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

Claim 19:
20. A packaged radio frequency module comprising:
a piezoelectric layer;
a surface acoustic wave filter including a plurality of series acoustic wave resonators having at least a first acoustic wave resonator that includes at least one interdigital transducer electrode on the piezoelectric layer, the surface acoustic wave resonator configured to generate a surface acoustic wave having a wavelength of λ, the interdigital transducer electrode having an aperture of less than 10λ to concentrate a transverse spurious mode at a frequency, the acoustic wave filter further includes 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;
a radio frequency amplifier; and
a radio frequency switch coupled between the acoustic wave filter and the radio frequency amplifier, the acoustic wave filter, the radio frequency amplifier, and the radio frequency switch being enclosed within a common package.