Patent ID: 7034767

Claim:
An antenna for an electromagnetic field comprising: a ferrite core ( 4 ); and a conductor ( 2 ) helically wound around said ferrite core ( 4 ) to form a coil, said conductor having a first end portion ( 2 a ) at one end of said coil and a second end portion ( 2 c ) at the other end of said coil, said conductor having a connection portion forming a connection point ( 2 b ) in said coil intermediate said end portions ( 2 a , 2 c ) of said conductor, said first end portion ( 2 a ) of said conductor being suitable for connection to one conductor ( 12 ) of an antenna connecting cable ( 10 ), said connection point ( 2 b ) being suitable for connection to another conductor ( 14 ) of the antenna connecting cable ( 10 ); and said second end portion ( 2 c ) of said conductor is a free and unconnected end of said coil.