A radio-frequency antenna for a magnetic resonance system has a number of antenna rods and two end rings. The antenna rods are regularly arranged around an antenna axis and are connected at their respective rod ends to the end rings. When the antenna rods proceed essentially parallel to the antenna axis, they have a rod spacing in their middle region from the antenna axis that is smaller than a end ring spacing that at least one of the end rings exhibits from the antenna axis. When the antenna rods form an angle of inclination with the antenna axis, they have a rod spacing from the antenna axis at their end lying closer to the antenna axis that is smaller than an end ring spacing exhibited by the end ring that is connected to that rod end. In both version, rod spacing lies between 25 and 35 cm and is between 5 and 15 mm smaller than the end ring spacing.