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For people, place, prosperity and planet, we deliver impact with measurement science

Xiaobang Shang

Xiaobang Shang

Principal scientist

Xiaobang Shang attained a BEng degree (First Class) in Electronic and Communication Engineering in 2008 and a PhD degree in Microwave Engineering in 2011 from the University of Birmingham. After graduating he continued working at the University of Birmingham as a Research Fellow.

Xiaobang joined NPL in 2017 as a Senior Scientist and was promoted to Principal Scientist in 2023. His work focuses on microwave, millimetre‑wave and terahertz measurements supporting next‑generation telecommunications and emerging quantum technologies. He coordinated the EU EMPIR TEMMT project (2019–2022) and currently leads the EU EPM 6GOnWafer project (2026–2029), advancing on‑wafer metrology and semiconductor material characterisation.

Dr Shang is a Senior Member of IEEE and has authored or co‑authored more than 130 publications. He has received several prestigious international awards, including the IEEE MTT‑S Outstanding Young Engineer Award (2025), the EuMA Roberto Sorrentino Prize (2022), the IEEE MTT‑S Tatsuo Itoh Award (2017) and the ARFTG Roger Pollard Microwave Measurement Student Fellowship (2009).

Professional Appointments:

  • Visiting Professor: Queen Mary University of London (2026–present)
  • Executive Committee Member: ARFTG (2026–present)
  • Secretary: IEEE MTT‑S Standards Committee (2025–present)
  • Member: IEEE MTT‑S TC‑21 “Terahertz Technology and Applications” (2022–present)
  • Member: IEEE MTT‑S TC‑3 “Microwave Measurements” (2021–present)
  • Member: IEEE P2822 Standards Working Group: Recommended Practice for Microwave, Millimetre‑wave and THz On‑Wafer Calibrations, De‑Embedding and Measurement (2021–present)
  • Member: BSI Standards Committee “EPL/47 Semiconductors” (2024–present)
  • Visiting Professor: University of Manchester (2022–2025)
  • Representative: EuMA General Assembly (Group 4 countries: UK, Ireland, Gibraltar, Malta) (2022–2024)

Conferences:

  • General TPC Chair: European Microwave Week (EuMW) 2026, 4–9 October 2026, ExCeL London
  • General Chair: 109th ARFTG
  • TPC Chair: 106th ARFTG; 107th ARFTG
  • TPC Member: IMS 2026; 105th ARFTG; EuMW 2025, 2024, 2022, 2021
  • Invited Speaker: INMMiC 2025
  • Operations Director: EuMW 2021
  • Chair: IET Colloquium on Millimetre‑wave and Terahertz Engineering and Technology (2019, 2021, 2022)

Editorial Roles:

  • Associate Editor: International Journal of Microwave and Wireless Technologies (2025–present)
  • Associate Editor: IEEE Microwave and Wireless Technology Letters (2020–2024)
  • Guest Editor: Special Issue “Measurement and Characterization of THz Systems and Their Key Radio Components” — IEEE Transactions on Terahertz Science and Technology (2025)
  • Guest Editor: Special Issue “Measurement and Metrology Theory and Technologies for Future 6G Wireless” — IEEE Antennas and Wireless Propagation Letters (2025)

Areas of interest

  • On-wafer measurements (at room temperature and cryogenic temperatures)
  • Material characterisations
  • Millimetre-wave and terahertz circuits

