US 12,469,985 B2
Additively manufactured antenna with Vivaldi element
Alexander D. Johnson, Waltham, MA (US); and James F. Fung, Manchester, NH (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 Aug. 17, 2023, as Appl. No. 18/451,393.
Prior Publication US 2025/0062544 A1, Feb. 20, 2025
Int. Cl. H01Q 21/22 (2006.01); H01Q 5/47 (2015.01)
CPC H01Q 21/22 (2013.01) [H01Q 5/47 (2015.01)] 19 Claims
OG exemplary drawing
 
1. An antenna assembly comprising:
a first flare arm having a first tapered edge;
a second flare arm having a second tapered edge located adjacent to the first flare arm;
a feed block having an opening therein;
a feed slot extending from the opening to an outer periphery of the feed block; and
a feed line having a first portion integral with the feed block as a contiguous unitary component, and a second portion at least partially extending across the feed slot,
wherein the feed slot is continuously tapered with respect to at least one of the first tapered edge and the second tapered edge; and
wherein the feed block includes a first channel configured to receive a portion of the first flare arm and a second channel configured to receive a portion of the second flare arm.