US 12,316,013 B1
Ultra-broadband current sheet array
Matthew G. Salem, Westminster, CO (US); Jason P. Moon, Broomfield, CO (US); and Ileana C. Newhall, Longmont, CO (US)
Assigned to BAE Systems Space & Mission Systems Inc., Broomfield, CO (US)
Filed by BAE Systems Space & Mission Systems Inc., Broomfield, CO (US)
Filed on May 27, 2022, as Appl. No. 17/826,496.
Claims priority of provisional application 63/194,072, filed on May 27, 2021.
Int. Cl. H01Q 21/26 (2006.01); H01Q 1/48 (2006.01); H01Q 9/28 (2006.01)
CPC H01Q 21/26 (2013.01) [H01Q 1/48 (2013.01); H01Q 9/28 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An array antenna, comprising:
a substrate;
a first antenna element disposed on a first surface side of the substrate, the first antenna element including:
a resistive-capacitive (RC) loading structure including a set of conductive surfaces and a set of resistive surfaces disposed on the first surface of the substrate;
a dielectric layer, wherein the dielectric layer is disposed on the first surface side of the substrate and over the RC loading structure;
dipole arms disposed on the dielectric layer and adjacent the first surface side of the substrate, wherein one conductive surface of the set of conductive surfaces is provided adjacent each of the dipole arms, wherein each conductive surface is spaced apart from a corresponding dipole arm by a portion of the dielectric layer, and wherein one resistive surface in the set of resistive surfaces is disposed adjacent at least a portion of a gap between each of the conductive surfaces; and
a ground plane, wherein the ground plane is disposed on a second surface side of the substrate.