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oai:keep.lib.asu.edu:node-1982942024-12-23T18:01:48Zoai_pmh:alloai_pmh:repo_items

198294 https://hdl.handle.net/2286/R.2.N.198294 http://rightsstatements.org/vocab/InC/1.0/ All Rights Reserved 2024 111 pages Doctoral Dissertation Academic theses Text eng Hale, Paul Aberle, James Liebetreu, John Goodnick, Stephen Papandreou-Suppapola, Antonia Arizona State University Partial requirement for: Ph.D., Arizona State University, 2024 Field of study: Electrical Engineering New quantum mechanical based sensing and reception techniques for communications have gained interest in academia and industry for their possible avenues to increased sensitivity and tunability, and reduced system size, weight, and power. A primary example is Rydberg atom quantum receivers, which leverage the light absorption and transparency characteristics of hydrogen-like atoms when in a highly excited state, with their electric field sensitivity and reaction to impinging electromagnetic fields. On the surface, these devices appear to completely solve many challenges and short comings with classical receiver design. However, many new challenges unique to these atomic sensors present themselves, that left unresolved, result in underwhelming performance and limited use cases in which they are suitable for deployment. This research examines and establishes the most prevalent of these shortcomings, namely: 1.) insufficient realized sensitivity, 2.) non-linear behavior, 3.) dynamic range limitations, 3.) inadequate down-conversion image rejection and front-end filtering, and 4.) electromagnetic interference and local oscillator leakage. This research explores the viability of classical enhancements to quantum sensors, and whether long standing restrictions, such as the well-established Chu limit, still affect and bound performance and aperture size in the same way when applying classical techniques to enhancing the quantum sensor performance. Once the viability of classical techniques to enhance quantum sensor performance is established, this research describes the application of these techniques to solve the shortcomings listed. Finally, novel techniques to further enhance performance and improve physical realizability are suggested. Electromagnetics Electrical Engineering Antenna Theory Impedance Matching Quantum Sensing Rydberg Atoms Classical Electromagnetic Techniques for the Enhancement of Quantum Sensor Performance