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Displaying records 31 to 40 of 87 records.
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31. Frequency-selective contrast on variably doped p-type silicon with a scanning microwave microscope
Topic: Electromagnetics
Published: 5/14/2012
Authors: Atif A. Imtiaz, Thomas M Wallis, SangHyun (Sang-Hyun) Lim, H. Tanbakuchi, H-P Huber, A. Hornung, P. Hinterdorfer, J. Smoliner, F. Kienberger, Pavel Kabos
Abstract: We report frequency dependent contrast in d(S11)/dV measurements of a variably doped p-type silicon sample in the frequency range from 2GHz to 18GHz. The measurements were conducted bys use of a scanning microwave microscope. The measurements were ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909532

32. Full-Wave Analysis of Dielectric-Loaded Cylindrical Waveguides and Cavities Using a New Four-Port Ring Network
Topic: Electromagnetics
Published: 8/31/2012
Authors: Felipe Penaranda-foix, Michael D. Janezic, Jose M. Catala-Civera, Antoni J. Canos-Marin
Abstract: In this paper, a full-wave method for the electromagnetic analysis of dielectric-loaded cylindrical and coaxial waveguides and cavities is developed. For this purpose, a new four-port ring network is proposed, and the mode-matching method is applied ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907688

33. HIGH-Q ON-CHIP MICROWAVE RESONATOR FOR SENSITIVE PERMITTIVITY DETECTION IN NANOLITER VOLUMES
Topic: Electromagnetics
Published: 6/21/2015
Authors: A Padilla, Alex Watson, Christopher L Holloway, James C Booth
Abstract: This work presents the design, fabrication and characterization results for a thick film (6µm Cu), coplanar waveguide (CPW) resonator operating at 2.2GHz with a high Q (~177), integrated with a microfluidic channel. We demonstrate detection of change ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=918320

34. Handheld Firefighter Radio Testing
Topic: Electromagnetics
Published: 6/11/2013
Authors: Catherine A Remley, William F Young, Anthony D Putorti Jr., Michelle K Donnelly
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914055

35. High-Frequency Dielectric Measurements: A Tutorial
Topic: Electromagnetics
Published: 4/1/2010
Authors: James R. Baker-Jarvis, Michael D Janezic, Donald C. DeGroot
Abstract: KNOWLEDGE of the response of materials to electromagnetic (EM) fields in the frequency range of radio frequency (RF) through terahertz (THz) is critical to numerous research projects and electronic product development activities. Electromagnetic wave ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904207

36. INTER-LABORATORY COMPARISON OF NOISE-PARAMETER MEASUREMENTS ON CMOS DEVICES WITH 0.12 um GATE LENGTH
Topic: Electromagnetics
Published: 12/1/2005
Authors: James Paul Randa, Susan L. Sweeney, Tom McKay, David K Walker, David R. Greenberg, Jon Tao, Judah Mendez, G. Ali Rezvani, John J. Pekarik
Abstract: We present results of an interlaboratory comparison of S-parameter and noise-parameter measurements performed on 0.12 {mu}m gate-length CMOS transistors. Copies of the same device were measured at three different laboratories (IBM, NIST, RFMD), and t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32120

37. Impact of RF Interference between a Passive RFID System and a Frequency Hopping Communications System in the 900 MHz ISM Band
Topic: Electromagnetics
Published: 7/25/2010
Author: Michael R Souryal
Abstract: We present experimental measurements and analysis of RF interference between a passive RFID system and a generic frequency hopping communications system in the 902 928 MHz ISM radio band. Interference in both directions is considered, RFID to communi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904764

38. Improvement in the Evaluation of a Rectangular Waveguide Microcalorimeter Correction Factora
Topic: Electromagnetics
Published: 8/29/2014
Authors: Thomas P. Crowley, Weihai Fang
Abstract: The correction factor of the National Institute of Standards and Technology‰s WR-15 (50 to 75 GHz) microcalorimeters has been re-evaluated. Use of modeled values for the reflection coefficient of a flat short and offset short instead of measured valu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915326

39. Interference and Coexistence of Wireless Systems in Critical Infrastructure
Series: Technical Note (NIST TN)
Report Number: 1885
Topic: Electromagnetics
Published: 7/7/2015
Authors: Galen H. Koepke, William F Young, John M Ladbury, Jason B Coder
Abstract: We examine interference and coexistence testing issues, test methods, and the need to update and develop new test methodologies related to the use of wireless devices in critical infrastructure systems. A case study on interference is presented ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=917616

40. International Comparison of Noise-Temperature Measurements at 2, 4, and 12 GHz
Topic: Electromagnetics
Published: 7/1/1998
Authors: James Paul Randa, J. Achkar, F. I Buchholz, T. Colard, D. Schubert, M. Sinclair, John Rice, G. S. Williams
Abstract: We report results of a recent international comparison of thermal noise-power measurements, performed under the auspices of CIPM/CCE. The noise temperatures of two solid-state sources with GPC-7 connectors were measured at 2, 4, and 12 GHz. All ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=24272



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