Tarek Djerafi

Areas of expertise

Wireless communications

Associate Professor

Phone
514-228-7031

E-mail
tarek.djerafi@inrs.ca

Énergie Matériaux Télécommunications Research Centre

800, De La Gauchetière W.
Suite 6900
Montréal, Quebec H5A 1K6
CANADA

See the research centre

Research interests

Substrate Integrated Circuits (SICs) and new transmission linesMicrowave passive and active ComponentsFrequency-Agile Smart StructuresAntenna array and beamforming networkCMOS antennaElectromagnetic compatibilityTerahertz Components.Radio Frequency and Millimeter-wave Identification RFID/MMIDLocal positioning systemMicrowave Heating: evaporation, dehydration, pasteurization and sterilization

Functions and biography

Tarek Djerafi received the B.Sc. degree from the Institut d’Aeronautique de Blida, Blida, Algeria, in 1998, and the M.A.Sc. and Ph.D. degrees (Hons.) in electrical engineering from the École Polytechnique de Montréal, Montréal, QC, Canada, in 2005 and 2011, respectively. He was with SCP SCIENCE, Montréal, as an EMC Expert from 2010 to 2011, a PostDoctoral Fellow with INRS-EMT, Montréal, from 2012 to 2014, and with École Polytechnique de Montréal from 2014 to 2015. He was a Research Associate with the Poly-Grames Research Center, Montréal, from 2015 to 2016. He is currently an Assistant Professor with the Institut National de Recherche Scientifique, Énergie Matériaux et Télécommunications, Montréal. His current research interests include the telecommunication antennas, beam forming networks, and RF/millimeter-wave/terahertz components and systems design.

Publications

· Refereed Journal Publications

[1]J. Guo, T. Djerafi, K. Wu “Mode Composite Waveguide, ” IEEE Transactions on Microwave Theory and Techniques, vol. PP, no.99, pp.1-11, 2016.

[2]F. Fesharaki, T. Djerafi, M. Chaker, K. Wu, “Low-Loss and Low-Dispersion Transmission Line over DC-to-THz Spectrum,” IEEE Transactions on Terahertz Science and Technology, vol. 6, no. 4, pp. 611-618, July 2016.

[3]P. Burasa, T. Djerafi, N. G. Constantin and K. Wu, “High Gbit/s Data-Rate for Single-Chip Battery-Free Active Millimeter-Wave Identification (MMID) Tag in 65-nm CMOS Technology” IEEE Transactions on Microwave Theory and Techniques, , vol. 64, no. 7, pp. 2294-2303, July 2016.

[4]D. Hammou, T. Djerafi, and K. Wu, S. Tatu, “Design Considerations for On Wafer Millimeter Wave Measurements on Thin Ceramic substrate,” IEEE Transactions on Instrumentation and Measurement, vol. 65, no. 2, pp. 441-447, Feb. 2016.

[5]T. Djerafi, “inside view,” ElectronicsLetters,vol.51, no.9, pp.657-657, April 2015.

[6]T. Djerafi, K. Wu, and S. O. Tatu, “Substrate Integrated Waveguide Phase Shifter with Rod-loaded Artificial Dielectric Slab,” Electronics Letters, vol.51, no.9, pp.707-709, April 2015.

[7]A. Doghri, T. Djerafi, A. Ghiotto, and K. Wu, “Substrate Integrated Waveguide Directional Couplers for Compact Three-Dimensional Integrated Circuits,” IEEE Transactions on Microwave Theory and Techniques, vol. 63, no. 1, pp.209-221, January 2015.

[8]A. Doghri, T. Djerafi, A. Ghiotto, and K. Wu, “Broadband E-Plane Junction for Three-Dimensional Substrate Integrated Waveguide Circuits and Systems,” IEEE Microwave and Wireless Components Letters, vol. 24, no. 11, pp.739-441, November 2014.

[9]T. Djerafi, K. Wu, and S. O. Tatu, “Small Foot-Print Substrate Integrated Waveguide Antenna Array for Broadband Circularly Polarized Radiation,” IET Microwaves, Antennas & Propagation, pp. 1179-1185, November 2014.

[10] T. Djerafi, K. Wu, and S. O. Tatu, “Ring-Shaped Substrate Integrated Waveguide Wilkinson Power Dividers/Combiners,” IEEE Transactions on Components, Packaging and Manufacturing Technology, vol.4, no.9, pp.1461-1469, September 2014.

[11] J. Attari, T. Djerafi, and K. Wu, “A 94GHz planar orthogonal mode transducer,” International Journal of Microwave and Wireless Technologie (special issue), 1-12, Apr. 2014.

