Obituary Gilbert Grynberg (1948-2003)

We mourn the death of Professor Dr. Gilbert Grynberg, April 17, 1948 - January 27, 2003. We have lost an excellent and highly esteemed scientist, an outstanding character and a good friend. He has been a very active colleague in the merger of Zeitschrift für Physik and Journal de Physique in the early days. As one of the Co-Editors-in-Chief of The European Physical Journal D, from its start, he has formed the scienti.c standards of EPJ. Untiringly he has served our Journal with greatest dedication. We are grateful that he has been with us. The editorial board and o.ce of EPJ B Siegfried Grossmann, Denis Jérome, Antonio Paoletti     

Ultrasonic transducers: 3. Surface wave transducers

The many examples cited indicate the potential use of elastic surface waves in modern radar and communications signal processing. The use of surface waves reduces the physical size of most devices by factors as large as 10⁵ over their electromagnetic counterparts. An added attractive feature of elastic surface wave devices is that the fabrication techniques involved are compatible with integrated microcircuit techniques so widespread in general microwave technology.