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Publications

       Journal Papers 

 

 

  1. R. Emadi, R. Safian, A. Zeidaabadi Nezhad, "Theoretical Modeling of Terahertz Pulsed Photoconductive Antennas Based on Hot-Carriers Effect," IEEE Journal of Selected Topics in Quantum Electronics, vol.23, no.4, 2017.

  2. M. Eskandari, M. Dehmollaian, and R. Safian, “Simultaneous Microwave Imaging and Parameter Estimation Using Modified Level-Set Method,” IEEE Transactions on Antennas and Propagation, vol.64, no.8, pp.3564-3554, 2016.

  3. Emadi, N. Barani, R. Safian, A. Zeidaabadi Nezhad, "Hybrid Theoretical/Numerical Modeling of a Photoconductive Antenna in a Terahertz Pulsed System,"  Journal of Infrared, Millimeter, and Terahertz Waves, 2016.

  4. F. Zangeneh-Nejad, R. Safian, "A Significant Enhancement in the Efficiency of Graphene‐based Photoconductive Antennas," Journal of Nanophotonics, vol.10, no.3, pp: 036005, 2016.

  5. F. Zangeneh-Nejad, R. Safian, “Hybrid graphene-molybdenum disulphide based ring resonator for label-free sensing,” IEEE Optics Communications, vol. 371, pp. 9-14, 2016.

  6.  H. Nikaein, R. Safian, F. Zangeneh-Nejad, "Stripline Combline Filter Tunes 900 to 1300 MHz," Microwaves and RF Magazine, April, 2016.

  7. F. Zangeneh-Nejad, R. Safian, “A Graphene-Based THz Ring Resonator for Label-Free Sensing,” IEEE Sensors Journal, vol.16, no.11, pp.4338-4344, 2016.

  8. F. Zangeneh-Nejad, N. Barani and R. Safian, “Temperature dependence of electromagnetic radiation from terahertz photoconductive antennas,” Microwave and Optical Technology Letters, vol. 57, no. 11, pp.2475-2479, 2015.

  9. P. Rasekh, A. Torki, H. Khalili Rad, M. Razavian, R. Safian, “Time-Reversal Microwave Imaging Based on Independent Component Analysis in Continuous Random Media,” Progress In Electromagnetics Research M, vol. 44, pp.47–58, 2015.

  10. M. Rezaei, P. Rasekh, and R. Safian, “A Stripe Assisted Hybrid Plasmonic Waveguide for the Propagation of Terahertz Waves,” IEEE Photonics Technology Letters, vol.27, pp.21, 2015.

  11. M. Salar Kaleji, M. Zoofaghari, R. Safian, and Z.H. Firouzeh, “Effects of Wave Polarization on Microwave Imaging Using Linear Sampling Method,” Journal of Information Systems and Telecommunication (JIST), vol.3, pp.3, 2015.

  12. M.A. Panahi, S. AbdollahRamezani, G. Ebrahimzadeh Ardakani, and R. Safian, “An Efficient High Power RF Dummy-Load,” IEEE Microwave and Wireless Component Letters, vol.25, no.6, 2015.

  13. M. Ahmadzadeh, P. Rasekh, and R. Safian, G. Askari and H. Mirmohammad-sadeghi, “Broadband Rectangular High Power Divider/Combiner,” IET Microwaves, Antennas & Propagation Journal, vol.9, no.1, 2015.

  14. P. Rasekh, R. Safian," A New Low Loss Hybrid Plasmonic Slot Waveguide and It’s Application as an In-Line Fiber Polarizer," submitted to the IEEE/OSA Journal of Lightwave Technology.

  15. M. Razavian, M.H. Hosseini, R. Safian, "Time-Reversal Imaging Using One Transmitting Antenna Based on Independent Component Analysis," IEEE Geoscience and Remote Sensing Letters, vol.11, no.9, 2014.

  16. S.A. Amirhosseini and R. Safian, “A Novel Hybrid Waveguide for the Propagation of Surface Plasmon Polaritons at 1.55 m,” IEEE Transactions on Nanotechnology, vol.12, no.6, 2013.

  17. M. Eskandari, M. Dehmollaian, and R. Safian, “Experimental Investigation of Factorization Method as a Qualitative Approach for Near-Field Microwave Imaging,” IEEE Antennas and Wireless  Propagation Letters, vol.13, 2014.

