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Dr. WU Gengbo (吳耿波博士)

BEng(UESTC), MEng(UESTC), PhD(CityU), MIEEE

Assistant Professor

Contact Information

Office: G6418 YEUNG
Phone: 3442 7802
Email: bogwu2@cityu.edu.hk

Research Interests

  • Millimeter-wave/terahertz antennas
  • Reconfigurable intelligent surfaces
  • Spatiotemporal modulation technology
  • Applied electromagnetics
Dr. Gengbo Wu received his B.Eng. and M.Sc. degrees from the University of Electronic Science and Technology of China, Chengdu, China, in 2015 and 2018, respectively, and the Ph.D. degree from the City University of Hong Kong (CityU), Hong Kong, in 2021.

From 2021 to 2023, he was a Postdoctoral Research Fellow with the State Key Laboratory of Terahertz and Millimeter Waves (SKLTMW), CityU. He is currently an Assistant Professor with the Department of Electrical Engineering, CityU, Hong Kong. He is also a member of the SKLTMW at CityU. He has published more than 40 peer-reviewed papers in prestigious journals, including Nature Electronics, Nature Communications, Science Advances, Proceedings of the IEEE, and IEEE Transactions series. His research interests include millimeter-wave/THz antennas, reconfigurable intelligent surfaces, spatiotemporal modulation technology, integrated sensing and communications.


Awards and Achievements

  • 2023 “Gold Medal” 48th International Exhibition of Inventions Geneva.
  • 2022 “IEEE Antennas and Propagation Society Fellowship ” IEEE AP-S.
  • 2020 “Honorable Mention Award” IEEE AP-S Student Paper Competition .
  • 2019 “Best Student Presenter Award” EE Student Research Symposium, CityU.
  • 2024 “2024 Gold Medal with Congratulations of the Jury ” the 49th International Exhibition of Invention Geneva.


Research Grants

  • Advanced and Green Beamforming Metasurface Antennas for 6G, RGC, ECS, 2025 - 2028, Gengbo Wu (PI).
  • Research on Multi-harmonic Real time Imaging Technology Based on Spatiotemporal Modulated Metasurface Antenna, NSFC, 2025 - 2027, Gengbo Wu (PI).
  • Research on Millimeter-Wave Ultra-Low-Profile Two-Dimensional Beam Scanning Transmitarray Antenna Technology, Shenzhen Natural Science Foundation Program, 2023 - 2026, Gengbo Wu (PI).


Patents

  • Chi Hou Chan, Ka Fai Chan, Gengbo Wu, 3-D focus-steering lens antenna, US Patent No. 11909115, 20 Feb 2024.
  • Gengbo Wu, Junyan Dai, and Chi Hou Chan, Sideband-free space-time-coding metasurface antennas, US Patent No. 11909112, 20 Feb 2024.
  • Gengbo Wu, Shuyan Zhu, Stella W. Pang, and Chi Hou Chan, Guided-Wave-Driven Metasurface Antennas, US Patent No. 11,782,212 B1, 10 Oct 2023.
  • Chi Hou Chan, Gengbo Wu, and Ka Fai Chan, Leaky-wave antenna, US Patent No. 11611149B2 , 21 Mar 2023.
  • Qu. S. W., Wu. G. B., Feng P. Y., Yang S. W., Chen Y. K., A low-profile reflectarray-fed lens antenna, Chinese Patent No. ZL 2016 1 1006516.2, Apr 2019.


