Abstract: The present invention is to provide an antenna of an electronic device wherein an actuation member is disposed on a surface of a case of the electronic device the actuation member being operative to project from the case, a portion of an antenna module is enclosed by the actuation member so as to project such portion of the antenna module from the case for transmitting or receiving signals, a remaining portion of the antenna module is disposed within the case, and a distal end of the antenna module is coupled to a wireless transmission/reception module within the case. Since the portion of the module projected from the case is no more shielded by the case, the electronic device will then always have a good signal transmission/reception capability.