[12] T. Djerafi, K. Wu, and S. O. Tatu, “3dB 90° Hybrid Quasi-Optical Coupler with Air Field Slab in SIW Technology,” IEEE Microwave and Wireless Components Letters, vol. 24, no. 4, pp.221,223, April 2014.

[13] A. B. Guntupalli, T. Djerafi, K. Wu, “Two-Dimensional Scanning Antenna Array Driven by Integrated Waveguide Phase Shifter” IEEE Transaction on Antennas and Propagation (special issue), vol.62, no.3, pp.1117,1124, March 2014.

[14] C. Hannachi, D. Hammou, T. Djerafi, Z. Ouardirhi and S. O.Tatu “Complete Characterization of Novel MHMICs for V-band Communication Systems,” Journal of Electrical and Computer Engineering, vol. 2013, pp.1-9, November 2013.

[15] T. Djerafi, A. Patrovsky, K. Wu, and S. O. Tatu, “Recombinant Waveguide Power Divider” IEEE Transactions on Microwave Theory and Techniques, vol. 61, no. 11, pp.3884-3891, November 2013.

[16] J. Attari, T. Djerafi, and K. Wu, “A Compact 94 GHz Image Substrate Integrated Non-Radiative Dielectric (iSINRD) Waveguide Cruciform Coupler,” IEEE Microwave and Wireless Components Letters, vol. 23, no. 10, pp.533-535, October 2013.

[17] T. Djerafi, and K.Wu, “Substrate Integrated Waveguide (SIW) Techniques: The State-of-the-Art Developments and Future Trends,” Journal of University of Electronic Science and Technology of China, vol.42, no.2, pp.171-192, Mars 2013.

[18] J. Attari, T. Djerafi, and K. Wu, “Fast and Accurate Simulation of Novel Millimeter-Wave Circuits Based on Commercial Software Package,” IEEE Microwave Magazine, vol. 14, no.2, pp. 106-111, Mars 2013.

[19] T. Djerafi, N. Ghassemi, O. Kramer, B. Youzkateli-el-Khatib, A. B. Guntupalli, and K. Wu, “Small Footprint Multilayered Millimeter-Wave Antennas and Feeding Networks for Multi-Dimensional Scanning and High-Density Integrated Systems,” Radioengineering journal (special issue), vol. 21, no.4, pp. 935-945, December 2012.

[20] O. Kramer, K. Wu, and T. Djerafi, “Dual-Layered Substrate Integrated Waveguide Six-Port with Wideband Double Stub Phase Shifter” IET Microwaves, Antennas & Propagation, vol. 6 , no. 15, pp. 1704-1709, December 2012.

[21] T. Djerafi, and K.Wu, “77 GHz planar Butler Matrix without Crossover,” IEEE Transactions on Antennas and Propagation, vol. 60, no 10, pp. 4949-4954, October 2012.

[22] B.Youzkatli El Khatib, T. Djerafi, and Ke Wu, “Three-Dimensional Architecture of Substrate Integrated Waveguide Feeder for Fermi Tapered Slot Antenna Array Applications,” IEEE Transactions on Antennas and Propagation, vol. 60, no. 10, pp.4610-4618, October 2012.

[23] T. Djerafi, D. Deslandes, and K. Wu, “Temperature Drift Compensation Technique for Substrate Integrated Waveguide Oscillator,” IEEE Microwave and Wireless Components Letters, vol. 2, no. 9, pp. 489-491, September 2012.

[24] B. Youzkatli El Khatib, T. Djerafi, and Ke Wu, “Substrate Integrated Waveguide Vertical Interconnects for Three-Dimensional Integrated Circuits,” Transactions on Components, Packaging and Manufacturing Technology, vol. 2, no.9, pp.1526-1535, September 2012.

[25] T. Djerafi, D. Deslandes, and K. Wu, “A Temperature Compensation Technique for Substrate Integrated Waveguide Cavities and Filters,” IEEE Transactions on Microwave Theory and Techniques, vol. 60, no. 8, pp.2448-2455, August 2012.

[26] K. Wu, Y. J. Cheng, T. Djerafi, and W. Hong, “Substrate Integrated Millimeter-Wave and Terahertz Antenna Technology,” Proceeding IEEE, vol.100, no. 7, pp. 2219-2232, July 2012.

[27] T. Djerafi, J. Gauthier, K. Wu, “Variable Coupler for Low Side Lobe Level Butler Matrix,” IET Microwaves, Antennas & Propagation, vol. 6, no. 9, pp.1034-1039, June 2012.

