US 12,237,573 B2
Resistively loaded tightly coupled dipole array additively manufactured modular aperture
Alexander D. Johnson, Waltham, MA (US)
Assigned to BAE Systems Information and Electronic Systems Integration Inc., Nashua, NH (US)
Filed by BAE SYSTEMS Information and Electronic Systems Integration Inc., Nashua, NH (US)
Filed on Feb. 17, 2023, as Appl. No. 18/170,851.
Prior Publication US 2024/0283144 A1, Aug. 22, 2024
Int. Cl. H01Q 21/26 (2006.01); H01Q 1/38 (2006.01); H01Q 1/48 (2006.01)
CPC H01Q 1/38 (2013.01) [H01Q 1/48 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An antenna assembly comprising:
an antenna feed configured to receive a signal over a wide bandwidth;
a ground plane;
an antenna element including a first conductive dipole arm in planar alignment with a surface of the ground plane and a second conductive dipole arm in planar alignment with the surface of the ground plane, parallel and adjacent to the first conductive dipole arm;
a conductive wall (“H-wall”) in electrical communication with the ground plane and having an end adjacent to, and physically separate from, the second conductive dipole arm, an axial length of the H-wall being orthogonal to the ground plane; and
a resistive surface between the ground plane and the antenna element, the resistive surface being wideband or frequency selective to attenuate the signal passing through the resistive surface along a reflective path between an aperture and the ground plane.