Influence of the bias supply lines on the performance of RSFQ circuits

Author

Tolkacheva, Elena ; Engseth, Henrik ; Kataeva, Irina ; Kidiyarova-Shevchenko, Anna

Author_Institution

Microtechnol. & Nanosci. Dept., Chalmers Univ. of Technol., Gothenburg, Sweden

Volume

15

Issue

2

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

276

Lastpage

279

Abstract

Two effects of the bias supply line on the performance of RSFQ circuits have been studied: inductive coupling between the bias supply line and circuit inductances; effect of the mirrored current in the ground plane. The following results of the study are presented: 3D calculations and experimental measurements of inductive coupling between parallel and perpendicular microstrips in presence of one and two ground planes; calculated margins dependence on the external magnetic field in RSFQ cell. Bias current density extraction method has been developed and implemented in RSFQ circuit design flow.

Keywords

current density; electromagnetic coupling; quantum gates; superconducting logic circuits; 3D calculations; RSFQ circuits; bias current density extraction method; bias supply line; circuit inductances; current distribution; external magnetic field; ground planes; inductive coupling; magnetic coupling; parallel microstrips; perpendicular microstrips; Coupling circuits; Inductance; Large scale integration; Magnetic circuits; Magnetic flux; Microstrip; SQUIDs; Strips; Superconducting magnets; Wiring; Bias supply line; RSFQ; current distribution; magnetic coupling;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.849788

Filename

1439629