Publications Show All Publications Show Prominent Publications


Journal

  • Wu, G. B. , Chen, J. , Yang, C. F. , Chan, K. F. , Chen, M. K. , Tsai, D. P. & Chan, C. H. (2024). 3-D-printed terahertz metalenses for next-generation communication and imaging applications. Proceedings of the IEEE. doi:10.1109/JPROC.2024.3395891
  • Wu, G. B. , Dai, J. Y. , Shum, K. M. , Chan, K. F. , Cheng, Q. , Cui, T. J. & Chan, C. H. (2024). A synthetic moving-envelope metasurface antenna for independent control of arbitrary harmonic orders. Nature Communications. 15. doi:10.1038/s41467-024-51587-0
  • Zhang, J. C. , Wu, G. B. , Chen, M. K. , Liu, X. Y. , Chan, K. F. , Tsai, D. P. & Chan, C. H. (2023). A 6G meta-device for 3D varifocal. Science Advances. vol. 9, no. 4. doi:10.1126/sciadv.adf8478
  • Wu, G. B. , Dai, J. Y. , Shum, K. M. , Chan, K. F. , Cheng, Q. , Cui, T. J. & Chan, C. H. (2023). A universal metasurface antenna to manipulate all fundamental characteristics of electromagnetic waves. Nature Communications. 14. doi:10.1038/s41467-023-40717-9
  • Bundel, P. , Wu, G. B. , Chan, B. J. & Chan, C. H. (2023). A wideband circular polarizer for photoconductive antenna. Optics Letters.
  • Dai, X. , Wu, G. B. & Luk, K. M. (2023). A wideband circularly-polarized transmitarray antenna for millimeter-wave applications. IEEE Trans. Antennas Propag. vol. 71, no. 2.
  • Zhou, G. Z. , Chen, B. J. , Wu, G. B. , Qu, S. W. & Chan, C. H. (2023). All-plasmonic optical leaky-wave antenna with low side-lobe level. Photonics Research.
  • Zheng, D. Z. , Wu, G. B. , Wang, D. S. , Chan, K. F. , Wu, K. & Chan, C. H. (2023). Planar leaky-wave antenna featuring wideband fixed-beam radiation and tailorable directional angle for millimeter-wave applications. IEEE Trans. Antennas Propag. vol. 71, no. 4.
  • Yang, C. F. , Wu, G. B. , Chen, B. J. , Chan, K. F. & Chan, C. H. (2023). Terahertz Bessel beam scanning enabled by dispersion-engineered metasurface. IEEE Trans. Microw. Theory Techn. .
  • Wu, G. B. , Dai, J. Y. , Cheng, Q. , Cui, T. J. & Chan, C. H. (Nov 2022). Sideband-free space-time-coding metasurface antennas. Nature Electronics. 11. doi:10.1038/s41928-022-00857-0
  • Wu, G. B. , Zeng, Y. S. , Chan, K. F. , Qu, S. W. , Shaw, J. & Chan, C. H. (2022). 3-D printed 3-D focus-scanning lens for terahertz applications. IEEE Trans. Antennas Propag. vol. 70, no. 11.
  • Dai, X. , Wu, G. B. & Luk, K. M. (2022). A wideband low-profile reconfigurable transmitarray using magnetoelectric dipole elements. IEEE Trans. Antennas Propag. vol. 70, no. 9.
  • Zhu, S. Y. , Wu, G. B. , Pang, S. W. & Chan, C. H. (2022). Compact terahertz dielectric folded metasurface. Adv. Opt. Mater. vol. 10, no. 3.
  • Wu, G. B. , Chan, K. F. , Shum, K. M. & Chan, C. H. (2022). Millimeter-wave and terahertz OAM discrete-lens antennas for 5G and beyond. IEEE Commun. Mag. vol. 60, no. 1.
  • Chen, S. L. , Wu, G. B. , Wong, H. , Chen, B. J. , Chan, C. H. & Guo, Y. J. (2022). Millimeter-wave slot-based cavity antennas with flexibly-chosen linear polarization. IEEE Trans. Antennas Propag. vol. 70, no. 8.
  • Wu, G. B. , Zhu, S. Y. , Pang, S. W. & Chan, C. H. (2022). Superheterodyne-inspired waveguide-integrated metasurface for flexible free-space light manipulation. Nanophotonics. vol. 11, no. 20. doi:10.1515/nanoph-2022-0352
