Microwave ablation technique (MWA) for cancer treatment: Simulation of single Slot MCA for different slot position

One of the effective options to kill cancer cell is Microwave ablation (MWA). In this process radiation is focused on the desired areas, ensuring appropriate temperature distribution without damaging the surrounding tissues. To effectively treat cancer, Slot coaxial antennas can be used for producing a heat absorption and temperature distribution model. In this work, it is has been demonstrated that when the antenna slot position is at 50% of the tumor higher SAR value (about 5.78 kW/kg peak SAR) and larger heat ablation area is achieved; while changing the slot position more good cells get destroyed but changing slot position also decreases temperature (The maximum temperature within the breast tissue is 203°C for 50% slot position for t = 2 min and for the same duration of time 156°C and 185°C were found for 25% and 75% slot position respectively). Lastly the results reveals that for the presented Slot Coaxial Antenna at 2.45GHz and 10W power; for optimized and efficient impact, the microwave heating should be continued for 2 min at 50% slot position; less time would not cover all the tumor cell and changing the slot position will result in damaging more good cells.