US 12,451,867 B2
Acoustic resonator filter bank system
Matthew S. Torpey, Ellicott City, MD (US); and Robert S. Howell, Silver Spring, MD (US)
Assigned to NORTHROP GRUMMAN SYSTEMS CORPORATION, Falls Church, VA (US)
Filed by Matthew S. Torpey, Ellicott City, MD (US); and Robert S. Howell, Silver Spring, MD (US)
Filed on Mar. 10, 2023, as Appl. No. 18/181,698.
Claims priority of provisional application 63/321,084, filed on Mar. 17, 2022.
Prior Publication US 2023/0299745 A1, Sep. 21, 2023
Int. Cl. H03H 9/64 (2006.01); H03H 9/72 (2006.01)
CPC H03H 9/6483 (2013.01) [H03H 9/6403 (2013.01); H03H 9/72 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An acoustic resonator filter bank system comprising:
a multiplex passive filter that is configured to provide a plurality of filtered versions of a radio frequency (RF) input signal;
a filter bank that comprises a plurality of filter blocks that are each configured to provide a plurality of pass-bands across a frequency spectrum, each of the filter blocks comprising a plurality of filter elements arranged between a respective plurality of filter-path nodes and a low-voltage rail, each plurality of filter elements including a plurality of filter-path capacitors in parallel with an acoustic resonator; and
a switch matrix that is configured to provide one of the filtered versions of the RF input signal to one of the filter blocks in the filter bank to provide an RF output signal having a frequency band corresponding to a respective one of the pass-bands.