Electromagnetic Energy Balance Equations and Poynting Theorem
preprintposted on 2020-06-25, 15:42 authored by Gaobiao XiaoGaobiao Xiao
Poynting theorem plays a very important role in analyzing electromagnetic phenomena. The electromagnetic power flux density is usually expressed with the Poynting vector. However, since Poynting theorem basically focuses on the power balance in a system, it is not so convenient in some situations to use it for evaluating the electromagnetic energies. The energy balance issue for time varying fields is revisited in this paper, and a set of energy balance equations are introduced, and a modified method for evaluating power flux is proposed.
Email Address of Submitting Authorgaobiaoxiao@sjtu.edu.cn
ORCID of Submitting Authorhttps://orcid.org/0000-0001-5547-9475
Submitting Author's InstitutionShanghai Jiao Tong University
Submitting Author's Country