Self directing antenna with circular polarisation
Antenne autodirectrice en polarisation circulaire
Résumé
The antenna has two units e.g. electric and magnetic doublet, for realizing operating modes, radiating circular polarizations, and possessing toric diagrams along two axes (Ox, Oy), respectively. One of the units is placed adjacent to another unit and oriented with 90 degrees phase shift. One of the operating modes is in advance quadrature or delay quadrature with respect to another operating mode. The units have a ring-shaped helix comprising spires (2) formed by folding a copper wire or copper strip.