Dual-Polarized Wide-Angle Scanning Phased Array Based on Mutimode Patch Elements

Abstract

In this letter, we report the results of an investigation of multimode microstrip patch resonators and their applications for designing dual-polarized wide-angle scanning phased arrays. The proposed multimode patch element can provide broadside (TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">01</sub> or TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">10</sub> modes) and monopole-like (TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">21</sub> mode) patterns which are combined to obtain a joint wide-beam coverage in both xoz and yoz planes. By interactively selecting these modes, the formed 8 × 8 planar phased array can scan its main beam from -64° to +64° in the two orthogonal planes. Measured results validate some notable features, such as the dual-plane wide-angle scan with the same polarization and high realized gain with low sidelobe levels.