Space-time modulated circuits

  1.  S. Y. Elnaggar and G. N. Milford ”Properties of translation operator and the solution of the eigenvalue and boundary value problems of arbitrary space–time periodic metamaterials”. Royal Society Open Science, vol. 8, 2021. doi:10.1098/rsos.210367, Author’s Copy.
  2.  S. Y. Elnaggar and G. N. Milford ”Modelling Space-time Periodic Structures with Arbitrary Unit Cells Using Time Periodic Circuit Theory”.  IEEE Transactions on Antennas and Propagation, vol. 68, 2020. doi:10.1109/TAP.2020.2985712, Author’s Copy.
  3. S. Y. Elnaggar and G. N. Milford ”Three Wave Mixing as the Limit of Nonlinear Dynamics Theory for Nonlinear Transmission Line Type Metamaterials”.  IEEE Transactions on Antennas and Propagation, vol. 66, no. 1, 2018. doi:10.1109/TAP.2017.2768577. Author’s Copy.
  4. S. Y. Elnaggar and G. N. Milford ”Description and Stability Analysis of Nonlinear Transmission Line Type Metamaterials using Nonlinear Dynamics Theory”. Journal of Applied Physics, vol. 121, No. 12, 2017. Author’s Copy.
  5. G. N. Milford and S. Y. Elnaggar. ”A Control Theory Approach to the Analysis of Propagation in Nonlinear Left and Right Handed Transmission Line Structures”. The Fifteenth Australian Symposium on Antennas, Sydney, 2017.
  6. S. Y. Elnaggar and G. N. Milford. ”Stability of Nonlinear Left Handed Transmission Lines Using Floquet Multipliers and Bifurcation Theory”. IEEE International Symposium on Antennas and Propagation/USNC-URSI, 2016.  Author’s Copy.
  7. S. Y. Elnaggar and G. N. Milford. ”Experimental and Numerical Analysis of Nonlinear Left Handed Transmission Lines using Three Wave Mixing”. Australian Microwave Symposium, Adelaide, 2016.  Author’s Copy.
  8. S. Y. Elnaggar and G. N. Milford. ”Analysis of Nonlinear Left-Haned Transmission Lines Using State Space Modelling”. International Symposium on Antennas and Propagation, Hobart, 2015.  Author’s Copy.
  9.  S. Y. Elnaggar , C. Saha, and Y. Antar ”Wireless Power Transfer via Dielectric Loaded Multimoded Split Cavity Resonator”. Journal of Applied Physics, vol. 126, 2019. doi:10.1063/1.5129280. Author’s Copy.
  10. S. Y. Elnaggar and G. N. Milford. ”Controlling Non-reciprocity using Enhanced Brillouin Scattering”.  IEEE Transactions on Antennas and Propagation, vol. 66, no. 7, 2018. doi:10.1109/TAP.2018.2835305.  Author’s Copy.

