| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an antenna having a structure capable of obtaining an SAR reducing action, as to the antenna carried in various radio devices. <P>SOLUTION: The antenna compatible with two frequencies has an element structure in which a first element part 5 and a second element part 6 are connected to a loop part 4 for connecting between a feeder part 2 and a grounding part 3, and auxiliary element part 20 is connected to the loop part 4 to match λ/4 in the transmission band of a high frequency. Accordingly, composite resonance is caused on the auxiliary element part 20 side during transmission by the transmission band and the peak of current density concentrated on the vicinity of the feeding part 2 becomes small, and an action by which a local average SAR during transmission is reduced can be obtained as a result. <P>COPYRIGHT: (C)2010,JPO&INPIT |
