the present invention provides a surface - mounting type antenna comprising : a base member made of an insulating material , including a first major surface , a second major surface opposite to the first major surface , and a plurality of side surfaces extending between the first and second major surfaces ; a grounding electrode covering substantially the entire area of the first major surface of the base member ; a strip - like radiation electrode mostly disposed on the second major surface , the radiation electrode having a first end and a second end , the first end being served as an open - ended terminal ; a connecting terminal connected to the second end of the radiation electrode ; a power - supply electrode disposed in the vicinity of the open - ended terminal of the radiation electrode ; and a power - supply terminal connected to the power - supply electrode .