The present invention relates to an antenna arrangement comprising means (1, 72, 72′, 77, 77′) for providing an approximation of a
constant current electrical loop, which is arranged to provide a first essentially toroid-shaped
radiation pattern (29), where the antenna arrangement further comprises a first (67) and a second (68) electrical
dipole. The electrical dipoles (67, 68) are arranged essentially orthogonal to each other, and are arranged to provide a second (30) and third (31) essentially toroid-shaped
radiation pattern which each is essentially orthogonal to the other and to the first essentially toroid-shaped
radiation pattern (29). The means (1, 72, 72′, 77, 77′) for approximation of the
constant current electrical loop comprises at least two current path parts (2, 3, 4, 5; 69, 70, 71; 69′, 70′, 71′; 73, 74, 75, 76; 73′, 74′, 75′, 76′), where a current (I1, 12, 13, 14) can be applied to each one of said parts (2, 3, 4, 5; 69, 70, 71; 69′, 70′, 71′; 73, 74, 75, 76; 73′, 74′, 75′, 76′), so that the current (11, 12, 13, 14) in each one of said parts (2, 3, 4, 5; 69, 70, 71; 69′, 70′, 71′; 73, 74, 75, 76; 73′, 74′, 75′, 76′) essentially will be in phase with each other.