3-D Array Pattern Distortion Analysis

Abstract

Indian MST Radar antenna comprises of 1024 three-component Yagi-Uda receiving antennas masterminded in a 32 × 32 matrix over a territory of 130 m × 130 m. The antenna array is fed by 32 distributed transmitters whose peak output power varies from 15 to 120 kW. Because of different reasons a few number of transmitters are nonoperational making the linear subarray relating to these transmitters ineffectual. Also, inside a subarray, it is conceivable that a few components would not get the excitation motion because of the detached association or discontinuity issues in the feeder line. The paper talks about these outcomes in the thinning of the aperture, array pattern distortion, and the deviation of the excitation from the predefined Taylor distribution. The constantly expanding demand in the advancement of software for aperture thinned radiation pattern has spurred to model the present work. Matlab is used to perform the investigation and to plot the radiation designs in both principle planes and in three-dimensional view.