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    • 1. 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。
    • 3. 发明授权
    • Radio frequency power amplifier
    • 射频功率放大器
    • US06943624B2
    • 2005-09-13
    • US10161737
    • 2002-06-05
    • Masami OhnishiHidetoshi MatsumotoTomonori TanoueOsamu KagayaKenji Sekine
    • Masami OhnishiHidetoshi MatsumotoTomonori TanoueOsamu KagayaKenji Sekine
    • H03F3/60H03F1/02H03F1/56H03F3/189H03F3/24H03F3/68H03F1/14H03F3/04
    • 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M 12和第一级匹配网络M 13连接到功率放大器单元A11和功率放大器单元A12的相应输出节点,功率放大器单元A 11和功率放大器单元A 12通过切换操作,连接第一级匹配网络 在M12和M13的连接点与输出端子OUT,第一级匹配网络M 12,M 13以及最后一级匹配网络M12之间连接最后一级匹配网络M 11, 对于功率放大器单元A 11和A 12两者形成级匹配网络M 11,使得当一个单元在操作中另一个处于停止操作时在输出端子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。
    • 5. 发明授权
    • Radio frequency power amplifier
    • 射频功率放大器
    • US07123087B2
    • 2006-10-17
    • US11230467
    • 2005-09-21
    • Masami OhnishiHidetoshi MatsumotoTomonori TanoueOsamu KagayaKenji Sekine
    • Masami OhnishiHidetoshi MatsumotoTomonori TanoueOsamu KagayaKenji Sekine
    • H03F3/68
    • 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M 12和第一级匹配网络M 13连接到功率放大器单元A11和功率放大器单元A12的相应输出节点,功率放大器单元A 11和功率放大器单元A 12通过切换操作,连接第一级匹配网络 在M12和M13的连接点与输出端子OUT,第一级匹配网络M 12,M 13以及最后一级匹配网络M12之间连接最后一级匹配网络M 11, 对于功率放大器单元A 11和A 12两者形成级匹配网络M 11,使得当一个单元在操作中另一个处于停止操作时在输出端子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。
    • 8. 发明授权
    • Power amplifier module
    • 功率放大器模块
    • US06816017B2
    • 2004-11-09
    • US09931877
    • 2001-08-20
    • Kiichi YamashitaTomonori TanoueIsao OhbuKenji Sekine
    • Kiichi YamashitaTomonori TanoueIsao OhbuKenji Sekine
    • H03F152
    • H03F3/19H03F1/0261H03F1/302H03F3/347H03F2200/444
    • A power amplifier module is provided with a function of protecting an amplifying device against destruction caused by a standing wave by reflection from an antenna end in load variation. Increase in base current from idling current of a final stage amplifying portion GaAs-HBT in load variation is detected and canceled and collector current is restrained to thereby prevent an increase in output and prevent destruction of GaAs-RET. By also using a function of successively lowering idling current when power source voltage is elevated and a clipping function of diodes connected in parallel with output stage GaAs-RET, voltage as well as current more than necessary are avoided from being applied on the output stage GaAs-RET.
    • 功率放大器模块具有保护放大装置的功能,以防止由负载变化引起的天线反射引起的驻波的破坏。 检测并抵消了负载变化中的最终级放大部分GaAs-HBT的空载电流的基极电流的增加,并抑制集电极电流,从而防止输出增加并防止GaAs-RET的破坏。 通过使用在电源电压升高时连续降低空载电流并且与输出级GaAs-RET并联连接的二极管的限幅功能也被避免施加在输出级GaAs上的功能。 -RET。