公开(公告)号：EP3210258A4

公开(公告)日：2018-06-20

申请号：EP14904244

申请日：2014-10-20

申请人： RUAG SPACE AB

发明人： ÖHGREN MIKAEL ,  JOHANSSON JOAKIM ,  DIMMING PATRIK

IPC分类号： H01Q11/08 ,  H01Q1/48 ,  H01Q13/28

CPC分类号： H01Q11/08 ,  H01Q1/36 ,  H01Q1/48 ,  H01Q11/14 ,  H01Q13/28 ,  H01Q21/24

摘要： The invention relates to a multifilar helix antenna (1) comprising a wave feed and polarizing section (2) comprising a cover portion (3) comprising a through opening (4). The antenna (1) comprises a helix radiator (5) comprising three or more resonant helical elements (6) evenly distributed about an imaginary circle. Each helical element (6) extends in a longitudinal direction (Z) from the feed and polarizing section (2) through the opening (4) in the cover portion (3) and wound to form the helix radiator (5). Each helical element (6) comprises one or a plurality of wave perturbations (7) separated in the longitudinal direction (Z) and that each set of perturbations are positioned at the same level in the longitudinal direction (Z) to yield an equivalent array of stacked helical radiators, wherein the cover portion (3) comprises a rotationally symmetric corrugated assembly (8).