US 11,942,692 B2
In-band full duplex MIMO antenna and transceiver using the antenna
Han Lim Lee, Seoul (KR); Min Gyu Kim, Seoul (KR); Ji Ho Lee, Seoul (KR); and Jin Woo Kim, Seoul (KR)
Assigned to CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION, Seoul (KR)
Filed by CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION, Seoul (KR)
Filed on Aug. 19, 2021, as Appl. No. 17/406,770.
Claims priority of application No. 10-2020-0170775 (KR), filed on Dec. 8, 2020.
Prior Publication US 2022/0181792 A1, Jun. 9, 2022
Int. Cl. H04B 7/04 (2017.01); H01Q 21/24 (2006.01); H04B 7/0413 (2017.01); H04L 5/14 (2006.01)
CPC H01Q 21/24 (2013.01) [H04B 7/0413 (2013.01); H04L 5/14 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An in-band full-duplex Multiple-Input and Multiple-Output (MIMO) antenna comprising:
a substrate; and
transmission antenna elements and reception antenna elements separately coaxially disposed on a same plane of the substrate,
wherein the transmission antenna elements have a first polarization characteristic, and the reception antenna elements have a second polarization characteristic different from the first polarization characteristic,
wherein among antenna elements disposed outside a coaxial structure, a pair of antenna elements disposed in a first quadrant and a third quadrant of the substrate are inclined left and symmetric to each other and another pair of antenna elements disposed in a second quadrant and a fourth quadrant of the substrate are inclined right and symmetric to each other, and
wherein among antenna elements disposed inside the coaxial structure, a pair of antenna elements disposed at an upper portion and a lower portion on the substrate are inclined right and symmetric to each other and another pair of antenna elements disposed at a left portion and a right portion on the substrate are inclined left and symmetric to each other.