A multi-layer piezoelectric substrate surface acoustic wave device is disclosed. The acoustic wave device can include a multi-layer piezoelectric substrate including a support substrate and a piezoelectric layer, a filter circuit including a plurality of resonators in electrical communication with the piezoelectric layer and a phase cancelling circuit integrated with the filter circuit. The piezoelectric layer has a first side facing the support substrate, a second side opposite the first side, and a sidewall extending between the first side and the second side and defining a periphery of the piezoelectric layer. The sidewall is tapered such that the first side is wider than the second side. An acoustic track of the phase cancelling circuit is offset from the plurality of resonators.

A multi-layer piezoelectric substrate surface acoustic wave device is disclosed. The acoustic wave device can include a multi-layer piezoelectric substrate including a support substrate and a piezoelectric layer, a filter circuit in electrical communication with the piezoelectric layer, and a phase cancelling circuit integrated with the filter circuit. The piezoelectric layer has a first side facing the support substrate, a second side opposite the first side, and a sidewall extending between the first side and the second side and defining a periphery of the piezoelectric layer. The sidewall is tapered such that the first side is wider than the second side. An acoustic track of the phase cancelling circuit extends between a first periphery portion and a second periphery portion of the sidewall. The phase cancelling circuit is positioned within center seventy percent of a width between the first periphery portion and the second periphery portion.

A multi-layer piezoelectric substrate surface acoustic wave device is disclosed. The acoustic wave device can include a multi-layer piezoelectric substrate including a support substrate and a piezoelectric layer, a filter circuit including a plurality of resonators in electrical communication with the piezoelectric layer, a phase cancelling circuit integrated with the filter circuit, and a pair of acoustic obstruction structures including a first acoustic obstruction structure and a second acoustic obstruction structure positioned such that the phase cancelling circuit is located between the pair of acoustic obstruction structures along an acoustic track of the phase cancelling circuit.

A multi-layer piezoelectric substrate surface acoustic wave device is disclosed. The surface acoustic wave device can include a multi-layer piezoelectric substrate including a support substrate and a piezoelectric layer, a filter circuit including a plurality of resonators in electrical communication with the piezoelectric layer, a phase cancelling circuit integrated with the filter circuit, and an acoustic obstruction structure in the acoustic track of the phase cancelling circuit. An acoustic track of the phase cancelling circuit is offset from the plurality of resonators.