US 12,149,230 B2
Dynamic band steering filter bank die having filter skirt management
Gangadhar Burra, Fremont, CA (US); Bror Peterson, Fairview, TX (US); Richard Perkins, Encinitas, CA (US); and Chris Levesque, Fountain Valley, CA (US)
Assigned to Qorvo US, Inc., Greensboro, NC (US)
Filed by Qorvo US, Inc., Greensboro, NC (US)
Filed on Jun. 9, 2021, as Appl. No. 17/342,948.
Prior Publication US 2022/0399875 A1, Dec. 15, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H03H 9/60 (2006.01); H03F 3/24 (2006.01); H03H 9/54 (2006.01)
CPC H03H 9/605 (2013.01) [H03F 3/245 (2013.01); H03H 9/54 (2013.01); H03F 2200/294 (2013.01); H03F 2200/451 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A filter bank die comprising:
a first acoustic wave (AW) filter having a first antenna terminal and a first filter terminal, wherein the first AW filter is configured to have a filter skirt with a slope that spans at least a 100 MHz gap between adjacent passbands; and
a second AW filter having a second filter terminal, and a second antenna terminal coupled to the first antenna terminal to effectively diplex signals that pass through the first AW filter and the second AW filter; wherein the first AW filter is configured as a bandpass filter to pass Unlicensed National Information Infrastructure (UNII) bands 1 to 2a (UNII-1 to UNII-2a) passband with a filter skirt having a rising or falling slope that spans up to a 160 MHz gap between adjacent passbands.