On the Equivalence of Two Formulations for Noise Correlation in Arrays Made of Imperfect Conductors

For the case of high-conductivity antennas, an expression is provided for the real part of the array impedance matrix. That expression is exploited to link two different expressions available in the literature for the noise correlation due to the lossy antennas. The array is assumed reciprocal and placed in a lossless near-field environment at antenna temperature.