US 11,949,404 B2
Acoustic wave component with stepped and slanted acoustic reflector
Rei Goto, Osaka (JP)
Assigned to Skyworks Solutions, Inc., Irvine, CA (US)
Filed by Skyworks Solutions, Inc., Irvine, CA (US)
Filed on Sep. 30, 2022, as Appl. No. 17/937,354.
Application 17/937,354 is a continuation of application No. 16/681,522, filed on Nov. 12, 2019, granted, now 11,502,668.
Claims priority of provisional application 62/768,674, filed on Nov. 16, 2018.
Prior Publication US 2023/0026184 A1, Jan. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H03H 9/25 (2006.01); H03H 9/64 (2006.01)
CPC H03H 9/25 (2013.01) [H03H 9/643 (2013.01); H03H 9/645 (2013.01); H03H 9/6463 (2013.01); H03H 9/6469 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An acoustic wave filter comprising:
a multi-mode surface acoustic wave filter including longitudinally coupled interdigital transducer electrodes positioned between a first acoustic reflector and a second acoustic reflector, the second acoustic reflector including acoustic reflector fingers having slanted pitches and stepped lengths; and
a plurality of acoustic wave resonators coupled to the multi-mode surface acoustic wave filter, the plurality of acoustic wave resonators arranged in a ladder topology, the acoustic wave filter configured to filter a radio frequency signal.