[28] T. Djerafi, and K.Wu, “Multi-Layered Substrate Integrated Waveguide Butler Matrix for Millimeter-Wave Systems,” International Journal of RF and Microwave Computer-Aided Engineering, vol. 22, no. 3, pp. 336-344, May 2012.

[29] T. Djerafi, H. Aubert and K. Wu, “Ridge Substrate Integrated Waveguide (RSIW) Dual Band Hybrid Ring Coupler,” IEEE Microwave and Wireless Components Letters, vol. 22, no. 2, pp.70-73, February 2012.

[30] T. Djerafi, and K. Wu, “Corrugated Substrate Integrated Waveguide (SIW) Antipodal Linearly Tapered Slot Antenna Array Fed by Quasi-Triangular Power Divider,” Progress in Electromagnetics Research C, vol. 26, pp.139-151, December 2011.

[31] Y. M. Cheng; P. Chen; W. Hong; T. Djerafi, and K. Wu, ” Substrate-Integrated-Waveguide Beamforming Networks and Multibeam Antenna Arrays for Low-Cost Satellite and Mobile Systems,” IEEE Antennas and Propagation Magazine,vol. 53, no. 6 , pp.18-30, December 2011.

[32] T. Djerafi, N. J. G. Fonseca, and K. Wu, “Design and Implementation of a Planar 4×4 Butler Matrix in SIW Technology for Wide Band High Power Applications,” Progress In Electromagnetics Research B, Vol. 35, pp.29-51, October 2011.

[33] T. Djerafi, N. J. G. Fonseca, and K. Wu, “Broadband Substrate Integrated Waveguide Nolen Matrix Based on Coupler Delay Compensation,” IEEE Transactions on Microwave Theory and Techniques, vol. 59, no. 7, pp. 1740-1745, July 2011.

[34] M. Daigle, T. Djerafi, and K. Wu, “Photoimageable thick film process for millimeter wave rectangular waveguide applications” Progress In Electromagnetics Research, 19 pages, vol. 22, 137-150, June 2011.

[35] T. Djerafi, N. J. G. Fonseca, and K. Wu, “Planar Ku-Band 4×4 Nolen Matrix in SIW Technology,” IEEE Transactions on Microwave Theory and Techniques (special issue), vol. 58, no. 2, pp. 259-266. February 2011.

[36] O. Kramer, T. Djerafi, and K. Wu, “Vertically Multilayer-Stacked Yagi Antenna with Single and dual Polarizations,” IEEE Transactions on Antennas and Propagation, vol.58, no.4, pp.1022- 1030, April 2010.

[37] O. Kramer, T. Djerafi, and K. Wu, “Very Small Footprint 60 GHz Stacked Yagi Antenna Array” IEEE Transaction on Antennas & Propagation, vol. 59, no.9, pp. 3204-3210, September 2010.

[38] T. Djerafi, and K. Wu, “Reply to the Comment on “Super-compact substrate integrated waveguide cruciform directional coupler,” IEEE Microwave and Wireless Components Letters, vol. 18, pp. 374-375, May2008.

[39] T. Djerafi, and K. Wu, “Super-Compact Substrate Integrated Waveguide Cruciform Directional Coupler,” Microwave and Wireless Components Letters, vol. 17, no. 11, pp. 757-759, November2007.

· Conference Proceedings (Reviewed)

[40] T. Djerafi, K. Wu, “Multilayer Integration and Packaging on Substrate Integrated Waveguide for Next Generation Wireless Applications,” European Microwave Conference 2016, London, UK, pp.1-4.

[41] J. Li, T. Djerafi, F. Ren, K. Wu, “Chipless Substrate Integrated Waveguide Tag using Time-Domain Reflectometry Technique for Millimetre-Wave Identification (MMID),” European Microwave Conference 2016, London, UK, pp.1-4.

[42] K. Wu, P. Burasa, T. Djerafi, N. Constantin, “Millimeter-wave identification for futuresensing, tracking, positioning and communicating systems,” Global Symposium on Millimeter Waves (GSMM) & ESA Workshop on Millimetre-Wave Technology and Applications, Espoo, Finlande, pp.1-4, Mai 2016.

[43] F. Fesharaki, T. Djerafi, M. Chaker, K. Wu, “Mode-Selective Transmission Line for DC-to-THz Super-Broadband Operation,” IEEE International Microwave Symposium, San Francisco, pp.1-3, Mai 2016.

