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Josh Gordon (Fed)

Publications

Determining angle of arrival of radio frequency fields using subwavelength, amplitude-only measurements of standing waves in a Rydberg atom sensor

Author(s)
Rajavardhan Talashila, William Watterson, Benjamin Moser, Joshua Gordon, Alexandra Artusio-Glimpse, Nikunjkumar Prajapati, Noah Schlossberger, Matthew Simons, Christopher Holloway
Deep subwavelength RF imaging with atomic Rydberg sensors has overcome fundamental limitations of traditional antennas and enabled ultra-wideband detection of...

Compact Homodyne Extrapolation System (CHEXS)

Author(s)
Joshua Gordon, Benjamin Moser
We present on a novel gain extrapolation antenna range, the Compact Homodyne Extrapolation System (CHEXS), that can achieve absolute antenna gain measurements...
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Data and Software Publications

Patents (2018-Present)

Non-contact Measuring Tool for Precision Measurement

NIST Inventors
Josh Gordon
This invention introduces a non-contact measuring tool designed for precise measurement of objects without physically touching them. It uses advanced optical and sensor technologies to capture accurate data on an object's dimensions and surface characteristics. The tool enhances measurement
Diagram of general gain extrapolation setup showing the pair of antennas, i and j separated by distance, d. The paths traveled by the direct wave (solid line) and 3rd-order scattered wave (dotted line) are shown.

Radio Frequency Antenna Gain Measuring Apparatus and Measuring Gain of an Antenna

NIST Inventors
Josh Gordon and Benjamin Moser
This invention is an enhanced three-antenna gain extrapolation technique that allows one to determine absolute antenna gain with significantly fewer data points, as few as 10 data points, and at much closer distances, as much as six times closer than the traditional gain extrapolation technique, yet
Image for 11,073,373

Non-contact Coordinate Measuring Machine Using a Noncontact Metrology Probe

NIST Inventors
Josh Gordon
A non-contact coordinate measuring machine includes: a noncontact metrology probe including: first and second cameras, wherein the second camera has a second field of view that overlaps a first field of view in a prime focal volume; a third camera has a third field of view that overlaps the prime
Description of Patent 11,165,505

Quantum Atomic Receiving Antenna and Quantum Sensing of Radiofrequency Radiation

NIST Inventors
Josh Gordon and Christopher L. Holloway
The invention is a new type of receiving antenna that uses optically excited atoms confined to a vapor cell to sense the strength, direction, and polarization of incoming RF radiation over the frequency range of under 1 GHz to about 1 THz (heretofore this frequency range will be referred to as RF i
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Created October 9, 2019, Updated December 8, 2022
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