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71. 发明申请

US20120126887A1 HIGH-EFFICIENCY POWER AMPLIFIER WITH MULTIPLE POWER MODES 有权
标题翻译：具有多种功率模式的高效功率放大器
公开(公告)号：US20120126887A1
公开(公告)日：2012-05-24
申请号：US12952620
申请日：2010-11-23
申请人： Choong Soo Han , Jung Min Oh , Sang Hwa Jung
发明人： Choong Soo Han , Jung Min Oh , Sang Hwa Jung
IPC分类号： H03F3/60 , H03F3/68
CPC分类号： H03F1/0277 , H03F3/211 , H03F3/68 , H03F3/72 , H03F2203/21103 , H03F2203/21106 , H03F2203/21139 , H03F2203/21142 , H03F2203/7233 , H03F2203/7236
摘要： In a representative embodiment, a multiple mode power amplifier that is operable in a first power mode and a second power mode. The multiple mode power amplifier comprises a first amplifying unit; a second amplifying unit; a first impedance matching network connected to an output port of the first amplifying unit; a second impedance matching network connected to an output port of the second amplifying unit and to the first impedance matching network; and a third impedance matching network connected to the output ports of the first and the second amplifying units. The third impedance matching network reduces a phase difference between signals amplified by the first and the second amplifying units in the first mode.
摘要翻译：在代表性实施例中，可在第一功率模式和第二功率模式下操作的多模式功率放大器。多模式功率放大器包括第一放大单元; 第二放大单元; 连接到第一放大单元的输出端口的第一阻抗匹配网络; 连接到第二放大单元的输出端口和第一阻抗匹配网络的第二阻抗匹配网络; 以及连接到第一和第二放大单元的输出端口的第三阻抗匹配网络。第三阻抗匹配网络在第一模式中减小由第一和第二放大单元放大的信号之间的相位差。

72. 发明授权

US07650132B2 Low noise amplifier (LNA) gain switch circuit 有权
标题翻译：低噪声放大器（LNA）增益开关电路
公开(公告)号：US07650132B2
公开(公告)日：2010-01-19
申请号：US11544343
申请日：2006-10-06
申请人： Hooman Darabi
发明人： Hooman Darabi
IPC分类号： H04B1/28
CPC分类号： H03F1/223 , H03F3/72 , H03F2200/294 , H03F2200/453 , H03F2203/7233 , H03G1/0088 , H03G3/3052 , H04B1/18 , H04B1/406
摘要： A circuit is formed to steer current in and out of an inductive load in a manner that enables an amplifier to provide a plurality of gain steps without modifying an LC time constant for the circuit and, therefore, without modifying the tuning or frequency of oscillation for the circuit. A first group of MOSFETs are coupled in parallel and define the circuit current flow. A second group of MOSFETs are coupled in parallel to each other and in series to an impedance device. A third group of MOSFETs coupled to steer current in and out of the impedance device to affect the output signal coupled to one end of the impedance device. The transistors in the second and third groups of MOSFETs are selectively activated to control the amount of current that goes through the impedance device.
摘要翻译：电路形成为以电流负载的方式引导电流，使得放大器能够提供多个增益步骤而不修改电路的LC时间常数，因此，不改变振荡的调谐或振荡频率电路。第一组MOSFET并联并定义电路电流。第二组MOSFET彼此并联并串联耦合到阻抗器件。第三组MOSFET，其耦合以引导进入和流出阻抗器件的电流，以影响耦合到阻抗器件的一端的输出信号。选择性地激活第二组和第三组MOSFET中的晶体管以控制通过阻抗器件的电流量。

