Bowtie monopole antenna and communication device using same
    1.
    发明申请
    Bowtie monopole antenna and communication device using same 有权
    Bowtie单极天线和通信设备使用相同

    公开(公告)号:US20050280584A1

    公开(公告)日:2005-12-22

    申请号:US10872860

    申请日:2004-06-21

    CPC分类号: H01Q1/087 H01Q1/22 H01Q9/40

    摘要: A bowtie monopole antenna is fabricated of a sheet metal radiating body 102 that is triangular shaped, and having a longitudinal dimension and axis (106) and a width (108). One corner of the radiating body is tapered to form a feed point (104). The length dimension determines the antenna's lowest resonance frequency while the taper created by the width determines the highest point of resonance. For using the bowtie monopole antenna in a communication device, the radiating body (102) is folded or wrapped around towards itself To facilitate the folding or wrapping a mounting substrate (202) is used. The substrate may be provided with retaining features (206) to capture the antenna assembly within the communication device.

    摘要翻译: 弓形单极天线由三角形的金属片辐射体102制成,并且具有纵向尺寸和轴线(106)和宽度(108)。 辐射体的一个角部是锥形的以形成馈送点(104)。 长度尺寸确定天线的最低共振频率,而由宽度产生的锥度决定了最高共振点。 为了在通信设备中使用bowtie单极天线,辐射体(102)被折叠或缠绕在其周围。为了便于折叠或包裹使用安装基板(202)。 衬底可以设置有保持特征(206)以捕获通信设备内的天线组件。

    Planar inverted-F antenna with extendable portion

    公开(公告)号:US20060012529A1

    公开(公告)日:2006-01-19

    申请号:US10892858

    申请日:2004-07-16

    IPC分类号: H01Q1/24

    摘要: An antenna structure (126) that includes a Planar Inverted-F Antenna (PIFA) (104) and an extendable portion such as a whip element (106). The PIFA (104) operates normally when the extendable portion (106) is retracted and upon extension, an electrical contact is made between the extendable portion (106) and the end (122) of the PIFA (104) that is electrically opposite, i.e., furthest along the electrically conductive path of the PIFA, from the feed structure (202, 208) for the PIFA (104). The electrical length of the composite antenna (126) is then substantially equal to the sum of the electrical length of the PIFA (104) and extendable portion (106). An embodiment disconnects the ground path of the PIFA feed structure upon extension of the extendable portion (106) to provide constant input impedance.