LIFETIME PUBLICATIONS

       

Published Journal Papers

 

[1] H.L. Abdel-Malek, A.S.O. Hassan and M.H. Bakr, "Statistical circuit design with the use of a modified ellipsoidal technique," International Journal of Microwave and Millimeter Waves Computer-Aided Engineering, vol. 7, 1997, pp. 117-129.

[2] M.H. Bakr, J.W. Bandler, R.M. Biernacki, S.H. Chen and K. Madsen, "A trust region aggressive space mapping algorithm for EM optimization," IEEE Trans. Microwave Theory Tech., vol. 46, 1998, pp. 2412-2425.

[3] M.H. Bakr, J.W. Bandler, N. Georgieva and K. Madsen, "A hybrid aggressive space mapping algorithm for EM optimization," IEEE Trans. Microwave Theory Tech., vol. 47, 1999, pp. 2440-2449.

[4] M.H. Bakr, J.W. Bandler and N. Georgieva, "An aggressive approach to parameter extraction," IEEE Trans. Microwave Theory Tech., vol. 47, 1999, pp.2428-2439.

[5] H.L. Abdel-Malek, A.S.O. Hassan and M.H. Bakr, "A boundary gradient search technique and its applications in design centering," IEEE Trans. CAD Integrated Circuits Systems, vol. 18, 1999, pp. 1654-1661.

[6] M.H. Bakr, J.W. Bandler, K. Madsen, J.E. Rayas-Sánchez and J. Søndergaard, "Space mapping optimization of microwave circuits exploiting surrogate models," IEEE Trans. Microwave Theory Tech., vol. 48, 2000, pp. 2297-2306.

[7] M.H. Bakr, J.W. Bandler, M.A. Ismail, J.E. Rayas-Sánchez and Q.J. Zhang, "Neural space mapping optimization for EM-based design," IEEE Trans. Microwave Theory Tech., vol. 48, 2000, pp. 2307-2315.

[8] M.H. Bakr, J.W. Bandler and K. Madsen, "Review of the space mapping approach to engineering optimization and modeling," Optimization and Engineering, January 2001, pp. 241-276.

[9] M.H. Bakr, J.W. Bandler, K. Madsen and J. Søndergaard, "An Introduction to the space mapping technique," Optimization and Engineering, vol. 2, 2002, pp. 369-384.

[10] M.H. Bakr, P.P.M. So and W.J.R. Hoefer, “The generation of optimal microwave topologies using time-domain field synthesis, ” IEEE Trans. Microwave Theory Tech., vol. 50, pp. 2537-2544, Nov. 2002.

[11] N. Georgieva, S. Glavic, M.H. Bakr and J.W. Bandler, "Feasible adjoint sensitivity technique for em design optimization," IEEE Trans. Microwave Theory Tech, vol. 50, December 2002, 2751-2758.

[12] J.W. Bandler, A.S. Mohamed, M.H. Bakr, K. Madsen and J. Søndergaard, "Em-based optimization exploiting partial space mapping and exact sensitivities," IEEE Trans. Microwave Theory Tech, vol. 50, December 2002, pp. 2741-2750.

[13] M.H. Bakr and N.K. Georgieva, “An adjoint variable method for frequency domain TLM problems with conducting boundaries,” IEEE Microwave and Wireless Components Letters, vol. 13, November 2003, pp. 408-410.

[14] J.W. Bandler, Q. Cheng, S.A. Dakroury, A.S. Mohamed, M.H. Bakr, Kaj Madsen and Jacob Søndergaard, “Space Mapping: the state of the art,” IEEE Trans. Microwave Theory Tech., vol. 52, January 2004, pp. 337-361.

[15] N.K. Nikolova, J.W. Bandler, and M.H. Bakr, “Adjoint techniques for sensitivity analysis in high-frequency structure CAD,” IEEE Trans. Microwave Theory Tech., vol. 52, January 2004, pp. 403-419.

[16]  E.A. Soliman, M.H. Bakr, and N.K. Nikolova, "Neural Networks - Method of Moments (NN-MoM) technique for the efficient filling of the MoM coupling matrix," IEEE Trans. Antennas Propagat., vo. 52, June 2004, pp. 1521-1529.

[17] M.H. Bakr and N.K. Nikolova, “An Adjoint Variable Method for Time Domain TLM with Fixed Structured Grids,” IEEE Trans. Microwave Theory Tech., vol. 52, February 2004, pp. 554-559.

[18] E.A. Soliman, M.H. Bakr, and N.K. Nikolova, “An adjoint variable method for sensitivity calculations of multiport devices,” IEEE Trans. Microwave Theory Tech., vol. 52, February 2004, pp. 589-599.

[19] M.H. Bakr and N.K. Nikolova, “An adjoint variable method for time domain TLM with wideband Johns matrix boundaries,” IEEE Trans. Microwave Theory Tech., vol. 52, February 2004, pp. 678-685.

[20] E.A. Soliman, M.H. Bakr, and N.K. Nikolova, “Modeling of microstrip lines using neural networks--applications to the design and analysis of distributed microstrip circuits,” International Journal of RF and Microwave Computer Aided Engineering, vol. 14, March 2004, pp. 166-173.