73. 发明授权

US07479827B2 Multi-mode power amplifier with high efficiency under backoff operation 有权
标题翻译：多模功率放大器，在退避操作下效率高
公开(公告)号：US07479827B2
公开(公告)日：2009-01-20
申请号：US11841162
申请日：2007-08-20
申请人： Gary Hau , Abid Hussain
发明人： Gary Hau , Abid Hussain
IPC分类号： H03F1/14
CPC分类号： H03F1/0277 , H03F1/0261 , H03F1/56 , H03F3/19 , H03F3/211 , H03F3/245 , H03F3/72 , H03F2200/318 , H03F2200/411 , H03F2200/451 , H03F2203/7206 , H03F2203/7231 , H03F2203/7233 , H03F2203/7239
摘要： A multi-mode RF amplifier is disclosed having high and low output power modes and two power paths. A first RF amplifier delivers power to both paths. When the multi-mode RF amplifier is biased into the high power, HP, mode, substantial power is delivered via both (first and second) paths. While in the low power, LP, mode, an RF switch is turned off, creating a high input impedance, open circuit for the first path, and effectively isolating the two paths. Therefore, power is delivered by the first RF amplifier to the second path only. The impedance presented to the output of the first RF amplifier is equal to the input impedance of the second path which may be optimally set for maximizing power added efficiency or output power in LP mode. Note that, in a preferred embodiment, even in the HP mode more power is delivered to the second power path than to the first power path.
摘要翻译：公开了具有高和低输出功率模式和两个功率路径的多模RF放大器。第一个RF放大器为两个路径提供电源。当多模RF放大器被偏置到高功率HP模式时，通过（第一和第二）路径传送大量功率。在低功耗LP模式下，RF开关关闭，产生高输入阻抗，第一路径开路，有效隔离两路。因此，功率由第一RF放大器传送到第二路径。呈现给第一RF放大器的输出的阻抗等于第二路径的输入阻抗，该阻抗可以被最优化地设定，以在LP模式中最大化功率附加效率或输出功率。注意，在优选实施例中，即使在HP模式中，与第一功率路径相比，更多的功率被传送到第二功率路径。

74. 发明申请

US20080284539A1 HIGH FREQUENCY CIRCUIT, SEMICONDUCTOR DEVICE, AND HIGH FREQUENCY POWER AMPLIFICATION DEVICE 有权
标题翻译：高频电路，半导体器件和高频功率放大器件
公开(公告)号：US20080284539A1
公开(公告)日：2008-11-20
申请号：US12118803
申请日：2008-05-12
申请人： Kazuki TATEOKA , Masahiko Inamori , Shingo Matsuda , Kazuhiko Ohashi , Haruhiko Koizumi
发明人： Kazuki TATEOKA , Masahiko Inamori , Shingo Matsuda , Kazuhiko Ohashi , Haruhiko Koizumi
IPC分类号： H03H7/38
CPC分类号： H03F3/189 , H03F1/56 , H03F2200/222 , H03F2200/255 , H03F2200/387 , H03F2200/423 , H03F2203/7233
摘要： A small, high performance, multifunctional high frequency circuit that is multiband and multimode compatible reduces loss from a switch formed on the output side of a final stage amplification unit. The final stage amplification unit power amplifies an input signal and outputs an amplified signal. A first matching circuit impedance converts the amplified signal input thereto at a first input impedance, and outputs a first impedance-converted signal at a first output impedance. A control unit that generates a control signal denoting signal path selection information. A switch unit selects one of at least two signal paths based on the control signal, passes the first impedance-converted signal at an on impedance through the selected path, and outputs the pass signal. A second matching circuit impedance converts a pass signal input thereto at a second input impedance, and outputs a second impedance-converted signal at a second output.
摘要翻译：多频和多模兼容的小型，高性能，多功能高频电路可以减少在最终级放大单元输出侧形成的开关损耗。最终级放大单元功率放大输入信号并输出放大信号。第一匹配电路阻抗以第一输入阻抗转换输入到其的放大信号，并输出第一输出阻抗的第一阻抗转换信号。控制单元，其生成表示信号路径选择信息的控制信号。开关单元基于控制信号选择至少两个信号路径中的一个，将通过所选路径的导通阻抗的第一阻抗转换信号传递，并输出通过信号。第二匹配电路阻抗以第二输入阻抗转换输入到其的通过信号，并在第二输出端输出第二阻抗转换信号。

