High linearity voltage response differential cell

A cell consisting of two differentially connected parallel arrays are studied in detail, and conditions for high linearity voltage response to magnetic signal are summarized. Specifically, in contrast to an ideal case of zero coupling inductances, the realistic cell has to be based on regular arrays rather than parallel Superconducting Quantum Interference Filters (SQIFs). Optimization of the cell parameters and balancing the load impact are analyzed and discussed.