[21] N.K. Nikolova, H.W. Tam, and M.H. Bakr, “Sensitivity analysis with the FDTD method on structured grids,” IEEE Trans. Microwave Theory Tech., vol. 52, April 2004, pp. 1207-1216.

[22] S.M. Ali, N.K. Nikolova, and M.H. Bakr, “Sensitivity analysis with full-wave EM solvers based on structured grids,” IEEE Trans. Magnetics, vol. 40, May 2004, pp. 1521-1529.

[23] S.M. Ali, N.K. Nikolova, and M.H. Bakr, “A central adjoint variable method for sensitivity analysis,” IEEE Trans. Magnetics, vol. 40, No. 4, July 2004, pp. 1969-1971.

[24] S.M. Ali, N.K. Nikolova, and M.H. Bakr, "Recent advances in sensitivity analysis with frequency-domain full-wave EM solvers," Applied Computational Electromagnetics Society Journal, vol. 19, No. 3, pp. 147-154, Nov. 2004.

[25]  P.A.W. Basl, M.H. Bakr and N.K. Nikolova, “Efficient estimation of sensitivities in TLM with dielectric discontinuities,” Microwave and Wireless Components Letters, vol. 15, No. 2, February 2005, pp.  89-91.

[26]  E. A. Soliman, M. H. Bakr, and N. K. Nikolova, “Accelerated gradient-based optimization of planar circuits,” IEEE Trans. Antennas Propagat., vol. 53, No. 2, February 2005, pp. 880-883.

[27] M.H. Bakr and N.K. Nikolova, “Efficient estimation of adjoint-variable S-parameter sensitivities with time domain TLM,”   International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, vol. 18, No. 2, March 2005, pp. 171-187.

[28] J.W. Bandler, A.S. Mohamed, and M.H. Bakr, “TLM-based modeling and design exploiting space mapping,” IEEE Trans. Microwave Theory Tech, vol. 53, No. 9, September 2005, pp. 2801-2811.

[29] P.A.W. Basl, M.H. Bakr, and N.K. Nikolova, An AVM technique for 3D TLM with symmetric condensed nodes, IEEE Microwave and Wireless Components Letters, vol. 15, No. 10, October 2005, pp. 618-620.

[30]  M.H. Bakr, N.K. Nikolova, and P.A.W. Basl, “Self-Adjoint S-Parameter Sensitivities for Lossless Homogeneous TLM Problems,” International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, vol. 18, issue 6, November 2005, pp. 441-455.

[31] P. Abolghasem, M.H. Bakr, W.J.R. Hoefer, and P.P.M. So, “A Transformed TLM Formulation for Adjoint Variable-based Sensitivity Analysis,” IEEE Microwave and Wireless Components Letters, vol. 15, November 2005, pp. 817-819.

[32]  N.K. Nikolova, J. Zhu, D. Li, M.H. Bakr, and J.W. Bandler, “Sensitivities of Network Parameters with Electromagnetic Frequency-domain Simulators,” IEEE Trans. Microwave Theory Tech, vol. 54,  No. 2,  Feb. 2006, pp. 670 - 681.

[33] M.A. El Sabbagh and M.H. Bakr, “Analytical dielectric constant sensitivity of ridge waveguide filters,” Journal of Electromagnetic Waves and Applications, volume 20, number 3,  2006, page 363-374.

[34] Ali, S.M., N.K. Nikolova, and M.H. Bakr, “A discrete adjoint variable method for printed circuit board CAD,” INFORMS Journal on Computing, vol. 18, No. 2, Spring 2006, pp. 186–196.

[35]  M.A. El Sabbagh, M.H. Bakr, and N.K. Nikolova, “Sensitivity Analysis of the Scattering Parameters of Microwave Filters using the Adjoint Network Method,” Rf and Microwave Computer Aided Engineering (RFMiCAE), vol. 16, No. 6, Nov. 2006, pp. 596-606.

[36] N.K. Nikolova, Y. Li, Y. Li, and M.H. Bakr, “Sensitivity Analysis of Scattering Parameters with Electromagnetic Time-domain Simulators,” IEEE Trans. Microwave Theory Tech, vol. 54, No. 4, April 2006, pp. 1598-1610.

[37] S.M. Ali, N.K. Nikolova, and M.H. Bakr, “Semi-analytical Approach to Sensitivity Analysis of Lossy Inhomogeneous Structures,” Applied Computational Electromagnetics Society Journal, vol. 22, No. 2,  2007.

[38] M.A. Swillam, M.H. Bakr, N.K. Nikolova, and X. Li, “Adjoint sensitivity analysis of dielectric discontinuities using FDTD,” Journal of Electromagnetics , vol. 27 , no. 2, Feb. 2007, pp. 123-140.

[39]  M.A. El Sabbagh, M.H. Bakr, and J.W. Bandler, “Adjoint higher-order sensitivities for fast full-wave optimization of microwave filters,” IEEE Trans. Microwave Theory Tech., vol. 54, August 2006, pp. 3339-3351.

