WiFi omnidirectional antenna with filtering function

The utility model discloses a WiFi omnidirectional antenna with a filtering function, which comprises a dielectric substrate, the upper surface of the dielectric substrate is provided with a feeder line and two groups of zigzag radiation patches symmetrically arranged on two sides of the feeder line, the lower surface of the dielectric substrate is provided with a trapezoidal radiation patch, a low-frequency filtering assembly and a high-frequency filtering assembly, the tail end of the feeder line is connected with the trapezoidal radiation patch; the low-frequency filtering assembly comprises two semicircular patches which are symmetrically arranged and provided with openings, and the two semicircular patches are connected with the two sets of zigzag radiation patches respectively; the high-frequency filtering assembly comprises a plurality of resonant rings with openings. 本实用新型公开了一种具有滤波功能的WiFi全向天线，包括介质基板，所述介质基板的上表面设有馈电线和两组对称布置于馈电线两侧的锯齿形辐射贴片，所述介质基板的下表面设有梯形辐射贴片、低频滤波组件和高频滤波组件，其中，所述馈电线的末端与梯形辐射贴片相连接；所述低频滤波组件包括两