Abstract
We describe the design, construction, and performance of an electronic analog of a dc SQUID (Superconducting Quantum Interference Device). This SQUID simulator is characterized by bandwidth exceeding 1.5 MHz and low noise consistent with the performance of modern de SQUID devices. The flux modulation current to output voltage transfer function and the input and output impedances are similar to those of common SQUID designs. We will present results on the performance of this simulator used with SQUID control electronics having flux modulation frequencies up to 500 MHz.
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