Patent ID: 9620860
Date: 2017-04-11
CPC Classifications: H01Q

Claim:
1. An antenna arrangement comprising an elongated structure for guiding an electromagnetic wave, said elongated structure comprising: a first subsection comprising first radiation elements; a second subsection; a third subsection comprising second radiation elements, wherein said first, second and third subsections are serially connected, said radiation elements are through-going perforations in the elongated structure, each said perforation adapted to allow a fraction of the total energy in the guided electromagnetic wave to be radiated out from the perforation, the first, second and third subsections each exhibiting a longitudinal direction of extension, the first subsection exhibiting a first radiation pattern and the third subsection exhibiting a second radiation pattern, said longitudinal directions of adjacent serially connected subsections are oriented in different directions to create a predetermined radiation pattern by superpositioning of the first and second radiation patterns, an angle between said longitudinal directions of adjacent serially connected subsections is formed and said angle between said longitudinal directions of adjacent serially connected subsections is substantially greater than 90 degrees and less than 180 degrees, each of said subsections comprises an inner conductor and an outer conductor for shielding the inner conductor, and the second subsection does not have any through-going perforations.