Planar array for non-invasive ultra-superficial hyperthermia applicator

The 8×8 array applicator for 915 MHz hyperthermia proposed. Proposed array applicator is 8×8 lattice array with and without phased feeding. 8×8 lattice array with same phase is for superficial hyperthermia. 8×8 lattice array with phased feeding is for ultra-superficial hyperthermia, which has deeper treatment area. 8×8 lattice array without phased feeding has 61 % effective treatment area of array size in 2 cm depth from skin surface. 8×8 lattice array with phased feeding has penetration enhancement from 34 mm to 49 mm.