3D design of a coaxial microwave antenna in the treatment of liver cancer, which consists of three layers, the inner layer is a cylinder with a radius of 5 and a height of 20, a central cylinder with a radius of 10 and a height of 15, and an outer cylinder with a radius of 15 and a height of 20 and a gap of one millimeter in The lower part of this cylinder is located and this shape enters a sphere with a radius of 10 Mehr sehen