| 摘要 |
PROBLEM TO BE SOLVED: To suppress the deterioration of characteristics even if a human body approaches by employing a comparatively simple structure using a single antenna element. SOLUTION: Either a power feeder 43 of an antenna unit 40 equipped to a portable radio terminal device or a short circuit 44 thereof is constituted to have a plurality of lines. A current flowing through the power feeder 43 separately flows through conductive wires 45a, 45b, and a current flowing through the short circuit 44 separately flows through conductors 46a, 46b. COPYRIGHT: (C)2006,JPO&NCIPI
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