A TEM RF antenna device (40) for a magnetic resonance MR imaging system (10), ⋅the RF antenna device (40) comprising a plurality of rungs (44), and each rung (44) having at least one axial member (46) that in an operational state is substantially arranged parallel to the axial direction (38) wherein ⋅the axial members (46) of the plurality of rungs (44) are arranged along an azimuthal direction (34) in a substantially equally spaced relationship about a center axis (42), and wherein ⋅the at least one axial member (46) of each of the rungs (44) has two end regions (48, 50) and wherein ⋅for at least two rungs (44′, 44″) of the plurality of rungs (44) that are adjacently arranged with regard to the azimuthal direction (34), each rung (44′, 44″) comprising at least one transversal member (52, 54) that is galvanically connected to one of the end regions (48, 50) of the axial member (46) of that rung (44′, 44″) only, in the operational state, the at least one transversal members (52, 54) of the adjacent rungs (44′, 44″) are substantially arranged such that there exists at least one location on each of the transversal members (52, 54) of the two rungs (44′, 44″) that at least have substantially identical azimuthal coordinates, thereby reducing the RF field outside of the antenna device.