external antenna with extension possibility

The present invention relates to an external antenna is designed to simplify storage and mobile to allow expansion and contraction rod antenna in the external antenna to use to connect to the antenna port provided in various terminals such as mobile phones, notebooks, TV, PDA, navigation. In general, the conventional external antenna was a risk of the storage or portable inconvenience and damage during movement because the installation and hold the antenna rod of the length required for transmission and reception in the stationary case, as shown in FIG. Also, if you are using a different frequency band has had to use a non-issue. Accordingly, the invention is an antenna in accordance with the case when not in use is used as been made, in use, as shown in Figures 2 and 5, pulling the antenna rod in order to solve the various problems of the above, and to push the antenna rod by adjusting the length to provide a retractable external antenna can be maintained in a state capable of exhibiting the antenna characteristics up to it is an object.