Patent ID: 8537063

Claim:
An antenna for reception of satellite radio signals emitted circularly in the direction of rotation of polarization comprising: a) a conductive base surface; b) an antenna connection point; c) an additional element connection point; d) at least one antenna output connector; e) at least two antenna elements comprising: i) at least one antenna element formed as a loop antenna which comprises a conductor loop disposed substantially parallel but spaced apart from said base surface, said loop antenna comprising a plurality of interruptions spaced apart from each other and a plurality of capacitors, wherein at least one interruption is bridged by at least one capacitor disposed along said conductor loop, wherein said at least one loop antenna connection point is coupled to at least one interruption of said loop antenna wherein said connection point is configured to feed a ring current into said loop antenna; ii) at least one additional antenna element linearly polarized in a spatial direction and coupled to said additional antenna element connection point; f) a plurality of networks comprising a matching network and a phase shifter network configured to connect said at least two antenna elements to said at least one antenna output connector wherein said additional element connection point and said at least one loop antenna are coupled to each other by said plurality of networks, wherein in reciprocal operation of the antenna, the radiation fields of said loop antenna and of said at least one additional antenna element are superimposed with different phases in a far field of the antenna; wherein said at least one additional antenna element has a polarization orientated substantially perpendicular to the polarization of said loop antenna and an essentially orthogonal phase in the far field.