| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an antenna apparatus which reduces the influence from the outside while reducing an antenna size. <P>SOLUTION: The antenna apparatus includes: a substrate 8; a base provided on the substrate 8; a conductive film formed on the substrate 8; a gap 5 for electrically dividing the conductive film into a first conductive film 6 and a second conductive film 7; a power feeding section provided on the substrate 8 and connected to the first conductive film 6; and a ground pattern 9 connected via a conductor pattern 11 to the second conductive film 7. The power feeding section, the first conductive film 6, the gap 5, the second conductive film 7, the conductor pattern 11 and the ground pattern 9 are connected in series in this order. When the capacitance component of the gap 5 is C, the inductor component of the second conductive film 7 is L<SB>1</SB>, and the inductor component of the conductor pattern 11 is L<SB>2</SB>, a frequency f is established by a predetermined relational expression. <P>COPYRIGHT: (C)2011,JPO&INPIT |
