You searched on:
Author: Dylan Williams
Displaying records 1 to 10 of 149 records.
Resort by: Date / Title
1. Baseband Corrections for Precision Millimeter Wave Signal Measurements
Catherine A Remley, Saeed Farsi, Dominique Schreurs, Dylan F Williams, Paul D Hale, Chih-Ming Wang
2. A Precision Millimeter-Wave Modulated-Signal Source
Catherine A Remley, Paul D Hale, Dylan F Williams, Chih-Ming Wang
We develop and characterize a modulated-signal source for use at millimeter-wave frequencies. Components within the source are phase locked by a 10 GHz reference source to minimize drift and improve synchronization. The complex frequency response of ...
3. Sequential Estimation of Timebase Corrections for an Arbitrarily Long Waveform
Chih-Ming Wang, Paul D Hale, Jeffrey A Jargon, Dylan F Williams, Catherine A Remley
We present a procedure for correcting the timebase distortion and jitter of temporal waveforms of arbitrary lengths. This is achieved by estimating the timebase distortion and jitter sequentially with overlapping measurements and using the informatio ...
4. A statistical study of de-embedding applied to eye diagram analysis
Paul D Hale, Jeffrey A Jargon, Chih-Ming Wang, Brett Grossman, Matthew Claudius, Jose Torres, Andrew M Dienstfrey, Dylan F Williams
We describe a stable method for calibrating digital waveforms and eye diagrams using the measurement system response function and its regularized inverse. The function describing the system response includes the response of the oscilloscope and any ...
5. Comparison of Sub-Millimeter-Wave Scattering-Parameter Calibrations with Imperfect Electrical Ports
Dylan F Williams
We develop a metric to quantify the accuracy with which measured scattering parameters can be cascaded. We use the metric to compare four rectangular-waveguide calibration strategies at sub-millimeter wavelengths that correct for electrical-port impe ...
6. On-Chip Security Using Electromagnetic Analysis
Grant/Contract Reports (NISTGCR)
James Schaffner, Dylan F Williams
In this report we describe a test bed designed to assess the vulnerabilities of security microcontrollers to electromagnetic monitoring, and use the test bed to show that it is indeed possible to gather more local information from electromagnetic mon ...
7. Use of Electronic Calibration Units for Vector-Network-Analyzer Verification
Dylan F Williams, Arkadiusz C. (Arkadiusz) Lewandowski, Denis X LeGolvan, Ronald A Ginley, Chih-Ming Wang, Jolene D Splett
We present measurements indicating that electronic calibration units are stable enough to be used in place of mechanical vector-network-analyzer verification artifacts. This enables a new fully automated approach to verifying microwave vector-network ...
8. Identifying RF Identification Cards from Measurements of Resonance and Carrier Harmonics
Henry Romero, Catherine A Remley, Dylan F Williams, Chih-Ming Wang, Timothy X. Brown
We show that careful measurements of the unloaded
resonant frequency and quality factor of radio frequency
identification proximity cards allow identification of different
card models and, for the set of cards we studied, identification
with mini ...
9. Electro-optic sampling for traceable high-speed electrical measurements
Paul D Hale, Dylan F Williams
We will describe how the complex frequency response of a high-speed photodiode is calibrated by use of electro-optic sampling. Our uncertainty analysis includes a unique covariance-matrix based method that allows us to transform uncertainties between ...
10. Measurement Bandwidth Extension Using Multisine Signals: Propagation of Error
Catherine A Remley, Dominique Schreurs, M. Myslinski, Dylan F Williams
We describe a post-processing technique that can extend the effective measurement bandwidth of narrowband vector receivers by phase aligning overlapping measurements. The method requires only knowledge of the desired phases of a periodic, multisine e ...