Title :
An experimental Josephson digital correlator
Author_Institution :
Hypres Inc., Elmsford, NY, USA
Abstract :
A circuit capable of performing correlation of two sets of 16-sample, one-bit digital data has been designed and tested up to a clock frequency of 12 GHz. The correlator consists of two 16-b shift registers for delay and storage elements and an array of 16 exclusive-OR gates for the multiply-and-add function. It is fabricated using an Nb/AlO/sub x//Nb Josephson-junction process at a critical-current density of 1000 A/cm/sup 2/.<>
Keywords :
correlators; shift registers; signal processing equipment; superconducting logic circuits; 12 GHz; Josephson digital correlator; Nb-AlO/sub x/-Nb junction; clock frequency; critical-current density; exclusive-OR gates; multiply-and-add function; shift registers; Circuit testing; Clocks; Correlators; Impedance; Niobium; Performance evaluation; Radar signal processing; Resistors; Shift registers; Strontium;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
