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    • 4. 发明申请
    • WIRELESS TRANSCEIVER WITH SWITCH TO REDUCE HARMONIC LEAKAGE
    • 带开关的无线收发器减少谐波泄漏
    • US20170026136A1
    • 2017-01-26
    • US15214727
    • 2016-07-20
    • SKYWORKS SOLUTIONS, INC.
    • Philip H. ThompsonSteven T. SeizRoman Zbigniew ArkiszewskiMatthew Lee BanowetzDuane A. Green
    • H04B15/00H04B1/40H04B1/00
    • H04B1/525H04B1/006
    • Disclosed herein are wireless transceivers with switches to reduce harmonic leakage. In some embodiments, a transmitter system includes a power amplification system including a first power amplifier configured to amplify a signal at a first cellular frequency band and a second power amplifier configured to amplify a signal at a second cellular frequency band. The transmitter includes a switch coupled between an output of the second power amplifier and a ground potential. The transmitter includes a controller configured to, based on a band select signal, control the switch and selectively enable or disable each of the first power amplifier and the second power amplifier. Selective control of the switch can reduce harmonic leakage compared to a system that does not include the disclosed switches and controls.
    • 这里公开了具有减少谐波泄漏的开关的无线收发器。 在一些实施例中,发射机系统包括功率放大系统,功率放大系统包括配置成放大第一蜂窝频带的信号的第一功率放大器和被配置成在第二蜂窝频带放大信号的第二功率放大器。 发射机包括耦合在第二功率放大器的输出端和接地电位之间的开关。 发射机包括控制器,被配置为基于频带选择信号来控制开关并且选择性地启用或禁用第一功率放大器和第二功率放大器中的每个。 与不包括公开的开关和控制器的系统相比,开关的选择性控制可以减少谐波泄漏。