US 12,218,421 B2
First and second log-periodic antenna panels
Stephen Badger, Ocean Grove, NJ (US); and Shuguang Chen, Bel Air, MD (US)
Assigned to The Government of the United States, as represented by the Secretary of the Army, Washington, DC (US)
Filed by The Government of the United States, as represented by the Secretary of the Army, Washington, DC (US)
Filed on Mar. 7, 2023, as Appl. No. 18/118,389.
Prior Publication US 2024/0305001 A1, Sep. 12, 2024
Int. Cl. H01Q 11/10 (2006.01); H01Q 21/08 (2006.01)
CPC H01Q 11/10 (2013.01) [H01Q 21/08 (2013.01)] 20 Claims
OG exemplary drawing
 
19. A system, comprising:
a first log-periodic antenna panel with a first geometry;
a second log-periodic antenna panel with a second geometry;
a first ground plate coupled to the first log-periodic antenna panel that causes the first log-periodic antenna panel to be more directional;
a second ground plate coupled to the second log-periodic antenna panel that causes the second log-periodic antenna panel to be more directional;
a first feed coupled to the first log-periodic antenna panel;
a second feed coupled to the second log-periodic antenna panel;
a management component configured to manage the first feed to be at a normalized 0 degrees and to manage the second feed to be at a 180 degree offset from the first feed; and
a wall,
where the first log-periodic antenna panel and the second log-periodic antenna panel form an antenna panel set,
where the first ground plate and the second ground plate form a ground plate set,
where the wall is disposed between the antenna panel set and the ground plate set to form a cavity,
where the first log-periodic antenna panel and the second log-periodic antenna panel are arranged along about the same plane next to one another,
where the second geometry is a mirror of the first geometry,
where the first geometry's footprint is circular, and
where the second geometry's footprint is circular.