Hesselbarth, Jan (Prof. Dr. sc. techn.)Hoffmann, Dennis2025-04-0220251921206861http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-156660https://elib.uni-stuttgart.de/handle/11682/15666https://doi.org/10.18419/opus-15647A mmWave near-field imaging concept is presented, which, in addition to purely transversal field components, uses a longitudinal field component to illuminate an object. A prototype at 31 GHz demonstrates, how the additional use of higher-order modes improve the quality of images generated in mmWave near-field imaging.eninfo:eu-repo/semantics/openAccess621.3doctoralThesis