Superconducting switching circuit, memory cell and memory circuit, with resonance damping resistors

Patent · Tue Nov 15 04:00:00 EST 1988

OSTI ID:6404903

Harada, Y; Kawabe, U; Goto, E; Miyamoto, N

This patent describes a superconducting switching circuit comprising: first and second Josephson junction elements connected in series; first and second excitation inductors connected in series to each other and connected in series to the first and second Josephson junction elements; an exciting line magnetically coupled to the first and second excitation inductors; a load inductor having a first end connected to a connecting point of the first and second Josephson junction elements and having a second end connected to a connecting point of the first and second excitation inductors; an input signal line coupled to the load inductor; and first and second resistors connected, respectively, to a first current path including at least the first Josephson junction element and a second current path including at least the second Josephson junction element thereby effecting suppression of unwanted resonance in the current paths, wherein the first and second current paths belonging to the circuit including the first and second Josephson elements, the first and second excitation inductors and the load inductor.

• Assignee: Hitachi, Ltd. and Rikagaku Kenkyusho, Tokyo
• Patent Number(s): US 4785426
• OSTI ID: 6404903
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420201* -- Engineering-- Cryogenic Equipment & Devices
420800 -- Engineering-- Electronic Circuits & Devices-- (-1989)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
DESIGN
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
ENERGY-LEVEL TRANSITIONS
EQUIPMENT
EXCITATION
JOSEPHSON JUNCTIONS
JUNCTIONS
MEMORY DEVICES
RESISTORS
SUPERCONDUCTING JUNCTIONS
SWITCHING CIRCUITS