Transducer electrodes for filter or delay lines utilizing surface waves

摘要

Transducer electrodes for filters or delay lines using surface waves wherein the transducers are formed by interdigital conducting films formed on the surface of piezoelectric substrates and wherein the length of the interdigital electrode fingers vary and wherein all of the fingers on at least one side are attached to an enlarged metal area which has a width equivalent to the total width of all of the electrode fingers on this side.