An antenna element for magnetic resonance applications has at least one
sub-section that extends along a section axis and is adjacent to an
auxiliary circuit. The antenna element has a coupling section and an
auxiliary circuit section that is inductively coupled to the sub-section
via the coupling section. The auxiliary circuit section extends parallel
to the sub-section at a distance from the section axis. The auxiliary
circuit has controllable tuning elements therein. Depending on their
control state, a radio-frequency excitation current flowing in the
sub-section causes, at respectively different times, each of a leading
auxiliary current, or a lagging auxiliary current, or no auxiliary
current to flow in the auxiliary current section.