Preprint Article Version 1 This version is not peer-reviewed Version 1 : Received: 12 January 2024 / Approved: 15 January 2024 / Online: 15 January 2024 (08:25:41 CET) Särestöniemi, M.; Singh, D.; Dessai, R.; Heredia, C.; Myllymäki, S.; Myllylä, T. Realistic 3D Phantoms for Validation of Microwave Sensing in Health Monitoring Applications. Preprints 2024, 2024011094. https://doi.org/10.20944/preprints202401.1094.v1 Särestöniemi, M.; Singh, D.; Dessai, R.; Heredia, C.; Myllymäki, S.; Myllylä, T.