Fig. 4: Reductionist approach to analyze electromagnetic resonance of conducting medium.
From: Body-resonance: transmission line-like wireless links enabling high-speed wearable communication

Single-cylinder model: Tx & Rx on a copper cylinder, emulating human arm: (a) in EQS, (b) in BR, Dependency on Tissue Properties: (c) cylinder material replaced with body tissue (skin and muscle), Dependency on Limb Thickness: (d). The cylinder radius increased to emulate the human torso. Cross-cylindrical Human Body Model: E-Field Plot comparison: (e) Lower field strength at Rx indicates limited channel capacity, (f) Higher field strength at Rx denotes higher channel gain that results in an improvement in channel capacity.