Design of Low Profile Broadband Dual-polarized Microstrip Patch Antenna Array

Novel vehicle technology has become a hot research topic in the aerospace field in recent years. In order to improve the aerodynamic shape and stealth performance, a conformal antenna must be used. This puts strict requirements on the longitudinal height, volume and weight of the antenna. At the same time, the relevant electronic equipment on the aircraft platform also puts forward higher demands on the antenna for broadband, dual polarization, high gain, and low side lobes. Therefore, the low-profile, miniaturized broadband dual-polarization conformal antenna has become a research hotspot in recent years. This paper presents a form of double-layer patch micro-strip antenna with strip-line fed H-shaped slot coupled feed, which has broadband dual-polarization characteristics. At the same time, an 8x8 array antenna was designed. The test results show that the bandwidth of the standing wave less than 1.5 is 25%, and the overall height is 1.3mm, which is Very suitable for electronic equipment of novel aircraft platform.