Multi-frequency printed antenna

The utility model relates to a multi-frequency printed antenna, which comprises a radiating body and a grounding body isolated from the radiating body. The radiator is provided with a feed-in part, a first radiation part and a second radiation part, wherein the first radiation part obliquely extends from the right side of the feed-in part to the upper right side, and the second radiation part extends from the right side of the feed-in part to the right side, and the path of the second radiation part is in an inverted-L shape. And the inner side edge of the second radiation part is isolated from the tail end edge of the first radiation part. And the grounding body is positioned on the left side of the radiating body and is provided with a grounding part, a first extension part which obliquely extends from the top of the grounding part to the right upper part, and a second extension part which upwards extends from the top of the grounding part and has an inverted L-shaped path. And the inner side edge of the se