[40] M. A. Swillam, M. H. Bakr, and X. Li, “The design of multilayer optical coatings using convex optimization,” IEEE  J. Lightwave Technology, vol. 25 , no. 4, Apr. 2007, pp. 1078 - 1085.

[41] M. A. Swillam, M. H. Bakr, and X. Li, “Accurate sensitivity analysis of photonic devices exploiting the finite- difference time-domain central adjoint variable method,” J. Applied Optics, vol. 46 , no. 9, Mar. 2007, pp. 1492-1499.

[42] M. A. Swillam, M. H. Bakr, and X. Li, “Efficient Adjoint sensitivity analysis exploiting the FD-BPM,” IEEE J. Lightwave Technology, vol. 25, no. 7, Jul. 2007, pp. 1861 - 1869.

[43] S.M. Ali, N.K. Nikolova, and M.H. Bakr, “Semi-analytical approach to sensitivity analysis of lossy inhomogeneous structures,” Applied Computational Electromagnetics Society Journal, vol. 22, no. 2, pp. 219-227, July 2007.

[44] D. Li, J. Zhu, N.K. Nikolova, M.H. Bakr, and J.W. Bandler, “Electromagnetic optimization using sensitivity analysis in the frequency domain,” IET Microwaves, Antennas and Propagation, vol. 1, No. 4, pp. 852–859, Aug. 2007.

[45]  M.A. Swillam, M.H. Bakr, and X. Li , “Efficient adjoint sensitivity analysis exploiting the FD-BPM,” IEEE/OSA Journal of Lightwave Technology, vol. 25, no. 7, pp. 1861 – 1869, July 2007.

[46] P.A.W. Basl, M.H. Bakr, and N.K. Nikolova, “Theory of self-adjoint S-parameter sensitivities for lossless nonhomogeneous transmission-line modeling problems,” IET Microw. Antennas Propag., vol. 2, No. 3, pp. 211–220, Apr. 2008.

[47] C. H. Chen, Y. L. Wang, M.H. Bakr, and Z. Zeng, “Novel noise parameter determination for on-wafer microwave noise measurements,” IEEE Trans. Instrumentation and Measurement, vol. 57, pp. 2462-2471, November 2008.

[48] D. Li, J. Zhu, N.K. Nikolova, M.H. Bakr, and J.W. Bandler, “Electromagnetic optimization using sensitivity analysis in the frequency domain,” IET Microw. Antennas Propag., vol. 1, No. 4, pp. 852–859, Aug. 2007.

[49] P.A.W. Basl, M.H. Bakr, and N.K. Nikolova, “Time-domain sensitivity analysis of planar structures using first-order one-way wave equation boundaries,” Int. J. of Numerical Modelling: Electronic Networks, Devices and Fields, vol. 21, No. 5, pp. 287–296, Sep./Oct. 2008.

[50] Y. Song, Ying Li, N.K. Nikolova, and M.H. Bakr, “Self-adjoint sensitivity analysis of lossy dielectric structures with electromagnetic time-domain simulators,” Int. J. of Numerical Modelling: Electronic Networks, Devices and Fields, vol. 21, No. 1–2, pp. 117–132, Jan.–Apr. 2008.

[51]  Y. Song, N.K. Nikolova, and M.H. Bakr, “Efficient time-domain sensitivity analysis using coarse grids,” Applied Computational Electromagnetics Society Journal, vol. 23, No. 1, pp. 5–15, Mar. 2008.

[52] C. H. Chen, Y. L. Wang, and M.H. Bakr, “Wave-based approach for microwave noise characterization,” Fluctuation and Noise Letters, vol. 8, issue 1, pp. R1-R14, March 2008, Invited Paper.

[53]  M.A. Swillam, M.H. Bakr, and X. Li, “Full wave sensitivity analysis of guided wave structures using FDTD,” J.  Electromag. waves applicat. (JEMWA), vol. 22, no. 16, pp 2135-2145, 2008.

[54]  M.A. Swillam, M.H. Bakr, and X. Li, “Full vectorial 3D  sensitivity analysis and design optimization using BPM,” IEEE J. Lightwave Technology, vol. 26, pp. 528 – 536, Mar. 2008.

[55]   M.A. Swillam, M.H. Bakr, and X. Li, “Efficient 3D sensitivity analysis of surface plasmon waveguide structures,” Optics Express, vol. 16, pp. 16371-16381 Oct. 2008.

[56]  P.A.W. Basl, M.H. Bakr, and N.K. Nikolova, “Time-domain sensitivity analysis of planar structures using first-order one-way wave equation boundaries,” Int. J. of Numerical Modelling: Electronic Networks, Devices and Fields, vol. 21, No. 5, Sep./Oct. 2008, pp. 287–296.

[57]  M.A. Swillam, M.H. Bakr, X. Li and J. Deen, “Efficient sensitivity analysis of time independent Schrödinger equation with application to quantum lasers,” Optics Communications, vol. 281, pp 4169-4554, Sep. 2008.

[58] M. A. Swillam, M.H. Bakr, and X. Li, “Design optimization of compact wideband optical switch exploiting stair case index MMI,” IEEE J. Lightwave Technology, vol. 27. pp 80 – 87, Jan. 15th 2009.

