High-accuracy antenna

An embodiment of the invention discloses a high-accuracy antenna. Physical dimensions of the antenna are reduced by folding a radiation patch on a substrate, the purpose of antenna miniaturization isachieved, by means of the specific radiation patch structure, the antenna can cover frequency bands B1, B2 and B3 of high-precision Beidou (Beidou 2-generation) positioning satellite signals and 755-787MHz wireless communication frequency bands, so that the antenna can be used not only for receiving satellite signals, but also for wireless communication between ground facilities. 本发明实施例公开了种高精度天线，在基板上通过在辐射贴片折叠缩小天线物理尺寸，达到天线小型化的目的，且本发明提供的天线通过特定的辐射贴片结构能够覆盖高精度北斗(北斗二代)定位卫星信号的B1、B2和B3频段，以及755MHz～787MHz的无线通信频段，使得该天线既可用于卫星信号接收，又可用于地面设备之间的无线通信。