Department of Microelectronics
Faculty of Electrical Engineering, Mathematics, and Computer Science

dr. W.H. Syed

Postdoc
Terahertz Sensing (THZ), Department of Microelectronics

PhD thesis (Jun 2015): On the Control of Surface Waves in Integrated Antennas - Analysis and Design Exploiting Artificial Dielectric Layers
Promotor: Andrea Neto, Daniele Cavallo

Themes: XG - Next Generation Sensing and Communication

Biography

Waqas H. Syed received the B.Sc. degree with distinction in telecommunication engineering from the CIIT, Islamabad, Pakistan, in 2007, his M.Sc. degree from RWTH Aachen University, Aachen, Germany, in 2010, and his Ph.D. degree (cum laude) in electromagnetics from Delft University of Technology (TUDelft), Delft, The Netherlands, in 2015.

From 2015 to 2016, he was Post-Doctoral researcher in the Terahertz Sensing Group at TUDelft. He is currently working as an antenna engineer at NXP Semiconductors, Eindhoven, The Netherlands. His research interests include artificial dielectrics and the design of integrated antennas and arrays. Dr. Syed was recipient of the Special Mention for Excellent Presentation at the European Conference on Antennas and Propagation (EuCAP) in 2015. He was also the recipient of the 2016 Else Kooi Award for the Best Young Researcher in the field of applied semiconductor research and microelectronics conducted in the Netherlands.

Publications

  1. Antenna unit and method of producing an antenna unit
    Waqas H. Syed; Ralph M. Van Schelven; G. Carluccio; P. Lok; Antonius J. M. De Graauw; Konstantinos Doris; Daniele Cavallo; Andrea Neto;
    Patent, EP4343971A1, US18469605, Mar. 2024.
    document

  2. Phased array with pattern shaping and scan loss reduction for millimeter waves
    R. M. Van Schelven; W. Syed; G. Carluccio; K. Doris; A. De Graauw; A. Neto; D. Cavallo;
    IEEE Transactions on Antennas and Propagation,
    Volume 71, Issue 1, pp. 159-168, Jan. 2023. DOI: 10.1109/TAP.2022.3217340

  3. Pattern diversity and scan loss reduction for millimeter wave phased array applications
    R. van Schelven; W. Syed; G. Carluccio; K. Doris; A. de Graauw; A. Neto; D. Cavallo;
    In 15th European Conference on Antennas and Propagation (EuCAP),
    Düsseldorf, Germany, Mar. 22-26, 2021 2021. (Convened Paper).

  4. A 30 GHz slot array with artificial dielectrics to enhance radiation characteristics
    R. van Schelven; W. Syed; G. Carluccio; K. Doris; A. de Graauw; A. Neto; D. Cavallo Oct. 19-22, 2021. (Invited Paper);
    In 26th International Symposium on Antennas and Propagation (ISAP),
    Taipei, Taiwan, Oct. 19-22 2021. (Invited Paper).

  5. A 30 GHz slot array with artificial dielectrics to enhance radiation characteristics
    R. van Schelven; W. Syed; G. Carluccio; K. Doris; A. de Graauw; A. Neto; D. Cavallo;
    In 26th International Symposium on Antennas and Propagation (ISAP),
    Taipei, Taiwan, Oct. 19-22 2021. (Invited Paper).

  6. Pattern Diversity and Scan Loss Reduction for Millimeter Wave Phased Array Applications
    R. van Schelven; W. Syed; G. Carluccio; M. Spella; A. de Graauw; A. Neto; D. Cavallo;
    In IEEE Antennas and Propagation Society International Symposium,
    Montréal, Canada, Jul. 5-10 2020.

  7. Connected-slot array with artificial dielectrics: A 6 to 15 GHz dual-pol wide-scan prototype
    D. Cavallo; W. H. Syed; A. Neto;
    IEEE Transactions on Antennas and Propagation,
    Volume 66, Issue 6, pp. 3201-3206, Jun. 2018. DOI: 10.1109/TAP.2018.2811841

  8. 6-15 GHz wide scanning connected array
    D. Cavallo; W. H. Syed; A. Neto;
    In IEEE Antennas and Propagation Society International Symposium,
    Boston, Massachusetts, USA, Jul. 8-13 2018. DOI: 10.1109/APUSNCURSINRSM.2018.8608367

  9. A planar 6-15 GHz connected slot array with very wide scan capability
    D. Cavallo; W.H. Syed; A. Neto;
    In 39th ESA Antenna Workshop on Multibeam and Reconfigurable Antennas for Space Applications,
    Noordwijk, The Netherlands, Oct. 2-5 2018. (invited paper).