[59] P.A.W. Basl, M.H. Bakr, and N. K. Nikolova, “Efficient transmission line modeling sensitivity analysis exploiting rubber cells,” Progress In Electromagnetics Research B, vol. 11, pp. 223-243, 2009.

[60] S. Koziel,  J. Meng, J.W. Bandler,  M.H. Bakr, Q.S. Cheng, “Accelerated Microwave Design Optimization With Tuning Space Mapping,” IEEE Trans. Microwave Theory Tech., vol. 57, Feb. 2009, pp. 383 – 394.

[61] M. A. Swillam, R. H. Gohary, M.H. Bakr, and X. Li, “Efficient approach for sensitivity analysis of lossy and leaky structures using FDTD,” J. Progress in Electromagnetic Research (PIER), vol. 94, page 197-212, 2009.

[62]  N.K. Nikolova, X. Zhu, Y. Song, A. Hasib, and M.H. Bakr, “S-parameter sensitivities for electromagnetic optimization based on volume field solutions,” IEEE Trans. Microwave Theory Tech., vol. 57, No. 6, pp. 1526–1538, Jun. 2009.

[63]  M.H. Bakr,  P. Zhao, and  N.K. Nikolova, “Adjoint first order sensitivities of transient responses and their applications in the solution of inverse problems,” IEEE Trans. Antennas Propagat., vol. 57, July 2009,  pp. 2137 – 2146.

[64] G.S.A. Shaker, M.H. Bakr, N. Sangary, and S. Safavi-Naeini “Accelerated antenna design methodology exploiting parameterized Cauchy models,” J. Progress in Electromagnetic Research (PIER  B) , vol. 18, pp. 279-309, 2009.

[65] M.A. Swillam, M.H. Bakr, and X. Li, “Efficient design of integrated wideband polarization splitter/combiner” IEEE J. Lightwave Technology, vol. 28, pp. 1176-1183, 2010.

[66] P.A.W. Basl, R.H. Gohary, M.H. Bakr, and R. Mansour, “Modeling of electromagnetic responses using a robust multidimensional Cauchy interpolation technique,” IET Microwaves, Antennas & Propagation, accepted.

[67] O.S. Ahmed, M.A. Swillam, M.H. Bakr, and X. Li, “An efficient optimization approach for accurate parameter extraction with terahertz time domain spectroscopy,” IEEE J. Lightwave Technology, vol. 28, pp. 1685-1692, 2010.

[68] S. Koziel, S. Ogurtsov, and M.H. Bakr, “Variable-fidelity design optimization of microwave devices using multi-dimensional Cauchy approximation and coarsely discretized electromagnetic models,” J. Progress in Electromagnetic Research (PIER) B,  vol. 21, pp. 1-26, 2010.

[69] Q.S. Cheng, J.W. Bandler, S. Koziel, M.H. Bakr, S. Ogurtsov, “The State of the Art Microwave CAD:
EM-based Optimization and Modeling,” and Microwave Computer Aided Engineering (RFMiCAE), accepted.

[70] S. Koziel, S. Ogurtsov, and M.H. Bakr, “Computationally efficient design optimization of wideband planar antennas using Cauchy approximation and space mapping,” Microwave and Optical Technology Letters, accepted.

[71]  O.S. Ahmed, M.A. Swillam, M.H. Bakr, and X. Li., ”Modeling and design of nano-plasmonic structures using transmission line modeling,” Optics Express, vol. 18, No. 21, Oct. 2010, pp.  21784-21797.

[72]  Y. Zhang, N.K. Nikolova, and M.H. Bakr, “Input impedance sensitivity analysis of patch antenna with discrete perturbations on method-of-moment grids,” Applied Computational Electromagnetics Society Journal, accepted.

[73] A.G. Radwan, M.H. Bakr, and N.K. Nikolova, “Transient adjoint sensitivities for discontinuities with Gaussian material distribution,” J. Progress in Electromagnetic Research (PIER) B,  27, pp. 1-19, 2010.

 

 

 

Presented Conference Papers

[1] M.H. Bakr, J.W. Bandler, R.M. Biernacki, S.H. Chen and K. Madsen, "A trust region aggressive space mapping algorithm for EM optimization," IEEE MTT-S Int. Microwave Symp. Dig. (Baltimore, MD), 1998, pp. 1759-1762.

[2] M.H. Bakr, J.W. Bandler, R.M. Biernacki, S.H. Chen and K. Madsen, "A new space mapping algorithm for EM optimization" TRIO Meeting (Ottawa, ON), 1998.

[3] M.H. Bakr, J.W. Bandler, R.M. Biernacki and S.H. Chen, "Automated electromagnetic optimization for RF, wireless and microwave circuits," CITO Retreat (Hamilton, Ontario), 1998.

[4] J.W. Bandler, M.H. Bakr, N. Georgieva, M.A. Ismail and D.G. Swanson., Jr., "Recent results in electromagnetic optimization of microwave components, including microstrip T-junctions," (invited), Proc. 15th Annual Review of Progress in Applied Computational Electromagnetics ACES 99 (Monterey, CA), 1999, pp. 326-333.

