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Description
This paper investigates the applications of a solid silicone-carbon-based phantom for nearfield antenna characterization at millimeter-wave (mmW) frequencies. Unlike conventional phantoms designed to mimic permittivity, this phantom is optimized to replicate the skin’s reflectivity. Numerical simulations are performed to compare the phantom’s response to a homogeneous skin model, focusing on S11, radiation efficiency, total efficiency, and radiation patterns across different distances from a patch antenna operating at 60 GHz. Results show that, while higher errors are observed in the reactive nearfield due to strong field coupling, the phantom provides an accurate representation of near-body EM interactions, with deviations decreasing in the radiating nearfield and beyond. These findings suggest the phantom’s applicability for nearfield antenna testing, particularly in wearable scenarios, where its flexibility allows for testing on curved surfaces and dynamic body conditions.
