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Displaying 1 - 25 of 1522

Measuring the Impact of Beamwidth on the Correlation Distance of 60 GHz Indoor and Outdoor Channels

March 22, 2021

Author(s)

Aidan Hughes, Sung Yun Jun, Camillo Gentile, Derek Caudill, Jack Chuang, Jelena Senic

Due to high antenna directionality and channel sparseness, millimeter-wave receivers will detect much less multipath then their microwave counterparts

Josephson Microwave Sources Applied to Quantum Information Systems

December 18, 2020

Author(s)

Adam J. Sirois, Manuel C. Castellanos Beltran, Anna E. Fox, Samuel P. Benz, Peter F. Hopkins

Quantum computers with thousands or millions of qubits will require a scalable solution for qubit control and readout electronics. Colocating these electronics

Calibration of Ray-Tracing with Diffuse Scattering against 28-GHz Directional Urban Channel Measurements

November 18, 2020

Author(s)

Camillo Gentile, Jelena Senic, Chiehping Lai, Derek Caudill, Jack Chuang, Nada Golmie

This paper describes the calibration of the Volcano ray-tracing engine against channel measurements collected in an urban environment with a 28 GHz directional

Noise Influence on Scattering-Parameter Measurements

November 4, 2020

Author(s)

Dazhen Gu, Jeffrey A. Jargon, Matthew J. Ryan, Anouk Hubrechsen

We present a general model of noise-influenced scattering (S) parameter measurements performed by a vector network analyzer (VNA). The residual error of the S

Note: A Radio Frequency Voltage-Controlled Current Source for Quantum Spin Manipulation

October 19, 2020

Author(s)

Daniel S. Barker, Alessandro Restelli, James A. Fedchak, Julia K. Scherschligt, Stephen P. Eckel

We present a design for a wide-bandwidth, voltage-controlled current source that is easily integrated with radiofrequency magnetic field coils. Our design uses

Josephson Arbitrary Waveform Synthesizer as a Reference Standard for the Calibration of Lock-in Amplifiers

August 24, 2020

Author(s)

Dimitrios Georgakopoulos, Ilya F. Budovsky, Samuel P. Benz

We have extended the voltage range of the Josephson arbitrary waveform synthesizer from 1 mV down to 1 μV at frequencies from 60 Hz to 1 kHz to calibrate

Blind Calibration of Phase Drift in Millimeter-Wave Channel Sounders

June 11, 2020

Author(s)

Jack Chuang, Jelena Senic, Chunmei Liu, Camillo A. Gentile, Sung Yun Jun, Derek C. Caudill

Millimeter-wave channel sounders are much more sensitive to phase drift than their microwave counterparts by virtue of shorter wavelength. This matters when

Blind Measurement of Receiver System Noise

June 5, 2020

Author(s)

Daniel G. Kuester, Adam J. Wunderlich, Duncan A. McGillivray, Dazhen Gu, Audrey Puls

Tightly packaged receive systems pose a challenge for noise measurements. The only available receiver outputs are often user data: link benchmark or diagnostic

Application of Broadband RF Metrology to Integrated Circuit Interconnect Reliability Analyses: Monitoring Copper Interconnect Corrosion in 3D-ICs

June 4, 2020

Author(s)

Papa K. Amoah, Jesus Perez, Yaw S. Obeng

In this paper, we describe the development, and application, of a suite of high-frequency electromagnetic wave (RF) based techniques to probe material and

A Multi-Band Rydberg-Atom Based Receiver/Antenna: AM/FM Stereo Reception

April 2, 2020

Author(s)

Christopher L. Holloway, Matthew T. Simons, Joshua A. Gordon

With the re-definition of the International System of Units (SI) that occurred in October of 2018, there has recently been a great deal of attention in the

A simple improvement for permanent magnet systems for Kibble balances: More flat field at almost no cost

March 19, 2020

Author(s)

Stephan Schlamminger, Shisong Li

Permanent magnets together with yokes to concentrate the magnetic flux into a cylindrical air- gap are widely employed in Kibble balances. These experiments

On the Cross-Application of Calibrated Pathloss Models using Area Features: Finding a Way to Determine Similarity Between Areas

February 1, 2020

Author(s)

Jiayi Zhang, Camillo A. Gentile, Wesley D. Garey

Pathloss-model calibration is the practice of refining the nominal parameters of a model according to measurement samples collected in a specific area. It is a

Field-Only Surface Integral Equations: Scattering from a Perfect Electric Conductor

February 1, 2020

Author(s)

Qiang Sun, Evert Klaseboer, Alexey J. Yuffa, Derek Y. Chan

A field-only boundary integral formulation of electromagnetics is derived without the use of surface currents that appear in the Stratton--Chu formulation. For

