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    • 1. 发明授权
    • High-frequency power amplifier module
    • 高频功率放大器模块
    • US06384688B1
    • 2002-05-07
    • US09673977
    • 2000-10-25
    • Toru FujiokaIsao YoshidaMineo KatsuedaMasatoshi MorikawaYoshikuni MatsunagaKenji SekineOsamu Kagaya
    • Toru FujiokaIsao YoshidaMineo KatsuedaMasatoshi MorikawaYoshikuni MatsunagaKenji SekineOsamu Kagaya
    • H03F304
    • H03F3/72H03F3/193H03F3/211H03F2200/306H03F2200/309H03F2200/39H03F2200/429H04B1/0053H04B1/0458
    • A radio frequency power amplifier module for a dual-band type mobile communication apparatus that can transmit and receive the first frequency f1 and the second frequency f2 (f2=2×f1) is structured as explained below. This radio frequency power amplifier module for dual-band type mobile communication apparatus is comprised of a drive stage amplifier having the gain peaks at f1 and f2 with a matching circuit and a radio frequency power output circuit including a radio frequency power output transistor. The output circuit is constituted of a transmission line connected to the drain end of the output transistor, a parallel resonance circuit connected in series to the transmission line to resonate at the harmonics in the frequency twice the frequency f2, a series resonance circuit provided between one end of the resonance circuit and the ground to resonate at the harmonics in the frequency twice the frequency f2 and an output matching circuit provided in series to the other end of the parallel resonance circuit for the matching with f1 and f2. The transmission line is set to terminate at the drain end for the even number order harmonics of f2 with the reactance existing at the drain end and a circuit element constant forming the parallel resonance circuit is set to open at the drain end for the odd number order harmonics of f2 with the series resonance circuit, transmission line and reactance existing at the drain end. With the structure explained above, since harmonics power can be controlled through control of the predetermined harmonics, high efficiency and reduction in size of the radio frequency power amplifier module can be realized.
    • 可以发送和接收第一频率f1和第二频率f2(f2 = 2xf1)的用于双频带型移动通信装置的射频功率放大器模块如下所述地构成。该射频功率放大器模块用于双频 型移动通信装置包括具有匹配电路的具有在f1和f2的增益峰值的驱动级放大器和包括射频功率输出晶体管的射频功率输出电路。 输出电路由连接到输出晶体管的漏极端的传输线构成,并联谐振电路与传输线串联连接,以频率f2的频率谐振地谐振,串联谐振电路设置在一个 谐振电路的端部和谐振频率为频率f2的频率的谐波的接地和与并联谐振电路的另一端串联设置以用于与f1和f2匹配的输出匹配电路。 传输线被设置为在漏极端处终止,其中存在于漏极端处的电抗的偶数次谐波为f2,并且形成并联谐振电路的电路元件常数设置为在漏极端处为奇数阶开路 具有串联谐振电路的f2谐波,漏极端存在的传输线和电抗。通过上述结构,由于能够通过控制预定谐波来控制谐波功率,高效率和减小射频功率放大器的尺寸 模块可以实现。
    • 6. 发明申请
    • Radio frequency power amplifier
    • 射频功率放大器
    • US20050110573A1
    • 2005-05-26
    • US11023414
    • 2004-12-29
    • Masami OhnishiHidetoshi MatsumotoTomonori TanoueOsamu KagayaKenji Sekine
    • Masami OhnishiHidetoshi MatsumotoTomonori TanoueOsamu KagayaKenji Sekine
    • H03F3/60H03F1/02H03F1/56H03F3/189H03F3/24H03F3/68
    • H03F1/56H03F1/0277H03F1/565H03F3/602H03F3/72H03F2203/7209
    • The present invention provides a radio frequency power amplifier which may not introduce radio frequency loss during switching power amplifier units between high and low output power levels. By connecting a first-stage matching network M12 and first-stage matching network M13 to respective output nodes of a power amplifier unit A11 and power amplifier unit A12 that either one operate by switching, connecting the output nodes of the first-stage matching network M12 and M13 in parallel, connecting a last-stage matching network M11 between the junction of M12 and M13 and the output terminal OUT, the first-stage matching networks M12, M13, and last-stage matching network M11 are formed, for both power amplifier units A11 and A12, so that impedance matching is established between the output terminal OUT and the power amplifier unit in operation when one unit is in operation the other is in stop of operation. The present invention allows switching from one power amplifier unit to the other without the need of a radio frequency switch.
    • 本发明提供一种射频功率放大器,其可以在高输出功率级和低输出功率级之间的开关功率放大器单元期间不会引入射频损耗。 通过将第一级匹配网络M12和第一级匹配网络M13连接到通过切换操作的功率放大器单元A11和功率放大器单元A12的各个输出节点,连接第一级匹配网络M12的输出节点 M13并联连接M12和M13的连接点与输出端子OUT之间的最后一级匹配网络M11,形成第一级匹配网络M12,M13和最后级匹配网络M11,用于功率放大器 单元A11和A12,使得当一个单元在操作中另一个处于停止操作时,在操作中在输出端子OUT和功率放大器单元之间建立阻抗匹配。 本发明允许从一个功率放大器单元切换到另一个,而不需要射频切换。