Dr Yi Wang BSc, MSc, PhD, Senior Member of IEEE (2012), Fellow of HEA (2012)

Dr Yi Wang

Department of Electronic, Electrical and Systems Engineering
Associate Professor in RF and Microwave Engineering
Head of Emerging Device Technology (EDT) Research Lab
Academic Lead of Engineering Cleanroom and THz VNA Facility

Contact details

University of Birmingham
B15 2TT

Dr Wang is Head of Emerging Device Technology (EDT) Research Lab, and the Academic Lead of the Engineering Cleanroom and the THz Vector Network Analyser Facility. He is the TPC Chair of 2021 European Microwave Conference.

Dr Wang was trained in physics. He teaches electronics and electromagnetism. His research area is microwave and terahertz passive device technologies, focusing on the use of new manufacture techniques, new materials, and new circuit design methods. 

His research has been mainly funded by UK EPSRC, European Space Agency, industry, and oversea research agency. He is the Associate Editor of IET Microwaves, Antennas & Propagation.


  • PG Cert in Higher Education, 2012
  • PhD in Electronic Engineering, University of Birmingham, 2005
  • MSc in Condensed Matter Physics, China, 2001
  • BSc (1st class with distinction) in Applied Physics (Non-destructive testing), China, 1998


Dr Yi Wang received his BSc and MSc in Physics from the University of Science and Technology Beijing, China, in 1998 and 2001 respectively, and his PhD degree in Electronic and Electrical Engineering from University of Birmingham, UK, in 2005. His career began as a research fellow at University of Birmingham from 2004, working on high-frequency devices for communications and radars using advanced materials (e.g. superconductors, ferroelectric, SU-8), novel structures (e.g. left-handed metamaterials) and micro-fabrication techniques (MEMS and micromachining). In 2011, he became a Senior Lecturer and then Reader at the University of Greenwich. In 2018, he joined Birmingham.

Dr Wang has published over 180 research papers (100+ in referred journals) in high frequency devices from microwave to terahertz frequencies. He has a breadth of knowledge and expertise in microwave circuit design, micro-fabrications, device measurements, and electronic materials. His research has benefited greatly from links with industries. He also collaborates widely with universities and institutions in the UK and aboard. Dr Wang was appointed Visiting Professor of Shanghai Institute of Ceramics (microwave materials and devices), Chinese Academy of Science in 2017.

Dr Wang leads the Emerging Device Technology (EDT) group. The group currently has 4 research fellows, 9 PhD students, and 2 facility managers. It also regularly hosts academic visitors.


  • Electronic Circuits, Devices and Electromagnetics (Year 2)
  • Communication Systems (Year 2)
  • Engineering Materials (Year 1)

Postgraduate supervision

  • Programmable or adaptable microwave devices using liquid metals and liquid dielectrics.
  • 3D printed microwave filters and antennas
  • Sub-THz passive components and front-end systems for radars and communications
  • Mm-wave and sub-THz antennas
  • Multi-functional multi-port microwave devices, the synthesis and co-design

Qualified and highly motivated students are welcome to apply for one of our Postgraduate doctoral research programmes.


Research interests

Microwave, millimetre-wave and terahertz circuits, systems and their fabrication techniques for communications and sensing.

Research grants

  • 2021-25, European Space Agency, High-power filters with novel temperature-compensation techniques and multi-domain topological co-design (PI)
  • 2021-24, UK-EPSRC grant, Programmable Microwave Hardware Based on Liquid Wires (PI)
  • 2020-23, Dept. for Communities & Local Government, Alternative Raw Materials with Low Impact 2 (ARLI-2), (CI)
  • 2019-22, EU H2020-EMPIR 18SIB09, Millimetre-wave and THz power sensors for metrology (PI)
  • 2019-23, UK-EPSRC EP/S013113/1: Towards a 3D printed terahertz circuit technology (PI)
  • 2020-22, Industry, Highly Integrated 5G millimetre-wave front-end antennas (PI)
  • 2020-23, European Space Agency/GSTP, Next generation temperature compensated high power filters based on novel materials (PI)
  • 2017-23, EP/P020615/1, 10 MHz to 1.1 THz Vector Network Analyser (taking over as PI)
  • 2017-18, NSFC research fund 61628104: Low loss terahertz waveguide structures (PI)
  • 2015-17, UK EPSRC grant: Synthesis and new applications of multi-port filtering networks (PI)
  • 2014-16, Industry, Synthesis of microwave multiplexers (PI)

