US 12,341,271 B2
Dipole antenna with low cross sectional area
Paul Robert Watson, Kanata (CA)
Assigned to Communication Components Antenna Inc., Kanata (CA)
Filed by Communication Components Antenna Inc., Kanata (CA)
Filed on Mar. 9, 2023, as Appl. No. 18/119,747.
Prior Publication US 2024/0305000 A1, Sep. 12, 2024
Int. Cl. H01Q 9/06 (2006.01); H01Q 21/30 (2006.01)
CPC H01Q 9/065 (2013.01) [H01Q 21/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A dipole antenna formed on a printed circuit board said printed circuit board having a vertical section and a horizontal section extending from the top portion of said vertical section, said dipole antenna comprising:
a balun element formed on said vertical section, on a first and a second copper layer of said printed circuit board;
a dipole arm formed on said horizontal section on said first and said second copper layer of said printed circuit board, said dipole arm having a first and a second branch, each branch extending horizontally in a direction opposite to the other branch, said first and second branch of said dipole arm having a corresponding first and second dipole copper strip formed on said first copper layer of said printed circuit board;
said horizontal section of said dipole arm having a first wider portion extending from the printed circuit board's vertical central axis equally in opposite directions along said horizontal axis, the first copper layer of said wider portion including a capacitive element conductive strip that is parallel to and electrically insulated from said first and second dipole copper strips, said horizontal section having a narrower portion extending along the dipole arms in both directions;
a capacitive plate attached to the end portion of said wider portion of said horizontal section on the same side as the second copper layer of said printed circuit board opposite said first copper layer of said printed circuit board, said capacitive plate having a rectangular bottom portion opposite said first and second dipole conductive strips defining a conductor overlap to form a capacitive element.