Patent ID: 9577347
Date: 2017-02-21
CPC Classifications: H01Q

Claim:
1. An antenna structure of a circular-polarized antenna that can be arranged on an electrically conductive surface, the antenna structure comprising: a first λ/2 dipole, a second λ/2 dipole, a crossing point for the first and second λ/2 dipoles to form a crossed dipole; said λ/2 dipoles forming said crossed dipole being electrically conductively connected at said crossing point and, in relation to said crossing point, having a geometric asymmetry in at least one longitudinal direction of said λ/2 dipoles to form respective dipole limbs of different lengths from said crossing point, to thereby set a desired phase shift; said antenna structure having only one feed point, positioned at one end of one of said λ/2 dipoles; and wherein each one of said λ/2 dipoles includes at least one extending parallel to a plane and at least one leg extending at an angle with respect to the plane.