Conference paper
Minimum Q Electrically Small Spherical Magnetic Dipole Antenna - Theory
In
2009 International Symposium on Antennas and Propagation (isap 2009)
—
2009, pp. 695-698
Abstract
The stored energies, radiated power, and quality factor of a magnetic-dipole antenna, consisting of a spherical electrical surface current density enclosing a magnetic core, is obtained through direct spatial integration of the internally and externally radiated field expressed in terms of spherical vector waves.
The obtained quality factor agrees with that of Wheeler and Thal for vanishing free-space electric radius but holds also for larger radii and facilitates the optimal choice of permeability in the presence of the resonances.
| Language: | English |
|---|---|
| Year: | 2009 |
| Pages: | 695-698 |
| Proceedings: | 2009 International Symposium on Antennas and Propagation |
| ISBN: | 9742354650 and 9789742354657 |
| Types: | Conference paper |
| ORCIDs: | Breinbjerg, Olav and Kim, Oleksiy S. |
