| 摘要 |
<p>A wide band antenna having an upper and a lower operational frequency and comprising an array (100) of antenna elements (102), each antenna element comprising an elongate portion substantially occupying a plane and comprising a pair of tapering antenna blades, each of which narrows as it extends outwardly, the pair thereby defining between their inner edges a notch which opens outwardly from a feed region, and wherein antenna elements having elongate portions in a first plane are separated from antenna elements having elongate portions in an adjacent plane by a distance less than or equal to half of the wavelength of the upper operational frequency, thereby providing a spatially over-sampled array.</p> |
