Patent ID: 11876507
Assignee: SKYWORKS SOLUTIONS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An acoustic wave filter with a transverse spurious mode for improving skirt steepness, the acoustic wave filter comprising:
a plurality of series acoustic wave resonators including at least a first acoustic wave resonator that includes an interdigital transducer electrode and configured to generate an acoustic wave having a wavelength of λ, the interdigital transducer electrode having a first aperture of less than 10λ to concentrate a transverse spurious mode above a resonate frequency, and the transverse spurious mode of the first acoustic wave resonator configured to improve steepness of a skirt of the acoustic wave filter; and
a plurality of shunt acoustic wave resonators including at least a second acoustic wave resonator with a lower resonate frequency than the first acoustic wave resonator.