| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multi-band antenna for reducing a return loss in a frequency region between resonance frequencies. <P>SOLUTION: A coupling resonance configuration section configured with a main short-circuit element 10, a sub radiation element connection part 18, a sub radiation element bent part 17, and a sub radiation element root part 19 wherein a sub radiation element 14 which is connected with a sub short-circuit element 16 and which has a second resonance frequency f<SB>2</SB>is connected to the main short-circuit element 10 of a first inverted-F antenna 100 with a first resonance frequency f<SB>1</SB>comprising a main radiation element 8, a feeding element 12, and the main short-circuit element 10, causes a coupling resonance between the main radiation element 8 and the sub radiation element 14. <P>COPYRIGHT: (C)2008,JPO&INPIT |
