Patent ID: 8259030

Claim:
A helical antenna comprising: a plurality of radiating strands wound in a helix according to a winding form, wherein each radiating strand is composed of at least one reference pattern defined by an analytical function defined in a marker whereof an axis of the abscissae is a director axis of the radiating strands and is a periodical function of the equation y = A 0 ⁢ sin ⁡ ( 2 ⁢ π ⁢ ⁢ x T ) + ∑ k = 1 ∞ ⁢ A k ⁢ sin ⁡ ( 2 ⁢ π ⁢ ⁢ σ k ⁢ x T ) where T is a period of a sinusoid, k is an index, σ is a coefficient, 0≦x≦T, and where 2 ⁢ π ⁢ ⁢ σ k ⁢ 1 T and A k correspond respectively to a frequency and an amplitude of the sinusoid of index k.