The Schottky diode acoustoelectric memory and correlator—A novel programmable signal processor

A novel acoustoelectric device capable of storing large bandwidth analog signals and correlating the stored signal with other signals is described. The device uses charge storage in an array of Schottky diodes on a silicon strip mounted adjacent to a lithium niobate surface-wave delay line. The paper emphasizes experimental results characterizing the device in terms of storage capacity, storage time, linearity, and efficiency. Based on the experimental data, a short discussion is given on anticipated performance limitations.