Waveguide Array Applicator for Microwave Medical Imaging

In this paper, we propose a novel idea of a diagnostic applicator composed of an array of 8 waveguides filled with distilled water, which can be used for non-invasive temperature measurement based on microwave tomography during cancer treatment using microwave hyperthermia. The waveguide design procedure and simulation results from SEMCAD X are presented. To verify the impedance matching of the applicator, scattering matrix measurements were performed with a muscle tissue agar phantom. Measurements with dielectric inhomogeneity in the agar phantom region are presented to demonstrate the feasibility of using our design for further developments in this area.