A magnetic resonance system for generation of magnetic resonance exposures of an examination subject in a patient positioning region has an antenna structure with a number of antenna elements arranged in the patient positioning region. Feed lines respectively supply the antenna elements with radio-frequency signals for emission of a radio-frequency field in the patient positioning region and/or to accept radio-frequency signals acquired by the antenna elements. The magnetic resonance system also has a radio-frequency shielding that shields an external region outside of the patient positioning region from radio-frequency signals radiated in the patient positioning region. This radio-frequency shielding has a number of feedthroughs through which the feed lines are respectively directed from the external region over a short distance to the antenna elements.