By Topic

A Josephson-array calculable-waveform generator

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Christian, L.A. ; Meas. Stand. Lab. of New Zealand, IRL, Lower Hutt, New Zealand ; Millar, K.J.H.

This paper proposes a new method for using a Josephson array to create a voltage waveform with a root-mean-square value calculable to better than 2 in 106 at frequencies below 50 Hz. A novel method of reliably switching the dc voltage from one known voltage step to another at precisely defined time intervals is investigated. In this method, transients in the microwave voltage driving the array are used to induce switching between steps. We consider two possible implementations of this concept. The first is for an array similar to that used in conventional dc voltage standards. The second uses the binary sequence of individually biased arrays introduced by Hamilton et al [1995]. Computer simulation and theoretical analysis are used to demonstrate that the uncertainties in switching times are potentially limited only by the speed of the available microwave attenuators, which is currently of the order of a nanosecond

Published in:

Instrumentation and Measurement, IEEE Transactions on  (Volume:47 ,  Issue: 2 )