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11. Boundary Effects on the Determination of the Effective Parameters of a Metamaterial from Normal Incidence Reflection and Transmission
Topic: Electromagnetics
Published: 6/1/2011
Authors: Sung Kim, Edward E. Kuester, Christopher L Holloway, James R. Baker-Jarvis, Aaron D. Scher
Abstract: This paper presents a method for the determination of the effective electromagnetic parameters of a metamaterial, taking boundary effects at the interfaces between a conventional material and metamaterial into account. In the technique presented here ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904074

12. 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

13. Fluid interactions with metafilm/metasurfaces for tuning, sensing, and microwave assisted chemical processes
Topic: Electromagnetics
Published: 5/25/2011
Authors: Joshua A Gordon, Christopher L Holloway, James C Booth, James R. Baker-Jarvis, David R Novotny, Sung Kim, Yu Wang
Abstract: In this paper we demonstrate tunability of a metafilm, which is the two-dimensional equivalent of a metamaterial, also referred to as a metasurface, by changing the permittivity in a micro-fluidic channel that interacts with the metafilm. Numerical s ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907703

14. 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

15. Quantitative Permittivity Measurements of Nanoliter Liquid Volumes in Microfluidic Channels to 40 GHz.
Topic: Electromagnetics
Published: 12/1/2010
Authors: James C Booth, Nathan Daniel Orloff, Jordi Mateu, James A Beall, Matthew Rinehart
Abstract: We describe the design, fabrication, and evaluation of a new on-wafer measurement platform for the rapid, quantitative determination of the complex permittivity of nL fluid volumes over the frequency range from 10 MHz - 40 GHz. Our measurement platfo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903958

16. Quantitative Permittivity Measurements of Nanoliter Liquid Volumes in Microfluidic Channels to 40 GHz
Topic: Electromagnetics
Published: 12/1/2010
Authors: James C Booth, Nathan Daniel Orloff, Jordi Mateu, Michael D Janezic, Matthew Rinehart, James A Beall
Abstract: We describe the design, fabrication, and evaluation of a new on-wafer measurement platform for the rapid, quantitative determination of the complex permittivity of nL fluid volumes over the frequency range from 10 MHz - 40 GHz. Our measurement platf ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=33046

17. Thermal Noise and Noise Measurements a 2010 Update
Topic: Electromagnetics
Published: 10/1/2010
Authors: Anthony R Kerr, James Paul Randa
Abstract: 1. Introduction 2. Noise Temperature as a Measure of Noise Power 3. Available Noise Power from a Resistor 4. The Zero-Point Noise Term and the Minimum Noise of an Amplifier 5. Noise-Temperature Standards and Measurement of One-Port Noise Sources ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904009

18. COMPARISON OF EXPERIMENTAL TECHNIQUES FOR EVALUATING THE CORRECTION FACTOR OF A RECTANGULAR WAVEGUIDE MICROCALORIMETER
Topic: Electromagnetics
Published: 7/30/2010
Authors: Thomas P Crowley, Xiaohai Cui
Abstract: We have evaluated the correction factor of a WR-15 (50 to 75 GHz) rectangular waveguide calorimeter using four different techniques. The four methods are in agreement. Our initial uncertainty analysis indicates that the technique with the lowest unce ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904710

19. REFLECTIVITY STUDIES OF PASSIVE MICROWAVE CALIBRATION TARGETS AND ABSORPTIVE MATERIALS
Topic: Electromagnetics
Published: 7/30/2010
Authors: Dazhen Gu, Amanda Cox, Derek Anderson Houtz, David K Walker, James Paul Randa, Robert L Billinger
Abstract: We report the characterization of blackbody reflections as a part of the recent progress on the development of brightness standards for microwave remote sensing at National Institute of Standards and Technology (NIST).Three blackbody targets at varia ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906017

20. 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