Research areas

(1) Microwave device technology and circuit theory

5G/6G communications requires smaller, better and smarter (adaptable, reconfigurable, multi-role) microwave devices. New-generation satellites demand lighter and flexible payloads. Hospitals and patients benefit greatly from wireless sensors for remote health monitoring, non-invasive diagnostics and imaging. Dr Wang is working on:

  • 3D printed microwave filters and antenna systems for space, and their topological optimisation
  • Synthesis and application of complex multi-port filtering networks (MPFNs)
  • Functionally integrated microwave circuits (e.g. filter-amplifier-antenna, switch-filter)
  • Wearable sensors and radios

(2) Mm-wave antenna systems

We have unique design capability of high-performance (80%+ efficiency) and low-profile (planar) metal-waveguide arrays, best suited for backhauls and Satcom. While we have developed our own expertise in AiP phase array, we are also working on new passive beamforming solutions.

  •  Metal-waveguide antenna arrays
  • Phase arrays based on antenna-in-package (AiP)
  • Passive beamforming

(3) THz devices for communications and sensing

Terahertz (THz) wave is the spectrum between microwave and far-infrared light (relates to 300 GHz to 3 THz). THz wave technology holds great promise for emerging industrial and scientific applications - security screening, remote sensing, non-destructive testing, and communications. Because of immature device technologies, this part of the spectrum hasn’t been extensively utilised. The vision of Dr Wang’s research is to develop new cost-effective manufacture route for high-performance components for THz comms systems, metrology instruments and sensors, enabled by advanced micro/nano fabrication. Dr Wang is working on:

  •  Micromachined passive circuits and antennas (DRIE, laser, micro-injection moulding)
  • Waveguide integration with MMIC and diodes
  • Low loss THz waveguides and resonators
  • Power sensors/detectors
  • Frequency selective surfaces

(4) Manufacture technologies for microwave and THz

EDT group is specialised in applying new manufacture technologies and has collaborated widely with manufacture experts in:

  • 3D printing (also with new or unusual materials)
  • Photolithography (own facility with DRIE, SU8)
  • Soft-lithography (microfluidics)
  • Laser
  • High-precision CNC
  • Injection moulding
  • Antenna-in-package (AiP)

Other activities

  • Member of EPSRC Peer Review College
  • Regular reviewer for IEEE Transactions on MTT, AP, TST, VT, IE / Proceedings of the IEEE / IEEE MWCL / IEEE AWPL / IET Microwaves, Antennas & Propagation / Electronics Letters / Journal of Micromechanics & Microengineering / Physica C / Superconductor Science & Technology / Sensors
  • Regularly serving on technical committees of international conferences: EUCAP, EUMC, LAPC, IEEE MTT-S IMWS-AMP, UCMMT, iWEM, ICMMT, CICMT, IWS, IMFW
  • External PhD examinations: UCL, University of Birmingham, Manchester, Sheffield, Liverpool, Surrey, Kent, Lancaster, and Royal Institute of Technology (KTH), Sweden


Recent publications


Mohammed, AM, Hart, A, Wood, J, Wang, Y & Lancaster, MJ 2021, '3D printed re-entrant cavity resonator for complex permittivity measurement of crude oils', Sensors and Actuators, A: Physical, vol. 317, 112477. https://doi.org/10.1016/j.sna.2020.112477

Shao, Q, Chen, FC, Wang, Y & Chu, QX 2021, 'Design of 4 × 4 and 8 × 8 filtering butler matrices utilizing combined 90° and 180° couplers', IEEE Transactions on Microwave Theory and Techniques, vol. 69, no. 8, pp. 3842-3852. https://doi.org/10.1109/TMTT.2021.3085879

