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(φ)=R sin φ where R is a constant that in some embodiments is substantially equal to ½π times wavelength (R=λ/(2π)) 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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机译:一种手征极化UWB缝隙天线,包括馈电区域和沿弧度为360°或更小的弧形路径的相对的锥形缝隙线。相对的锥形缝隙线可以终止于球形末端,并且可以通过阻抗曲线(例如指数或Klopfenstein阻抗曲线)来表征。在替代实施例中,弧形路径的弧长基本等于感兴趣频率下的一半波长,并且角度测量值基本上等于180°。在另外的替代实施例中,弓形路径基本上由相对于r(φ)= R sinφ的角度的径向变化来描述,其中R是一个常数,在一些实施例中,该常数基本上等于波长的1 /2π倍(R =λ/( 2π))。在一些实施例中,感兴趣的频率基本上位于3.1 GHz至10.6 GHz定义的范围内。
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