Coordinate Transform Suitable for Row-by-Row Elevation Scanning and azimuth sector scanning planar Phased Array

For beam conical scanning of phased array, the existing analyses methods based on coordination transform are introduced briefly at first. Furthermore, a new coordination transform relation is proposed for the phased array with row-by-row scanning in elevation and sector scanning in azimuth. Based on the proposed transform, the scanning range are analyzed for the main lobe and grid lobe of planar phased array, and the design rules of planar phased array with the scanning are also provided.