Patent ID: 7983645

Claim:
A method for radio reception with multiple antennas using N antennas, where N is an integer greater than or equal to 2, the method comprising: converting electromagnetic signals to electrical signals using the N antennas; transmitting said electrical signals from the N antennas to the input terminals of one or more multiple-input-port and multiple-output-port amplifiers, through one or more transmission devices, each of said transmission devices behaving as a passive linear circuit, each of said multiple-input-port and multiple-output-port amplifiers having at least two input ports and at least two output ports, each of said input ports of each of said multiple-input-port and multiple-output-port amplifiers receiving the electrical signals from a different antenna among said N antennas; amplifying using said multiple-input-port and multiple-output-port amplifiers, each of said multiple-input-port and multiple-output-port amplifiers presenting, in a known frequency band, a loaded input admittance matrix approximating a wanted admittance matrix, said wanted admittance matrix being a non-diagonal and invertible square matrix; and processing the signals delivered by said multiple-input-port and multiple-output-port amplifiers.