US 12,327,667 B2
Harmonic suppression in dispersion resonators for traveling wave parametric amplifiers
Ted Thorbeck, Elmsford, NY (US); and Corrado P. Mancini, Hopewell Junction, NY (US)
Assigned to INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed by INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed on Jul. 23, 2022, as Appl. No. 17/871,931.
Prior Publication US 2024/0029932 A1, Jan. 25, 2024
Int. Cl. H01F 19/00 (2006.01); G06N 10/00 (2022.01); H10N 60/12 (2023.01); H10N 60/80 (2023.01)
CPC H01F 19/00 (2013.01) [G06N 10/00 (2019.01); H10N 60/12 (2023.02); H10N 60/805 (2023.02)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a transmission line comprising one or more unit cells, each unit cell comprising a capacitor to a ground and a Josephson junction in series configured to provide inductance and non-linearity; and
one or more resonators coupled to the transmission line, each resonator configured to (i) use a first mode of the resonator for resonant phase matching in the transmission line and (ii) prevent a second mode of the resonator from interacting with an intermodulation product of the transmission line.