surface-acoustic-wave filter

surface-acoustic-wave filter

[′sər·fəs ə′kü·stik ′wāv ‚filtər] (electronics) An electric filter consisting of a piezoelectric bar with a polished surface along which surface acoustic waves can propagate, and on which are deposited metallic transducers, one of which is connected, via thermocompression-bonded leads, to the electric source, while the other drives the load.