US 12,170,405 B2
Cavity-backed antenna element and array antenna arrangement
Stefan Johansson, Romelanda (SE); and Hawal Rashid, Kungälv (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Jan. 4, 2023, as Appl. No. 18/092,979.
Application 18/092,979 is a continuation of application No. 17/052,576, granted, now 11,552,411, previously published as PCT/EP2018/061626, filed on May 4, 2018.
Prior Publication US 2023/0223705 A1, Jul. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01Q 21/00 (2006.01); H01Q 1/52 (2006.01); H01Q 9/04 (2006.01)
CPC H01Q 21/0025 (2013.01) [H01Q 1/523 (2013.01); H01Q 9/0414 (2013.01); H01Q 9/0435 (2013.01); H01Q 9/045 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An antenna element comprising:
a lower conducting plane;
an upper conducting plane;
an upper dielectric layer structure positioned between the conducting planes, wherein
the upper dielectric layer structure comprises a plurality of conducting vias that electrically connect the conducting planes to each other and circumvent an upper radiating patch formed in, below, or above the upper conducting plane,
the conducting vias circumvent at least one intermediate radiating patch that is formed in the upper dielectric layer structure, and
a lowest intermediate radiating patch that is closest to the lower conducting plane is connected to a feed arrangement that comprises at least one feeding probe that extends via a corresponding aperture in the lower conducting plane and is electrically connected to the lowest intermediate radiating patch.