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Abstract Based on the chemical composition and structure of its elements, this thesis proposes a structural theoretical model of dielectric characteristics of cartilage tissues at microwave. This is performed by applying mixing rules to effectively combine the known properties of tissue substructures in order to get the effective macroscopic properties of the medium. The offered approach involves multi- scales, starting with microscopic scales and progressing to macroscopic qualities after multiple scale-steps. The model's predictions match the data from existing measurements in the literature. The model's sensitivity to input parameters has been verified and analysed. The model will most likely be used in non-invasive medical sensing, where it will be able to correlate response of dielectric to pathological structural changes in tissue. theoretical model can also be used to forecast dielectric characteristics for high frequency computational dosimetry, as well as to better understand the fundamental mechanisms underlying macroscopic dielectric behaviour in general. For a variety of reasons, the advantage of dielectric characteristics of biological tissues has piqued the curiosity of researchers. They offer physical measurements that are strongly connected to the underlying chemical and microstructure composition, and they can be utilised as markers for non-invasive diagnostics and medical sensing. They may also be used for computational dosimetry of electromagnetic waves or computational assessment of tissue propagation for communication with biomedical devices. Spectroscopic measurements can provide information on dielectric characteristics. As previously demonstrated, dielectric characteristics of tissues can be theoretically estimated and replicated by taking into account the tissue's material and microstructure composition, as well as quasi-electrostatic field solutions. Theoretical models are independent of actual spectroscopic observations and rely on correctly combining the known features of many basic elements (which is known as"Mixing"). Keywords: Theoretical model, microwave detection, layered dielectrics, dielectric permittivity measurements, Cartilage tissues, biological tissues, Cole-Cole model, Mixing Rules, Complex Dielectric, reflection coefficient. |