US Patent 10446923 Antenna array with reduced mutual coupling effect

A mutual coupling reduction circuit is provided for an antenna array. The antenna array includes first and second antenna elements having first and second radiating bodies, respectively. The mutual coupling reduction circuit is disposed between the first and second radiating bodies to reduce mutual coupling between the antenna elements. Multiple mutual coupling reduction circuits may be provided between multiple radiating bodies. The impedance of the mutual coupling reduction circuit is configured to reduce the mutual coupling. The mutual coupling reduction circuit may be disposed in parallel with a polarization of the antenna elements.