ANTENNA DEVICE, AND ARRAY ANTENNA, WITH PLANAR NOTCH ELEMENT FEED

摘要

The present invention relates to a broadband non-resonant antenna device for wireless transmission of information using electromagnetic signals, comprising a metal sheet layer (2) , forming a plane, with a slotline (3) that comprises a first part (3a) and a second part (3b). The side of the second part (3b) that is the most distant from the first part (3a) transcends into a widening open-ended tapered slot (6) in the metal sheet layer. The device additionally comprises a feeding line (4) in the metal sheet layer. The feeding line (4) comprises a feeding part (7), with a first end (7a) and a second end (7b), and gaps (8, 9) separating the feeding part (7) from the surrounding metal sheet layer (2) by a certain distance, where the slotline (3) is intersected by the feeding line (7).