Patent ID: 6847331

Claim:
An antenna that by rotation of said antenna can be attached and detached from a structure, said antenna comprising: a base body with a contact area disposed to be in electrical contact with said structure when said antenna is attached to said structure; a receiving portion in electrical contact with said base body; said base body and said receiving portion being encased in a jacket; at least one flank surface provided on said base body and said flank surface being encased by said jacket; and a crosspiece disposed from said base body, said crosspiece having at least one flank surface and said crosspiece flank surface also being encased by said jacket, wherein a force produced when said jacket is rotated in one direction acts in an essentially perpendicular arrangement from said jacket against at least one of said flank surfaces and when said jacket is rotated in an opposite direction another force acts in an essentially perpendicular arrangement from said jacket against at least one other of said flank surfaces.