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    • 4. 发明专利
    • Portable terminal
    • JP5341987B2
    • 2013-11-13
    • JP2011510373
    • 2010-04-23
    • 京セラ株式会社
    • 勝司 森下
    • H01Q1/24H01Q1/08H01Q9/14H01Q9/16
    • H01Q1/243H01Q9/14H01Q21/28
    • Provided is a portable terminal which is provided with a first case, a second case, and a connecting section which connects together the first case and the second case, and has less deterioration of antenna sensitivity. The portable terminal has the first case (2), the second case (3), the connecting section (4), a first circuit section (32) disposed in the first case (2), a first conductive section (31) disposed in the first case (2), a second conductive section (33) disposed in the second case (3), a third conductive section (34) disposed in the connecting section (4), and a first electronic component (61) disposed adjacent to the first conductive section (31) in the length direction of the first case (2) in the first case (2). The first length (X1), which is obtained from the sum of the path length of the signals in the band of a first frequency (f1) in the first conductive section (31) and the path length of the signals in the band of the first frequency (f1) in the first electronic component (61), is substantially the same as the second length (X2), which is obtained from the sum of the path length of the signals in the band of the first frequency (f1) in the second conductive section (33) and the path length of the signals in the band of the first frequency (f1) in the third conducive section (34).
    • 5. 发明专利
    • Antenna having tunable operation frequency with monopole and loop combined with each other
    • 具有与每个其他组合的单环和环路的可操作频率的天线
    • JP2010239246A
    • 2010-10-21
    • JP2009082770
    • 2009-03-30
    • Fujitsu Ltd富士通株式会社
    • HOSSAIN MD GOLAM SORWARYAMAGASHIRO HISASHI
    • H01Q21/30H01Q1/38H01Q7/00H01Q9/14
    • H01Q1/243H01Q9/14H01Q9/42
    • PROBLEM TO BE SOLVED: To provide an antenna tunable to respond to a plurality of frequency bands over a broadband. SOLUTION: An end of a band arm 102 is connected to an antenna feed part 104. An adjustment arm 101 includes a switched capacitor bank 103 forming an electric loop between an edge of a grounding surface 105 and itself, having an end connected to the antenna feed part 104, and connecting the end and the opposite-side end to an edge of the grounding surface by a plurality of switch branches to make the circumferential length of the electric loop variable. The circumferential length of the band arm 102 and that of the adjustment arm 101 are adjusted so that a first resonance frequency formed by the band arm 102 is set higher than a second resonance frequency formed by the adjustment arm 101 while the switched capacitor bank 103 is not connected, and the circumferential length of the electric loop is maximized and set lower than a third resonance frequency formed by the adjustment arm 101 while the switched capacitor bank 103 is connected. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供可以通过宽带来响应多个频带的天线。 解决方案:带臂102的端部连接到天线馈送部分104.调节臂101包括开关电容器组103,其形成接地表面105的边缘与其自身之间的电路,其端部连接 到天线馈送部分104,并且通过多个开关分支将端部和相对侧端部连接到接地表面的边缘,以使电路的圆周长度变化。 调节带臂102和调节臂101的圆周长度,使得由带臂102形成的第一共振频率设定为高于由调节臂101形成的第二谐振频率,而开关电容器组103为 不连接,并且在连接开关电容器组103的同时,使电路的圆周长度最大化并且设定为低于由调节臂101形成的第三谐振频率。 版权所有(C)2011,JPO&INPIT