| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a mobile radio unit which is capable of enhancing antenna characteristics by sufficiently ensuring the height of a built-in antenna while attaining miniaturization of a casing. <P>SOLUTION: An antenna housing base plate 38, a circuit base plate 39 and a built-in antenna 36 are disposed in this order while being separated from each other so as not to be located on the same plane and are electrically connected. In an apparatus inverted attitude, the built-in antenna 36 and the antenna housing base plate 38 are disposed so that the space therebetween becomes larger at an upper end rather than at a lower end, and between the built-in antenna 36 and the antenna housing base plate 38, an area is provided in which the circuit base plate 39 does not exist, thereby ensuring the space between the built-in antenna 36 and the antenna housing base plate 38 that determines the height of the built-in antenna. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