  10. Integrated circuit package
    M. Spella; W. H. Syed; D. Cavallo; M. Huang; L. van Gemert;
    Patent, US20180233465A1, 2018.
    document

  11. Equivalent transmission line models for the analysis of edge effects in finite connected and tightly-coupled arrays
    D. Cavallo; W. H. Syed; A. Neto;
    IEEE Transactions on Antennas and Propagation,
    Volume 65, Issue 4, pp. 1788-1796, Apr. 2017. DOI: 10.1109/TAP.2017.2670616

  12. Artificial-dielectric enabled antennas for high-frequency radiation from integrated circuits
    D. Cavallo; W. H. Syed; A. Neto;
    In 11th European Conference on Antennas and Propagation,
    Paris, France, pp. 1626-1628, Mar. 19-24 2017. DOI: 10.23919/EuCAP.2017.7928187

  13. Planar wide-scan wideband arrays based on connected slots and artificial dielectrics
    D. Cavallo; W. H. Syed; A. Neto;
    In 11th European Conference on Antennas and Propagation,
    Paris, France, Mar. 19-24 2017.

  14. A 7 to 15 GHz wide-scan dual-polarized array of connected slots with artificial dielectrics
    D. Cavallo; W. H. Syed; A. Neto;
    In USNC-URSI Radio Science Meeting,
    San Diego, CA, USA, Jul. 9-14 2017.

  15. Wideband, wide-scan planar array of connected slots loaded with artificial dielectric superstrates
    Syed, W.H.; Cavallo,D.; Thippur Shivamurthy, H.; Neto, A.;
    IEEE Trans. Antennas Propag.,
    Volume 64, Issue 2, pp. 543-553, Feb. 2016. DOI: 10.1109/TAP.2015.2507167

  16. Truncation effects in finite wideband connected arrays loaded with artificial dielectrics
    W. H. Syed; D. Cavallo; A. Neto;
    In 10th European Conference on Antennas and Propagation,
    Davos, Switzerland, Apr. 11-15 2016.

  17. A 5:1 connected slot array loaded with artificial dielectric layers
    D. Cavallo; W. H. Syed; A. Neto;
    In IEEE International Symposium on Phased Array Systems and Technology,
    Waltham, MA, USA, Oct. 18-21 2016. (invited paper). DOI: 10.1109/ARRAY.2016.7832629

  18. Comparison of the edge effects in finite connected array of dipoles and slots in relation to the load impedance
    D. Cavallo; W. H. Syed; and A. Neto;
    In IEEE Antennas and Propagation Society International Symposium,
    Puerto Rico, Jun. 26-Jul. 1 2016.

  19. Efficiency and bandwidth enhancement of on-chip antennas by using connected arrays and artificial dielectrics
    D. Cavallo; W. H. Syed; A. Neto;
    In 41st International Conference on Infrared, Millimeter and Terahertz Waves,
    Copenhagen, Denmark, Sep. 25-30 2016. DOI: 10.1109/IRMMW-THz.2016.7758355

  20. Wideband and high-efficiency radiation from chip with artificial dielectric superstrates
    Cavallo, D.; Pascual Laguna, A.; Syed, W. H.;
    In 10th European Conference on Antennas and Propagation,
    Davos, Switzerland, Apr. 11-15 2016. DOI: 10.1109/EuCAP.2016.7481751

  21. Design, fabrication and measurement of 0.3 THz on-chip double-slot antenna enhanced by artificial dielectrics.
    W. H. Syed; G. Fiorentino; D. Cavallo; M. Spirito; M.P. Sarro; A. Neto;
    IEEE Transactions on Terahertz Science and Technology,
    Volume 5, Issue 2, pp. 288-298, Mar. 2015. DOI: 10.1109/TTHZ.2015.2399276

  22. Design, Fabrication, and Measurements of a 0.3 THz On-Chip Double Slot Antenna Enhanced by Artificial Dielectrics
    W. H. Syed; G. Fiorentino; D. Cavallo; M. Spirito; P. M. Sarro; A. Neto;
    IEEE Transactions on Terahertz Science and Technology,
    Volume 5, Issue 2, pp. 288-298, March 2015.

  23. On-chip double slot antenna at 300 GHz enhanced by artificial dielectrics
    W. H. Syed; G. Fiorentino; D. Cavallo; P. M. Sarro; A. Neto;
    In Eur. Conf. Antennas Propag., Lisbon, Portugal,
    April 12-17 2015.

  24. Design of wideband, wide-scan planar arrays by combining connected arrays and artificial dielectrics
    Syed, W.H.; Cavallo, D.; Thippur Shivamurthy, H.; Neto, A.;
    In Eur. Conf. Antennas Propag., Lisbon, Portugal,
    April 12-17 2015.

