Wenlong He received the B.Sc. degree in physics from Suzhou University, Jiangsu, China, the M.Sc. degree in accelerator physics from the China Academy of Engineering Physics, Chengdu, China, and the Ph.D. degree in relativistic electron beams and masers from the Department of Physics, University of Strathclyde, Glasgow, U.K., in 1983, 1988 and 1995 respectively. He is now a Senior Research officer in the Physics Department, University of Strathclyde. His main research interests include relativistic electron beams, pulsed power technologies, Gyro-devices and other high frequency (up to Terahertz) high-power microwave devices. As a senior experimentalist and physicist in an internationally acknowledged group in the research field of high frequency, high power microwave generation based on relativistic electron beam instabilities, He plays leading role in a series of world-first breakthrough experiments. He is a world-wide leader in the research area of broadband, high frequency, high power Gyrotron travelling wave tube amplifier and backward wave oscillator.