REVIEW 2 cited by
Wideband Josephson Parametric Amplifier with Integrated Transmission Line Transformer
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
read the original abstract
We describe a wide-band Josephson Parametric Amplifier (JPA) that is impedance-matched using an integrated compact superconducting transmission line transformer. The impedance transformer consists of two broadside coupled transmission lines configured in a Ruthroff topology which enables a wide matching bandwidth from 2 to 18 GHz, reducing the input line impedance and the device resonance quality factor by a factor of 4. This enables gain flatness and flexibility in the choice of the amplifier's tuning range. The amplifier has up to 20dB gain, with less than 1 dB of ripple, 2-3 GHz gain-bandwidth product and -126 dBm input 1-dB compression point. Moreover, the device active area fits into a 1mm x 1mm space, thus easing integration into large quantum systems.
Forward citations
Cited by 2 Pith papers
-
Design of Advanced Readout and System-on-Chip Analog Circuits for Quantum Chip
A proposed JPA gain-profile co-design aims to remove Purcell filters from superconducting readout, together with a low-power CMOS SoC receiver, both supported only by simulation.
-
Technical Review on RF-Amplifiers for Quantum Computer Circuits: New Architectures of Josephson Parametric Amplifier
A review and simulation study arguing that Blochnium-based Josephson parametric amplifiers improve linearity and tunability over conventional arrays, with a headline simulated P1dB of -92 dBm.
Discussion (0). Continue with ORCID to comment.