An integrated surface wave device using silicon MOSFETs and ZnO film transducers

Monolithic Surface Wave Transversal Filter

“…CPAR consists primarily of drain to substrate junction capacitance , CDB, drai n to gate overlap capacitance, COD, both associated with the drain junctions of MOSFET detectors, and CDL, t he capacitance of the drain current summing line. Al though equation (4) indicates the desirability of low g values, equation ( 10) says that g must be sufficiently large to keep QL less than 10 for a given ~P AR .…”

SAW Programmable Matched Filter Signal Processor

“…The first was a 31-bit bi-phase matched filter with a 6 X 31 ROM stored code address to the I --. & piezoresistive taps.1- 3 In the second development shift register and bucket brigade circuitry were added to control tap phase and amplitude. 4 - 7 The most recent development, described in this report, addressed the limitations uncovered in the previous programs.…”