SAW convolvers for matched filtering

The SAW convolver whose design features and performance capabilities are presently discussed offers programmability, large bandwidth capability, and simple and rugged construction, so that it may be considered ideally suited to the processing of bursts of phase-coded waveforms with rapidly changing codes and large bandwidths that are typical of spread spectrum secure communications techniques. Applications for the device accordingly lie in switched packet radio networks, missile guidance systems, and identification systems. Attention is given to the schematic of a state-of-the-art convolver design employing lithium niobate as the piezoelectric substrate material.