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A numerical analysis of the electromagnetic propagation in a body centric scenario at 60 GHz is presented in this paper. Both a full wave technique, based on a parallel Finite Difference Time Domain (FDTD) and a ray tracing method, based on a combination of Geometrical Optics and Uniform Theory of Diffraction (GO-UTD), have been used. The results have been compared in terms of path loss values.
Numerical analysis has been presented for a short- range on-body channel at 94 GHz. Finite Difference Time Domain technique has been adopted to investigate the scenario. Since at higher frequency FDTD becomes computationally expensive, a parallel version of the method has been implemented in an in-house software. Path loss values have been calculated for head to shoulder link. Results are compared...
A spherical optical black hole is studied using a parallel radially dependent finite-difference time-domain simulation technique. The device requires nondispersive metamaterial structures and is capable of broadband operation, based on transformation optics. Excellent absorption is demonstrated for normal wave incidence.
With the introduction of low-power, high data rate ultra wideband (UWB) technology, the idea of providing constant and reliable personal communication services with the user being the centre of attention seems more feasible and attractive. The paper presents UWB on-body radio channel characteristics in both large-scale (path loss) and small-scale (delay) prospective. Radio channel modelling using...
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