Wei Liu received his BSc (Space Physics) and LLB. degrees from Peking University, China, in 1996 and 1997, respectively, MPhil from the Department of Electrical and Electronic Engineering, University of Hong Kong in 2001, and PhD from the School of Electronics and Computer Science, University of Southampton, UK, in 2003. He then worked as a postdoc first at Southampton and later at Imperial College London. Since September 2005, he has been with the Department of Electronic and Electrical Engineering, University of Sheffield, UK, first as a Lecturer and then a Senior Lecturer. He has published 370+ journal and conference papers (200+ journal papers), five book chapters, and two research monographs titled ``Wideband Beamforming: Concepts and Techniques'' (Wiley, March 2010) and ``Low-Cost Smart Antennas'' (Wiley, March 2019), respectively. His research interest is mainly focused on sensor (antennas, etc.) array design and signal processing, such as beamforming, direction of arrival estimation, tracking and localization, and imaging, which have a wide range of applications to radar, sonar, and wireless communications. He is a member of the Digital Signal Processing Technical Committee of the IEEE Circuits and Systems Society (Chair from 2022 to 2024) and the Sensor Array and Multichannel Signal Processing Technical Committee of the IEEE Signal Processing Society (Chair from 2021 to 2022). He was an Associate Editor for IEEE Trans. on Signal Processing (2015-2019) and IEEE Access (2016-2021), and is currently an editorial board member of the journals Frontiers of Information Technology and Electronic Engineering and Journal of The Franklin Institute.