| 摘要 |
<p>A portable radio device capable of ensuring high antenna performance and high antenna gain. In an antenna structure that ensures a specified band by means of an antenna element (11) and a parasite element (16), the antenna element (11) is mounted on the inner side surface of an upper enclosure case (3) and the parasite element (16) on the outer side surface of the case (3) so that they are disposed between the case (3) and a panel (4) attached to the outer side of the case (3), thereby keeping the distance between the parasite element (16) and metal components inside an upper enclosure (1). In addition, during communicating, the parasite element (16) for performing a waveguide operation is located farther from a human body than the antenna element (11) to thereby intensify radiation in a direction opposite to the human body.</p> |
