Tilmann Wittig

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Electrodynamic field simulations in the frequency domain typically require the solution of large linear systems. During the design process it is desirable to vary specified parameters like the frequency, geometry details as well as material parameters. Initializing an individual calculation to consider all parameter changes is not efficient. Model Order(More)
The Maxwell equations have in general no analytical solution and are therefore often discretized in the space variables leading to a system of differential equations constituting the Maxwell Grid Equations. The discretization method used here is the Finite Integration Theory (FIT). In electromagnetic field computations a model often needs to be simulated(More)
To avoid the application of ionizing radiation to the human body, microwave based imaging has become a topic of intensive research over the last years. This presentation will introduce and compare two major approaches in this domain: Ultra-Highfield Magnetic Resonance Imaging is based on the nuclear spin response, while Microwave Imaging applies ideas of(More)
Bio-medical applications often employ geometrically complex models of apparatus and human beings. Thus only methods with capabilities for extremely high spatial resolution are adequate for a proper analysis. The large system size is often coupled to thermal analysis. On top of theses algorithmic challenges, human models are typically not available in the(More)
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