Articles by Alberto Asensio, José Luis Serrano, Javier Gismero and Alvaro Blanco Universidad Politécnica de Madrid, Department of Signals Systems and Radiocommuni

Introduction From the early 70’s, solid-state pulsed transmitters for primary and secondary radars (IFF-SSR) and also for communications systems (JTIDS) [1], have used silicon bipolar transistors. With such kind of devices, the common working operation mode was class C for optimizing the overall system efficiency and, consequently, reducing the...