Currently, he is a senior lecturer in the Department of Electronic and Electrical Engineering at the University of Leeds, where he has researched topics connected with microwave solid-state devices
and circuits for 20 years.
Kennedy worked in the area of microwave solid-state devices
at Cornell University and RCA Research Laboratories in Princeton, New Jersey, from 1964 to 1968.
Rapid growth in the performance exhibited by then-new microwave solid-state devices
along with a perceived maturity of microwave power tube technology convinced military decision-makers that long range military needs would be served best by solid-state RF sources.