ACOUSTIC RESONATOR FILTER

An acoustic resonator filter includes a series portion including at least one series acoustic resonator electrically connected, in series, between first and second ports of the acoustic resonator filter configured to pass a radio-frequency (RF) signal from the first port to the second port, a shunt portion including a plurality of shunt acoustic resonators electrically connected to each other, in anti-series, between one node of the series portion and a ground, and a DC voltage terminal configured to generate a DC voltage across at least one of the plurality of shunt acoustic resonators by an electrical connection of the DC voltage terminal to a first electrode of the at least one of the plurality of shunt acoustic resonators and to a different second electrode of the at least one of the plurality of shunt acoustic resonators. A DC voltage may be generated across the at least one series acoustic resonator.