Fig. 2
a-f Constructed bow tie building blocks used for RF heating in an integrated or hybrid system (a-c) sagittal and (d-f) coronal view. (a,d) 300 MHz setup with the dimensions (150 × 70 × 40) mm3 and D20 as a substrate. (b,e) 500 MHz setup with the dimensions (150 × 70 × 40) mm3 and (c,f) with the dimensions (70 × 40 × 20) mm3, while deionized water has been used as a substrate