[5] M.H. Bakr, J.W. Bandler and N. Georgieva, "Modeling of microwave circuits exploiting space derivative mapping," IEEE MTT-S Int. Microwave Symp. Dig. (Anaheim, CA), 1999, pp. 715-718.

[6] M.H. Bakr, J.W. Bandler and N. Georgieva, "An aggressive approach to parameter extraction," IEEE MTT-S Int. Microwave Symp. Dig. (Anaheim, CA), 1999, pp. 261-264.

[7] M.H. Bakr, J.W. Bandler, N. Georgieva and K. Madsen, "A hybrid aggressive space mapping algorithm for EM optimization," IEEE MTT-S Int. Microwave Symp. Dig. (Anaheim, CA), 1999, pp. 265-268.

[8] J.W. Bandler, M.H. Bakr and J.E. Rayas-Sánchez, "Accelerated optimization of mixed EM/circuit structures," Proc. Workshop on Advances in Mixed Electromagnetic Field and Circuit Simulation, IEEE MTT-S Int. Microwave Symp. (Anaheim, CA), 1999.

[9] M.H. Bakr, J.W. Bandler, K. Madsen, J.E. Rayas-Sánchez and J. Søndergaard, "Space mapping optimization of microwave circuits exploiting surrogate models," IEEE MTT-S Int. Microwave Symp. Dig. (Boston, MA), 2000, pp. 1785-1788.

[10] M.H. Bakr, J.W. Bandler, M.S. Ismail, J.E. Rayas-Sánchez and Q.J. Zhang, "Neural space mapping optimization for EM-based design of RF and microwave circuits," Proc. First International Conference on Surrogate Modelling and Space Mapping for Engineering Optimization (Copenhagen, Denmark), 2000.

[11] M.H. Bakr, J.W. Bandler, M.A. Ismail, J.E. Rayas-Sánchez and Q.J. Zhang, "Neural frequency-space mapping optimization of EM microwave structures," IEEE MTT-S Int. Microwave Symp. Dig. (Boston, MA), 2000, pp. 879-882.

[12] M.H. Bakr, J.W. Bandler, Q.S. Cheng, M.S. Ismail and J.E. Rayas-Sánchez, "SMX-A novel object-oriented optimization system," IEEE MTT-S Int. Microwave Symp. (Phoenix, AZ), 2001, pp. 2083-2086.

[13] M.H. Bakr, N. Georgieva and W.J.R. Hoefer, "Efficient derivative estimation for the optimization of microstrip antennas," AP-RASC’01 Dig. (Tokyo, Japan), 2001, pp. 92.

[14] M.H. Bakr and W.J.R. Hoefer, "Electromagnetic synthesis: A novel concept in microwave design," 31st European Microwave Conference Dig., London, England, 2001.

[15] M.H. Bakr, P.P.M. So and W.J.R. Hoefer, "Time domain field synthesis with 3D TLM symmetric condensed node," IEEE MTT-S Int. Microwave Symp. Dig. (Seattle, WA), 2002, pp. 1131-1134.

[16] P.P.M. So, M.H. Bakr and W.J.R. Hoefer, "A paradigm for electromagnetic field synthesis by monochromatic injection," 18th Annual Review of Progress in Applied Computational Electromagnetics ACES 2002 (Monterey, CA).

[17] N. Georgieva, S. Glavic, M.H. Bakr and J.W. Bandler, " Adjoint variable method for design sensitivity analysis with the method of moments," 18th Annual Review of Progress in Applied Computational Electromagnetics ACES 2002 (Monterey, CA), pp. 195-201.

[18] N. Georgieva, S. Glavic, M.H. Bakr and J.W. Bandler, "Feasible adjoint sensitivity technique (FAST) for EM design optimization," IEEE MTT-S Int. Microwave Symp. Dig. (Seattle, WA), 2002, pp. 971-974.

[19] J.W. Bandler, A.S. Mohamed, M.H. Bakr, K. Madsen and J. Søndergaard, "EM-based optimization exploiting partial space mapping and exact sensitivities," IEEE MTT-S Int. Microwave Symp. Dig. (Seattle, WA), 2002, pp. 2101-2104.

[20] R. Safian, N.K. Nikolova, M.H. Bakr, and J.W. Bandler, “Feasible adjoint sensitivity technique for EM design exploiting Broyden’s update,”  IEEE MTT-S Int. Microwave Symp. Dig. (Philadelphia, PA), 2003, pp. 299-302.

[21] M.H. Bakr and N.K. Nikolova, “An adjoint variable method for time domain TLM with fixed structured grids,” IEEE MTT-S Int. Microwave Symp. Dig. (Philadelphia, PA), 2003, pp. 1121-1124.

[22]  G. Shen, H.W.W. Tam, N.K. Nikolova, and M.H. Bakr, "Adjoint sensitivity technique for FDTD methods on structured grids,"  IEEE Int. Symposium on Antennas and Propagation Dig., (Columbus, OH), 2003, pp. 746-749.

[23]  S.M. Ali, N.K. Nikolova, and M.H. Bakr, "Design sensitivity analysis for optimization with the frequency domain TLM," Proceedings of the CCECE 2003 (Montreal), May 2003, pp. 1971-1974.

