2015/03/23 by Miloslav Čapek, Capek, Miloslav, Lukáš Jelínek +1
Engineering · #Antenna Design and Optimization #Classical Physics (physics.class-ph) #Electromagnetic Compatibility and Measurements #Energy Harvesting in Wireless Networks #FOS: Physical sciences
paper · pdf · doi:10.48550/arxiv.1503.06752
openalex publication_date 2015/03/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Three contradictory but state-of-the-art concepts for defining and evaluating stored electromagnetic energy are treated in this communication, and are collated with the widely accepted definition of stored energy, which is the total energy minus the radiated energy. All three concepts are compared, and the results are discussed on an example of a dominant spherical mode, which is known to yield dissimilar results for the concepts dealt with here. It is shown that various definitions of stored energy density immanently imply diverse meanings of the term "radiation".