Simulating Array SNR & Effective Noise Figure in Dependance of Noise Coupling

Christian Findeklee¹, Randy Duensing², Arne Reykowski²

The effect of element coupling in receive arrays has been investigated for a long time. With new insights into noise coupling and array noise matching, we now can quantify this SNR reduction. Optimized matching is able to avoid SNR reduction for a target location; however, it may still yield significant SNR-loss in other areas. In our experiments, we demonstrate how inductive decoupling can increase the area of high SNR.