[24]  J.W. Bandler, Q.S. Cheng; S.A. Dakroury; A.S. Mohamed, M.H. Bakr; K. Madsen and J. Sonderdaard, “Space Mapping: The State of the Art”, International Microwave and Optoelectronics Conference – IMOC 2003, Brazil.

[25] M.H. Bakr and N.K. Nikolova, “Efficient adjoint sensitivity estimation for time-domain techniques with structured grids,” 20th Annual Review of Progress in Applied Computational Electromagnetics ACES 2004 (Syracuse, NY).

[26] N.K. Nikolova, S.M. Ali, M.H. Bakr, E.A. Soliman and J.W. Bandler, “Response sensitivity analysis with frequency-domain full-wave electromagnetic solvers,”  20th Annual Review of Progress in Applied Computational Electromagnetics ACES 2004 (Syracuse, NY).

[27] Ali, S.M., N.K. Nikolova, and M.H. Bakr, “Sensitivity analysis and optimization utilizing an approximate auxiliary problem,” IEEE/URSI Int. Symposium on Antennas and Propagation (Monterey, CA), vol. 1, June 2004, pp 1118-1121.

[28] P.A.W. Basl, M.H. Bakr and N.K. Nikolova, “Adjoint sensitivities of real objective functions for time-domain TLM,” Proceedings of the 10th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) and URSI Conference (Ottawa, ON), July 2004, pp. 123-126.

[29]  J.W. Bandler, Q.S. Cheng, D.M. Hailu, A.S. Mohamed and M.H. Bakr, “Recent trends in space mapping technique,” Asia Pacific Microwave Conference, Delhi, India, December 2004.

[30]  P.A.W. Basl, M.H. Bakr, and N.K. Nikolova, “Advances in the Adjoint Variable Method for Time-Domain Transmission Line Modeling,” IEEE/ACES 2005, Hawaii, USA, April 2005.

[31] S.M. Ali, N.K. Nikolova, and M.H. Bakr, “Non-destructive testing and evaluation utilizing frequency-domain em modeling,” IASTED 2005, Banf, Alberta.

[32] S. M. Ali, N. K. Nikolova, and M. H. Bakr,  “Semi-analytical approach for sensitivity analysis with lossy dielectrics,”  IEEE Int. Symposium on Antennas and Propagation Dig., (Washington, DC.), 2005.

[33]  M.H. Bakr and N.K. Nikolova, “Self-adjoint S-parameter sensitivities for TLM problems,” 22nd Annual Review of Progress in Applied Computational Electromagnetics ACES 2006 (Miami, FL).

[34] N.K. Nikolova, Y. Li, Y. Li, and M.H. Bakr, “Self-adjoint sensitivity analysis of linear electromagnetic problems in the time domain,” 22nd Annual Review of Progress in Applied Computational Electromagnetics ACES 2006 (Miami, FL).

[35] P.A. W. Basl, M.H. Bakr and N.K. Nikolova, “Accelerating cauchy interpolation using adjoint sensitivities,” 22nd Annual Review of Progress in Applied Computational Electromagnetics ACES 2006 (Miami, FL).

[36] P. Basl, M.H. Bakr, and N.K. Nikolova, “Efficient sensitivity analysis of lossy discontinuities using time-domain TLM,” Antem/URSI 2006 Conference Proc., July 2006, pp. 613-616.

[37] D. Li, N.K. Nikolova, and M.H. Bakr, “Optimization using Broyden-update self-adjoint sensitivities,” 2006 IEEE AP-S/URSI/AMEREM Int. Symp., July 2006, pp. 573-576.

[38] Y. Li, Y. Li, N.K. Nikolova, and M.H. Bakr, “Time domain sensitivity analysis of lossy dielectric structures,” Frontiers of Applied Computation Electromagnetics (FACE) 2006 CDROM (Victoria, BC), June 2006.

[39] P. Abolghasem, M.H. Bakr, and N.K. Nikolova, “Adjoint-based TLM sensitivities exploiting the hybrid symmetrical condensed node,” Frontiers of Applied Computation Electromagnetics (FACE) 2006 CDROM (Victoria, BC), June 2006.

[40] Y. Li, N.K. Nikolova, and M.H. Bakr, “TLM-based self-adjoint sensitivities of S-parameters with time-domain electromagnetic solvers,” IEEE MTT-S Int. Microwave Symposium Digest, June 2006, pp. 165-168.

[41] M.A. Swillam, M.H. Bakr, and X. Li, “A novel design approach for multilayer dielectric filters exploiting linear programming,” IEEE/Antenna and propagation international symposium, Hawaii, 2007.

[42] M.A. Swillam, M.H. Bakr, and X. Li, “Accurate and efficient sensitivity extraction of complex structures using FDTD,”  Photonics North, Ottawa, 2007, Best student paper award..

[43] M.A. Swillam, M.H. Bakr, and X. Li, “BPM based efficient sensitivity analysis exploiting the adjoint variable method,” Integrated Photonics and Nanophotonics Research and Applications (IPNRA), Salt Lake City, Utah, 2007.

