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Displaying 701 - 725 of 1414

Peridynamic Simulation of Electromigration

January 1, 2008
Author(s)
David T. Read, Walter Gerstle, Stewart Silling, Vinod K. Tewary, Richard Lehoucq
A theoretical framework, based upon the peridynamic model, is presented for analytical and computational simulation of electromigration. The framework allows four coupled physical processes to be modeled simultaneously: mechanical deformation, heat

Sources of Uncertainty for Near-Field Measurements

November 11, 2007
Author(s)
Michael H. Francis, Ronald C. Wittmann
We discuss the sources of uncertainty in near-field measurements and their impact on far-field antenna parameters. The methods of estimating these uncertainties can be considered in three broad categories: theoretical estimation (analytical), computer

Free Space Antenna Factors through the Use of Time-Domain Signal Processing

September 1, 2007
Author(s)
Dennis G. Camell, Robert Johnk, David R. Novotny, Chriss A. Grosvenor
This paper demonstrates the usefulness of time-domain processing to determine free-space antenna factors (FSAF) for electromagnetic compatibility (EMC) antennas. Our procedures are explained and data are provided for frequencies from 30 MHz to 9GHz. We

Key nonlinear measurement events

August 1, 2007
Author(s)
Catherine A. Remley, Dominique Schreurs
In this article, we describe two engineer-friendly events - the Automatic RF Techniques Group (ARFTG) Nonlinear Measurements Workshop and the Nonlinear Vector Network Analyzer (NVNA) Users' Forum - designed to let participants learn about and discuss

Free Space Antenna Factors through the use of Time-Domain Signal Processing

July 8, 2007
Author(s)
Dennis G. Camell, Robert T. Johnk, David R. Novotny, Chriss A. Grosvenor
This paper demonstrates the usefulness of time domain processing to determine free-space antenna factors,FSAF, for EMC antennas. Procedures are explained and data is provided from 30 MHz to 9 GHz. We investigate time gating of dense frequency packed

RFID Devices and Systems in Homeland Security Applications

July 1, 2007
Author(s)
Kate Remley, Jeffrey R. Guerrieri, Dylan Williams, David R. Novotny, Anthony B. Kos, Nelson Bryner, Nader Moayeri, Michael Souryal, Kang Lee, Steven Fick
This article reports on activities being carried out by the National Institute of Standards and Technology to ensure secure, reliable use of Radio-Frequency Identification (RFID) technology in homeland security and public safety applications. These

Dielectric polarization evolution equations and relaxation times

May 25, 2007
Author(s)
James R. Baker-Jarvis, Billy F. Riddle, Michael D. Janezic
In this paper we develop a model that can describe broadband dielectric response, and includes frequency-dependent loss and the effects of the local electric field. The model is based on a correlation-function approach that we previously developed using
Displaying 701 - 725 of 1414
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