Title :
A cryogenic system for RF measurements on superconducting vortex flow transistors
Author :
Mcginnis, David P. ; Beyer, James B. ; Nordman, James E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
fDate :
6/1/1988 12:00:00 AM
Abstract :
A scheme for measuring the RF properties of the superconducting vortex flow transistor (VFT) is presented. This scheme features a low-crosstalk RF launcher with solderless contacts, a cryogenic system that permits room temperature access in close proximity to the VFT, and a circuit configuration that allow vector S-parameter measurements at power levels below -90 dBm
Keywords :
S-parameters; cryogenics; electric variables measurement; electronic equipment testing; flux flow; superconducting junction devices; RF measurements; low-crosstalk RF launcher; superconducting vortex flow transistors; vector S-parameter measurements; Circuits; Coplanar waveguides; Crosstalk; Cryogenics; Fluid flow measurement; Impedance; Proportional control; Radio frequency; Substrates; Waveguide junctions;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
