The Magnetic Dipole Antenna Immersed in a Conducting Medium

Abstract

The magnetic dipole antenna or small current-carrying loop immersed in a conducting medium is investigated. Explicit expressions for the fields are derived for the case when there is a spherical insulating cavity enclosing the dipole. The power radiated from the insulated dipole is discussed and an explicit expression for the total power is given for the case when all displacement currents in the media are negligible.