Magnet resonance transmission antenna

摘要

The transmission antenna includes at least two transmission elements (1,2) each of which generates a linear polarised magnetic field. The single magnetic fields superimpose to an overall magnetic field. The transmission elements are so coupled that a transmission current (I) supplied to one transmission element generates a phase delayed couple current (I') in the other transmission element. The transmission elements generate a circular polarised overall magnetic field. Preferably, the transmission elements are coupled in an inductive, capacitive or inductive-capacitive manner and are tuned to a common resonance frequency (f).