Patent ID: 11942692
Assignee: CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
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.