公开(公告)号：US20240405437A1

公开(公告)日：2024-12-05

申请号：US17877013

申请日：2022-07-29

Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

Inventor： David P. Charette ,  Daniel L. Fontaine

IPC: H01Q9/04 ,  H01Q13/08

Abstract: A low profile, broadband radiator operates as a dielectric rod antenna (DRA) but is conformally mounted to a conducting sheet along its axis of symmetry. The new device exploits the imaging theory of electromagnetics to split the DRA in half while maintaining its full-height TEM feed, HE11 waveguide, and radiation taper characteristics. The disclosed device is attractive for applications requiring directed energy on or near the axis of the antenna, i.e. ‘end-fire’, and for high shock and velocity environments. Bandwidth extension is realized by adding one or more cores of higher dielectric material and by modifying the feed and mode formation regions. A second polarization is generated by configuring the feed for odd-mode transmission and creating a flared notch radiator within a metallized split launcher.