Title :
Sampling time effects in the ACT device
Author :
Bogus, Edward G. ; Hoskins, Michael J. ; Hunsinger, Bill J.
fDate :
7/1/1991 12:00:00 AM
Abstract :
The signal-dependent sampling process in an acoustic charge transport (ACT) device is demonstrated. Theoretical calculations and experimental measurements show the direct effect of gate voltage, wave amplitude, and transport depth on the sampling interval. A decrease in gate voltage and transport depth, and an increase in wave amplitude, are shown to reduce the increase in sampling time delay for a fixed transport current. An analysis of the distortion generated by this nonuniform sampling is performed, and a channel-current-intercept value is computed for a typical ACT device.<>
Keywords :
surface acoustic wave devices; ACT device; acoustic charge transport device; channel-current-intercept value; distortion; experimental measurements; gate voltage effect; nonuniform sampling; sampling interval; sampling time delay; sampling time effects; signal-dependent sampling process; transport depth effect; wave amplitude effect; Acoustic devices; Acoustic distortion; Acoustic measurements; Delay effects; Distortion measurement; Performance analysis; Sampling methods; Signal processing; Signal sampling; Voltage;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