  18. M. Eskandari, R. Safian, M. Dehmollaeian, “Three dimensional near-field microwave imaging in piecewise homogeneous background medium with compact support,” IEEE Transactions on Antennas Propagation, vol. 62, no. 10, 2014.

  19. M. Razavian, M. H. Hosseini, R. Safian, “Time-Reversal Imaging with One Transmitting Antenna Using Independent Component Analysis,” Geoscience and Remote Sensing Letters, vol.11, no.9, 2014.

  20. M. Razavian, M.H. Hosseini, and R. Safian, “Time-Reversal Imaging based on Random Configuration of Transmitters or Receivers,” Progress In Electromagnetics Research B, vol. 56, 2013.

  21. F. Tork Ladani, S. Jam, R. Safian, “A New SIW Resonator Excitation Method and Its Equivalent Circuit,” Microwave and Optical Technology Letters, vol. 55, no. 5, 2013. 

  22. F. Tork Ladani, S. Jam, R. Safian, “A Comment on ‘Analytical equivalence between substrate integrated waveguide and rectangular waveguide’,” IET Microwaves, Antennas & Propagation Journal, vol.7, no.1, 2013. 

  23. M.J. Kazemi, M.S. Dadash, and R. Safian, “Design and Implementation of a Band-Pass Filter Using Dielectric Resonators with a New Excitation Structure,” IET Microwaves, Antennas & Propagation, vol.5, no.12, 2011.

  24. M. Fereidani, A. Borji and R. Safian, “Relation between reflection phase and surface-wave band-gap in artificial magnetic conductors,” IEEE Transaction on Microwave Theory and Techniques, vol.59, no.8, 2011.

  25. M. Eskandari and R. Safian, “Inverse Scattering Method Based on Contour Deformations Using Fast Marching Method,” Institute of Physics (IOP): Inverse Problems, vol.26, no.9, 2010.

  26. M. Fereidani Samani, R. Safian, “On bandwidth limitation and operating frequency in artificial magnetic conductors,” IEEE Antennas and Wireless Propagation Letters, vol. 9, 2010.

  27. R. Safian, “Numerical Evaluation of the Scattering of Brillouin Precursors from Targets Inside Water,” IEEE Transactions on Antennas and Propagation, vol. 58, no. 2, 2010.

  28. H. Razavipour, R. Safian, G. Askari, F. Fesharaki, and H. Mirmohammad-Sadeghi, “A New Dual-Band High Power Ferrite Circulator,” Progress in Electromagnetic Research C (PIERS C), vol.10, 2009.

  29. R. Safian, C. D. Sarris, and M. Mojahedi, “On the Transmission and Propagation of Low Attenuation Rate Electromagnetic Pulses in Debye Media,” IEEE Transactions on Antenna and Propagation, vol. 57, no. 11, 2009.

  30. R. Safian, C. D. Sarris, and M. Mojahedi, “Asymptotic description of wave propagation in active Lorentzian medium,” Physical Review E, vol.75, 2007.

  31. R. Safian, C. D. Sarris, and M. Mojahedi, “Joint Time-Frequency and FDTD Analysis of Precursor Fields in Dispersive Media,” Physical Review E., vol. 3, 2006.

  32. N.K. Nikolova, R. Safian, E.A. Soliman, M.H. Bakr, and J.W. Bandler, “Accelerated gradient based optimization using adjoint sensitivities,” IEEE Trans. on Antennas Propagation, vol. 52, no. 8, 2004.

 

 

         Conference Papers 

 

  1. M. Amiri, S. Kaviani, R. Safian, “Optimization of Hybrid Plasmonic-Photonic structures for Sensing and Resonator Applications,” 22nd Iranian Conference on Optics and Photonics (ICOP 2016).

  2. R. Emadi; N. Barani; A. Amirhosseini; R. Safian,  “Hybrid Analysis Of Terahertz Photoconductive Antennas Using Energy Balance Transport Model,” 40th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THZ), 2015.

  3. F. Zangeneh-Nejad and R. Safian, “Graphene-Based High-Impedance THz Log-Spiral Antenna,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2014.

  4. P. Rasekh, and R. Safian, “A New Low Loss Hybrid Plasmonic Slot Waveguide and It’s Application as an In-Line Fiber Polarizer,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2014.

