| 摘要 |
PURPOSE:To realize not only a small and light-weight structure of an antenna but prevent the power switch from being unturned off, by storing a power source battery into a cavity of the antenna of a portable communication set whose antenna part is attacable and detachable. CONSTITUTION:A cavity is provided to an antenna conductor 1 to store the batteries 2a-2n in it. For instance, the positive pole of the battery is made touch the center contact 3A of the antenna plug with the negative pole connected to the external metallic fittings 4A of antenna plug via the antenna conductor 1, respectively. Then antenna plug 4A is connected to the plug rest 4B of the communication set main body 9, and thus the contact 3A is connected to the center contact 3B of the main body 9 to form an electric circuit. Otherwise, for instance, the contact 3B is floated up in terms of a high frequency by a chock 6. Then the circuits of the external metallic fittings 4A and 4B are matched with the input and output circuits of the main body 9 in order to form a return circuit of the power source. |
