Radiofrequency Waveform Synthesis with the Josephson Arbitrary Waveform Synthesizer

Published

July 7, 2018

Author(s)

Justus Brevik, Christine A. Donnelly, Nathan Flowers-Jacobs, Anna Fox, Pete Hopkins, Paul Dresselhaus, Samuel P. Benz

Abstract

We have measured the frequency-dependent voltage output up to 100 MHz of a modified version of the Josephson Arbitrary Waveform Synthesizer. An impedance-matching resistor was integrated within the Josephson junction array circuit to match the nominally zero array impedance to a transmission line and a 50 Ω load. The matching resistor significantly reduces ripple in the output voltage transfer function due to reflections from impedance mismatches, but it negatively impacts the quantum accuracy of the output. The resulting transfer function is flat within 0.01 dB up to 10 MHz, above which it deviates by no more than 0.15 dB.

Proceedings Title

2018 Conference on Precision Electromagnetic Measurement

Conference Dates

July 8-13, 2018

Conference Location

Paris, FR

Pub Type

Conferences

Download Paper

https://doi.org/10.1109/CPEM.2018.8501023

Local Download

Keywords

Digital-analog conversion, Josephson arrays, signal synthesis, standards, superconducting device measurements, superconducting integrated circuits, voltage measurements.

Citation

Brevik, J. , Donnelly, C. , Flowers-Jacobs, N. , Fox, A. , Hopkins, P. , Dresselhaus, P. and Benz, S. (2018), Radiofrequency Waveform Synthesis with the Josephson Arbitrary Waveform Synthesizer, 2018 Conference on Precision Electromagnetic Measurement, Paris, FR, [online], https://doi.org/10.1109/CPEM.2018.8501023, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925117 (Accessed July 28, 2025)