  • Hu, H. T. , Wu, G. B. , Chan, K. F. & Chan, C. H. (2022). V-band dual-polarized filtering transmitarray antenna enabled by a planar filtering illumination source. IEEE Trans. Antennas Propag. vol. 70, no. 10.
  • Wu, G. B. , Zhang, Q. L. , Chan, K. F. , Chen, B. J. & Chan, K. F. (Jul 2021). Amplitude-modulated leaky-wave antennas. IEEE Trans. Antennas Propag. vol. 69, no. 7.
  • Wu, G. B. , Chan, K. F. & Chan, C. H. (2021). 3-D printed terahertz lens to generate higher-order Bessel beams carrying OAM. IEEE Trans. Antennas Propag. vol. 69, no. 6.
  • (2021). Demonstration of a terahertz multi-spectral 3× 3 Mueller matrix polarimetry system for 2D and 3D imaging. Opt. Exp. vol. 29, no. 10.
  • Wu, G. B. , Chan, K. F. , Shum, K. M. & Chan, C. H. (2021). Millimeter-wave holographic flat lens antenna for orbital angular momentum (OAM) multiplexing. IEEE Trans. Antennas Propag. vol. 69, no. 8.
  • Huang, S. X. , Wu, G. B. , Chen, B. J. , Chan, K. F. , Xia, M. Y. , Fromenteze, T. , Decroze, C. & Chan, C. H. (2021). Terahertz multi-spectral Mueller matrix polarimetry on leaf using only orthogonal-polarization measurements. IEEE Trans. THz Sci. Technol. vol. 11, no. 06.
  • Wu, G. B. , Chan, K. F. , Qu, S. W. & Chan, C. H. (2020). 2-D beam-scanning Bessel launcher for terahertz applications. IEEE Trans. Antennas Propag. vol. 68, no. 8.
  • Wu, G. B. , Zeng, Y. S. , Chan, K. F. , Chen, B. J. , Qu, S. W. & Chan, C. H. (2020). High-gain filtering reflectarray antenna for millimeter-wave applications. IEEE Trans. Antennas Propag. vol. 68, no. 2.
  • Wu, G. B. , Qu, S. W. & Chan, C. H. (2020). Low-cost 1-D beam-steering reflectarray with ±70° scan coverage. IEEE Trans. Antennas Propag. vol. 68, no. 6.
  • Wu, G. B. , Chan, K. F. , Qu, S. W. , Tong, K. F. & Chan, C. H. (2020). Orbital angular momentum (OAM) mode-reconfigurable discrete dielectric lens operating at 300 GHz. IEEE Trans. THz Sci. Technol. vol. 10, no. 5.
  • Huang, S. X. , Zeng, Y. S. , Wu, G. B. , Chan, K. F. , Chen, B. J. , Xia, M. Y. , Qu, S. W. & Chan, C. H. (2020). Terahertz Mueller matrix polarimetry and polar decomposition. IEEE Trans. THz Sci. Technol. vol. 10, no. 1.
  • Wu, G. B. , Zeng, Y. S. , Chan, K. F. , Qu, S. W. & Chan, C. H. (2019). 3-D printed circularly polarized modified Fresnel lens operating at terahertz frequencies. IEEE Trans. Antennas Propag. vol. 67, no. 7.
  • Wu, G. B. , Zeng, Y. S. , Chan, K. F. , Qu, S. W. & Chan, C. H. (2019). High-gain circularly polarized lens antenna for terahertz applications. IEEE Antennas Wireless Propag. Lett. vol. 18, no. 5.
  • Wu, G. B. , Qu, S. W. & Yang, S. W. (2019). Low-profile transmitarray antenna with Cassegrain reflectarray feed. IEEE Trans. Antennas Propag. vol. 67, no. 5.
  • Wu, G. B. , Qu, S. W. , Ma, C. , Yang, S. W. & Chan, C. H. (2018). Reflectarray antenna design with arbitrary incident and reflection beam angle. IEEE Trans. Antennas Propag. vol. 66, no. 11.
  • Wu, G. B. , Qu, S. W. & Yang, S. W. (2018). Wide-angle beam-scanning reflectarray with mechanical steering. IEEE Trans. Antennas Propag. vol. 66, no. 1.
  • Wu, G. B. , Qu, S. W. , Yang, S. W. & Chan, C. H. (2016). Broadband, single-layer dual circularly polarized reflectarrays with linearly polarized feed. IEEE Trans. Antennas Propag. vol. 64, no. 10.

