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Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation
For active receiving arrays with complex receiver chains, nonreciprocal components in the beamforming network, or digitally sampled and processed output signals, existing transmit-based antenna terms such as gain and radiation efficiency cannot be directly applied. Using the reciprocity principle to obtain an equivalence between the total power radiated by a transmitting antenna and the noise power at the output of a receiving antenna, a new set of more general, receiverspecific antenna termsdoi:10.1109/aps.2012.6348696 fatcat:u2e7tpaabbbyvhs7ym2u42stau