Broadband calibrated scattering parameters characterization of a superconducting quantum interference device amplifier
- National Institute of Standards and Technology, Boulder, Colorado 80305 (United States)
In this work, we characterize the 2-port scattering parameters of a superconducting quantum interference device amplifier at {approx}20 mK over several gigahertz of bandwidth. The measurement reference plane is positioned on a 6.25 {Omega} microstrip line situated directly at the input and output of the device by means of a thru-reflect-line cryogenic calibration procedure. From the scattering parameters, we derive the device available power gain, isolation, and input impedance over the 2-8 GHz range. This measurement methodology provides a path towards designing wide-band matching circuits for low impedance superconducting amplifiers operating at dilution refrigerator temperatures.
- OSTI ID:
- 22122791
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 2 Vol. 103; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Microstrip superconducting quantum interference device radio-frequency amplifier: Scattering parameters and input coupling
A modified superconducting current injection transistor and distributed amplifier design
The superconducting quantum interference device microstrip amplifier: Computer models
Journal Article
·
Wed Jan 23 23:00:00 EST 2008
· Applied Physics Letters
·
OSTI ID:957184
A modified superconducting current injection transistor and distributed amplifier design
Conference
·
Tue Feb 28 23:00:00 EST 1989
· IEEE Trans. Magn.; (United States)
·
OSTI ID:6044093
The superconducting quantum interference device microstrip amplifier: Computer models
Journal Article
·
Thu Nov 30 19:00:00 EST 2000
· Journal of Applied Physics
·
OSTI ID:40204966