Lightweight, wideband, amplitude-tapered, linearly-polarized, dual-axis monopulse, ku-band patch antenna array for SAR

This paper reports a new lightweight, amplitude-tapered, wideband, linearly-polarized, dual-axis monopulse passive antenna array for synthetic aperture radar (SAR) applications. The 16 times 16 element patch array aperture is 197.7 cm
²
(140.61 mm from antenna edge to antenna edge in both orthogonal directions). The array is 2.98 mm thick and provides 17% instantaneous bandwidth in Ku-band. It is easily manufactured using photolithographic etching techniques.