A digital TV antenna includes a grounding plane, a first radiation conductor, a second radiation conductor and a third radiation conductor. The grounding plane and the first radiation conductor are located in the first surface of a substrate. The second radiation conductor and the third radiation conductor are located in the second surface opposite to the first surface. Partial second radiation conductor covers the first radiation conductor to form an overlapping region. Partial third radiation conductor covers the first radiation conductor to form an overlapping region.