100 MHz bandwidth love wave dispersive delay lines

Two experimental dispersive Love wave delay lines with a 100 MHz bandwidth have been implemented with 1) Bausch and Lomb T40 glass sputtered on fused silica, and 2) silica sputtered on a silicon single crystal. The piezoelectric transverse transducers are indium bonded on the waveguide surface. The results obtained show that a compression ratio larger than 1000 and bandwidths around 500 MHz can readily be achieved with delay lines of this type.