75. 发明授权

US07427894B2 Dual-mode, dual-load high efficiency RF power amplifier 有权
公开(公告)号：US07427894B2
公开(公告)日：2008-09-23
申请号：US11634060
申请日：2006-12-06
申请人： Gee Samuel Dow , Chien-Lung Ho
发明人： Gee Samuel Dow , Chien-Lung Ho
IPC分类号： H03F1/14 , H03G3/20
CPC分类号： H03F3/193 , H03F1/0205 , H03F1/0277 , H03F1/56 , H03F3/72 , H03F2200/318 , H03F2200/387 , H03F2200/408 , H03F2200/451 , H03F2203/7233 , H03F2203/7239 , H03H7/38
摘要： A radio frequency (RF) amplifier has a driver device, an output device, and first and second impedance transformation networks. In a first operating mode the output device is turned on and the first impedance transformation network presents a first load impedance to the output device. In a second operating mode, the output device is turned off and the second impedance transformation network connects an output of the driver device to the first impedance transformation network and presents a second load impedance to the driver device. The second load impedance is greater than the first load impedance.

76. 发明申请

US20080136512A1 Dual-mode, dual-load high efficiency RF power amplifier 有权
标题翻译：双模，双负载高效RF功率放大器
公开(公告)号：US20080136512A1
公开(公告)日：2008-06-12
申请号：US11634060
申请日：2006-12-06
申请人： Gee Samuel Dow , Chien-Lung Ho
发明人： Gee Samuel Dow , Chien-Lung Ho
IPC分类号： H03F1/14
CPC分类号： H03F3/193 , H03F1/0205 , H03F1/0277 , H03F1/56 , H03F3/72 , H03F2200/318 , H03F2200/387 , H03F2200/408 , H03F2200/451 , H03F2203/7233 , H03F2203/7239 , H03H7/38
摘要： A radio frequency (RF) amplifier has a driver device, an output device, and first and second impedance transformation networks. In a first operating mode the output device is turned on and the first impedance transformation network presents a first load impedance to the output device. In a second operating mode, the output device is turned off and the second impedance transformation network connects an output of the driver device to the first impedance transformation network and presents a second load impedance to the driver device. The second load impedance is greater than the first load impedance.
摘要翻译：射频（RF）放大器具有驱动器装置，输出装置以及第一和第二阻抗变换网络。在第一操作模式中，输出装置被接通并且第一阻抗变换网络向输出装置呈现第一负载阻抗。在第二操作模式中，输出设备被关闭，第二阻抗变换网络将驱动器设备的输出连接到第一阻抗变换网络，并向驱动器设备呈现第二负载阻抗。第二个负载阻抗大于第一个负载阻抗。

77. 发明授权

US07120411B2 Low noise amplifier (LNA) gain switch circuitry 失效
公开(公告)号：US07120411B2
公开(公告)日：2006-10-10
申请号：US10138601
申请日：2002-05-03
申请人： Hooman Darabi
发明人： Hooman Darabi
IPC分类号： H04B1/06
CPC分类号： H03F1/223 , H03F3/72 , H03F2200/294 , H03F2200/453 , H03F2203/7233 , H03G1/0088 , H03G3/3052 , H04B1/18 , H04B1/406
摘要： A circuit is formed to steer current in and out of an inductive load in a manner that enables an amplifier to provide a plurality of gain steps without modifying an LC time constant for the circuit and, therefore, without modifying the tuning or frequency of oscillation for the circuit. A first group of MOSFETs are coupled in parallel and define the circuit current flow. A second group of MOSFETs are coupled in parallel to each other and in series to an impedance device. A third group of MOSFETs coupled to steer current in and out of the impedance device to affect the output signal coupled to one end of the impedance device. The transistors in the second and third groups of MOSFETs are selectively activated to control the amount of current that goes through the impedance device.

