Simulink based model of a non-planar Active Electronically Scanned Array (AESA)

Active Electronically Scanned Array (AESA) radar systems can steer the array beam pattern from one angle to another instantaneously. In this paper, a generic Simulink based model is proposed to simulate any AESA geometry. This includes the modelling of various building blocks, namely, Transmit Receive Module (TRM), a single antenna element and a combining network. The outputs of the model are the array sum, azimuth difference and elevation difference beam patterns. The proposed model is flexible in a sense that full control of the phase shifters and attenuators in the TRMs is possible to perform various functions. The output of the model is verified against CST simulation tool.