| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an antenna device which deals with a multi-band equal to or more than a dual band by one surface-mounted antenna, has no mutual interference, and has a wide transmission/reception frequency band. <P>SOLUTION: This antenna device is provided with a surface-mounted antenna having a substrate consisting of a dielectric material or a magnetic material, first radiation electrode formed on at least one surface of the substrate, grounding electrode formed on the substrate so as to directly connected or capacitance-coupled to the one end of the first radiation electrode, and a current-feeding electrode opposing the first radiation electrode at a distance; a mounting substrate for mounting the surface-mounted antenna; and a second radiation electrode 22 arranged on the surface of the substrate on which the surface-mounted antenna is not mounted. <P>COPYRIGHT: (C)2004,JPO</p> |
