Decoupling method using branch shape without connecting between MIMO multiple antennas

Recently, MIMO (Multiple-Input Multiple-Output) technology is introduced in small terminals. If MIMO technology is mounted on a compact body, decoupling methods must be needed. In preceding studies, a decoupling method of 2×2 MIMO by connecting two antennas has been developed. This paper proposes a decoupling method using branch shape of 2×2 MIMO without connecting two antennas.