Abstract:

The effect of element polarization difference of array antennas accounted for the plane distortion on its radiation performance is investigated. Based on the elements’ position in the case of distortion, a generic process of rotation transformation from the global spherical coordinates to the element local spherical coordinates is established by means of transforming the coordinates three times, thus getting the elements’ polarization pattern in global coordinates. Antenna elements’ position errors are also considered in the process of farfield calculation. Finally, some significative conclusions for engineering are obtained by the numerical simulated calculation of a 9×5 plane array.