MOBILE COMMUNICATION DEVICE AND METHOD FOR ADAPTIVE RF FRONT-END TUNING
    2.
    发明申请
    MOBILE COMMUNICATION DEVICE AND METHOD FOR ADAPTIVE RF FRONT-END TUNING 审中-公开
    用于自适应RF前端调谐的移动通信设备和方法

    公开(公告)号:US20160301465A1

    公开(公告)日:2016-10-13

    申请号:US15190747

    申请日:2016-06-23

    Abstract: Examples of a system and method for adaptively tuning a radio frequency (RF) front-end are generally described herein. In some examples, the frequency of a transmit signal of RF front-end circuitry is swept in at least a part of the RF transmit band. RF power in a receiver is detected as a function of the RF frequency of the transmit signal to determine a location of at least one tunable notch or other band stop element in the frequency domain. information from the detected RF power is determined as a function of the RF frequency of the transmit signal. The RF front-end circuitry is adjusted to a selected frequency response using the determined information.

    Abstract translation: 这里一般地描述用于自适应地调谐射频(RF)前端的系统和方法的示例。 在一些示例中,RF前端电路的发射信号的频率在RF发射频带的至少一部分中扫描。 作为发射信号的RF频率的函数检测接收机中的RF功率,以确定频域中的至少一个可调陷波或其它频带阻止元件的位置。 来自检测到的RF功率的信息被确定为发射信号的RF频率的函数。 使用确定的信息将RF前端电路调整到选定的频率响应。

    Antenna card for controlling and tuning antenna isolation to support carrier aggregation
    6.
    发明授权
    Antenna card for controlling and tuning antenna isolation to support carrier aggregation 有权
    用于控制和调谐天线隔离以支持载波聚合的天线卡

    公开(公告)号:US09537210B2

    公开(公告)日:2017-01-03

    申请号:US14668515

    申请日:2015-03-25

    Abstract: An apparatus and method to provide isolation between a first antenna and a second antenna, each of which is located on a ground plane. A slot that is tunable by a variable reactance is located on the ground plane, the slot not being appreciably resonant at the operating frequency of the first antenna and the second antenna. The antennas operate in an orthogonal mode. Varying the slot reactance varies the electrical distance over which the coupling current between the two antennas flows. Increased RF isolation to a desired magnitude results by maintaining the orthogonality at desired bands. The RF isolation can be measured and a departure from the desired magnitude of isolation causes the reactance to be varied to increase the RF isolation back to the desired magnitude. The antennas and the slot are placed at locations on the ground plane of high current density.

    Abstract translation: 一种在第一天线和第二天线之间提供隔离的装置和方法,每个天线都位于地平面上。 通过可变电抗可调谐的槽位于接地平面上,槽不会在第一天线和第二天线的工作频率处明显地共振。 天线以正交模式工作。 改变时隙电抗会改变两个天线之间的耦合电流流过的电距离。 通过将正交性保持在期望的频带,将RF隔离增加到期望的幅度。 可以测量RF隔离,并且与期望的隔离幅度的偏离导致电抗变化以将RF隔离增加到期望的幅度。 天线和槽被放置在高电流密度的接地平面上的位置。

    Mobile communication device and method for adaptive RF front-end tuning
    7.
    发明授权
    Mobile communication device and method for adaptive RF front-end tuning 有权
    用于自适应RF前端调谐的移动通信设备和方法

    公开(公告)号:US09432112B2

    公开(公告)日:2016-08-30

    申请号:US14108965

    申请日:2013-12-17

    Abstract: Examples of a system and method for adaptively tuning a radio frequency (RF) front-end are generally described herein. In some examples, the frequency of a transmit signal of RF front-end circuitry is swept in at least a part of the RF transmit band. RF power in a receiver is detected as a function of the RF frequency of the transmit signal to determine a location of at least one tunable notch or other band stop element in the frequency domain. Information from the detected RF power is determined as a function of the RF frequency of the transmit signal. The RF front-end circuitry is adjusted to a selected frequency response using the determined information.

    Abstract translation: 这里一般地描述用于自适应地调谐射频(RF)前端的系统和方法的示例。 在一些示例中,RF前端电路的发射信号的频率在RF发射频带的至少一部分中扫描。 作为发射信号的RF频率的函数检测接收机中的RF功率,以确定频域中的至少一个可调陷波或其它频带阻止元件的位置。 来自检测到的RF功率的信息被确定为发射信号的RF频率的函数。 使用确定的信息将RF前端电路调整到选定的频率响应。

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