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    • 5. 发明公开
    • 증폭기, RF 증폭기 및 이를 포함하는 전자 장치
    • 多路输出功率模式放大器
    • KR1020080065552A
    • 2008-07-14
    • KR1020080002151
    • 2008-01-08
    • 아바고 테크놀로지스 와이어리스 아이피 (싱가포르) 피티이 리미티드
    • 전문석김정현
    • H03F1/02
    • H03F1/0211H03F1/56
    • An amplifier, an RF(Radio Frequency) amplifier and an electronic device having the same are provided to reduce a manufacturing cost and a size thereof by controlling a power mode of a power amplifier without using a switch. An amplifier includes a high power signal path, a low power signal path, a bypass signal path. Any RF switch is not provided between an input terminal(101) and the bypass signal path. An impedance matching and a power distribution network(102) is installed between the input terminal and the high and low power signal paths, respectively. The impedance matching and power distribution network provides a half of the power of the input signal to the bypass signal path. The impedance matching and power distribution network provides a half of the power of the input signal to one of the high power signal path and the low power signal path. A power amplifier bypass network(112) transmit the input signal to a low output terminal having a low gain or no gain.
    • 提供放大器,RF(射频)放大器和具有该放大器的电子设备,以通过在不使用开关的情况下控制功率放大器的功率模式来降低制造成本和尺寸。 放大器包括高功率信号路径,低功率信号路径,旁路信号路径。 在输入端(101)和旁路信号路径之间不设置任何RF开关。 阻抗匹配和配电网络(102)分别安装在输入端和高功率和低功率信号路径之间。 阻抗匹配和配电网络将输入信号的功率的一半提供给旁路信号路径。 阻抗匹配和配电网络将输入信号的功率的一半提供给高功率信号路径和低功率信号路径之一。 功率放大器旁路网络(112)将输入信号发送到具有低增益或无增益的低输出端子。