Atom-based radio communications for noisy environments

Science Daily  April 5, 2021
Previously NIST researchers had demonstrated that atom-based sensors can receive commonly used communications signals. Now a team of researchers in the US (University of Colorado, NIST) used a Rydberg atom-based sensor for determining the angle of arrival of an incident RF signal, key part for a potential atomic communications system. They measured phase differences of a 19.18 gigahertz experimental signal at two locations inside the vapor cell for various angles of arrival. Comparisons of these measurements with both the full-wave simulation and the plane wave theoretical model show that the atom-based sub-wavelength phase measurements can be used to determine the angle of arrival of an RF field. Measurement made with atom-based sensors are both highly accurate and universal. With further development, atom-based radio receivers may offer many benefits over conventional technologies – micrometer-scale antennas, and they may be less susceptible to some types of interference and noise…read more. TECHNICAL ARTICLE

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