Recent
Noise Presentations
"Variable Termination Unit for Noise-Parameter Measurement"
D. Gu, D.K. Walker, and J. Randa, Conference on Precision Electromagnetic Measurements (CPEM-2008), Broomfield, CO, June, 2008.
"Simulations of Noise-Parameter Verification Using Cascade with Isolator or Mismatched Transmission Line"
J. Randa, K. Wong, and R. Pollard, 70th ARFTG Microwave Measurements Conference; Tempe, AZ; Nov. 30, 2007.
"Standards Development for Remote Sensing at Microwave and Terahertz Frequencies"
J. Randa, E. Gerecht, D.K. Walker*, A. Cox, D. Gu, L. You, and R.L. Billinger, 2007 CALCON Technical Conference; Logan, UT; September 11, 2007.
"Noise Measurements and Remote-Sensing Radiometry (at NIST)"
J. Randa, International Conference on Measurement and Metrology (ICMM-2007); Beijing, China; Sept. 6, 2007.
"Standards Development for Remote Sensing at Microwave and Terahertz Frequencies"
J. Randa, E. Gerecht, D.K. Walker, A. Cox, D. Gu, L. You, and R.L. Billinger, International Conference on Measurement and Metrology (ICMM-2007); Beijing, China; Sept. 5, 2007.
"Thermal Noise Measurements"
J. Randa, NIST/ARFTG Short Course, Broomfield, CO, November 2006.
"Proposed Development of a National Microwave Brightness-Temperature Standard"
J. Randa, A.E. Cox, and D.K. Walker, International Geoscience and Remote Sensing Symposium (IGARSS-2006), Denver, August 2006.
"Terahertz Radiometer Design for Traceable Noise-Temperature Measurements"
E. Gerecht, D. Gu, J. Randa, D.K. Walker, and R.L. Billinger, Conference on Precision Electromagnetic Measurements (CPEM-2006), Torino, Italy, July 2006.
"On-Wafer Noise-Parameter Measurements at NIST"
D.K. Walker and J. Randa, Conference on Precision Electromagnetic Measurements (CPEM-2006), Torino, Italy, July 2006.
"Reverse Noise Measurement and Its Use in Device Characterization"
J. Randa, T. McKay, S.L. Sweeney, D.K. Walker, L. Wagner, D.R. Greenberg, J. Tao, and G.A. Rezvani, Radio Frequency Integrated Circuits (RFIC) Symposium, San Francisco, June 2006.
"On-Wafer Noise-Parameter Measurements and Uncertainties at NIST"
J. Randa and D.K. Walker, Workshop on Noise Measurement and Modeling for CMOS, RFIC/IMS, San Francisco, June 2006.
"On-Wafer Noise-Parameter Measurements, Checks, and Uncertainties at NIST"
J. Randa, International Conference on Microelectronic Test Structures (ICMTS), Austin, TX, March 2006.
"Interlaboratory Comparison of Noise-Parameter Measurements on CMOS Devices with 0.12 um Gate Length"
J. Randa, S.L. Sweeney, T. McKay, D.K. Walker, D.R. Greenberg, J. Tao, J. Mendez, G.A. Rezvani, and J.J. Pekarik, 66th ARFTG Conference, Washington, DC, December 2005.
"Thermal Noise Measurements"
J. Randa, NIST/ARFTG Short Course, Washington, DC, November 2005.
"Precision Measurement of Amplifier Noise Temperatures Below 5 K"
J. Randa, E. Gerecht, D. Gu, and R.L. Billinger, Division Seminar, NIST, Boulder, CO; August 2005.
"Standard
Radiometers and Targets for Microwave Remote Sensing"
J. Randa,
A.E. Cox, D.K. Walker, M. Francis, J. Guerrieri, and K.
MacReynolds; IGARSS-2004; Anchorage, AK; September 2004.
"Errors Due
to the Reflectivity of Calibration Targets"
J. Randa, D.K. Walker,
A.E. Cox, and R.L. Billinger; IGARSS-2004; Anchorage, AK;
September 2004.
"Linking
Microwave Remote-Sensing Measurements to Fundamental Noise Standards"
J. Randa, D.K. Walker,
M. Francis, K. MacReynolds, A. Cox, and J. Guerrieri;
CPEM-2004; London, UK; June 2004.
"Development of
Remote-Sensing Microwave Radiometer Calibration Methods and Tools at
NIST,"
D. Walker, J. Randa,
R.Billinger, and A.E. Cox; URSI National Conference; Boulder, CO;
January 2004.
"Thermal
Noise Measurements,"
J. Randa,
NIST/ARFTG Short Course, Boulder, CO, December 2003.
."Microwave Radiometry and
Noise Standards at NIST,"
J. Randa, RF Technology
Division Seminar, NIST-Boulder, April 2003.
"Thermal
Noise Measurements,"
D. Walker,
NIST/ARFTG Short Course, Washington, DC, November 2002;
J. Randa, NIST/ARFTG Short
Course, San Diego, November 2001.
"NIST Project
on Standard Terminology for Microwave Radiometry," (1.2 MB)
J. Randa, Second
International Workshop on Microwave Radiometer Calibration, Barcelona,
October 2002.
"Tunnel
Diode Detector Nonlinearity Characterization and Minimization," (0.9MB)
D. Walker & J.
Piepmeier, Second International Workshop on Microwave Radiometer
Calibration, Barcelona, October, 2002..
"Simulations
of Noise-Parameter Uncertainties," (1.5
MB)
J. Randa, International
Microwave Symposium, Seattle, June 2002.
"Noise-Parameter
Uncertainties from Monte Carlo Simulations,"
J. Randa and W. Wiatr, 2001
British Electromagnetic Measurement Conference, Harrogate, November
2001.
"Noise-Temperature
Measurements at NIST," (7.7 MB)
J. Randa, First
International Workshop on Microwave Radiometer Calibration, Univ.
Maryland, October 2000.
"Multiport
Noise Characterization and Differential Amplifiers,"
J. Randa, 55th
ARFTG Conference, Boston, June 2000..
"NFRad—A
Review of the new NIST noise measurement system," (10.7 MB)
C. Grosvenor, J. Randa, and
R.L. Billinger, 55st ARFTG Conference, Boston, June 2000
"Underlying Principles, Design,
Construction, Test, and Uncertainties of the New NIST Coaxial
Radiometer NFRad,"
J. Randa, Lectures at Productivity
and Standards Board, Singapore, May 2000.
Part I.
Theory and Background
Part II.
NFRad Design and Construction
Part II
Photos (18.1 MB)
Part III.
Operation, Testing, and Uncertainties
Back
To Main Noise Page
|
