Null points adjusting method providing low sidelobe patterns in conformal array antennas

A novel pattern synthesis method (null points adjusting method) for providing a low sidelobe pattern in a conformal array antenna is presented. This method is based on the principle that the level of sidelobe between null points can be determined by controlling their positions. The usefulness of this method is verified by synthesizing a low sidelobe pattern of a hemispherical array antenna. Using the proposed method, even if in a large-scale or complexly shaped conformal array antenna which cannot be characterized by a single curve, the optimum excitation amplitude and phase of elements can be easily determined.<>