US Patent 11431104 Antenna array with self-cancelling conductive structure

An antenna array capable of full duplex communication is described. The antenna array includes a first dual polarity antenna element and a second dual polarity antenna element. A first conductive structure, extends between the first and second antenna elements along a diagonal axis in common between the first antenna element and the second element, and forms a coupling path between the first and the second antenna elements such that at least a portion of a signal generated by the first antenna element is coupled, via the coupling path, to the second antenna element to at least reduce cross polarity mutual coupling between the first antenna element and the second antenna element.