Open AccessTransient analysis of power loss density with time-harmonic electromagnetic waves in Debye media
Author(s) -
Jiaqi Zhong,
Shan Liang,
Yong Chen,
Jiajia Tan
Publication year - 2021
Publication title -
royal society open science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 51
ISSN - 2054-5703
DOI - 10.1098/rsos.210023
Subject(s) - transient (computer programming) , physics , poynting vector , permittivity , debye , frequency domain , electromagnetic field , electromagnetic radiation , computational physics , dissipation , electromagnetic pulse , wave propagation , classical mechanics , optics , mathematical analysis , magnetic field , computer science , dielectric , mathematics , condensed matter physics , quantum mechanics , operating system
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.