Figure 4
From: Concept of a Radiofrequency Device for Osteopenia/Osteoporosis Screening

(a) Computational model configuration. The RX dual patch antenna is on top of the wrist; the TX antenna is on its bottom. (b) Distribution of the Poynting vector through the wrist cross-section with the lower threshold of 0.1 W/m2 and the upper threshold of 3000 W/m2 or 0.3 W/cm2. The vast majority of the radiated power propagates through the center of the wrist and through the bone marrow toward the receiver antenna while a vanishingly small power flow is observed close to the perimeter of the wrist. (c) Distribution of the complex magnitude of the total electric field through the wrist cross-section.