Antenna coupling model in receiving mode

In this paper, a new accurate model for evaluating coupling between antennas is presented, based in the conventional Z-Parameters model but including recently introduced new concepts about mutual impedance in receiving arrays. An array of two antennas can be modeled by a two port network and characterized by port impedances and mutual impedances between ports. This is the classical model of Z-Parameters which is defined for antennas in transmitting mode, but two receiving antennas present a different coupling mechanism. In this work mutual impedance approach of an antenna array in receiving mode has been introduced for achieving new accurate terminal voltage equations for receiving antennas. It is proposed a new receiving model for two element arrays and preliminary results are presented by simulation of two dipole array at 800 MHz and 2000 MHz.