Transient analysis of power loss density with time-harmonic electromagnetic waves in Debye media

Due to the complex permittivity, it is difficult to directly clarify the transient mechanism between electromagnetic waves and Debye media. To overcome the above problem, the temporal relationship between the electromagnetic waves and permittivity is explicitly derived by applying the Fourier invers...

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Published inRoyal Society open science Vol. 8; no. 11; p. 210023
Main Authors Zhong, Jiaqi, Liang, Shan, Chen, Yong, Tan, Jiajia
Format Journal Article
LanguageEnglish
Published England The Royal Society 01.11.2021
Subjects
Debye media
electromagnetic waves
Physics and Biophysics
power loss density
transient analysis
power loss density
Debye media
electromagnetic waves
transient analysis
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Summary:Due to the complex permittivity, it is difficult to directly clarify the transient mechanism between electromagnetic waves and Debye media. To overcome the above problem, the temporal relationship between the electromagnetic waves and permittivity is explicitly derived by applying the Fourier inversion and introducing the remnant displacement. With the help of the Poynting theorem and energy conservation equation, the transient power loss density is derived to describe the transient dissipation of electromagnetic field and the mechanism on phase displacement has been explicitly revealed. Besides, the unique solution can be obtained by applying the time-domain analysis method rather than involving the frequency-domain characteristics. The effectiveness of transient analysis is demonstrated by giving a comparison simulation on one-dimensional example.
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ISSN:2054-5703
2054-5703
DOI:10.1098/rsos.210023