78. 发明授权

US06313699B1 Power amplifier and communication unit 有权
公开(公告)号：US06313699B1
公开(公告)日：2001-11-06
申请号：US09593123
申请日：2000-06-13
申请人： Masaaki Nishijima , Taketo Kunihisa , Osamu Ishikawa
发明人： Masaaki Nishijima , Taketo Kunihisa , Osamu Ishikawa
IPC分类号： H03F114
CPC分类号： H03F3/68 , H03F3/602 , H03F3/72 , H03F2200/294 , H03F2200/372 , H03F2203/7215 , H03F2203/7221 , H03F2203/7231 , H03F2203/7233 , H03F2203/7236
摘要： A power amplifier including: a first amplifier PA2 having an input terminal and an output terminal; a passive circuit PC3 having an input terminal and an output terminal; and a first switch SW2 having a single-pole terminal and two multi-throw terminals, one of the multi-throw terminals of the first switch SW2 being connected to the input terminal of the first amplifier PA2 and the other of the multi-throw terminals of the first switch SW2 being connected to the input terminal of the passive circuit PC3. This makes it possible to provide a power amplifier and a communication unit which can be operated with different frequencies, output powers or modulation types.

79. 发明授权

US11984855B2 Source switched split LNA 有权
公开(公告)号：US11984855B2
公开(公告)日：2024-05-14
申请号：US17314836
申请日：2021-05-07
申请人： pSemi Corporation
发明人： Emre Ayranci , Miles Sanner
IPC分类号： H03F1/22 , H03F1/02 , H03F1/08 , H03F1/56 , H03F3/193 , H03F3/195 , H03F3/72
CPC分类号： H03F1/0277 , H03F1/086 , H03F1/565 , H03F3/193 , H03F3/195 , H03F3/72 , H03F2200/111 , H03F2200/18 , H03F2200/213 , H03F2200/222 , H03F2200/225 , H03F2200/243 , H03F2200/252 , H03F2200/294 , H03F2200/297 , H03F2200/301 , H03F2200/306 , H03F2200/321 , H03F2200/387 , H03F2200/391 , H03F2200/399 , H03F2200/411 , H03F2200/42 , H03F2200/429 , H03F2200/451 , H03F2200/48 , H03F2200/489 , H03F2200/492 , H03F2200/525 , H03F2200/61 , H03F2200/75 , H03F2203/7206 , H03F2203/7209 , H03F2203/7233
摘要： A receiver front end amplifier capable of receiving and processing intraband non-contiguous carrier aggregate (CA) signals using multiple low noise amplifiers (LNAs) is disclosed herein. A cascode having a “common source” configured input FET and a “common gate” configured output FET can be turned on or off using the gate of the output FET. A first switch is provided that allows a connection to be either established or broken between the source terminal of the input FET of each LNA. Further switches used for switching degeneration inductors, gate capacitors, and gate to ground capacitors for each leg can be used to further improve the matching performance of the invention.

80. 发明授权

US09973149B2 Source switched split LNA 有权
公开(公告)号：US09973149B2
公开(公告)日：2018-05-15
申请号：US15342016
申请日：2016-11-02
申请人： pSemi Corporation
发明人： Emre Ayranci , Miles Sanner
IPC分类号： H03F1/14 , H03F1/02 , H03F3/193 , H03F1/56
CPC分类号： H03F1/0277 , H03F1/086 , H03F1/565 , H03F3/193 , H03F3/195 , H03F3/72 , H03F2200/111 , H03F2200/18 , H03F2200/213 , H03F2200/222 , H03F2200/225 , H03F2200/243 , H03F2200/252 , H03F2200/294 , H03F2200/297 , H03F2200/301 , H03F2200/306 , H03F2200/321 , H03F2200/387 , H03F2200/391 , H03F2200/399 , H03F2200/411 , H03F2200/42 , H03F2200/429 , H03F2200/451 , H03F2200/48 , H03F2200/489 , H03F2200/492 , H03F2200/525 , H03F2200/61 , H03F2200/75 , H03F2203/7206 , H03F2203/7209 , H03F2203/7233
摘要： A receiver front end capable of receiving and processing intraband non-contiguous carrier aggregate (CA) signals using multiple low noise amplifiers (LNAs) is disclosed herein. A cascode having a “common source” configured input FET and a “common gate” configured output FET can be turned on or off using the gate of the output FET. A first switch is provided that allows a connection to be either established or broken between the source terminal of the input FET of each LNA. Further switches used for switching degeneration inductors, gate capacitors and gate to ground caps for each legs can be used to further improve the matching performance of the invention.

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