[44] M.A. Swillam, M.H. Bakr, and X. Li, “Design of multilayer optical filters using linear programming based on autocorrelation sequences,” Integrated Photonics and Nanophotonics Research and Applications (IPNRA), Salt Lake City, Utah, 2007.

[45] D. Hailu, N.K. Nikolova, and M.H. Bakr, “Sub-wavelength microwave radar imaging for detection of breast cancer tumors,” Int. Symp. on Signals, Systems, and Electronics (ISSSE 2007), July–Aug. 2007, pp. 107–110.

[46]  M.A. Swillam, M.H. Bakr, N. K. Nikolova, and X. Li, “Second order accurate sensitivities of dielectric discontinuities using FDTD,” The 24th  International Review of Progress in Applied Computational Electromagnetics (ACES), pp. 1034–1039, Niagara falls March 2008.

[47] P. Zhao, M.H. Bakr, and N.K. Nikolova, “Microwave imaging exploiting adjoint based surrogate models,” The 24th  Int. Review of Progress in Applied Computational Electromagnetics (ACES 2008), pp. 74–79, Niagra Falls, March 2008.

[48] M.H. Bakr, K. Wang, and M.J. Deen, “Accuracy improvement of magnetic tracking systems using ANNs and space mapping modeling,” The 24th  Int. Review of Progress in Applied Computational Electromagnetics (ACES 2008), pp. 603–608, Niagra Falls, March 2008.

[49] M.H. Bakr and N.K. Nikolova, “Adjoint sensitivities for efficient optimization of high-frequency structures,” 13th Biennial IEEE Conference on Electromagnetic Field Computation (IEEE CEFC 2008), Athens, May 2008.

[50] X. Zhu, A. Hasib, N.K. Nikolova, and M.H. Bakr, “Efficient electromagnetic optimization using self-adjoint Jacobian computation based on a central-node FDFD method,” IEEE MTT-S Int. Microwave Symposium, June 2008, pp. 979–982.

[51] P.A.W. Basl, M.H. Bakr, and N.K. Nikolova, “Efficient TLM sensitivity analysis exploiting rubber cells,” IEEE MTT-S Int. Microwave Symposium, June 2008, pp. 53–56.

[52] J. Meng, S. Koziel, J.W. Bandler, M.H. Bakr, and Q.S. Cheng, "Tuning space mapping: a novel technique for engineering design optimization," IEEE MTT-S Int. Microwave Symp. Dig. (Atlanta, GA, June 2008), pp 991-994.

[53]  M. A. Swillam, M.H. Bakr, and X. Li, “Accurate and efficient sensitivity analysis using the beam propagation method,” Photonics North, proceedings of SPIE 7099: 70991C-1–70991C-8. Montreal 2008.

[54]  M. A. Swillam, M.H. Bakr, and X. Li, “Efficient approach for 3D full vectorial sensitivity analysis using ADI-BPM,” Integrated Photonics and Nanophotonics Research and Applications (IPNRA), OSA Technical Digest (CD): IWF8. 1–3, Boston 2008.

[55]  M. A. Swillam, M.H. Bakr, and X. Li, “Wide band optical switch using stair case MMI,” LEOS Annual Meeting, Newport Beach 2008.

[56]  M.H. Bakr, P. Zhao, N.K. Nikolova, and N. Sangary, “Adjoint sensitivity analysis of transient responses exploiting the TLM method,” The 25th  Int. Review of Progress in Applied Computational Electromagnetics (ACES 2009).

[57]  P.A.W. Basl , M.H. Bakr, and N.K. Nikolova, “Sensitivity analysis of microstrip structures in TLM using one-way wave equation absorbing boundaries,” The 25th  Int. Review of Progress in Applied Computational Electromagnetics (ACES 2009).

[58]  M.A. Swillam, M.H. Bakr, and X. Li, “Modal sensitivity analysis of guided wave structures using one FDTD simulation,” The 25th  Int. Review of Progress in Applied Computational Electromagnetics (ACES 2009).

[59] M.A. Swillam, M.H. Bakr, and X. Li, “Efficient sensitivity of Hermitian and non-Hermitian optical Quantum structures,”  The 25th  Int. Review of Progress in Applied Computational Electromagnetics (ACES 2009).

[60] G.S.A. Shaker, S. Safavi-Naeini, N. Sangary, and M.H. Bakr, “A generalized modal analysis method for antenna design,” IEEE/Antennas and Propagation International Symp. Dig.,  (Charleston, SC, June 2009), pp. 1–4.

[61] G.S.A. Shaker, M.H. Bakr, S. Safavi-Naeini, and N. Sangary, “Space mapping-based optimization exploiting tolerant Cauchy approximations,” IEEE MTT-S Int. Microwave Symp. Dig. (Boston, MA, June 2009), pp 521-524.

[62] M.A. Swillam, M.H. Bakr, and X. Li, “Ultra-wideband integrated 2x2 optical router using novel MMI design,” Conference of Integrated Optics: Devices, Materials, and Technology, January 2010, San Francisco.

[63] M.A. Swillam, M.H. Bakr, and X. Li, “Efficient sensitivity analysis of surface plasmon waveguide structures,” Conference of Integrated Optics: Devices, Materials, and Technology, January 2010, San Francisco.