Wireless Power Transfer & Resonators

  1.  (Invited) S. M. Mattar, and S. Y. Elnaggar. ”Modes and Fields of Two Stacked Dielectric Resonators in a Cavity of an Electron Paramagnetic Resonance Probe”. Applied Magnetic resonance, 2017. doi:10.1007/s00723-017-0931-8.  Author’s Copy.
  2.  S. Y. Elnaggar ”An Electromagnetic Induced Transparency-like Scheme for Wireless Power Transfer Using Dielectric Resonators”. Journal of Applied Physics, vol. 121, No. 6, 2017. doi:10.1063/1.4975404.  Author’s Copy.
  3.  S. Y. Elnaggar, R. J. Tervo, and S. M. Mattar. ”Coupled Mode Theory in the presence of conductors”.  IEEE Transactions on Microwave Theory and Techniques, vol. 63, no. 7, 2015. doi:10.1109/TMTT.2015.2432766 (one of the 50 most popular TMTT articles in July 2015). Author’s Copy.
  4.  S. Y. Elnaggar, R. J. Tervo, and S. M. Mattar. ”Energy coupled mode theory for an arbitrary number of resonators”.  IEEE Transactions on Microwave Theory and Techniques, vol. 63, no. 7, 2015. doi:10.1109/TMTT.2015.2434377 (one of the 50 most popular TMTT articles in Jul, Aug 2015). Author’s Copy
  5. S. Y. Elnaggar, R. J. Tervo, and S. M. Mattar. ”General Expressions And Physical Origin Of The Coupling Coefficient Of Arbitrary Tuned Coupled Electromagnetic Resonators”. Journal of Applied Physics., vol. 118, 2015. doi:10.1063/1.4935634. Author’s Copy.
  6.  S. Y. Elnaggar, R. J. Tervo, and S. M. Mattar. ”Optimal dielectric and cavity configurations for improving the efficiency of electron paramagnetic resonance probes”. Journal of Magnetic Resonance. 245:50-57. 2014 doi:10.1016/j.jmr.2014.05.011.  Author’s Copy.
  7.  S. Y. Elnaggar, R. J. Tervo, and S. M. Mattar. ”General expressions for the Coupling Coefficient, Quality and Filling factors for a cavity with an insert using energy coupled mode theory”. Journal of Magnetic Resonance. 242:57-62. 201 doi:http://dx.doi.org/10.1016/j.jmr.2014.01.018.  Author’s Copy.
  8.  S. Y. Elnaggar, R. J. Tervo, and S. M. Mattar. ”Coupled modes, frequencies and fields of a dielectric resonator and a cavity using coupled mode theory”. Journal of Magnetic Resonance. 238:1-7. 2014. doi:http://dx.doi.org/10.1016/j.jmr.2013.10.016.  Author’s Copy.
  9.  S. M. Mattar, and  S. Y. Elnaggar. ”Analysis of two stacked cylindrical dielectric resonators in a T E 102 microwave cavity for magnetic resonance spectroscopy”. Journal of Magnetic resonance. 209:174–182. 2011. doi:http://dx.doi.org/10.1016/j.jmr.2011.01.004.  Author’s Copy.
  10. C. Saha, S. Y. Elnaggar and Y. Antar ”Impact of Losses in Wireless Power Transfer using DR Loaded Split Cavity Resonator”. IEEE International Microwave and RF Conference, 2019.
  11. S. Y. Elnaggar , C. Saha, and Y. Antar ”An Electromagnetic Induced Transparency-like Scheme for Wireless Power Transfer in Contained Aqueous Solutions”. IEEE MTT-S Wireless Power Transfer Conference, Montreal, 2018.
  12. S. Y. Elnaggar , C. Saha, and Y. Antar ”Effect of De-tunning on the Performance of DR-Loaded Split Cavity Resonator Based Wireless Power Transfer Scheme”. IEEE MTT-S Wireless Power Transfer Conference, Montreal, 2018.
  13. S. Y. Elnaggar and G. N. Milford. ”Forced Response of an arbitrary number of electromagnetic coupled resonators”. IEEE International Symposium on Antennas and Propagation/USNC-URSI, 2016. Author’s Copy.
  14.  K. Shreyo, S. Y. Elnaggar, C. Saha, Y. Antar “Highly Miniaturized Dielectric Layer Loaded Split Cavity Resonator for Wireless Power Transfer Applications”. IEEE 19th India Council International Conference (INDICON), 2022.

Computational Physics

  1. S. Y. Elnaggar and Y. M. Antar. ”An Electrodynamics Solver for Moving Sources”, URSI International Symposium on Electromagnetic Theory, 2023 (accepted).
  2. M. I. El-Banna and S. Y. Elnaggar. ”A proposed information model for device simulation based on Semiconductor Wafer Representation”. IEEE 46th Midwest Symposium on Circuits and Systems, 2003 doi:10.1109/MWSCAS.2003.1562538.  Author’s Copy.

Communications & Signal Processing

  1. S. Y. Elnaggar ”Understanding S parameters in time domain and the application to Two X Automatic Fixture Removal of high speed interconnects”, DesignCon 2022 (accepted). Author’s Copy
  2. S. Y. Elnaggar, B. Kirkland, E. Frlan ”Effect of Channel Scattering parameter Frequency Resolution and Maximum Frequency on the Simulation Accuracy of 112 Gb/s Links”, DesignCon 2021. Best Paper Award Finalist. Author’s Copy