PURPOSE: A stacked antenna is provided to control total length by coupling or separating a first engaging part and a second engaging part and to easily select a desire frequency band between two desire frequency bands. CONSTITUTION: A first engaging part(140a) is formed on one end among a plurality of loads. A second engaging part(140b) is formed on the other end among the plurality of loads. The first engaging part and the second engaging part are mutually coupled or separated. One load is located in order to be contiguous with the other load. The diameter of the first engaging part and the second engaging part is bigger than the diameter of the load. One of the first engaging part and the second engaging part comprises a coupling part of a male screw type. The other one of the first engaging part and the second engaging part comprises a coupling part of a female screw type.
