| 摘要 |
<p>PURPOSE: An antenna device is provided to improve receive sensitivity of electric waves in case of reducing the length of a load part by forming a head part into conductive material in order to transmit and receive the electric waves. CONSTITUTION: Rods of a bar shape of a rod part(110) receive electric waves. The electric waves can have various frequency bands according to a wireless communications apparatus which is used. The rod par can be used for receiving round wave digital multimedia broadcasting etc. The inside of the rod part is formed into a plurality of rods(111-113) having an empty bar shape. A first rod can be formed into a cylinder, a trigonal pillar, and a square pillar shape. The first rod is composed of an-elasticity substances. A second rod has a shape corresponding to the shape of the first rod. A third rod has a shape corresponding to the shape of the second rod.</p> |
