查看文章

An ultra wideband antenna comprises a Substrate (21). A metal layer deposited on the Substrate comprises first and second non-metallic regions (22a, 22b) defined therein. The first and second non-metallic regions (22a, 22b) are arranged on either side of a longitudinal axis (X), the longitudinal axis (X) corresponding to a feed axis of the antenna. The first and second non-metallic regions taper towards the first longitudi nal (X) to form a bowtie pattern. Each of the first and second non-metallic regions (22a, 22b) comprises at least one tuning slot (31, 33), the at least one tuning slot (31, 33) being arranged about a respective first axis (X, X), the first axis (X, X) being parallel to the longitudinal axis (X), and wherein the at least one tuning slot extends along its respec tive axis (X, X) to form a non-metallic area outside the non-metallic area defined by the respective first and second non-metallic region (22a, 22b). The …