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

Dr Yi Wang

Department of Electronic, Electrical and Systems Engineering
Senior Lecturer in RF and Microwave Engineering

Contact details

University of Birmingham
B15 2TT

Yi Wang is a Senior Lecturer in RF and Microwave Engineering.

Yi has published over 100 research papers in high frequency devices from microwave to terahertz frequencies. His research has been funded by UK EPSRC, industry and oversea research agency.

His present research interests are microwave circuits and their co-design, terahertz devices and micromachining, antennas and additive manufacturing.


  • 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 photoresists), 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, Yi joined Birmingham as a Senior Lecturer.

Yi Wang has published over 100 peer-reviewed papers. He has a breadth of knowledge and expertise in microwave circuit design, micro-fabrications, microwave and antenna measurements, and electronic materials. His research has benefited greatly from links with industries such as ESTEC / European Space Agency, Huawei, BAE Systems, and National Physical Laboratory. He also collaborates closely with universities and institutions in the UK and aboard.

Dr Wang has been appointed as a visiting Professor of Shanghai Institute of Ceramics (microwave materials and devices), Chinese Academy of Science between 2017 and 2020. He has been an external examiner for a number of universities (UCL, Sheffield, Liverpool, Surrey, Kent).

His research has been funded by EPSRC, Huawei and National Natural Science Foundation of China (NSFC).

Postgraduate supervision

  • Microwave devices for base stations and satellites (Antenna and filter integration and co-design; Multiport filtering networks and synthesis; Device functional integration)
  • THz passive components, antennas and front-end systems for radars and communications
  • Emerging device technologies enabled by new materials and fabrication techniques (e.g. micromachining, additive manufacturing)
  • Microwave sensors for material characterisation and identification

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


Dr Yi Wang’s research falls in the Communications and Sensing theme and he is a member of Emerging Device Technologies research group. His main research activities are:

Microwave device technology and theory

Many new challenges facing the world are finding solutions from microwave (300 MHz – 300 GHz) technologies. For instance, 5G communications demand smaller, better and cleverer (adaptive, reconfigurable, multi-role) microwave devices. New generation satellites desire lighter and flexible payloads. Hospitals and patients benefit greatly from wireless sensors for remote health monitoring, non-invasive diagnostics and treatments. Yi is working on:

  • Synthesis and application of novel multi-port filtering networks (MPFNs)
  • Integrated filter-antennas and other functional integration devices
  • Additive manufacturing
  • Microwave sensors

mm-Wave / THz devices for radars and communications

Terahertz (THz) wave is the spectrum between microwave and far-infrared light and relates to the frequencies from 300 GHz to 3 THz. It is also known as sub-millimetre wave. It is widely known that THz wave technology holds great promise for emerging industrial and scientific applications - security screening, remote sensing, non-destructive testing, material characterisation and communications. Because of immature device technologies, this part of the spectrum hasn’t been extensively utilised. The general objective of Yi’s research is to produce high-performance key components for future THz communication systems, metrology instruments and sensors. Most of these devices will be enabled by advanced micro/nano fabrication techniques. Yi is working on:

  • THz components and front-end systems
  • Micromachined passive circuits and antennas
  • Low loss THz waveguides and THz resonators
  • Frequency selective surfaces and metamaterials

A common theme of the research is to explore the use of novel design methods, new materials and advanced manufacturing techniques in microwave and terahertz devices.

Other activities

  • Member of EPSRC Peer Review College
  • Associate Editor of IET Microwaves, Antennas & Propagation
  • Guest editor of IEEE Access, Wireless Communications and Mobile Computing, International Journal of Microwave Science and Technology
  • Regular reviewer for a number of journals, including IEEE T-MTT, IEEE T-AP, IEEE T-VT, Proceedings of the IEEE, IEEE MWCL, AWPL, IET MAP, EL, JMM, Physica, Micromachines, and Superconductor Science & Technology


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

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

Mohammed, AM, Wang, Y & Lancaster, MJ 2020, '3D printed coaxial microwave resonator sensor for dielectric measurements of liquid', Microwave and Optical Technology Letters, vol. 63, no. 3, pp. 805-810. https://doi.org/10.1002/mop.32679