Conference Paper

  • Wu, G. B. , Dai, J. Y. & Chan, C. H. (2023). Space-time modulated metasurface antennas for near-field focusing applications. International Conference on Microwave and Millimeter Wave Technology (ICMMT). Qingdao, China.
  • Wu, G. B. , Dai, J. Y. & Chan, C. H. (2022). Four-dimensional (4-D) leaky-wave antenna for frequency translation. sia-Pacific Microwave Conference (APMC). Yokohama, Japan.
  • Wu, G. B. , Dai, J .Y. & Chan, C. H. (2022). Time-modulated leaky-wave antennas. IEEE International Symposium on Antennas and Propagation (AP-S). Denver, USA.
  • Wu, G. B. , Chan, K. F. & Chan, C. H. (2020). 3-D printed terahertz lens for generation of non-diffractive Bessel beam carrying OAM. 14th European Conference on Antennas and Propagation (EuCAP). Copenhagen, Denmark.
  • Wu, G. B. & Chan, C. H. (2020). 3-D printed terahertz lens with 2-D near-field focus-scanning capability. IEEE International Symposium on Antennas and Propagation (AP-S). Québec, Canada.
  • Wu, G. B. , Chan, K. F. , Shum, K. M. & Chan, C. H. (2020). Transmitarray antenna for generating multiple OAM modes. Asia-Pacific Microwave Conference (APMC 2020). Hong Kong.
  • Wu, G. B. , Zeng, Y. S. , Chan, K. F. , Qu, S. W. & Chan, C. H. (2019). 3-D printed circularly-polarized lens antenna operating at terahertz frequencies. 2019 URSI International Symposium on Electromagnetic Theory (EMTS). San Diego, CA, USA.
  • Wu, G. B. , Chan, K. F. , Mok, W. C. & Chan, C. H. (2019). 3-D printed terahertz lens for Bessel beam generation. Asia-Pacific Microwave Conference (APMC). Singapore.
  • Wu, G. B. , Zeng, Y. S. , Chan, K. F. , Qu, S. W. & Chan, C. H. (2019). 3-D printed terahertz lens with circularly polarized focused near field. 13th European Conference on Antennas and Propagation (EuCAP). Krakow, Poland.
  • Wu, G. B. & Chan, C. H. (2019). Millimeter-wave filtering reflectarray for high-gain antenna applications. IEEE International Symposium on Antennas and Propagation (AP-S). Atlanta, Georgia, USA.
  • Wu, G. B. , Qu, S. W. , Yang, S. W. & Ma, C. (2017). Design of Cassegrain reflectarray antenna with compact ring focus feed. 11th European Conference on Antennas and Propagation (EuCAP). Pairs, France.
  • Wu, G. B. , Qu, S. W. & Chan, C. H. (2017). Wide-angle beam scanning reflectarray antenna design using phase matching method. 10th Global Symposium on Millimeter-Waves (GSMM). Hong Kong.
  • Wu, G. B. , Qu, S. W. & Chan, C. H. (2015). Element design for dual circularly polarized reflectarray with dual linearly polarized feed. Proc. Int. Symp. Antennas Propag. (ISAP). Tasmania, Australia.

Book Chapter

  • Wu, G. B. , Cheung, K. W. , Chan, K. F. & Chan, C. H. (2022). Terahertz lens antenna. Antenna and Array Technologies for Future Wireless Ecosystems. John Wiley & Sons.


External Services


Professional Activity

  • 2023 - 2024, Lead Guest Editor, Special Issue in IEEE Open Journal of Antennas and Propagation.
  • 2023 - Now, Lead Guest Editor, Special Issue in IEEE Antennas and Wireless Propagation Letters.
  • 2023, Special Section chair, International Conference on Microwave and Millimeter Wave Technology (ICMMT).
  • 2022, Finance Chair, 23rd IEEE (HK) AP/MTT Postgraduate Conference.
  • 2022, Special section Chair, Asia-Pacific Microwave Conference (APMC).
  • 2022 - Now, Treasurer, IEEE Hong Kong AP/MTT Joint Chapter.


Service in CityU


Administrative Assignment

  • 2023 - Now, EE Student Exchange Programmes, Exchange Coordinator.
  • 2023 - Now, Mircoelectronic Major, Assistant Programme Leader.

Teaching Service

  • 2023 - Now, EE5435, Advanced Topics in Applied Electromagnetics.
  • 2023 - Now, EE3210, Signals and Systems.


Journal Reviewer

  • • Nature Communications • IEEE Transactions on Antennas and Propagation • IEEE Transactions on Microwave Theory and Techniques • IEEE Transactions on Circuits and Systems I • IEEE Transactions on Circuits and Systems II • IEEE Communications Magazine • IEEE Antennas and Wireless Propagation Letters • IEEE Journal of Microwaves • IEEE Open Journal of Antennas and Propagation • IEEE Access • Journal of Lightwave Technology • Scientific Reports • Communications Engineering • Electronic Letters • Journal of Electromagnetic Engineering and Science • The Journal of Engineering • EURASIP Journal on Wireless Communications and Networking • Frontiers of Information Technology & Electronic Engineering • Recent Advances in Electrical and Electronic Engineering • Micromachines • Applied Science • Applied Optics • Electronics • Engergies • Sensors • Advanced Materials Technologies • Remote Sensing


Last update date : 27 Aug 2024