Low-cost high-gain GNSS metal plate antenna

The utility model discloses a low-cost high-gain GNSS metal plate antenna, which comprises a metal radiation sheet, a metal bottom plate, a metal side plate, an SMA radio frequency seat and nylon isolation columns, the metal radiation sheet and the metal bottom plate are square metal plates, the metal side plate is a rectangular metal plate, the metal radiation sheet is arranged above the metal bottom plate through the nylon isolation columns, and the SMA radio frequency seat is arranged above the metal bottom plate through the nylon isolation columns. The metal side plate is arranged on the side surface of the metal bottom plate, the SMA radio frequency seat is arranged on the metal side plate, and an inner core of the SMA radio frequency seat is welded on the metal radiation sheet. According to the utility model, feed is carried out through a side feed method, the requirements of high gain, large bandwidth, light weight and low cost of the GNSS antenna are realized, and the whole antenna is convenient to in