Ultra-wideband radar-potential and limitations

Some of the more obvious uses of ultrawideband (UWB) radar are discussed, together with some of the problems (arising from limited source capabilities) in implementing adequate designs. It is pointed out that the primary limitation on such systems is the lack of peak output power. Previously, the pulse sources for these radars have been either transistor impulse generators or spark gaps; both of these sources have severe limitations. With the development of OASS devices, new possibilities for extending the performance of UWB radars become available. In particular, the repeatability and fast risetime of OASS devices, while operating at high power levels, are of extreme importance to this radar technology.<>