Title :
Shift register performance at 4 GHz
Author :
Przybysz, John X. ; Meier, Daniel L. ; Kang, Ana Joonhee
Author_Institution :
Westinghouse Electr. Corp., Pittsburg, PA, USA
fDate :
3/1/1991 12:00:00 AM
Abstract :
Two mask layouts were designed to give Josephson shift register operation above 2 GHz. Custom instrumentation was assembled for tests up to 4 GHz. Shift registers using coplanar waveguide structures for on-chip power distribution operated properly up to 3.3 GHz. Better performance was obtained when power was distributed through microstrip transmission lines. At the tester limit of 4 GHz, microstrip circuits operated properly with bias margins of ±15%
Keywords :
shift registers; superconducting logic circuits; 4 GHz; Josephson shift register operation; bias margins; coplanar waveguide structures; mask layouts; microstrip transmission lines; on-chip power distribution; Assembly; Circuit testing; Coplanar transmission lines; Coplanar waveguides; Distributed parameter circuits; Instruments; Microstrip; Power distribution; Power transmission lines; Shift registers;
Journal_Title :
Magnetics, IEEE Transactions on
