公开(公告)号：US11493622B1

公开(公告)日：2022-11-08

申请号：US16270046

申请日：2019-02-07

Applicant: Telephonics Corporation

Inventor： John Pierro ,  Seth Resnick ,  Richard Krabak

IPC: H01Q1/28 ,  G01S13/87 ,  G01S13/95 ,  G01S13/42 ,  G01S13/89

Abstract: The antenna uses X Band frequencies for long-distance weather monitoring and W Band frequencies for imaging of terrain and obstacles, for use in a radar system in aircraft nose radome to operate effectively in a degraded visual environment. The antenna's feed structure includes concentrically positioned first and second horns. First and second rectangular waveguides are positioned on a cylindrical portion of the first horn, and at a first and second radial positions spaced 90 degrees apart. First and second coaxial cables respectively couple the first and second rectangular waveguides to a polarization converter, which launches linearly polarized waves received from each of the first and second coaxial cables to form a W-hand circularly polarized wave. The feed structure collects and disseminates W Band and X Band electromagnetic energy.