Dispersive delay lines based on the use of narrow open metal reflectors and fan transducer

Narrow electrodes on YZ-LiNbO3 as an alternative to etched grooves for dispersive delay lines

“…An attempt to use narrow reflectors in inline DDLs was reported in [11]. The device geometry was similar to the type 2 devices studied above: two pairs of "mutually blind" standard IDTs were used to obtain a dispersive signal response and to suppress the direct propagation signal.…”