| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multiband antenna capable of converting a VSWR band into a high bandwidth in at least a DCS band, a PCS band, and an UMTS Band1 band, and thus capable of achieving compatibility with a plurality of transmission/reception systems in spite of a small size. <P>SOLUTION: In the multiband antenna, one end of a parallel resonance circuit is connected between a connection point of a radiation electrode with a short-circuit line and a feeding point of an inverse F antenna, the other end thereof is grounded, and at least a part of a reactance element of the parallel resonance circuit is formed by the short-circuit line. <P>COPYRIGHT: (C)2012,JPO&INPIT |
