Title :
An overview of stored electromagnetic energy
Author :
Gustafsson, Mats ; Jonsson, B.L.G.
Author_Institution :
Dept. of Electr. & Inf. Technol., Lund Univ., Lund, Sweden
Abstract :
Although, the stored electromagnetic energy of an antenna is used to determine the antenna Q, it is difficult to define the stored energy. The stored energy can be estimated from the input impedance of the antenna, the electromagnetic fields around the antenna, and the current densities in the antenna structure. These estimates are similar but not equal for all antennas. Here, the different approaches to determine the stored energy are discussed.
Keywords :
antennas; current density; electromagnetic waves; energy storage; antenna structure; current densities; electromagnetic fields; stored electromagnetic energy; Antennas; Current density; Electromagnetics; Energy storage; Impedance; Q-factor;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2014 International Conference on
Conference_Location :
Palm Beach
Print_ISBN :
978-1-4799-7325-5
DOI :
10.1109/ICEAA.2014.6903966