  5. B.Mansouri, Z.H Firouzeh, R Safian, “A Multi-Band Plannar Inverted-F antenna for Wireless communications Applications,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2014.

  6. M. Razavian, M. Zoofaghari, H. Elhami, and R. Safian,  “Differential Time‐Reversal Tracking Using Independent Component Analysis,” Ninth European Conference on Antennas and Propagation (EuCAP), 2015.

  7. R. Emadi, N. Barani, A. Amirhosseini and R. Safian, “Accurate Calculation of Excited Photocurrent in Terahertz Photoconductive Antennas by Using Energy Balance Transport Model,” Third Conference on Millimeter Wave & Terahertz Technologies (MMWATT), 2014.

  8. F. Zangeneh‐Nejad, R. Safian, “Graphene‐Based Archimedean Spiral THz Antenna,” Third Conference on Millimeter Wave & Terahertz Technologies (MMWATT), 2014.

  9. F. Zangeneh‐Nejad, R. Safian, “Graphene-Based High-Impedance THz Bow-Tie Antenna,” Third National Conference on Engineering Electromagnetics (ICEEM), 2014.

  10. R. Emadi, S.A. Amirhosseini and R. Safian, “ Rigorous Analysis of a Photoconductive Antenna in THz Regime by Using an Optoelectronic Solver,” Seventh International Symposium on Telecommunications (IST), 2014.

  11. M.R. Eskandari, R. Safian,  M. Dehmollaian, “Level Set Method as a Technique to Retrieve Target Shape from Blurred Indicator Function,” 22nd Iranian Conference on Electrical Engineering (ICEE) 2014.

  12. P. Rasekh, M. Razavian, A. Torki, R. Safian, “ Through the Wall Imaging Based on Time Reversal Independent Component Analysis,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2014.

  13. P. Rasekh, A. Amirhosseini, R. Safian,” A New In-Line Fiber Polarizer Based on the Hybrid Plasmonic Waveguide Structure,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2014.

  14. M.R. Eskandari, R. Safian, M. Dehmollaian,” Modified Level Set Method for Accurate Physical and Geometrical Reconstruction,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2014.

  15. M. Hossein Zadeh, A. Torki, P. Rasekh, R. Safian, “Design and Simulation of a Low Profile Antenna on a Vertical Stepped EBG,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2014.

  16. M. Salar Kaleji, M. Zoofaghari, R. Safian, “The Effect of Polarization in Shape Reconstruction of Two- Dimensional Penetrable and Non-penetrable Objects Using Linear Sampling Method,” 21st Iranian Conference on Electrical Engineering (ICEE) 2013.

  17. H. Mohammadzadeh, A. Zeidaabadi Nezhad, Z.H. Firouzeh, R. Safian, “Modified Physical Optics Approximation and Physical Theory of Diffraction for RCS Calculation of Dielectric Coated PEC,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2013.

  18. A. Azari, Z.H. Firouzeh, A. Zeidaabadi-Nezhad, R. Safian, “A New Approach for Transient Scattering of Infinite Conducting Cylinders – TE Case,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2013.

  19. M.R. Eskandari, R. Safian, Z.H. Firouzeh, M. Dehmollaian, “Qualitative Imaging of Penetrable Scatterer Using Near-Field Data,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2013.

  20. M. Razavian, R. Safian, Z.H. Firouzeh, “Time-Reversal Microwave Imaging Based on Independent Component  Analysis Algorithm,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2013.

  21. M. Salar Kaleji, R. Safian, Z.H. Firouzeh, “Shape Reconstruction of Two-Dimensional Targets Using TE-TM Hybrid Linear Sampling Method,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2013.

  22. A. Chapari, Z.H. Firouzeh, R. Safian, “A Compact Dual-Frequency Resonant Quadrifilar Helix Antenna,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2013.

  23. R.Safian, Kh. Sarhadi, A. Shahverdi, H. Ajam, “ Design and Implementation of a 4 KW, 500 MHz High Power Solid State RF Amplifier for Iran Light Source Facility (ILSF),” Forth  International Particle Accelerator Conference (IPAC), 2013.

  24. R.Safian, Kh. Sarhadi, A. Shahverdi, H. Ajam, “Design and Implementation of a 50KW Dummy Load at 500MHz for Iranian Light Source Facility (ILSF),” Forth  International Particle Accelerator Conference (IPAC), 2013.

