公开(公告)号：US12261366B1

公开(公告)日：2025-03-25

申请号：US17573712

申请日：2022-01-12

Applicant: Lockheed Martin Corporation

Inventor： Timothy Patrick Wink ,  Cory W. Craddock ,  Jason Stewart Wrigley

IPC: H01Q21/06 ,  H01P1/161 ,  H01Q13/02 ,  H01Q21/00

Abstract: Provided herein are various enhancements for radio frequency (RF) horn antenna systems and arrays. An example apparatus includes a horn antenna array formed in a single workpiece of material comprising horn antenna elements with integrated feed networks. Each of the integrated feed networks comprise a waveguide interface flange having a port, and a filter element having a serpentine cavity coupled to the port that is at least partially formed by a base section, where a separation interface is established between the base section and an attachable cap that forms a remainder of the serpentine cavity. Each of the integrated feed networks also comprise a polarizer element having a waveguide cavity that couples between the serpentine cavity of the filter element and an associated horn antenna element that forms a signal aperture.