Radiofrequency planar antenna with circular polarisation

A radio frequency antenna including at least one antenna array operating at an operating frequency, each antenna array comprising:

• a powered dipole, the powered dipole being connected at an access point to a radio frequency transmitter adapted to generate or receive a wave at the operating frequency,
• at least one coupled dipole, each coupled dipole being connected in an access point to a respective load which is resistive and/or capacitive and/or inductive,
• the powered dipole and each coupled dipole having two strands, the strands extending from the access point, the access points being arranged to form a polygon,
• a direction being defined for each strand, the powered dipole and each coupled dipole being arranged so that each direction of one strand intersects a direction of another strand,
• the first strand of a dipole extending along the second strand of a neighboring dipole on said polygon at a distance less than or equal to one tenth of the wavelength corresponding to the operating frequency, said wavelength being called operating length.