Analysis of periodic line arrays of phased dipoles with band-limited excitations
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KünyeUluışık, Ç. (2016). Analysis of periodic line arrays of phased dipoles with band-limited excitations. International Journal Of Rf And Microwave Computer-Aided Engineering, 26(4), 342-348. http://dx.doi.org/10.1002/mmce.20967
Radiation from periodic line arrays of sequentially excited electric current dipoles is investigated in time domain. The time domain Floquet wave representations are reviewed for a semi-infinite line array. In this study, the excitation function is chosen as a normalized Rayleigh pulse which does not contain significant low frequency components. The Floquet wave representation for band limited excitations includes a time consuming convolution operation which has to be performed numerically. To avoid the numerical convolution the normalized Rayleigh pulse is represented approximately via a set of linear/quadratic functions. This results in substantial reduction in the computation time since the convolution can be calculated analytically.