섬유

backfire helical feed

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 231
a novel backfire helical feed for a paraboloidal reflector is described. the antenna requirements were a 20 percent bandwidth at l-band, right-hand circular polarization, a maximum voltage standing-wave ratio (vswr) of 2. 0, and a peak power capability of 200 kw unpressurized. the feed consists basically of a 3. 5-turn helix wound around a 15/8-in rigid coaxial transmission line. 6 refs