[44] F. Fesharaki, T. Djerafi, M. Chaker, K. Wu, “High-Integrity Terabit-per-Second Signal Interconnects with Mode-Selective Transmission Line,” IEEE International Microwave Symposium, San Francisco, ÉtatsUnis Date de la conférence, pp.1-3, Mai 2016.

[45] F. Fesharaki, T. Djerafi, M. Chaker, K. Wu, “Low-Loss and Low-Dispersion Transmission Line over DC-to-THz Spectrum,” SPIE Photonics West, San Francisco, États-Unis, Fevrier 2016.

[46] A. Doghri, T. Djerafi, and K. Wu, “Multi-Dimensional Substrate Integrated Waveguide for High Density Integration,” the 8th Global Symposium on Millimeter-Waves (GSMM2015), Montreal, Canada, pp.1-3.

[47] T. Djerafi, A. Ghiotto, and K. Wu, “Chipless Substrate Integrated Waveguide Tag for Millimeter Wave Identification,” the 8th Global Symposium on Millimeter-Waves (GSMM2015), Montreal, Canada, pp.1-3.

[48] L. Chioukh, T. Djerafi, and Ke Wu, “Improvements of Cardiopulmonary Monitoring Using Harmonic Six Ports Radar System,” the 8th Global Symposium on Millimeter-Waves (GSMM2015), Montreal, Canada, pp.1-3.

[49] A. Doghri, T. Djerafi, A. Ghiotto, and K. Wu, “Corrugated SIW L-folded antipodal parabolic tapered slot antenna,” European Microwave Conference 2013, Nuremberg, Germany, pp.1-4.

[50] J. Attari, T. Djerafi, and K. Wu, “Planar orthogonal mode transducer based on orthogonal lsm10 and TE10 modal fields of co-layered image SINRD (iSINRD) and SIW Guides,” European Microwave Conference 2013, Nuremberg, Germany, pp.1-4.

[51] T. Djerafi, D. Hammou, S. Tatu, and K. Wu, “Bi-layered Substrate Integrated Waveguide Wilkinson Power Divider/Combiner,” IEEE International Microwave Symposium Digest, June 2013, Seattle, Wa, USA, pp.1-3.

[52] A. Doghri, T. Djerafi, A. Ghiotto, and K. Wu, “SIW 90-Degree Twist for Substrate Integrated Circuits and Systems,” IEEE International Microwave Symposium Digest, June 2013, Seattle, Wa, USA pp.1-3.

[53] A. Doghri, T. Djerafi, A. Ghiotto, and K. Wu, “Corrugated SIW L-folded antipodal parabolic tapered slot antenna,” Asia-Pacific Microwave Conference Proceedings (APMC), 2012, Kaohsiung, Taiwan, pp. 893- 895.

[54] T. Djerafi, A. Ghiotto and K. Wu, “Antipodal Fin-Line Waveguide to Substrate Integrated Waveguide Transition,” IEEE International Microwave Symposium Digest, June 2012, Montreal, Qc, Canada, pp.1-3.

[55] A. Doghri, A. Ghiotto, T. Djerafi, and K. Wu, “Compact and Low Cost Substrate Integrated Waveguide Cavity and Bandpass Filter Using Surface Mount Shorting Stubs,” IEEE International Microwave Symposium Digest, June 2012,

Montreal, Qc, Canada, pp.1-3.

[56] A. B. Guntupalli, T. Djerafi, and K. Wu, “Ultra-Compact Millimeter-wave Substrate Integrated Waveguide Crossover Structure Utilizing Simultaneous Electric and Magnetic Coupling,” IEEE International Microwave Symposium Digest, June 2012, Montreal, Qc, Canada, pp.1-3.

[57] A. Doghri, T. Djerafi, A. Ghiotto, and K. Wu, “Broadband Substrate-Integrated-Waveguide Six-Port Applied to the Development of Polarimetric Imaging Radiometer,” European Microwave Conference 2011, Manchester, UK, pp.393-396.

[58] A. Doghri, A. Ghiotto, T. Djerafi, and K. Wu, “Early Demonstration of a Passive Millimeter-Wave Imaging System Using Substrate Integrated Waveguide Technology,” Mediterranean Microwave Symposium (MMS), Sept. 2011, Hammamet, Tunisia, pp. 215-218.

[59] T. Djerafi, N. J. G. Fonseca, and K. Wu, “Design and Implementation of a Planar 4×4 Butler Matrix in SIW Technology for Wideband Applications,” European Microwave Conference 2010, Paris, France, pp.910-914.