Selected publications – see Dr Shang’s Google Scholar page for the full list

  1. F. Mubarak, G. N. Phung, U. Arz, I. Roch-Jeune, K. Haddadi, G. Ducournau, T. Flisgen, R. Doerner, D. Allal, D. Jayasankar, J. Stake, R. Schmidt, G. Fisher, N. Ridler, X. Shang, “An Interlaboratory Comparison of On-Wafer S-Parameter Measurements up to 1.1 THz”, IEEE Transactions on Terahertz Science and Technology, doi: 10.1109/TTHZ.2025.3537461
  2. X. Shang, L. Ausden, M. Naftaly, N. Ridler, D. Feng, M. Navarro-Cia, J. Hales, R. Premerlani, “Dielectric Measurements of Conventional and 3-D Printed Substrate Materials from 50 GHz to 1.5 THz using Free-space and TDS Methods,” 2025 International Microwave Symposium (IMS), San Francisco, CA, US, 15-20 June 2025.
  3. R. Mahmud, T. Skaik, X. Shang, and Y. Wang, “Highly Selective Circularly Polarized Filtering Slot Antenna Based on Stub-Loaded Resonators,” IEEE Antennas and Wireless Propagation Letters, doi: 10.1109/LAWP.2025.3543757.
  4. X. Shang, M. Naftaly, J. Skinner, et al., “Interlaboratory Comparison of Dielectric Measurements from Microwave to Terahertz Frequencies Using VNA-based and Optical-based Methods,” IEEE Transactions on Microwave Theory and Techniques, vol. 72, no. 11, pp. 6473-6484, Nov. 2024, doi: 10.1109/TMTT.2024.3399879.
  5. M. Shu, X. Shang, N. Ridler, A. Calleau, A. I. Dimitriadis and A. Zhang, "Improvements to Millimeter-wave Dielectric Measurement Using Material Characterization Kit (MCK),” IEEE Transactions on Instrumentation and Measurement, vol. 73, pp. 1-8, 2024, Art no. 6001108. DOI: 10.1109/TIM.2023.3332341.
  6. X. Shang, N. Ridler, U. Arz, et al., "Interlaboratory Investigation of On-wafer S-parameter Measurements from 110 GHz to 1.1 THz," 2023 53rd European Microwave Conference (EuMC), Berlin, Germany, 2023, pp. 624-627. DOI: 10.23919/EuMC58039.2023.10290550.
  7. D. Stokes, Y. Liu, X. Shang, N. Ridler, “Millimeter-wave and Terahertz Power Meter Characterization at W-band Frequencies,” Journal of Infrared, Millimeter, and Terahertz Waves, vol. 44, pp. 134-150, 2023. DOI: 10.1007/s10762-022-00898-8.
  8. Y. Zhang, J. Xu, X. Shang, “3-D Printed Filtering Crossover using Ellipsoidal Cavities,” IEEE Microwave and Wireless Technology Letters, vol. 33, no. 2, pp. 153-156, February 2023. DOI: 10.1109/LMWC.2022.3214759.
  9. Y. Zhang, X. Shang, F. Zhang and J. Xu, "A 3-D Printed Ku-Band Waveguide Filter Based on Novel Rotary Coupling Structure," IEEE Microwave and Wireless Technology Letters, vol. 33, no. 1, pp. 35-38, Jan. 2023. DOI: 10.1109/LMWC.2022.3194367.
  10. Y. Yu, Y. Wang, T. Skaik, T. Starke, X. Shang, M. J. Lancaster, P. Hunyor, P. Huggard, H. Wang, Q. S. Cheng, “D-band Waveguide Diplexer Fabricated Using Micro Laser Sintering,” IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 12, no. 9, pp. 1446-1457, Sept. 2022. DOI: 10.1109/TCPMT.2022.3204887.
  11. Y. Gao, X. Shang, L. Li, C. Guo, Y. Wang, “Integrated Filter Amplifiers”, IEEE Microwave Magazine, vol. 23, no. 6, pp. 57-75, June 2022. DOI: 10.1109/MMM.2022.3155034.
  12. D. Ma, X. Shang, N. Ridler, W. Wu, “Assessing the Impact of Data Filtering Techniques on Material Characterization at Millimeter-Wave Frequencies,” IEEE Transactions on Instrumentation and Measurement, vol. 70, pp. 1-4, 2021. DOI: 10.1109/TIM.2021.3067224.
  13. N. Ridler, S. Johny, M. Salter, X. Shang, W. Sun, A. Wilson, “Establishing Waveguide Lines as Primary Standards for Scattering Parameter Measurements at Submillimetre Wavelengths”, Metrologia, vol. 58, no. 1, Art no. 015015, 2021. DOI: 10.1088/1681-7575/abd371.
  14. X. Shang, N. Ridler, J. Ding, M. Geen, “Introductory Guide to Making Planar S-parameter Measurements at Millimetre-wave Wavelengths”, Best Practice Guide, January 2021. https://doi.org/10.47120/npl.9001.
