Dual polarized microstrip antenna array for X-band radar applications

The design and development of an aperture-coupled dual-polarized patch antenna array operating at a frequency of 9.5 GHz for X-band radar application is presented in this paper. The linear array consists in connecting in series the 4-port radiating element in series. These antennas exhibit low profile as well as low cross polarization (XP) radiation and low sidelobe levels (SLL).