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Displaying records 21 to 30 of 51 records.
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21. International Comparison of Thermal Noise-Temperature Measurements at 2, 4 and 12 GHz
Topic: Electromagnetics
Published: 4/1/1999
Authors: James Paul Randa, Joseph Paul Rice, J. Achkar, T. Colard, M. Sinclair, G. Silvia Williams, F. IM Bucholz, D. Schubert
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=20887

22. International Comparison, Final Summary Report
Topic: Electromagnetics
Published: 11/1/2000
Author: James Paul Randa
Abstract: An international comparison of noise temperature of coaxial (GPC-7) sources at 2 GHz, 4 GHz and 12 GHz has been completed. Participating laboratories included the Physikalisch-Technische Bundesanstalt (PTB); the Bureau National de Metrologie-Laborato ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=29776

23. MIMO Capacity in 2-D and 3-D Isotropic Environments
Topic: Electromagnetics
Published: 5/21/2013
Authors: Ryan J. Pirkl, Catherine A Remley
Abstract: We analyze the distribution of MIMO channel capacity for different antennas in 2-D and 3-D statistically isotropic environments. These represent possible test environments that may be generated by multi-probe anechoic and reverberation chambers, ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910357

24. Measurement of orbital asymmetry and strain in Co^d90^Fe^d10^/Ni multilayers and alloys: Origins of perpendicular anisotropy
Topic: Electromagnetics
Published: 2/13/2013
Authors: Justin M Shaw, Hans Toya Nembach, Thomas J Silva
Abstract: We use broadband ferromagnetic resonance spectroscopy and x-ray diffraction to investigate the fundamental origin of perpendicular anisotropy in Co^d90^Fe^d10^/Ni multilayers. By careful evaluation of the spectroscopic {I}g{/I}-factor, we determine ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913103

25. Microwave Characterization of Transparent Conducting Films
Topic: Electromagnetics
Published: 5/26/2011
Authors: Jan Obrzut, Oleg A Kirillov
Abstract: The high frequency conductivity of thin metallic and graphitic nano-films attracts interest due to many potential applications in spin electronics, electromagnetic shielding, flexible antennas, displays, and solar cells. The surface morphology of thi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907453

26. Monte Carlo Simulation of Noise Parameter Uncertainties
Topic: Electromagnetics
Published: 11/1/2002
Authors: James Paul Randa, Wojciech Wiatr
Abstract: We present results for uncertainties in noise-parameter measurements, obtained using a Monte Carlo simulation of the measurements. Sets of data were generated to simulate measurements on a low-noise amplifier, with given uncertainties in the underlyi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=12549

27. Multiport Noise Characterization and Differential Amplifiers
Topic: Electromagnetics
Published: 6/1/2000
Author: James Paul Randa
Abstract: I address the issue of the definition and measurement of noise figure and parameters to characterize multiport devices, particularly differential amplifiers. A parameterization in terms of the noise matrix appears to be the most practical. The nois ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=24909

28. NIST Handbook 150-11, NVLAP Electromagnetic Compatibility and Telecommunications
Series: Handbook (NIST HB)
Report Number: 150-11
Topic: Electromagnetics
Published: 4/25/2013
Authors: Bethany E Hackett, Bradley W Moore, Dennis G. Camell
Abstract: NIST Handbook 150-11, NVLAP Electromagnetic Compatibility and Telecommunications, presents the technical requirements and guidance for the accreditation of laboratories under the NVLAP Electromagnetic Compatibility and Telecommunications (ECT) LAP. I ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913586

29. NIST's High Frequency Metrology Program: Current Capabilities and Future Directions
Topic: Electromagnetics
Published: 3/31/2011
Author: Ronald A Ginley
Abstract: There are several core areas that are covered by the NIST microwave metrology services. These include thermal noise, power, scattering-parameters (s-parameters), field strength and antenna parameters. The rapid change in technology and the current ec ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907842

30. Noise Characterization of Multiport Amplifiers
Topic: Electromagnetics
Published: 10/1/2001
Author: James Paul Randa
Abstract: I address the issue of the definition and measurement of noise figure and parameters to characterize multiport devices, particularly differential amplifiers. A parameterization in terms of the noise matrix appears to be the most practical. the noise ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=5219



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