  25. Closed-form solutions for the analysis of artificial dielectric layers under generic field incidence
    D. Cavallo; W. H. Syed; A. Neto;
    In IEEE Antennas and Propagation Society International Symposium,
    Vancouver, Canada, Jul. 19-25 2015. (invited paper). DOI: 10.1109/APS.2015.7304907

  26. Performance enhancement of 300 GHz on-chip double slot antenna by means of artificial dielectrics
    W. H. Syed; G. Fiorentino; D. Cavallo; P. M. Sarro; A. Neto; I. E. Lager;
    In 45th European Microwave Conference,
    Paris, France, Sep. 6-11 2015.

  27. A planar wideband wide-scan connected array loaded with artificial dielectric layers
    Syed, W.H.; Cavallo, D.; Thippur Shivamurthy, H.; Neto, A.;
    In 36th ESA Antenna Workshop on Antennas and RF Systems for Space Science,
    Noordwijk, Netherlands, Oct. 6-9 2015.

  28. Applications of artificial dielectric layers for the design of planar integrated antennas
    W. H. Syed; D. Cavallo; A. Neto;
    In International Symposium on Antennas and Propagation,
    Hobart, Tasmania, Australia, Nov. 9-12 2015. (invited paper).
    document

  29. On-chip double slot antenna at 300 GHz enhanced by artificial dielectrics
    Syed, W. H.; Fiorentino, G.; Cavallo, D.; Sarro, P. M.; Neto, A.;
    In Eur. Conf. Antennas Propag.,
    2015.

  30. Performance enhancement of 300 GHz on-chip double slot antenna by means of artificial dielectrics
    Syed, W. H.; Fiorentino, G.; Cavallo, D.; Sarro, P. M.; Neto, A.; Lager, I. E.;
    In 45th European Microwave Conference,
    2015.

  31. A planar wideband wide-scan phased array: Connected array loaded with artificial dielectric layers
    Cavallo, D.; Syed, W.H.; Thippur Shivamurthy, H.; Neto, A.;
    In IEEE Antennas and Propagation Society International Symposium,
    Vancouver, Canada, Jul. 19-25 2015. DOI: 10.1109/APS.2015.7305650

  32. Closed-form analysis of artificial dielectric layers-Part II: Extension to multiple layers and arbitrary illumination
    D. Cavallo; W. H. Syed; A. Neto;
    IEEE Transactions on Antennas and Propagation,
    Volume 62, Issue 12, pp. 6265-6273, Dec. 2014. DOI: 10.1109/TAP.2014.2365236

  33. Closed-form analysis of artificial dielectric layers-Part I: Properties of a single layer under plane-wave incidence
    D. Cavallo; W. H. Syed; A. Neto;
    IEEE Transactions on Antennas and Propagation,
    Volume 62, Issue 12, pp. 6256-6264, Dec. 2014. DOI: 10.1109/TAP.2014.2365233

  34. Enhancement of front to back ratio of on chip antenna by artificial dielectrics at 300 GHz
    W. H. Syed; G. Fiorentino; D. Cavallo; M. Spirito; A. Neto; and P. M. Sarro;
    In 39th International Conference on Infrared, Millimeter, and Terahertz Waves,
    Tucson, AZ, USA, September 2014. DOI: 10.1109/IRMMW-THz.2014.6956185

  35. Design of connected array loaded with artificial dielectric at 60 GHz
    W. H. Syed; D. Cavallo; A. Neto; P. van Zeijl;
    In IEEE Antennas and Propagation Society International Symposium,
    Memphis, TN, USA, pp. 931-932, July 2014. DOI: 10.1109/APS.2014.6904794

  36. Front-to-back ratio enhancement of on-chip antenna using artificial dielectrics at 300 GHz
    W. H. Syed; G. Fiorentino; D. Cavallo; M. Spirito; A. Neto; and P. M. Sarro;
    In IEEE Antennas and Propagation Society International Symposium,
    Memphis, TN, USA, pp. 140, July 2014.
    document

  37. Artificial dielectric based connected array of slots at 60 GHz
    W. H. Syed; A. Neto; D. Cavallo; P. van Zeijl;
    In 8th European Conference on Antennas and Propagation,
    The Hague, Netherlands, April 2014.

  38. Closed-form analysis of the decoupling properties of artificial dielectric layers
    D. Cavallo; W. H. Syed; and A. Neto;
    In IEEE Antennas and Propagation Society International Symposium,
    Memphis, TN, USA, pp. 231-232, July 2014. DOI: 10.1109/APS.2014.6904447

  39. Closed-form expressions for the analysis of finite-height artificial dielectric layers
    D. Cavallo; W. H. Syed; A. Neto;
    In 8thEuropean Conference on Antennas and Propagation,
    The Hague, Netherlands, April 2014.