[64] A.G. Radwan, M.H. Bakr, and N.K. Nikolova, “Transient adjoint sensitivities for problems with multiple discontinuities exhibiting space dependent properties,”  The 26th  Int. Review of Progress in Applied Computational Electromagnetics (ACES 2010), Tampere, Finland.

[65] A.O. Montazeri, M.H. Bakr, and Y. Haddara, “An approximate boundary condition for piezoelectric crystals using FDTD,” The 26th  Int. Review of Progress in Applied Computational Electromagnetics (ACES 2010), Tampere, Finland.

[66] S. Koziel, S. Ogurtsov, and M.H. Bakr, “Cauchy approximation and coarse-mesh EM simulation for multi-fidelity optimization of microwave structures,” The 26th  Int. Review of Progress in Applied Computational Electromagnetics (ACES 2010), Tampere, Finland.

[67] Y. Zhang, N.K. Nikolova, and M.H. Bakr, “Sensitivity analysis with discrete perturbations on method-of-moments grids,” The 26th  Int. Review of Progress in Applied Computational Electromagnetics (ACES 2010), Tampere, Finland.

[68] M.A. Swillam, M.H. Bakr, and X. Li, “Efficient approaches for dispersion engineering of guided wave components,” SPIE Photonic North, Niagara Falls, 2010.

[69]  M.H. Bakr, S.M. Ali, and J. Warden, “Dynamic real time tuning of antenna matching circuit in the receiving mode,” IEEE/Antenna and propagation symposium (APS), Toronto, 2010.

[70] Y. Zhang, M.H. Bakr, and N. K. Nikolova, “An efficient algorithm for solving inverse source problems using time domain TLM,” IEEE/Antenna and propagation symposium (APS), Toronto, 2010.

[71] M.A. Swillam, R.H. Gohary, M.H. Bakr, and X. Li, “Efficient modelling and sensitivity analysis of lossy structures using FDTD,” IEEE/Antenna and propagation symposium (APS), Toronto, 2010.

[72]  S. Koziel, S. Ogurtsov, and M.H. Bakr, “Efficient design optimization of UWB antennas using Cauchy approximation and space mapping,” IEEE/Antenna and propagation symposium (APS), Toronto, 2010.

[73]  S.M. Ali, M.H. Bakr, and J. Warden, “Dynamic real-time calibration for antenna matching in the transmission mode,” IEEE/Antenna and propagation symposium (APS), Toronto, 2010.

[74] O.S. Ahmed, M.A. Swillam, M.H. Bakr, and X. Li, “Efficient Material Parameters Estimation with Terahertz Time Domain Spectroscopy,” Photonic West 2011, San Francisco, California, USA, 2011, accepted.

[75]  M.H. Bakr , Y. Zhang, and N.K. Nikolova, “The solution of thick region inverse source problems with time domain TLM,” PIER 2011, Marakesh, Morroco, accepted.

 

Workshops

[76] J.W. Bandler, M.A. Ismail, J.E. Rayas-Sánchez and M.H. Bakr, "Space mapping-based device modeling and circuit optimization," Proc. Workshop on Automated Circuit Optimization Using Electromagnetic Simulators, IEEE MTT-S Int Microwave Symp. (Boston, MA), 2000.

[77]  J.W. Bandler, M.H. Bakr, J.E. Rayas-Sánchez, M.A. Ismail and Q.S. Cheng, "Space Mapping-based device modeling and circuit optimization," (invited), Proc. Workshop on Optimum and Global Electromagnetic Modeling Using Hybrid Techniques from Analysis to Optimization, 30th European Microwave Conf. (Paris, France), 2000.

[78]  M.H. Bakr, J.W. Bandler, K. Madsen and J. Søndergaard, "Theory and applications of the space mapping technique," Proc. Workshop on Microwave Component Design using Space Mapping Methodologies, IEEE MTT-S Int. Microwave Symp. (Seattle, WA), 2002.

[79] J.W. Bandler, Q.S. Cheng, S.A. Dakroury, A.S. Mohamed, M.H. Bakr, K. Madsen and J. Søndergaard, “EM-based component modeling and design using space mapping,” Workshop on Microwave Component Design Using Optimization Techniques, IEEE MTT-S IMS, Philadelphia, PA, 2003. 

[80] M.H. Bakr, “Extracting sensitivities from full-wave electromagnetic solutions,” EMC 2005, Zurich, Switzerland, February 2005.

[81] M.H. Bakr, “Adjoint sensitivities in microwave imaging and design tuning,” Workshop on EM-Based Microwave Optimization Technology: State of the Art and Applications, IEEE MTT-S IMS, Boston, MA, 2009.

[82] M.H. Bakr, “Time domain sensitivity analysis and its applications: state of the art,” Workshop on Advances in Modeling and Optimization of High Frequency Structures, Reykjavik, Iceland, August 2010.

 

 

Patents

[1]   36250-Us-Pat “Dynamic real-time calibration for antenna matching in a radio frequency receiver system,” filed.

 

[2]   36251-Us-Pat “Dynamic real-time calibration for antenna matching in a radio frequency transmitter system,” filed.