发明名称 Portable wireless device
摘要 A mobile wireless device enables effective use of space in a case while reducing degradation of antenna gain and maintaining communication quality even if a plurality of antennas having different frequency bands are arranged close to one another. A magnetic antenna has a first switch unit, a second switch unit, and a concentrated constant circuit which are added to a wiring pattern at the side near to a main antenna, so that a first path and a second path can be selected. Under a predetermined condition, a CPU controls the first switch and the second switch to electrically connect terminal (A1) to terminal (B1) and electrically connect terminal (A2) to terminal (B2), thereby forming the first path; and electrically connect terminal (A1) to terminal (C1) and electrically connect terminal (A2) to terminal (C2), thereby forming the second path connected via the concentrated constant circuit.
申请公布号 US8489109(B2) 申请公布日期 2013.07.16
申请号 US20080593889 申请日期 2008.03.28
申请人 WAKU KENJI;KOYAMA TADASHI;WATANABE KUNIHIKO;NISHIZONO MITSUHIRO;MORISHITA KATSUJI;IWANAGA TAKESHI;TOGASHI DAISUKE;KYOCERA CORPORATION 发明人 WAKU KENJI;KOYAMA TADASHI;WATANABE KUNIHIKO;NISHIZONO MITSUHIRO;MORISHITA KATSUJI;IWANAGA TAKESHI;TOGASHI DAISUKE
分类号 H04W72/00;H04B1/04 主分类号 H04W72/00
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