Zhang, F, Guo, C, Zhang, Y, Gao, Y, Liu, B, Shu, M, Wang, Y, Dong, Y, Lancaster, MJ & Xu, J 2020, 'A 3-D printed bandpass filter using tm-mode slotted spherical resonators with enhanced spurious suppression', IEEE Access, vol. 8, pp. 213215-213223. https://doi.org/10.1109/ACCESS.2020.3040293

Yu, Y, Liu, B, Wang, Y, Lancaster, MJ & Cheng, QS 2020, 'A general coupling matrix synthesis method for all-resonator diplexers and multiplexers', IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 3, pp. 987-999. https://doi.org/10.1109/TMTT.2019.2957430

Zhang, F, Wu, Y, Sun, L, Gao, Y, Wang, Y & Xu, J 2020, 'A microstrip lossy diplexer with flat channel passbands', Progress In Electromagnetics Research M, vol. 90, pp. 99-108. https://doi.org/10.2528/PIERM20011605

Xu, C, Wang, Z, Wang, Y, Wang, P & Gao, S 2020, 'A polarization-reconfigurable wideband high-gain antenna using liquid metal tuning', IEEE Transactions on Antennas and Propagation, vol. 68, no. 8, pp. 5835-5841. https://doi.org/10.1109/TAP.2020.2996773

Kou, H, Tan, Q, Wang, Y, Zhang, G, Su, S & Xiong, J 2020, 'A wireless slot-antenna integrated temperature-pressure-humidity sensor loaded with CSRR for harsh-environment applications', Sensors and Actuators B: Chemical, vol. 311, 127907. https://doi.org/10.1016/j.snb.2020.127907

Alkaraki, S, Kelly, J, Borja, AL, Mittra, R & Wang, Y 2020, 'Gallium-based liquid metal substrate integrated waveguide switches', IEEE Microwave and Wireless Components Letters. https://doi.org/10.1109/LMWC.2020.3040795

Lu, Y, Liu, Q, Wang, Y, Gardner, P, He, W, Chen, Y, Huang, J & Liu, T 2020, 'Seamless integration of active antenna with improved power efficiency', IEEE Access, vol. 8, 9026889, pp. 48399-48407. https://doi.org/10.1109/ACCESS.2020.2978906

Gao, Y, Zhang, F, Lv, X, Guo, C, Shang, X, Li, L, Liu, J, Liu, Y, Wang, Y & Lancaster, MJ 2020, 'Substrate integrated waveguide filter-amplifier design using active coupling matrix technique', IEEE Transactions on Microwave Theory and Techniques, vol. 68, no. 5, 9007486, pp. 1706-1716. https://doi.org/10.1109/TMTT.2020.2972390

Wang, D, Lancaster, MJ, Wang, Y, Shum, KM & Zhang, Q 2020, 'WR-1.5 (500–750 GHz) waveguide bandpass filter fabricated using high precision computer numerically controlled machining', Microwave and Optical Technology Letters. https://doi.org/10.1002/mop.32739

Zhang, F, Gao, S, Li, J, Yu, Y, Guo, C, Li, S, Attallah, M, Shang, X, Wang, Y, Lancaster, MJ & Xu, J 2019, '3-D printed slotted spherical resonator bandpass filters with spurious suppression', IEEE Access, vol. 7, pp. 128026-128034. https://doi.org/10.1109/ACCESS.2019.2938972

Guo, C, Huggard, PG, Dhayalan, Y, Shang, X, Powell, J, Lancaster, MJ, Xu, J, Wang, Y, Wang, H & Alderman, B 2019, 'A 135-150-GHz Frequency Tripler Using SU-8 Micromachined WR-5 Waveguides', IEEE Transactions on Microwave Theory and Techniques, pp. 1-10. https://doi.org/10.1109/TMTT.2019.2955684


Gao, Y, Shang, X, Wang, Y & Lancaster, MJ 2020, 'An x-band waveguide orthomode transducer with integrated filters', Microwave and Optical Technology Letters, vol. 62, no. 1, pp. 78-81. https://doi.org/10.1002/mop.31986

View all publications in research portal