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Displaying 401 - 425 of 3123

Broadband Rydberg Atom Based Self-Calibrating RF E-field Probe

August 16, 2014
Author(s)
Christopher L. Holloway, Joshua A. Gordon, Steven R. Jefferts, Thomas P. Heavner
We present a significantly new approach for an electric (E) field probe. The probe is based on the interaction of RF-fields with Rydberg atoms, where alkali atoms are excited optically to Rydberg states and the applied RF-field alters the resonant state of

Characterizing a Device's susceptibility to broadband signals: A case study

August 4, 2014
Author(s)
Jason B. Coder, John M. Ladbury, David Hunter
It is common for electronic devices to be tested for their susceptibility to radiated signals they may be exposed to during their normal operation. A reverberation chamber is well suited to perform this type of testing because it can expose the device

Dielectric characterization by microwave cavity perturbation corrected for non-uniform fields

July 23, 2014
Author(s)
Nathan D. Orloff, Jan Obrzut, Christian J. Long, Thomas F. Lam, James C. Booth, David R. Novotny, James A. Liddle, Pavel Kabos
The non-uniform fields that occur due to the slot in the cavity through which the sample is inserted and those due to the sample geometry itself decrease the accuracy of dielectric characterization by cavity perturbation at microwave frequencies. To

Evaluating and Verifying the Performance of the Ft. Huachuca Compact Range

July 6, 2014
Author(s)
Michael H. Francis, Ronald C. Wittmann
The National Institute of Standards and Technology (NIST) presents a plan for evaluating and verifying the performance of the refurbished Ft. Huachuca Antenna Test Facility outdoor compact range. This plan was drawn up based upon information supplied to

Evaluating the Performance of the Ft. Huachuca Compact Range

July 6, 2014
Author(s)
Michael H. Francis, Ronald C. Wittmann
The National Institute of Standards and Technology (NIST) presents a plan for evaluating and verifying the performance of the refurbished Ft. Huachuca Antenna Test Facility outdoor compact range. This plan was drawn up based upon information supplied to

650 GHz bistatic scattering measurements on human skin

June 9, 2014
Author(s)
Richard A. Chamberlin, Natalie P. Mujica-Schwahn, Erich N. Grossman
Many groups are developing submillimeter cameras that will be used to screen human subjects for improvised explosive devices (IEDs) and other threat items hidden beneath their clothing. To interpret submillimeter camera images the scattering properties

Absorptive Limiter for Frequency Selective Circuits

June 1, 2014
Author(s)
Juan C. Collado Gomez, Eduard Rocas, James C. Booth, Jordi Mateu, J. M. O'Callaghan, J. Verdu, A. Hueltes
This paper describes a novel absorptive limiter for frequency selective circuits. The proposed circuit allows the design of absorptive limiters based on a bi-state phase shifter, which is appropriate for integration into channelizing devices, such as

Traceability for Millimeter and Submillimeter-Wave Power Measurements

May 21, 2014
Author(s)
Ronald A. Ginley
The need for traceable power measurements above 110 GHz is well established for use in communications, spectral line investigation, molecular particle signature identification, material property characterization and others. There have been incremental
Displaying 401 - 425 of 3123
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