Invention Grant
US07649505B2 Circularly polarized low wind load omnidirectional antenna apparatus and method 失效
圆极化低风荷载全向天线装置及方法

  • Patent Title: Circularly polarized low wind load omnidirectional antenna apparatus and method
  • Patent Title (中): 圆极化低风荷载全向天线装置及方法
  • Application No.: US11826100
    Application Date: 2007-07-12
  • Publication No.: US07649505B2
    Publication Date: 2010-01-19
  • Inventor: John L. Schadler
  • Applicant: John L. Schadler
  • Applicant Address: US NC Charlotte
  • Assignee: SPX Corporation
  • Current Assignee: SPX Corporation
  • Current Assignee Address: US NC Charlotte
  • Agency: Baker & Hostetler LLP
  • Main IPC: H01Q1/12
  • IPC: H01Q1/12
Circularly polarized low wind load omnidirectional antenna apparatus and method
Abstract:
A circularly polarized, omnidirectional, corporate-feed pylon antenna uses multiple helically-oriented dipoles in each bay, and includes a vertical and diagonal support arrangement of simple structural shapes configured to provide a frame strong enough to sustain mechanical top loads applied externally. The radiators in each bay fit within the vertical supports. The radiators are integrally formed with cross-braces, and are fed with manifold feed straps incorporating tuning paddles. A single cylindrical radome surrounds the radiative parts and the vertical supports. The antenna admits of application to the upper L-band at the full FCC-allowed ERP. Beam tilt, null fill, and vertical null can be readily accommodated.
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