Simulations show that the influence of non-ideal component characteristics, such as the tolerance of the matching resistor, the capacitance of the load input impedance, losses in the voltage leads, non-homogeneity in the voltage leads, a non-ideal on-chip connection and inductors between the Josephson junction array and the voltage leads, can be corrected for using the proposed procedures.

Impedance matching at the source side of the system, which is loaded with a high-impedance DUT, is proposed as an accurate method to mitigate these errors for frequencies up to 1 MHz. In this paper, calculations are presented to deal with these errors in terms of reflected waves. Error correction mechanisms investigated so far allow the ACJVS to be operational for frequencies up to 100â€‰kHz.

The voltage leads cause the output voltage to show deviations that scale with the frequency squared. Houtzager, ErnestĪ pulse-driven AC Josephson voltage standard (ACJVS) generates calculable AC voltage signals at low temperatures, whereas measurements are performed with a device under test (DUT) at room temperature. Mitigating voltage lead errors of an AC Josephson voltage standard by impedance matching

Atmel pro chip designer sayantan