US 12,191,564 B2
Transmit-receive isolation for a dual-polarized MIMO antenna array
Jiantong Li, Plano, TX (US); Xinguang Xu, Allen, TX (US); Khurram Muhammad, Southlake, TX (US); and Gang Xu, Allen, TX (US)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jul. 28, 2022, as Appl. No. 17/815,908.
Claims priority of provisional application 63/227,196, filed on Jul. 29, 2021.
Prior Publication US 2023/0046675 A1, Feb. 16, 2023
Int. Cl. H01Q 1/52 (2006.01); H01Q 21/24 (2006.01)
CPC H01Q 1/523 (2013.01) [H01Q 21/24 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a substrate;
a first antenna panel coupled on the substrate and comprising an array of first antenna elements;
a second antenna panel coupled on the substrate and comprising an array of second antenna elements; and
an antenna isolator coupled on the substrate, the antenna isolator comprising a plurality of walls extending outwardly from the substrate along a length of the substrate between the first antenna panel and the second antenna panel, the antenna isolator configured to reduce wave propagation between the array of first antenna elements and the array of second antenna elements,
wherein the plurality of walls includes:
a T-shaped wall configured to reduce horizontal diffraction that extends along the length of the substrate from a first end of the substrate to a second end of the substrate, and
a first L-shaped wall positioned between the T-shaped wall and the first antenna panel that extends along the length of the substrate from the first end of the substrate to the second end of the substrate.