J HelszajnProfessor Joseph Helszajn OBE is an international authority on nonreciprocal microwave circuits and devices. After industrial experience in the USA he obtained his Ph.D. from the University of Leeds and spent much of his academic career at Heriot-Wat University, where he founded its microwave laboratory. A Fellow of the IEE and IEEE, he acted as an Honorary Editor of the IEE Proceedings for 18 years and has published 11 books. In 1995 he was awarded the IEE JJ Thomson Medal. Read More Read Less