  25. (Invited Paper) M. Razavian, M.H. Hosseini, R. Safian, “Time-Reversal Imaging Based on Random Arrangement of Transmitters,” International Symposium on Electromagnetic Theory (EMTS), 2013.

  26. R. Toreinia, R. Safian, “Design and Tuning of Wideband Two-layer Substrate Integrated Waveguide Directional Couplers,” Sixth International Symposium on Telecommunications (IST), 2012.

  27. M. K. Bashi, R. Safian, “Improvement of Time Reversal Focusing Resolution in Dispersive Media Using Double-Brillouin Pulse,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2012.

  28.  S.A. Amirhosseini, R. Safian, “New Silicon-Based Plasmonic Waveguide with Nano-Scale Gap at the Interface of Metal and Si,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2012.

  29.  M.H. Hosseini and R. Safian, “Characterization of Lossy Dielectric Targets Using Time Reversal Arrays,” IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting (AP-S/USNC-URSI), 2012.

  30. Kh. Sarhadi, D. Einfeld, R. Safian, et.al. “Status Report on the Iranian Light Source Facility Project, (ILSF),” Third  International Particle Accelerator Conference (IPAC), 2012.

  31. M. Eskandari and R. Safian, “Using Adaptive Dynamic Surfaces for Shape Reconstruction of Targets in Presence of Conductor Obstacles,” Advanced Electromagnetics Symposium (AES), 2012.

  32.  M. H. Hosseini, and R. Safian, “Detection of Inhomogeneities in Dielectric Targets using Time Reversal Technique,” Advanced Electromagnetics Symposium (AES), 2012.

  33.  A. Farnoush, A. Ghoreishi, H. Elhami, R. Safian, “A Novel Broadband High Power Coaxial-to-SIW Directional Coupler,” Advanced Electromagnetics Symposium (AES), 2012.

  34. M. Hedayati ,M.J. Kazemi , and R. Safian, “Design and Implementation of a Multi Triangular Microstrip Resonator Passband Filter Based on Mixed Coupling,”  IEEE International RF and Microwave Conference (RFM2011).

  35.  M. Hedayati, S. Hedayati, F. Shokouhi, R. Safian, “Novel Fractal Antenna Based on Two new Fractal Geometries,” IEEE International RF and Microwave Conference (RFM2011).

  36.  M. Hedayati, F. Shokouhi , R. Safian, “Sierpinski Based Fractal Antenna with Concurrent Slots,” IEEE International RF and Microwave Conference (RFM2011).

  37.  R. Safian, “High Power Solid State RF Amplifier Proposal for IRAN Light Source Facility (ILSF)”, Second International Particle Accelerator Conference (IPAC), 2011.

  38.  M. Zoofaghari, H. Elhami and R. Safian “Shape Reconstruction of Two Dimensional Conducting Objects in Vicinity of the Ground Plane Using Linear Sampling Method,” 13th International Symposium on Microwave and Optical Technology (ISMOT), 2011.

  39.  M. Mohammadi, R. Safian “Tunneling in Substrate Integrated Waveguide Structure at Microwave Frequency Range,” 13th International Symposium on Microwave and Optical Technology (ISMOT), 2011.

  40.  R. Safian “Joint Time-Frequency Analysis of Precursor Fields in One Dimensional Photonic Crystal,” 13th International Symposium on Microwave and Optical Technology (ISMOT), 2011.

  41.  M. Hedayati, M. Ahmadi, R. Safian “Wideband Microstrip Patch Antenna Exploiting a New Ceramic Fractal Structure,” 13th International Symposium on Microwave and Optical Technology (ISMOT), 2011.

  42.  Z. Pourgholamhossein, R. Safian “Wideband Double Layer Substrate Integrated Waveguide Directional Coupler,” Fifth International Symposium on Telecommunications (IST), Iran, 2010.

  43. M.J. Kazemi, M.S. Dadash, and R. Safian “Dielectric Resonator Band-Pass Filter with a New Excitation Structure,” IEEE Asia-Pacific Microwave Conference (APMC), 2010.

