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Topic Area: Microwave Measurement Services
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Displaying records 71 to 80 of 88 records.
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71. SIMULATIONS OF NOISE-PARAMETER VERIFICATION USING CASCADE WITH ISOLATOR OR MISMATCHED TRANSMISSION LINE
Topic: Microwave Measurement Services
Published: 11/30/2007
Authors: James Paul Randa, Ken Wong, Roger Pollard
Abstract: Results are presented for simulations of a verification process for noise-parameter measurements. The verification process consists of first measuring separately both a passive device and the amplifier or transistor of interest (the DUT) and then mea ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32814

72. Scattering of microwaves in thin metallic films near the metal - non-metal transition
Topic: Microwave Measurement Services
Published: 9/15/2014
Author: Jan Obrzut
Abstract: We present measurements demonstrating significant scattering of microwaves in a thin metal films near the metal ‹ non-metal percolation transition. Gold films 3 nm to 12 nm thick were characterized using patterned coplanar waveguides over a frequenc ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916024

73. Simulations of Noise-Parameter Uncertainties
Topic: Microwave Measurement Services
Published: 6/7/2002
Author: James Paul Randa
Abstract: This paper reports results for uncertainties obtained using a Monte Carlo simulation of noise-parameter measurements. The simulator permits the computation of the dependence of the uncertainty in the noise parameters on uncertainties in the underlyin ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=24469

74. Sources of Error in Coplanar Waveguide TRL Calibrations
Topic: Microwave Measurement Services
Published: 12/1/1999
Authors: Raian K. Kaiser, Dylan F Williams
Abstract: This paper explores the impact of five sources of systematic error on coplanar waveguide thru-reflect-line calibrations.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=2573

75. Stability Measurements on Noise Sources
Topic: Microwave Measurement Services
Published: 4/1/2001
Authors: James Paul Randa, L. A. Terrell, Lawrence P. Dunleavy
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=3392

76. StatistiCAL Vector-Network-Analyzer Calibration Software
Topic: Microwave Measurement Services
Published: 6/1/2003
Authors: Dylan F Williams, Jack Wang, Uwe Arz
Abstract: StatistiCAL is a new freeware package for calibrating vector network analyzers (VNAs) developed at the National Institute of Standards and Technology (NIST).
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=31335

77. Switched-Coupler Measurements for High Power FR Calibrations
Topic: Microwave Measurement Services
Published: 3/1/2000
Author: J. W. Allen
Abstract: Calibration of RF power sensors at levels greater than 10 mW and uncertainties on the order of 2 % need not require complex calorimetric methods. Using a series of cascaded directional couplers makes it possible to compare a high-power RF sensor agai ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=10864

78. Temperature Control of Microfluidic Systems by Microwave Heating
Topic: Microwave Measurement Services
Published: 5/5/2005
Authors: Siddarth Sundaresan, Brian J. Polk, Darwin R Reyes-Hernandez, M Rao, Michael Gaitan
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906336

79. The 30/60 MHz Tuned Radiometer - The NIST System for Noise Temperature Measurements
Series: Technical Note (NIST TN)
Report Number: 1525
Topic: Microwave Measurement Services
Published: 5/1/2002
Authors: Chriss A. Grosvenor, Robert L Billinger
Abstract: The NIST Noise Project has completed reconstruction of their 30/60 MHz tuned, coaxial (Type N) radiometer system. This system is used at low frequencies where isolators are impractical to incorporate. Without isolators, the ambient and cryogenic stan ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=14689

80. The Automatic Radio Frequency Techniques Group Conference on Characterization of Broadband Telecommunications Components and Systems
Series: Journal of Research (NIST JRES)
Topic: Microwave Measurement Services
Published: 12/1/1997
Authors: Roger Marks, G. D. Alley
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=28437



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