ANTENNA SYSTEM AND ASSEMBLY METHOD THEREOF, AND BASE-STATION ARRAY ANTENNA

An antenna system includes: a radiating sheet provided with an elastic first fixing portion; an insulating bracket including a bracket body, and mounting portions, a second fixing portion and a first assembling portion; coupling circuit sheets, each of which is provided with a coupling circuit at a single side thereof and fixed in a slide rail of the mounting portion in such a manner that a feeding pin at a bottom of the coupling circuit sheet extends out of the one mounting portion; and a feeding network circuit board. In the antenna system and an assembly method thereof, and a base station array antenna, there is various one-time fixing structures, which makes the assembly to be simple and efficient, and there are few feeding welding points, which is suitable for automatic production.