Student Poster Competition at the IEEE Texas Symposium on Wireless Microwave Circuits and Systems.
  8. (2016) Qualcomm Innovation Fellowship. (Acceptance rate 6.2% from the top 18 US schools)
  9. (2016) IEEE Antennas and Propagation Society Doctoral Research Award.
  10. (2015) Travel Fellowship from MTT-S to attend the IEEE 2015 International Microwave Symposium.
  11. (2014) Provost PhD Fellowship from the University of California at Irvine for being among the top 5% of admitted graduate students in all disciplines. (Respectfully declined)
  12. (2014) Electrical and Computer Engineering Fellowship from the University of California at Irvine. (Respectfully declined)
  13. (2014) First Place Award in the Texas Instruments Outstanding Student Designer Contest in the EE 338L/382M Analog IC Class at the University of Texas at Austin.
  14. (2013) Travel Fellowship from Cairo University to attend the IEEE 2013 Antennas and Propagation Symposium.
  15. (2012) Graduate Fellowship from Cairo University for graduating among the top 1% of my class.
  16. (2011) Undergraduate Excellence Award from the Egyptian Ministry of Higher Education.
  17. (2011) First Place Award in Tarek Gamal Eldin’s Competition on Analog IC Design at Cairo University.

Invited TALks and Technical demos

  1. (06/03/2019) Invited talk at the IEEE 2019 International Microwave Symposium (IMS) in the workshop titled “Advanced Non-Reciprocal Technologies for High-Frequency Applications Based on Novel Approaches and Nanoscale Concepts.”
  2. (12/02/2018) Invited talk by Analog Devices Inc. in Cairo, EG.
  3. (06/12/2018) Invited talk by Huawei Corp. at the first RFIC Subsystem in Next Generation Wireless Technology Workshop hosted by the Futurewei IC Lab and the Wireless Lab in Philadelphia, PA, USA.
  4. (04/10/2017) Invited talk by the IEEE Solid‐State Circuits Society (SSCS) at the Department of Electrical Engineering at Southern Methodist University (SMU) in Dallas, TX, USA.
  5. (03/24/2015) Interactive technical demo at the 2015 South by Southwest (SXSW) in Austin, TX, USA.

hands-on Training Workshops

  • (02/02/2019) Startup camp on health innovations and entrepreneurship at UT-Austin.
  • (12/17/2018) RF and mm-wave measurements with Keysight experts at the Advanced Science Research Center (ASRC) in New York City, NY, USA.
  • (10/31/2014) Teaching assistance certification at UT-Austin.

Peer-Review Service

  • Journals: IEEE Microwave Magazine, IEEE Transactions on Microwave Theory and Techniques, IEEE Transactions on Circuits and Systems I, IEEE Transactions on Antennas and Propagation, IEEE Antennas and Wireless Propagation Letters, IEEE Microwaves and Wireless Components Letters.
  • Conferences: IEEE International Symposium on Antennas and Propagation (2016, 2017, 2018), IEEE International Student Conference on Engineering in Medicine and Biology (2013).

Computer Skills

  • EDA Tools: Cadence Virtuoso (schematic and layout), Cadence Spectre(RF), Mentor Graphics Calibre, Keysight ADS (schematic and layout), Keysight ADS HB/Momentum Cosim, NI Ultiboard.
  • EM Simulators: CST Microwave Studio, Keysight ADS Momentum, Keysight EMPro, Ansoft HFSS.
  • Programming Languages: Matlab, C/C++, VHDL, Assembly, Mathematica.
  • Graphic Design Tools: Microsoft Visio, Microsoft Office, Google Sketchup.

Measurement Skills

  • Experience with setting up and administrating new RF labs at UT-Austin and CUNY ASRC.
  • Hands‐on experience with Keysight, Rohde&Schwarz, and Anritsu sub-40GHz RF equipment including vector network analyzers, vector signal analyzers, vector signal generators, oscilloscopes, noise sources, power meters, and power supplies.
  • SCPI programming.