US 12,136,773 B2
Monopole wire-patch antenna with enlarged bandwidth
Kaoutar Allabouche, Grenoble (FR); Serge Bories, Grenoble (FR); and Christophe Delaveaud, Grenoble (FR)
Assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
Filed by COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
Filed on Dec. 22, 2022, as Appl. No. 18/086,812.
Claims priority of application No. 2114355 (FR), filed on Dec. 23, 2021.
Prior Publication US 2023/0208038 A1, Jun. 29, 2023
Prior Publication US 2024/0030610 A2, Jan. 25, 2024
Int. Cl. H01Q 9/04 (2006.01); H01Q 1/27 (2006.01); H01Q 1/48 (2006.01)
CPC H01Q 9/0457 (2013.01) [H01Q 1/27 (2013.01); H01Q 1/48 (2013.01); H01Q 9/0421 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A wire-patch antenna comprising:
a ground plane;
a capacitive roof placed facing the ground plane at a predetermined distance of separation;
a probe feed;
at least one electrically conductive short-circuiting wire linking the capacitive roof and the ground plane, the short-circuiting wire being intended to excite a first resonant mode at a first resonant wavelength (λ1, λ′1);
at least one electrically conductive impedance-matching wire electrically connecting the conductive short-circuiting wire and the probe feed so as to create a parasitic inductor (Lpar);
the end of the probe feed being separated from the capacitive roof by a volume of dielectric so as to create a parasitic capacitive element (Cpar);
the parasitic capacitive element (Cpar) and the parasitic inductor (Lpar) forming a parallel LC circuit allowing a second resonant mode to be excited at a second resonant wavelength (λ2) shorter than the first resonant wavelength (λ1, λ′1).