| 摘要 |
A chiral polarization UWB slot antenna comprises a feed region and opposing tapered slot lines along an arcuate path of angle measure 360° or less. Opposing tapered slot lines may terminate in bulbous ends and may be characterized by an impedance profile such as an exponential or a Klopfenstein impedance profile. In alternate embodiments, an arcuate path has an arc length substantially equal to a half wavelength at a frequency of interest and an angle measure substantially equal to 180°. In still further alternate embodiments an arcuate path is substantially described by a radial variation with respect to angle of r(phi)=R sin phi where R is a constant that in some embodiments is substantially equal to ½pi times wavelength (R=lambda/(2pi)) at a particular frequency of interest. In some embodiments, a frequency of interest lies substantially within the range defined by 3.1 GHz to 10.6 GHz.
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