Design and Analysis of Phased Antenna Array with Low Sidelobe by Fast Algorithm

In this paper, a high performance phased antenna array is designed. Compared with the traditional ones, this antenna array has a lower sidelobe characteristic of down to −16 dB. At different scanning angles, the comparison between calculated and measured results of S-parameters and Eand H-plane antenna patterns is made and a very good agreement is found. Moreover, the precorrected fast Fourier transform method is employed to accelerate the entire computational process to reduce significantly both the memory requirement and computational time, but to increase the design accuracy and optimization efficiency.