I graduated in 1971 from Birmingham University and took my PhD in microwave circuit theory in 1977 at Leeds University. I have worked in industry for all my career, in large companies including BT, Marconi and Motorola; technical consultancies including PA Technology and Scientific Generics; and start-ups including Cognito, Ionica, ip.access, and Cognovo.
Cognovo was acquired by u-blox AG of Switzerland in 2012 and I retired from u-blox in 2016 after working on the early development of what became the 3GPP NB-IoT standard and developing the world's first modules supporting it. Also at u-blox I led a cooperation with the Bristol University CDT in Communications and the CSN group in novel circuit and system methods for duplexing in cellular terminals.
From 2015 I was Royal Academy of Engineering Visiting Professor in the Department, and I now chair the CDT Industrial Advisory Board. In 2015 I was appointed the first chairman of the IoT Security Foundation, and I still serve on its Executive Steering Board as a director emeritus. I am a life member of the IEEE. I chair the editorial panel of the Cambridge Wireless Journal.
