Antenna for reception of circularly polarized satellite radio signals

An antenna (1) for reception of circularly polarized satellite radio signals, comprising:

• at least one conductive base surface (6);
• at least one conductor loop (2) oriented horizontally above said conductive base surface (6), wherein said conductor loop is configured as a ring line radiator (2) having a structure, and formed by means of a polygonal or circular closed ring line, in an substantially horizontal plane, spaced apart from said conductive base surface (6) by a height h;
• an antenna feeder comprising an arrangement for electromagnetic excitation (3) of said at least one conductor loop (2);
• at least one antenna connector (5) coupled to said arrangement for electromagnetic excitation (3);
• wherein said ring line radiator (2) forms a resonance structure that is electrically excited by said arrangement for electromagnetic excitation (3), so that a current distribution of a running line wave in a single rotation direction occurs on said at least one conductor loop, a phase difference of which, over one revolution, amounts to substantially 2π;
• at least one vertical radiator (4) which runs toward said conductive base surface which is disposed on a circumference of said ring line radiator (2), wherein said at least one vertical radiator is electromagnetically coupled both with said ring line radiator (2) and with said electrically conductive base surface (6), to support a vertically oriented component of a electromagnetic field;
• wherein said height h is smaller than ⅕ of a free-space wavelength λ.