Title :
Stored energy of coupled electric and magnetic currents and the lower bound on Q
Author_Institution :
Dept. of Electr. Eng., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
New expressions for the stored energy and radiated power of an arbitrary combination of electric and magnetic currents in free space are presented. These expressions enable the calculation of the fundamental lower bound on Q for arbitrary-shaped electrically small antennas of finite size.
Keywords :
antenna theory; electromagnetic wave propagation; Q-lower bound; coupled electric-magnetic currents; electrically small antennas; finite size antenna; radiated power; stored energy; Current density; Dipole antennas; Energy storage; Magnetic cores; Magnetic resonance; Shape; Q-factor; electrically small antennas; physical bounds; reactive energy;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