  15. S. Shin, X. Shang, N. Ridler, S. Lucyszyn, “Polymer-based 3-D Printed 140-220 GHz Low-cost Quasi-optical Components and Integrated Subsystem Assembly,” IEEE Access, vol. 9, pp. 28020-28038, 2021. DOI: 10.1109/ACCESS.2021.3057606.
  16. N. Ridler, S. Johny, X. Shang, W. Sun, A. Wilson, “Comparing Standardized and Manufacturers’ Interfaces for Waveguides used at Submillimetre-wave Frequencies,” IEEE Transactions on Terahertz Science and Technology, vol. 10, no. 5, pp. 453-459, Sept. 2020. DOI: 10.1109/TTHZ.2020.3010122.
  17. Y. Wang, X. Shang, N. Ridler, M. Naftaly, A. Dimitriadis, T. Huang, W. Wu, “Material Measurements Using VNA-based Material Characterization Kits Subject to Thru-Reflect-Line Calibration,” IEEE Transactions on Terahertz Science and Technology, vol. 10, no. 5, pp. 466-473, Sept. 2020. DOI: 10.1109/TTHZ.2020.2999631.
  18. Y. Wang, X. Shang, N. M. Ridler, T. Huang and W. Wu, "Characterization of Dielectric Materials at WR-15 Band (50–75 GHz) Using VNA-Based Technique," IEEE Transactions on Instrumentation and Measurement, vol. 69, no. 7, pp. 4930-4939, July 2020. DOI: 10.1109/TIM.2019.2954010.
  19. C. Guo, Y. Dhayalan, X. Shang, M. J. Lancaster, H. Wang, J. Xu, J. Powell, Y. Wang, B. Alderman, and P. G. Huggard, “A 135-150 GHz frequency tripler using SU-8 micromachined WR-5 waveguides,” IEEE Transactions on Microwave Theory and Techniques, vol.68, no.3, pp.1035-1044, March 2020. DOI: 10.1109/TMTT.2019.2955684.
  20. R. Lozar, M. Ohlrogge, R. Weber, N. Ridler, X. Shang, T. Probst, and U. Arz, “A comparative study of on-wafer and waveguide module S-parameter measurements at D-band frequencies,” IEEE Transactions on Microwave Theory and Techniques, vol.67, no.8, pp. 3475-3484, August 2019. DOI: 10.1109/TMTT.2019.2919538.
  21. 19 co-authors (including X. Shang), “Best Practice Guide for Planar S-Parameter Measurements using Vector Network Analysers”, Best Practice Guide, 2019, http://dx.doi.org/10.7795/530.20190424B.
  22. H. Yang, Y. Dhayalan, X. Shang, M. J. Lancaster, B. Liu, H. Wang, M. Henry, P. G. Huggard, “WR-3 waveguide bandpass filters fabricated using high precision CNC machining and SU-8 photoresist technology,” IEEE Transactions on Terahertz Science and Technology, vol.8, no.1, pp.100-107, January 2018. DOI: 10.1109/TTHZ.2017.2775441.
  23. C. Guo, X. Shang, M. J. Lancaster, J. Xu, J. Powell, H. Wang, B. Alderman, and P. G. Huggard, “A 135-150 GHz frequency tripler with waveguide filter matching,” IEEE Transactions on Microwave Theory and Techniques, vol.66, no.10, pp.4608-4616, October 2018. DOI: 10.1109/TMTT.2018.2855172.
  24. C. Guo, X. Shang, M. J. Lancaster, J. Xu, J. Powell, H. Wang, K. Parow-Souchon, M. Henry, C. Vegas, B. Alderman, and Peter G. Huggard, “A 290-310 GHz single sideband mixer with integrated waveguide filters,” IEEE Transactions on Terahertz Science and Technology, vol.8, no.4, pp.446-454, July 2018. DOI: 10.1109/TTHZ.2018.2841771.
  25. X. Shang, P. Penchev, C. Guo, M. J. Lancaster, S. Dimov, M. Favre, M. Billod, E.Rijk, “W-band waveguide filters fabricated by laser micromachining and 3-D printing,” IEEE Transactions on Microwave Theory and Techniques, vol.64, no.8, pp.2572-2580, 2016. DOI: 10.1109/TMTT.2016.2574839.
  26. X. Shang, Y. Tian, M. J. Lancaster, “A SU8 micromachined WR-1.5 band waveguide filter,” IEEE Microwave and Wireless Components Letters, vol.23, no.6, pp.300-302, 2013. DOI: 10.1109/LMWC.2013.2260733. 
  27. X. Shang, Y. Wang, W. Xia, M. J. Lancaster, "Novel multiplexer topologies based on all-resonator structures," IEEE Transactions on Microwave Theory and Techniques, vol.61, no.11, pp.3838-3845, 2013. DOI: 10.1109/TMTT.2013.2284496.
  28. X. Shang, M. Ke, Y. Wang, M. J. Lancaster, “WR-3 band waveguides and filters fabricated using SU8 photoresist micromachining technology,” IEEE Transactions on Terahertz Science and Technology, vol.2, no.6, pp.629-637, 2012. DOI: 10.1109/TTHZ.2012.2220136.