US 12,148,973 B2
Device for transmitting a signal to a waveguide
Gwendal Cochet, Brest (FR); Anne-Charlotte Amiaud, Élancourt (FR); Jean-Philippe Coupez, Brest (FR); Alexandre Manchec, Brest (FR); Thomas Merlet, Élancourt (FR); and Christian Person, Brest (FR)
Assigned to THALES, Courbevoie (FR); ELLIPTIKA, Brest (FR); and IMT ATLANTIQUE, Brest (FR)
Appl. No. 17/786,905
Filed by THALES, Courbevoie (FR); ELLIPTIKA, Brest (FR); and IMT ATLANTIQUE, Brest (FR)
PCT Filed Dec. 18, 2020, PCT No. PCT/EP2020/087101
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/123224, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 19 14748 (FR), filed on Dec. 18, 2019.
Prior Publication US 2023/0023880 A1, Jan. 26, 2023
Int. Cl. H01P 5/107 (2006.01); H01Q 13/18 (2006.01)
CPC H01P 5/107 (2013.01) [H01Q 13/18 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A signal transmission assembly comprising a waveguide and a device for transmitting a signal between a waveguide and a printed circuit board, the device comprising:
a. a first access means for the signal to be transmitted,
b. a second access means for the signal to be transmitted,
c. a conductor track forming the first access means,
d. a printed circuit board comprising a substrate, and
e. a transition element comprising:
i. an upper ground plane formed on the substrate of the printed circuit board,
ii. a lower ground plane for direct contact with the waveguide, the lower ground plane comprising a slot forming the second access means of the transmission device,
iii. means for delimiting a cavity between the upper ground plane and the lower ground plane,
either the upper ground plane or the lower ground plane being connected to the conductor track,
the waveguide is a waveguide having at least one rib along its length, the waveguide being arranged with respect to the lower ground plane so that the slot is substantially equidistant from the rib and from the top of the waveguide.