  44. (Second Prize: Best Student Paper Gold Award) F. Tork Ladani, S. Jam, R. Safian “A Novel X-Band Bandpass Filter Using Substrate Integrated Waveguide Resonators,” IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE), 2010.

  45.  B. Montazeri Najafabadai, R. Safian “Heat Distribution Pattern of Double Brillouin Pulse Inside Water”, IEEE International Microwave Symposium (IMS), 2010.

  46. M. Eskandari, A. Zeidaabadi Nezhad, R. Safian, “Microwave Imaging of Perfect Electric Conductors of Arbitrary Shape Using Level Set Method,” 18th Iranian Conference on Electrical Engineering (ICEE), 2010.

  47. M. Fereidani Samani, R. Safian, “A General Bandwidth Upper Limit for Artificial Magnetic Conductors,” IEEE Antennas and Propagation Symposium (APS), 2010.

  48. M. Eskandari, R. Safian, A. Zeidaabadi Nezhad, “Using Adaptive Dynamic Surfaces for Shape Reconstruction of Perfect Electric Conductors inside a Dielectric Surrounding.” IEEE Antennas and Propagation Symposium (APS), 2010.

  49. M. Eskandari, R. Safian, “Using Adaptive Dynamic Surfaces for Shape Reconstruction of Perfect Electric Conductors of Arbitrary Shape,” Asia-Pacific Microwave Conference (APMC), 2009.

  50.  A. Farsaei, R. Safian, “An Effective Method for Generating Initial Condition in Harmonic Balance Analysis Using Method of Nonlinear Currents,” Asia-Pacific Microwave Conference (APMC), 2009.

  51.  G. Ebrahimi and R. Safian, “Dependence of the Precursors on the Medium Parameters in passive Lorentzian Medium,” Conference on Advances in Computational Tools for Engineering Applications (ACTEA), 2009.

  52. A. Farsaei and R. Safian, “A Novel Method for Calculating Initial Condition in Harmonic Balance Analysis Exploiting Volterra Series,” Conference on Advances in Computational Tools for Engineering Applications (ACTEA), 2009.

  53. R. Safian, H. Mirzaei, H. Elhami, “Detection of objects inside water exploiting the Brillouin precursors,” 39th European Microwave Conference (EUMC), 2009.

  54. H. Mirzaei, A. Nasr-Azadani, R. Safian, H. Mirmohammad-Sadeghi, “A Novel Broadband High Power Coaxial-to-CPW Directional Coupler,” 39th European Microwave Conference (EUMC), 2009.

  55. F. Fesharaki, R. Safian, H. Razavipour, G. Askari, H. Mirmohammad-Sadeghi, “Technical Guidelines in Numerical Calculation of The Scattering Parameters in Filled Three Dimensional Waveguide Structures,” IEEE EUROCON, 2009.

  56. R. Safian, “Transient Band Evolution in Electromagnetic Bandgap Structures,” 38th European Microwave Conference (EUMC), 2008.

  57. R. Safian, C.D. Sarris, and M. Mojahedi, “Scattering of the Double Brillouin Pulse from a Perfect Electric Conductor inside Water,” IEEE Antennas and Propagation Symposium (APS), 2008.

  58. R. Safian, C.D. Sarris, and M. Mojahedi, “Practical Considerations on the Generation of Electromagnetic Pulses for Long-Range Propagation Inside Water,” IEEE URSI Symposium, 2007.

  59. R. Safian, C. D. Sarris, and M. Mojahedi, “Asymptotic description of electromagnetic pulse propagation in active Lorentzian media,” IEEE Antennas and Propagation Symposium (APS), 2006.

  60. R. Safian, C D. Sarris, and M. Mojahedi, “Numerical Calculation of Precursor Fields in One Dimensional Photonic Crystal,” Antennas, Radar, and Wave Propagation Conference (IASTED and IEEE AP-S), 2005.

  61. R. Safian, C.D. Sarris, and M. Mojahedi, “Time and Frequency Evolution of Precursor Fields in Dispersive Media using FDTD and Joint Time-Frequency,” IEEE Applied Computational Electromagnetics Society (ACES) International Conference, 2005.

  62. R. Safian, N. K. Georgieva, M. H. Bakr and J. W. Bandler, “Feasible Adjoint Sensitivity Technique for EM Design Exploiting Broyden Update,” IEEE International Microwave Symposium(IMS), 2003.