paper 150118001644

Abstract

Most recently the applications have been extended to treat the problems arising in the near zone of electrically large antennas such as the vital life-detection systems and noncontact microwave detection systems, where the objects under detection may locate in the near zone of antenna. A TD analytic solution to predict the transient radiation from a phased periodic array of elemental antennas is thus developed. The TD phenomena are investigated in this paper. The TD phenomena of Floquet modes in the quantity of field potentials with a transient impulse excitation in the current moments were examined. In this generalized analysis, one first considers a two dimensional finite array of current moments with phases impressed to radiate fields focused in the near zone of array aperture, where the focal field point can be arbitrarily selected.

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Hsi-Tseng Chou

Shih-Chung Tuan