Patent ID: 11923829
Assignee: SKYWORKS SOLUTIONS, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An electronic filter comprising:
a plurality of series arm acoustic wave resonators electrically connected in series between an input port and an output port;
a plurality of parallel arm acoustic wave resonators electrically connected on first sides between respective ones of the plurality of series arm acoustic wave resonators and electrically connected on second sides to ground; and
at least one additional acoustic wave resonator including a first additional acoustic wave resonator electrically connected in parallel with a first one of the plurality of series arm acoustic wave resonators and a second additional acoustic wave resonator electrically connected in parallel with a second one of the plurality of series arm acoustic wave resonators, at least one of the first and second additional acoustic wave resonators having a temperature coefficient of frequency lower than a temperature coefficient of frequency of the acoustic wave resonator to which it is electrically connected in parallel.