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NIST Unveils Status of PIM Testing

January 1, 2000
Author(s)
Jeffrey Jargon, Donald C. DeGroot
In response to requests by U.S. industry and members of the International Electrotechnical Commision, the National Institute of Standards and Technology initiated a passive intermodualtion measurement comparison for the U.S. wireless industry. The goal of

Equivalent Circuit Models for Coaxial OSLT Standards

December 1, 1999
Author(s)
Donald C. DeGroot, K. L. Reed, Jeffrey Jargon
We use a general description of transmission lines to develop analytic descriptions for offset OSLT (Open-Short-Load-Thru) standards used to calibrate vector network analyzers.

Nose-to-Nose Response of a 20-GHz Sampling Circuit

December 1, 1999
Author(s)
Dylan F. Williams, Catherine A. Remley, Donald C. DeGroot
We use SPICE simulations to determine a response function of a two-diode 20-GHz sampling circuit. We explore the validity of the SPICE simulations in a variety of operational conditions and examine differences between the actual response of an impedance

On-Wafer Measurements of Noise Temperature

December 1, 1999
Author(s)
James P. Randa, Robert L. Billinger
The NIST Noise Project has developed the theoretical formalism and experimental methods for performing accurate noise-temperature measurements on wafer. This report summarizes the theoretical formulation and describes the design, methods, and results of

Broadband Electromagnetic Field Sensors with Electro-Optical Links

November 1, 1999
Author(s)
Keith D. Masterson, Motohisa Kanda, David R. Novotny
In this paper, we review the system design, antenna structures, and optoelectronic components that can be used to accurately measure electromagnetic (EM) fields at frequencies up to 100 GHz, in support of the technologies of telecommunications, materials

Linear Dipole Response in a Reverberation Chamber

November 1, 1999
Author(s)
David A. Hill
A new spatial correlation function is derived for the axial electric field and is compared with the previously known spatial correlation function for the total electric field. The new correlation function is used to determine the average power received by

New Antenna Positioner Improves NIST's Capabilities

October 1, 1999
Author(s)
G. Kangiser, Dennis G. Camell
Antenna and electric field probe calibration requires precise positioning and movement throughout a known RF field Measurements are usually made in an anechoic chamber. A robotic six axis antenna positioner was needed that would work in this environment at
Displaying 976 - 1000 of 1580
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