US 12,308,810 B2
Efficient subband channelizer for randomly-spaced frequency groups
William S. Song, Lexington, MA (US)
Assigned to Massachusetts Institute of Technology, Cambridge, MA (US)
Appl. No. 18/044,285
Filed by Massachusetts Institute of Technology, Cambridge, MA (US)
PCT Filed Jul. 12, 2021, PCT No. PCT/US2021/041240
§ 371(c)(1), (2) Date Mar. 7, 2023,
PCT Pub. No. WO2022/055611, PCT Pub. Date Mar. 17, 2022.
Claims priority of provisional application 63/077,751, filed on Sep. 14, 2020.
Prior Publication US 2023/0336161 A1, Oct. 19, 2023
Int. Cl. H03H 17/02 (2006.01)
CPC H03H 17/0273 (2013.01) 20 Claims
OG exemplary drawing
 
1. A subband channelizer for randomly spaced frequency groups, the subband channelizer comprising:
a first-stage channelizer configured to channelize a wideband input into a plurality of intermediate subbands, at least two of the plurality of intermediate subbands being partially overlapped; and
a plurality of second-stage channelizers each configured to generate a plurality of final subbands from one of the plurality of intermediate subbands,
wherein the intermediate subbands have wider bandwidth than the final subbands.