High Linearity Voltage Response Parallel-Array Cell

11th European Conference on Applied Superconductivity

Kornev, V.^1 ; Kolotinskiy, N.^1 ; Skripka, V.^1 ; Sharafiev, A.^1 ; Soloviev, I.^1 ; Mukhanov, O.^2

Lomonosov Moscow State University, Leninskie Gory 1, Moscow

119991, Russia^1

Hypres, Inc., 175 Clearbrook Road, Elmsford

NY

10523, United States^2

关键词: High dynamic range;    High linearity;    Interference filters;    Linear voltages;    Magnetic signals;    Parallel arrays;    Voltage response;    Voltage transfer function;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/507/4/042018/pdf
DOI  :  10.1088/1742-6596/507/4/042018

来源: IOP

【 摘 要 】

We studied in detail a cell consisting of two parallel SQUID arrays or two parallel superconducting interference filters (SQIFs) connected differentially with the goal of achieving highly linear voltage response to magnetic signal. In these different cell designs, we accounted for realistic values of coupling inductances in contrast to limiting case of vanishing inductances considered earlier. We found that a cell based on regular parallel SQUID arrays produces higher linearity as compared to the cell based on SQIFs. This high-linearity cell can be used for realizing Superconducting Quantum Arrays (SQA) capable of providing a broadband, highly-linear magnetic field-to-voltage transfer function and high dynamic range.