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公开(公告)号：US20240305257A1
公开(公告)日：2024-09-12
申请号：US18289239
申请日：2022-04-28
发明人： Joonas Govenius
CPC分类号： H03F7/00 , H03F19/00 , H10N60/12 , H03F2200/198 , H03F2200/372
摘要： According to an example aspect of the present invention, there is provided an isolating amplifier apparatus comprising a first 2×2 hybrid coupler and a second 2×2 hybrid coupler, each 2×2 hybrid coupler having a first input port, a second input port, a first output port and a second output port, a first travelling wave parametric amplifier, TWPA, comprising an input connected to the first output port of the first 2×2 hybrid coupler and an output connected to the first input port of the second 2×2 hybrid coupler, and a second travelling wave parametric amplifier, TWPA, comprising an input connected to the second output port of the first 2×2 hybrid coupler and an output connected to the second input of the second 2×2 hybrid coupler.
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公开(公告)号：US12015380B2
公开(公告)日：2024-06-18
申请号：US17289897
申请日：2019-10-31
申请人： Leonardo UK Ltd
CPC分类号： H03F1/0288 , H03F1/0266 , H03F1/56 , H03F3/193 , H03F3/604 , H03F2200/192 , H03F2200/198 , H03F2200/204 , H03F2200/321 , H03F2200/336 , H03F2200/387 , H03F2200/451
摘要： A balanced amplifier system having input and output quadrature couplers or equivalents thereof and two amplifiers there between. An RF signal is presented to a first input of an input quadrature coupler such that an amplified RF signal is output at a first output of the output quadrature coupler. A RF control signal is presented to a second input of the quadrature coupler such that an amplified control signal is outputted at the other output of the output quadrature coupler. The system is configured to reflect the amplified signal back into the second port of the output quadrature coupler in order to vary an impedance seen by the amplifiers of the balanced amplifier.
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公开(公告)号：US20240120886A1
公开(公告)日：2024-04-11
申请号：US18351907
申请日：2023-07-13
发明人： Seunghoon JEE , Youngoo YANG , Hyunuk KANG , Kyoungtae KIM , Changwook KIM , Youngyoon WOO , Yi Fei CHEN
CPC分类号： H03F1/0288 , H03F1/565 , H03F3/245 , H03F2200/198 , H03F2200/451
摘要： A Doherty power amplifier of a wireless communication system is provided. The Doherty power amplifier includes a first stage including a first power amplifier and a second power amplifier. The Doherty power amplifier includes a second stage including a third power amplifier and a fourth power amplifier. The Doherty power amplifier includes a coupler between the first stage and the second stage. The Doherty power amplifier includes a load impedance connected to the second stage. A bias of the first power amplifier is applied differently from a bias of the second power amplifier. A bias of the third power amplifier is applied in the same manner as a bias of the fourth power amplifier.
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公开(公告)号：US20230261615A1
公开(公告)日：2023-08-17
申请号：US18304050
申请日：2023-04-20
发明人： Seunghoon JEE , Youngoo YANG , Yifei CHEN , Hyunuk KANG , Kyoungtae KIM , Youngyoon WOO , Jaekyung SHIN , Woojin CHOI
CPC分类号： H03F1/0288 , H03F3/24 , H03F3/602 , H03F1/565 , H03F2200/451 , H03F2200/198 , H03F2200/423
摘要： The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long-Term Evolution (LTE). A Doherty power amplifier of a wireless communication system is provided. The Doherty power amplifier includes a first power amplifier, a second power amplifier, a first transmission line, a 4-port coupler, and a load impedance, and the 4-port coupler includes a first port, a second port, a third port, and a fourth port, the first power amplifier is coupled with the 4-port coupler through the first port, the second power amplifier is coupled with the 4-port coupler through the fourth port, the load impedance is coupled with the 4-port coupler through the third port, the first transmission line is disposed between the first power amplifier and the first port of the 4-port coupler, and the second port is an output end of the power amplifier.
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公开(公告)号：US09954502B2
公开(公告)日：2018-04-24
申请号：US15127547
申请日：2015-03-17
发明人： Owen William Clarke
CPC分类号： H03F3/602 , H03F3/189 , H03F3/20 , H03F3/68 , H03F2200/192 , H03F2200/198 , H03F2200/204
摘要： A multiport amplifier MPA is provided with an N-input input network, INET, an N-output output network, ONET, and N amplifiers interposed between the INET and the ONET, the MPA comprising N wanted signal paths and N.(N−1) null signal paths wherein N is divisible by 2, half of the N amplifier paths comprise a signal inversion with respect to the other half of the N amplifier paths, the INET and the ONET each comprise one or more quadrature hybrid couplers, QHC, wherein a pair of amplifier paths is arranged between the output of a first QHC in the INET and the input of a second QHC at the ONET, and each signal inversion is arranged in one of the amplifier paths of each pair of amplifier paths such that the ideal amplitude gain of at least one of the N.(N−i) null signal paths is zero.
