公开(公告)号：US20250132492A1

公开(公告)日：2025-04-24

申请号：US18383195

申请日：2023-10-24

Applicant: United States of America as represented by the Administrator of NASA

Inventor： Peter Seigner ,  Kenneth Segal ,  Rafael Rincon

IPC: H01Q1/28 ,  H01Q1/38 ,  H01Q9/04

Abstract: The aspects of the disclosed embodiments are directed to a dual-polarized, wideband, lightweight P-band (435 MHz) antenna element and array for spaceborne radar applications. The antenna array was developed for planetary synthetic aperture radar (SAR) applications, but it is also suitable for earth science applications (i.e., airborne and earth orbiting radar) as well as other RF applications that require beam steering (e.g., communications). The antenna array is based on lightweight, low-profile antenna elements that form the building blocks of a manageable array panel that can in turn be used to build larger arrays consisting of multiple panels. The element design combines a novel, mostly planar conductor antenna element geometry with a robust light-weight composite material construction. The antenna element and array design, reported here for P-band operation, can be scaled to other frequencies (e.g., L-, S-, C-, or X-bands) for other radar applications where lightweight and beam agility are required.