Novel programmable high-speed analog transversal filter

A totally monolithic surface acoustic wave transversal filter has been demonstrated which utilizes an integrated multiplexed FET array to program the desired filter function. The device is based on ZnO on Si SAW technology with the FET array being fabricated using a standard NMOS processing schedule. Experimental results are presented which show the analog correlation of RF modulated waveforms (f
o
= 100 MHz) with various preprogrammed filter functions.