Terahertz electromagnetic field propagation in human tissues: A study on communication capabilities

Piro, Giuseppe; Bia, Pietro; Boggia, Gennaro; Caratelli, Diego; Grieco, Luigi Alfredo; Mescia, Luciano

doi:10.1016/j.nancom.2016.07.010

Cited by 51 publications

(43 citation statements)

References 28 publications

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“…Applying a second‐order accurate finite‐difference scheme at the time instant

t = m Δ t

and using the semi‐implicit approximation:

{E |}^{m} = \frac{{E |}^{m - 1 /2} + {E |}^{m + 1 /2}}{2}

{J |}^{m} = \frac{{J |}^{m - 1 /2} + {J |}^{m + 1 /2}}{2}

and the numerical approximation

{\frac{\partial E}{\partial t} |}^{m} = \frac{{E |}^{m + 1 /2} - {E |}^{m - 1 /2}}{Δ t}

after some mathematical manipulations, well detailed in ref. , it is possible to find the following updating equations for the magnetic and electric fields as well as for the displacement current density:

{boldH |}^{m + 1} = {boldH |}^{m} - \frac{Δ t}{μ_{0}} {\nabla \times E |}^{m + 1 / 2}

\begin{array}{l} center & {E true|}^{m + 1 /2} = \frac{2 ϵ_{0} ϵ_{\infty} - σ normalΔ t}{2 ϵ_{0} ϵ_{\infty}} \end{array}

…”

Section: Fdtd Dispersive Modelingmentioning

confidence: 99%

“…Moreover, the channel characterization in a realistic scenario requires the study of the PEF propagation in biological media. Based on these premises, we applied our fractional‐calculus‐based FDTD algorithm to formulate a more accurate study of in‐body electromagnetic communications . It provided an important step forwards for the state of the art because it was developed a sophisticated channel model quantifying the impact of both the frequency and spatial dependence of the skin permittivity on the channel performance.…”

Section: Special Applicationsmentioning

confidence: 99%

Section: Special Applicationsmentioning

confidence: 99%

Section: Special Applicationsmentioning

confidence: 99%

“…Moreover, PEFs are successfully used for reversible or irreversible electroporation to achieve selective killing of cancer cells, tissue ablation, gene therapy, and DNA based vaccination. Finally, recent applications employing PEFs technology include medical implant communication service, wireless medical telemetry service, body area networks, nanonetworks in a living biological environment, in‐body electromagnetic communications …”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Fractional‐Calculus‐Based Electromagnetic Tool to Study Pulse Propagation in Arbitrary Dispersive Dielectrics

Mescia

Bia

Caratelli

2018

Physica Status Solidi (a)

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Fractional calculus is a fruitful field of research in science and engineering. The concept of fractional exponents is an outgrowth of exponents with integer value. In the same way, fractional order of integration is a generalization of the mathematical operations of differentiation and integration to arbitrary, general, noninteger order. Although it better models the higher complexity by nature, it is still fairly easy to physically represent its meaning. However, taking in consideration that the study of fractional calculus theory opens the mind to entirely new branches of thought, in this feature article the authors illustrate as such concept can be an interesting and useful tools in electromagnetic theory to solve specific electromagnetic problems regarding the wave propagation and radiation in arbitrary dispersive dielectric materials. In particular, time fractional Maxwell's equations for media with power‐law frequency dispersions are illustrated focusing the attention on the mathematical and computational topics. Moreover, practical examples highlighting their usefulness for understanding a variety of electromagnetic phenomena are provided.

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“…Applying a second‐order accurate finite‐difference scheme at the time instant