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Electronics

Sensors

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Displaying 326 - 350 of 713

AC Josephson Voltage Standard: Progress Report

April 1, 1997
Author(s)
Clark A. Hamilton, Charles J. Burroughs, Samuel Benz, Joseph R. Kinard Jr.
Progress toward a Josephson voltage standard for fast dc measurements and accurate ac waveform systhesis is described. A superconductor-normal-superconductor (SNS) junction process is used to make 5 mA critical current arrays with up to 32 768 junctions

Progress Toward an AC Josephson Voltage Standard

June 1, 1996
Author(s)
Clark A. Hamilton, Charles J. Burroughs, Samuel P. Benz
Progress toward a Josephson voltage standrd for fast dc measurements and ac waveform synthesis is described, including a version with SNS junctions operated at 11 GHz. A bias control circuit that achieves millampere drive capability, transient suppression

A Model of Voltage-Dependent Dieletric Losses for Ferroelectric MMIC Devices

December 31, 1995
Author(s)
J. F. Scott, J. Price, James A. Beall, Ronald H. Ono, C. A. Paz de Araujo, L. D. McMillian
The use of high-dielectric films for microwave devices, especially phased-array radar systems, in the tens of GHz regime requires very low-loss (0.01 to 0.1) films. Unfortunately most ferroelectrics have losses that diverge (greater than unity) in this
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