DOI: 10.5281/zenodo.15657611
title: Wireless Josephson parametric amplifier above 20 GHz

description: Brief description

This repository contains data, code, and other materials for "Wireless Josephson amplifier above 20 GHz". Files are zipped by types (data, fabrication, measurement code and results)

Data formats:

.db: database file storing experimental data. QCoDeS version 0.39.1, QCoDeS github repo: https://github.com/microsoft/Qcodes. Please refer to 'plottr' tool to view the database files: https://github.com/toolsforexperiments/plottr . Plottr version: 0.0

.hdf5: database file storing experimental data. Please use h5py to read data, documents: https://docs.h5py.org/en/stable/index.html

.gds: GDSII pattern files for Litography

.ipynb: ipython notebooks that run measurements

.py: python scripts for generating the GDSII patterns or conducting measurements

.emz: AWR projects (model and data), AWR design environment version is 22.1

.aedt: Ansys HFSS projects, Ansys HFSS version is 2022R2

File structure and instruction:

GDS << GDS files for simulations and device fabrication





wjpa_Squid_2step.py << python script for generating WJPA masks (EBL + photolithography)




wjpa_squid-v2.gds << WJPA pattern (EBL + photolithography)




5G-transmon-v1-array.py << python script for generating transmon pattern (EBL)




5g-transmon-v1-array.gds << transmon pattern (EBL)



HFSS simulation





Plot and analyze device parameters.ipynb << python script for analyzing simulation results, file used: 'EM_realistic_LJ.csv'




HFSS_WJPA.aedt << HFSS model for the 3D WJPA structure




EM_realistic_LJ.csv << exported data from 'HFSS_WJPA.aedt'



AWR simulation



high freq JPA.emz << AWR model and results of lumped schematic model of the WJPA and its harmonic balanced simulation to understand its nonlinear behavior. 


Data and data analysis





RamseyPhase_wdrive_fd22G23_18_21.hdf5 << data of the Ramsey-like experiement.




signal_bare+50khz19_14_58.hdf5 << spectrum analyzer data with WJPA OFF




signal_+50khz_amp18_59_49.hdf5 << spectrum analyzer data with WJPA ON




Data analysis - qubit + jpa expt.ipynb << python script for processing qubit-based power calibration and noise measurement, files used are 'RamseyPhase_wdrive_fd22G23_18_21.hdf5','signal_bare+50khz19_14_58.hdf5','signal_+50khz_amp18_59_49.hdf5'.




0212-VTS.db << data of VTS-based y-factor measurement to test noise performance of the WJPA.




VTS noise calibration data analysis.ipynb << python script for processing y-factor method noise measurement, data used is '0212-VTS.db'.




1201.db << part of data of WJPA's linear response at various flux bias




0131.db << part of data of WJPA's linear response at various flux bias




0128.db << example data of WJPA gain vs pump power and freuquency




0211-CM.db << data of WJPA's dynamic range (p1dB) experiement




0217-agilent.db << part of data for testing WJPA amplification at various flux bias




0201-CM.db << part of data for testing WJPA amplification at various flux bias




Gain data analysis - 0602.ipynb << python script for processing WJPA linear and gain performance, files used are '1201.db','0131.db','0128.db','0211-CM.db','0217-agilent.db','0201-CM.db'