EM-Thermal Co-Simulation of Microwave Ablation Applicator in Liver Tissue Phantom with Bowtie-Slot Surface Antenna

In this paper, design and electromagnetic-thermal co-simulation of a microwave applicator and a bowtie-slot body matched antenna are discussed. The applicator is inserted into a liver tissue phantom to heat the tissue with 50 W power for 300 seconds in thermal simulation. The resultant temperature profile is fed back into the electromagnetic simulation with temperature-dependent material properties of the liver. Similarly, 50 W power is also stimulated in the applicator in electromagnetic simulation to observe the difference in received power at the surface bowtie-slot antenna during the heating process.