| 摘要 |
<p>A small, thin, wide-range, and high-sensitiviy antenna device easy to set impedance characteristics. A first platelike antenna element is disposed above a conductor ground plate including a first terminal electrically connected to the conductor ground plate, a second terminal electrically connected to the radio apparatus body at a predetermined distance from the first terminal, and at least a radiation conductor element. The second platelike antenna element includes a conductor ground plate and at least a radiation conductor element not directly connected to the first antenna element. At least a radiation conductor element of the second element is located between the conductor ground plate and the first antenna element. The dimensions of the conductor ground plate, first antenna element, and second element and the gap among them are set according to desired impdance characteristics and band width.</p> |
