Abstract

The sub-system failure can cause the performance of one-dimension active phased array to reduce, including the loss of gain and depravation of side-lobe level. Considering the normal distribution of random error on antenna elements of amplitude and phase, the variety of array performance is analyzed versus the antenna element failure, sub-array failure and TR module failure. Simulation results show that the deterioration of gain is less than that of side-lobe level, and the discussion is beneficial to evaluation of performance of phased array with sub-system capability working down, and also advance project design.

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