US 11,791,799 B2
Ladder-type surface acoustic wave device
Manjunath Swamy, Altamonte Springs, FL (US)
Assigned to Qorvo US, Inc., Greensboro, NC (US)
Filed by Qorvo US, Inc., Greensboro, NC (US)
Filed on Jul. 19, 2021, as Appl. No. 17/379,090.
Application 17/379,090 is a division of application No. 16/225,947, filed on Dec. 19, 2018, granted, now 11,070,194.
Claims priority of provisional application 62/719,284, filed on Aug. 17, 2018.
Prior Publication US 2021/0351763 A1, Nov. 11, 2021
Int. Cl. H03H 9/64 (2006.01)
CPC H03H 9/6483 (2013.01) [H03H 9/645 (2013.01); H03H 9/6453 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A surface acoustic wave (SAW) device, comprising:
a piezoelectric layer;
two reflective structures;
a first shunt interdigital transducer (IDT) coupled between a first signal point and ground; and
a series IDT coupled between a second signal point and a third signal point, wherein:
the first signal point, the second signal point, the third signal point, and the ground are not directly electrically connected;
the two reflective structures, the first shunt IDT, and the series IDT reside over the piezoelectric layer; and
the first shunt IDT and the series IDT are arranged between the two reflective structures.