Low specific absorption rate dual-band antenna structure

    公开(公告)号:US09735822B1

    公开(公告)日:2017-08-15

    申请号:US14488083

    申请日:2014-09-16

    CPC classification number: H04B1/3838 H04B1/40

    Abstract: Dual-band antenna structures and methods of operating the same of an electronic device are described. One apparatus includes a radio frequency (RF) feed and a dual-band antenna structure coupled to the RF feed at a feeding point and coupled to a ground plane at a grounding point. The structure includes a first loop antenna and a second loop antenna, both coupled to the feeding point and the grounding point. The first loop antenna radiates electromagnetic energy in a first resonant mode in a first frequency band and the second loop antenna radiates electromagnetic energy in a second resonant mode in a second frequency band and radiates electromagnetic energy in a third resonant mode in the first frequency band. Surface currents create a pair of hot spots of magnetic field.

    Dual-band antenna with grounded patch and coupled feed

    公开(公告)号:US09647337B1

    公开(公告)日:2017-05-09

    申请号:US14577585

    申请日:2014-12-19

    CPC classification number: H01Q5/328 H01Q5/335 H01Q5/364

    Abstract: Methods and systems for radiating electromagnetic energy with a patch antenna structure are described. A device may include a radio frequency (RF) feed and an antenna structure coupled to the RF feed. The antenna structure may include a ground plane, first and second conductors, and first and second impedance matching components. The first conductor may include an inner surface defining and at least partially surrounding a slot. The first and second impedance matching components may be coupled between the RF feed and the ground plane.

    Phase-controlled antenna with independent tuning capability
    13.
    发明授权
    Phase-controlled antenna with independent tuning capability 有权
    具有独立调谐功能的相控天线

    公开(公告)号:US09548535B1

    公开(公告)日:2017-01-17

    申请号:US13787631

    申请日:2013-03-06

    CPC classification number: H01Q3/34 H01Q1/243 H01Q9/42

    Abstract: Antenna structures and methods of operating the same of a phase-controlled antenna of an electronic device are described. A phase-controlled antenna includes a radio frequency (RF) feed, an antenna structured coupled to the RF feed and including a ground path coupled to a ground node, and a phase-controlling circuit coupled between the ground path and the ground node. The antenna structure is configured to operate at a resonant frequency in a first state, and the phase-controlling circuit is configured to introduce a phase shift in the antenna structure to change the resonant frequency of the antenna structure to a second resonant frequency in a second state.

    Abstract translation: 对电子装置的相位控制天线的天线结构及其操作方法进行说明。 相位控制天线包括射频(RF)馈电,耦合到RF馈电并且包括耦合到接地节点的接地路径的天线以及耦合在接地路径和接地节点之间的相位控制电路。 天线结构被配置为在第一状态下以共振频率工作,并且相位控制电路被配置为在天线结构中引入相移,以将天线结构的谐振频率在第二状态中改变为第二谐振频率 州。

    Multi-feed antenna with independent tuning capability
    14.
    发明授权
    Multi-feed antenna with independent tuning capability 有权
    具有独立调谐功能的多馈天线

    公开(公告)号:US09130279B1

    公开(公告)日:2015-09-08

    申请号:US13789455

    申请日:2013-03-07

    Abstract: Antenna structures and methods of operating the same of a multi-feed antenna of an electronic device are described. A multi-feed antenna includes a first antenna element coupled to a first tuner circuit that is coupled a first radio frequency (RF) feed, and a second antenna element coupled to a second tuner circuit that is coupled to a second RF feed. The first tuner circuit is programmable to independently adjust a first impedance of the first antenna element and the second tuner circuit is programmable to independently adjust a second impedance of the second antenna element.

    Abstract translation: 对电子设备的多馈电天线的天线结构及其操作方法进行说明。 多馈天线包括耦合到耦合到第一射频(RF)馈电的第一调谐器电路的第一天线元件和耦合到耦合到第二RF馈送的第二调谐器电路的第二天线元件。 第一调谐器电路是可编程的以独立地调整第一天线元件的第一阻抗,并且第二调谐器电路可编程以独立地调整第二天线元件的第二阻抗。

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