Time Stability of Untethered Electronic Switched MIMO Millimeter-Wave Channel Sounders

January 24, 2020

Author(s)

Peter B. Papazian, Ruoyu Sun

Time stability measurement methods applicable to millimeter wave channel sound are presented using standard parameters used for clock stability. Novel methods

Synaptic weighting in single flux quantum neuromorphic computing

January 22, 2020

Author(s)

Michael L. Schneider, Christine A. Donnelly, Ian W. Haygood, Alex Wynn, Stephen E. Russek, Manuel C. Castellanos Beltran, Paul D. Dresselhaus, Peter F. Hopkins, Matthew R. Pufall, William H. Rippard

Josephson junctions act as a natural spiking neuron-like device for neuromorphic computing. By leveraging the advances recently demonstrated in digital single

Field Compressed Sensing

January 17, 2020

Author(s)

Anthony B. Kos, Fabio C. Da Silva, Jason B. Coder, Craig W. Nelson, Grace E. Antonucci, Archita Hati

Imaging solutions based on wave scattering seek real-time performance, high dynamic range, and spatial accuracy at scales spanning from nanometers to thousands

Optimal Series Resistors for On-Wafer Calibrations

November 8, 2019

Author(s)

Jasper A. Drisko, Richard A. Chamberlin, James C. Booth, Nathan D. Orloff, Christian J. Long

The series resistor is a common on-wafer device typically used in the series-resistor calibration and for estimating the capacitance per unit length of coplanar

Embedding a Rydberg Atom-Based Sensor into an Antenna for Phase and Amplitude Detection of Radio Frequency Fields and Modulated Signals

October 22, 2019

Author(s)

Christopher L. Holloway, Matthew T. Simons, Abdulaziz H. Haddab, Joshua A. Gordon, David R. Novotny

We demonstrate a Rydberg atom-based sensor embedded in a parallel-plate waveguide (PPWG) for amplitude and phase detection of a radio-frequency (RF) electric

Nanobolometer with ultralow noise equivalent power

October 11, 2019

Author(s)

Roope J. Kokkoniemi, Joonas Govenius, Visa Vesterinen, Russell Lake, A M. Gunyho, K-Y Tan, S Simbierowicz, Leif Gronberg, J Lehtinen, M Prunnila, Juha Hassel, Antti Lamminen, O P. Saira, Mikko Mottonen

Since the introduction of bolometers more than a century ago, they have been used in various applications ranging from chemical sensors, consumer electronics

Waveguide-integrated Rydberg Atom-based RF Field Detector for Near-field Antenna Measurements

October 6, 2019

Author(s)

Matthew T. Simons, Abdulaziz H. Haddab, Joshua A. Gordon, Christopher L. Holloway

We demonstrate amplitude and phase measurements of an RF field in the near-field of a horn antenna using a Rydberg atom-based sensor embedded inside a

Method Development for Contactless Resonant Cavity Dielectric Spectroscopic Studies of Cellulosic Paper

October 4, 2019

Author(s)

Mary Kombolias, Jan Obrzut, Michael T. Postek, Dianne L. Poster, Yaw S. Obeng

The current analytical techniques for characterizing printing and graphic arts substrates are largely ex situ and destructive. This limits the amount of data

Design of an intelligent PYTHON code to run coupled and license-free finite-element and statistical analysis software for calibration of near-field scanning microwave microscopes

October 2, 2019

Author(s)

Jeffrey T. Fong, Nathanael A. Heckert, James J. Filliben, Pedro V. Marcal, Samuel Berweger, Thomas M. Wallis, Pavel Kabos

To calibrate near-field scanning microwave microscopes (NSMM) for defect detection and characterization in semiconductors, it is common to develop a parametric

Comparison of Multiple Methods for Obtaining PΩ Resistances with Low Uncertainties

September 3, 2019

Author(s)

Kwang Min Yu, Dean G. Jarrett, Albert F. Rigosi, Shamith U. Payagala, Marlin E. Kraft

Capabilities for high resistance determinations are essential for calibration of currents below 1 pA, as typically requested in several applications, including

Detecting and Receiving Phase-Modulated Signals With a Rydberg Atom-Based Receiver

September 2, 2019

Author(s)

Christopher L. Holloway, Matthew T. Simons, Joshua A. Gordon, David R. Novotny

Recently, we introduced a Rydberg-atom based mixer capable of detecting and measuring of the phase of a radio-frequency field through the electromagnetically

Machine Learning in a Quality Managed RF Measurement Workflow

July 7, 2019

Author(s)

Aric W. Sanders, John Bass, Arpita Bhutani, Mary A. Ho, James C. Booth

Advances in artificial intelligence, or more specifically machine learning, have made it possible for computers to recognize patterns as well or better than

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