Design Optimization of Waveguide Applicator for Microwave Hyperthermia Cancer Treatment

P. Kumar [1], S. Kalra[1], A. Marwaha[1]
[1]Department of Electronics and Communication Engineering, Sant Longowal Institute of Engineering Technology Longowal, Punjab, India

The optimized design of a waveguide applicator has been proposed for superficial microwave hyperthermia using COMSOL Multiphysics 3.5a. In microwave hyperthermia cancer treatment body tissue is exposed to high temperatures using external and internal heating devices. Non-Invasive or external hyperthermia is used to treat tumors that are in or just below the skin (superficial). Non-invasive hyperthermia systems using waveguide applicators are less traumatic to patients. The dimensions of the waveguide is optimally selected to focus the energy more specifically over the tumor region. The 3D modeling of the waveguide applicator is performed using different dielectrics and the performance is verified by analyzing the resistive heating and temperature distributions in muscle like phantom.