  40. Design of wideband and high-efficiency antenna array on chip at 1.1 terahertz
    D. Cavallo; A. Visweswaran; N. Llombart; M. Spirito; W. H. Syed; A. Neto; J. Long;
    In 8th European Conference on Antennas and Propagation,
    The Hague, Netherlands, April 2014. (invited paper).

  41. Front-to-back ratio enhancement of on-chip antenna using artificial dielectrics at 300 GHz
    W. H. Syed; G. Fiorentino; D. Cavallo; M. Spirito; A. Neto; P. M. Sarro;
    In 2014 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium),
    pp. 140-140, July 2014.

  42. Enhancement of front to back ratio of on chip antenna by artificial dielectrics at 300 GHz
    W. H. Syed; G. Fiorentino; D. Cavallo; M. Spirito; A. Neto; P. M. Sarro;
    In 2014 39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz),
    pp. 1-2, Sept 2014.

  43. Front-to-back ratio enhancement of on-chip antenna using artificial dielectrics at 300 GHz
    Syed, WH; Fiorentino, G; Cavallo, D; Spirito, M; Neto, A; Sarro, PM;
    In Proceedings - 2014 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium),
    pp. 140, 2014.

  44. Artificial Dielectric Layer Based on PECVD Silicon Carbide for Terahertz Sensing Applications
    G. Fiorentino; W. Syed; A. Adam; A. Neto; P.M. Sarro;
    In Procedia Engineering 87: EUROSENSORS 2014, the 28th European Conference on Solid-State Transducers,
    pp. 1497-1500, 2014.

  45. Enhancement of Front to Back Ratio of on Chip Antenna by Artificial Dielectrics at 300 GHz
    Syed, WH; Fiorentino, G; Cavallo, D; Spirito, M; Neto, A; Sarro, PM;
    In 39th International Conference on Infrared, Millimeter, and Terahertz Waves,
    2014.

  46. Front-to-Back Ratio Enhancement of Planar Printed Antennas by Means of Artificial Dielectric Layers
    W. H. Syed; A. Neto;
    IEEE Transactions on Antennas and Propagation,
    Volume 61, Issue 11, pp. 5408-5416, Nov. 2013.
    document

  47. An analytical approach to describe plane-wave propagation in finite artificial dielectric layers
    W. H. Syed; D. Cavallo; A. Neto;
    In IEEE Antennas and Propagation Society International Symposium,
    Orlando, FL, USA, pp. 1564-1565, July 2013.
    document

  48. Artificial dielectric layers for efficient feeding of lens antennas: Rigorous analysis and experimental validation
    W. H. Syed; D. Cavallo; A. Neto;
    In 7th European Conference on Antennas and Propagation,
    April 2013.

  49. Artificial Dielectric Layers as Surface-Wave-Less Antenna Substrate
    W. H. Syed; D. Cavallo; A. Neto;
    In presented at the Annual Netherlands Antenna Research Framework,
    May 2013.

  50. A CMOS-compatible metamaterial to enhance the front to back radiation ratio in terahertz antenna for sensing application
    G. Fiorentino; W. Syed; F. Santagata; M. Spirito; G. Pandraud; A. Neto; P. M. Sarro; A. J. L. Adam;
    In 2013 IEEE SENSORS,
    pp. 1-4, Nov 2013.

  51. A CMOS-compatible metamaterial to enhance the front to back radiation ratio in terahertz antenna for sensing application
    Fiorentino, G; Syed, W; Santagata, F; Spirito, M; Pandraud, G; Neto, A; Sarro, PM; Adam, AJL;
    In Sensors, 2013 IEEE,
    IEEE, pp. 1--4, 2013.

  52. Artificial dielectric layer as sub-sm wave antenna super-strates
    G. Fiorentino; W. H. Syed; A. Neto; P.M. Sarro;
    In IEEE Antennas and Propagation Society International Symposium,
    July 2012.

  53. Artificial dielectric layers for the performance enhancement of slot antennas on a dielectric lens
    W. H. Syed; A. Neto;
    In IEEE Antennas and Propagation Society International Symposium,
    July 2012.

  54. Near field excitation of artificial dielectric layers: Field Distributions and Electrical Properties
    W. H. Syed; A. Neto;
    In 6th European Conference on Antennas and Propagation,
    March~26-30 2012.

BibTeX support

Last updated: 18 Feb 2021

Waqas Syed

Alumnus