Double-frequency antenna

The utility model discloses a dual band antenna, which comprises a feed-in part. A feed-in part is arranged on the feed-in part; one end of the feed-in part bends and extends a main interconnecting piece; a lateral edge of the main interconnecting piece extends a radiation base that bends and extends an extension part; the upper lateral edge of the extension part extends an end interconnecting piece; the upper edge of the end interconnecting piece bends and extends a end radiation part; the other side of the main interconnecting piece extends a loop extension part; a edge of the loop extension part bends and extends a loop interconnecting piece; the end of the loop interconnecting piece bends and extends a ground plate; the ground plate is provided with a ground point. The dual band antenna of the utility model can not only send and receive the electromagnetic signals of two frequency bands, but also increase the frequency range of high frequency bands to satisfy the development requirement of the present com