Patent ID: 11909378
Assignee: SKYWORKS SOLUTIONS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A wireless communication device comprising:
a filter including a surface acoustic wave device having a piezoelectric layer, a first reflector over the piezoelectric layer, a second reflector over the piezoelectric layer, an interdigital transducer electrode structure having a first side closer to the first reflector and a second side closer to the second reflector over the piezoelectric layer and positioned between the first reflector and the second reflector, and a high speed layer positioned over at least a portion between the first side and the first reflector such that an acoustic wave propagation velocity in a fast region overlapping the high speed layer is greater than an acoustic wave propagation velocity in a region between the first side and the second side;
an antenna operatively coupled to the filter;
a radio frequency amplifier operatively coupled to the filter and configured to amplify a radio frequency signal; and
a transceiver in communication with the radio frequency amplifier.