[60] H. Boutayeb, T. Djerafi, and K. Wu, “Gain Enhancement of a Circularly Polarized Microstrip Patch Antenna Surrounded by A Circular Mushroom-Like Substrate,” Proceedings of the 3rd European Wireless Technology Conference Paris,, France, pp.257- 260, 2010 Waveguide (SIW) Coupler for Millimeter-Wave Systems,” IEEE International Microwave Symposium Digest 2010, Anaheim, LA, USA, pp.716-719.

[61] T. Djerafi, and K. Wu, “A 60 GHz Substrate Integrated Waveguide Crossover structure,” European Microwave Conference 2009, Rome, Italy, pp.1014-1017.

[62] T. Djerafi, M. Daigle, H. Boutayeb, and K. Wu, “SIW Six Port Circuits for Mm-Wave Radar and Radio Systems,” European Microwave Conference 2009, Rome, Italy pp.77-80.

[63] T. Djerafi, N. J. G. Fonseca, and K. Wu, “Architecture and Implementation of Planar 4 x 4 Ku-Band Nolen Matrix Using SIW Technology,” Asia-Pacific Microwave Conference Proceedings 2008, Hong Kong/Macau, pp.1-4.

[64] T. Djerafi, K. Wu, and H. Boutayeb, “New Beam Switching Antennas Using Reconfigurable Circular Mushroom-Like Structure,” Asia-Pacific Microwave Conference Proceedings 2008, Hong Kong/Macau, pp.1-4.

· Invited papers

[65] K. Wu, P. Burasa, T. Djerafi and N. Constantin, “Millimeter-wave identification for future sensing, tracking, positioning and communicating systems,” 2016 Global Symposium on Millimeter Waves (GSMM) & ESA Workshop on Millimetre-Wave Technology and Applications, Espoo, 2016, pp. 1-4.

[66] A. Ghiotto, A.Doghri, F. Parment, T. Djerafi, T-P. Vuong, and K. Wu, “Three-Dimensional SIW and High-Performance Air-Filled SIW for Millimeter-Wave Substrate Integrated Circuits and Systems,” the 8th Global Symposium on Millimeter-Waves (GSMM2015). Montreal, Canada, pp.1-3

[67] K.Wu, A. Doghri, T. Djerafi, “Three-Dimensional Integrated Waveguide Technique for Millimeter-Wave Imaging and Sensing Systems,” 7th Global Symposium on Millimeter-Waves 2014 (GSMM 2014)

[68] T. Djerafi, O. Kramer, N. Ghassemi, A. B. Guntupalli, B. Youzkatli-El-Khatib, and K. Wu, “Innovative Multilayered Millimetre-Wave Antennas for Multi-Dimensional Scanning and Very Small Footprint Applications,” EUCAP 2012, Prague, pp.1-5.

[69] K. Wu, Y. J. Cheng, T. Djerafi, X. P. Chen, N. Fonseca, and W. Hong , “ Fully Integrated Design Platforms Of Beamforming Networks And Multibeam Antenna Arrays For Low-Cost Satellite and Space Systems,” 33rd ESA Antenna Workshop, 2011, Noordwijk, Netherlands, pp.1-8.

[70] K. Wu, Y. J. Cheng, T. Djerafi, X. P. Chen, N. Fonseca, and W. Hong, “Millimeter-Wave Integrated Waveguide Antenna Arrays and Beamforming Networks for Low-Cost Satellite and Mobile Systems,”EUCAP2010, Barcelona, pp.1-5.

· Intellectual property

[71] T. Djerafi, J. Gauthier, K. Wu “Planar Circuit Test Fixture” United States Patent US2013335110.

[72] K. Wang, H. Jin; K. Wu; T. Djerafi “System and Method for Variable Microwave Phase Shifter” United States Patent App No. 91024703US01.

[73] A. B. Guntupalli, K. Wu; T. Djerafi “Antenna Array Top-Loaded With Integrated Dielectric Resonators in Single Dielectric for Mass Production” United States Patent App No 91024729US01.

[74] T. Djerafi, K. Wu “High aperture gain efficiency broadband antenna element with stable gain” United States Patent App No 91030796US01.

[75] T. Djerafi, K. Wu “Multiport Network for Auto Alignment System” United States Patent App No 91033248US01.

[76] T. Djerafi, K. Wu “Superstrate for Element/Array Gain and impedance Matching Improvement” United States Patent App No 91033258US01.

· Book chapter

[77] T. Djerafi, A. Doghri, K. Wu’. Substrate Integrated Waveguide Tapered Slot Antenna” Ed. Springer, 2015, to be published