| 摘要 |
A double helix antenna (10) comprised of orthogonally-wound helix conductors. The double helix antenna (10) includes a first helix conductor (14) wound in a first direction about a vertical axis, V, of the double helix antenna (10). A second helix conductor (18) is wound in a second direction about the vertical axis, V. In a specific implementation, the first and second helix conductors (14 and 18) are of different lengths, respectively corresponding to first and second frequency bands. Additionally, the first and second helix conductors (14 and 18) are wound so as to be orthogonal at those horizontal planes within which the first and second helix conductors (14 and 18) intersect or are otherwise minimally separated in the horizontal dimension. This orthogonal winding relationship between the helix conductors substantially reduces mutual coupling, thus enabling operation of separate helical antennas in close physical proximity.
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