Zhao, H, Lu, Y, You, Y, You, Q, Wang, Y, Yang, W & Huang, J 2021, 'E-band full corporate-feed 32 × 32 slot array antenna with simplified assembly', IEEE Antennas and Wireless Propagation Letters, vol. 20, no. 4, pp. 518-522. https://doi.org/10.1109/LAWP.2021.3055763

Chen, X, Wang, Y, Skaik, T & Zhang, Q 2021, 'E-plane waveguide filtering six-port junction', IEEE Transactions on Microwave Theory and Techniques. https://doi.org/10.1109/TMTT.2021.3120094

You, Y, Lu, Y, Wang, Y, Xu, J, Huang, J & Hong, W 2021, 'Enhanced pencil-beam scanning CTS leaky-wave antenna based on meander delay line', IEEE Antennas and Wireless Propagation Letters, vol. 20, no. 9, pp. 1760-1764. https://doi.org/10.1109/LAWP.2021.3096084

Mao, CX, Zhang, Y, Zhang, XY, Xiao, P, Wang, Y & Gao, S 2021, 'Filtering antennas: design methods and recent developments', IEEE Microwave Magazine, vol. 22, no. 11, pp. 52-63. https://doi.org/10.1109/MMM.2021.3102199

Huang, M, Lu, Y, Zhu, QA, Salek, M, Wang, Y, Huang, J & Liu, T 2021, 'Highly integrated PA-PIFA with a wide frequency tuning range', IEEE Antennas and Wireless Propagation Letters. https://doi.org/10.1109/LAWP.2021.3085937

Le, H, Pradhani, C, Penchev, P, Nasrollahi, V, Karkantonis, T, Wang, Y, Dimov, S & Ramos-de-Campos, J 2022, 'Laser precession machining of cross-shaped terahertz bandpass filters', Optics and Lasers in Engineering, vol. 149, 106790. https://doi.org/10.1016/j.optlaseng.2021.106790

Mahmud, RH, Salih, IH, Awl, HN, Shang, X, Wang, Y, Skaik, T & Lancaster, MJ 2021, 'Micromachined SU-8-based terahertz 8×8 slotted waveguide antenna array', Journal of Infrared, Millimeter, and Terahertz Waves. https://doi.org/10.1007/s10762-021-00830-6

You, Y, Lu, Y, Skaik, T, Wang, Y & Huang, J 2021, 'Millimeter-wave 45º linearly polarized corporate-fed slot array antenna with low profile and reduced complexity', IEEE Transactions on Antennas and Propagation. https://doi.org/10.1109/TAP.2021.3069561

Guo, C, Yu, Y, Li, S, Wen, X, Zhang, A, Wang, Y & Attallah, M 2021, 'Monolithic 3D printed waveguide filters with wide spurious-free stopbands using dimpled spherical resonators', IET Microwaves, Antennas and Propagation, vol. 15, no. 12, pp. 1657-1670. https://doi.org/10.1049/mia2.12178

Yu, Y, Wang, Y, Guo, C, Cheng, QS & Yu, M 2021, 'Resonant manifold multiplexers', IEEE Transactions on Microwave Theory and Techniques. https://doi.org/10.1109/TMTT.2021.3120450

Chen, X, Wang, Y & Zhang, Q 2021, 'Ring-shaped D-band E-plane filtering coupler', IEEE Microwave and Wireless Components Letters. https://doi.org/10.1109/LMWC.2021.3082524

Salek, M, Wang, Y & Lancaster, MJ 2021, 'Two‐GHz hybrid coaxial bandpass filter fabricated by stereolithography 3‐D printing', International Journal of RF and Microwave Computer-Aided Engineering , vol. 31, no. 2, e22501. https://doi.org/10.1002/mmce.22501

Conference contribution

Wu, Y, Dai, J, Sun, L, Wang, Y, Lu, Y & Huang, J 2021, A microstrip filtering patch antenna with asymmetric gain response. in 2020 50th European Microwave Conference, EuMC 2020., 9338148, European Conference on Microwave, Institute of Electrical and Electronics Engineers (IEEE), pp. 1135-1138, 50th European Microwave Conference, EuMC 2020, Utrecht, Netherlands, 12/01/21. https://doi.org/10.23919/EuMC48046.2021.9338148

View all publications in research portal