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公开(公告)号：US20180083590A1
公开(公告)日：2018-03-22
申请号：US15359051
申请日：2016-11-22
发明人： Yo-Sheng Lin , Ynn-Wen Lin , Ming-Huang Kao
CPC分类号： H03H7/42 , H01P5/10 , H01P5/12 , H03F3/602 , H03F2200/198 , H03F2200/451
摘要： A power amplifying converter comprises a multi-balanced-unbalanced converting unit, a plurality of power amplifying units, a plurality of dual-path power combining units and a differential power combining unit. The multi-balanced-unbalanced converting unit is provided with a first input/output end and a plurality of second input/output ends. Each of the power amplifying units is provided with a first input end electrically connected to the second input/output end, and a first output end. Each of the dual-path power combining units is provided with two second input ends electrically connected to the first output ends, and a second output end. The differential power combining unit is provided with two third input ends electrically connected to the second output ends, and a third output end. In this case, the multi-balanced-unbalanced converting unit is made up of a plurality of 1/12 wavelength transmission lines.
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公开(公告)号：US09806394B2
公开(公告)日：2017-10-31
申请号：US14862489
申请日：2015-09-23
申请人： MEDIATEK INC.
发明人： Fatih Golcuk , Yuen Hui Chee , Osama K. A. Shana'a
IPC分类号： H01P5/12 , H03H7/38 , H01P5/18 , H03F3/60 , H03H7/21 , H03H7/48 , H03F3/19 , H03F3/21 , H03F3/45
CPC分类号： H01P5/18 , H01P5/185 , H03F3/19 , H03F3/211 , H03F3/45188 , H03F3/45475 , H03F3/60 , H03F3/602 , H03F2200/198 , H03F2200/451 , H03F2203/45481 , H03H7/21 , H03H7/38 , H03H7/48
摘要： The isolated port of a 0/90 degree coupler is terminated by a novel complex termination impedance circuit having a reactance. The absolute value of the reactance is at least two ohms. The coupler receives a signal on its input port, and outputs a first signal on its first output port and a second signal on its second output port. A first load is coupled to the first output port without an intervening matching network. A substantial impedance mismatch exists between the first output port and the first load. A second load is coupled to the second output port without an intervening matching network. A substantial impedance mismatch exists between the second output port and the second load. Despite the substantial impedance mismatches, the first and second signals have a phase difference in a range of from 88 degrees to 92 degrees while exhibiting an amplitude imbalance less than 2 dB.
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公开(公告)号：US09503028B2
公开(公告)日：2016-11-22
申请号：US14609532
申请日：2015-01-30
发明人： Rui Ma , Jin Shao , Koon Hoo Teo
CPC分类号： H03F1/0277 , H03F1/0288 , H03F3/211 , H03F3/24 , H03F3/602 , H03F2200/192 , H03F2200/198 , H03F2200/204 , H03F2200/408
摘要： A three-way sequential power amplifier includes an input network connected to a main amplifier, a first peak amplifier, a second peak amplifier, which in turn are connected to a three-way output network. An input signal for an input port of the input network is a wideband radio frequency (RF) signal with a time varying amplitude. An output port of the output network can be connected to an antenna, via a bandpass filter, to attenuate out of band frequencies.
摘要翻译： 三路顺序功率放大器包括连接到主放大器的输入网络，第一峰值放大器，第二峰值放大器，其又连接到三路输出网络。 用于输入网络的输入端口的输入信号是具有时变幅度的宽带射频（RF）信号。 输出网络的输出端口可以通过带通滤波器连接到天线，以衰减带外频率。
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9.发明申请公开(公告)号：US20160226450A1
公开(公告)日：2016-08-04
申请号：US14609532
申请日：2015-01-30
发明人： Rui Ma , Jin Shao , Koon Hoo Teo
CPC分类号： H03F1/0277 , H03F1/0288 , H03F3/211 , H03F3/24 , H03F3/602 , H03F2200/192 , H03F2200/198 , H03F2200/204 , H03F2200/408
摘要： A three-way sequential power amplifier includes an input network connected to a main amplifier, a first peak amplifier, a second peak amplifier, which in turn are connected to a three-way output network. An input signal for an input port of the input network is a wideband radio frequency (RF) signal with a time varying amplitude. An output port of the output network can be connected to an antenna, via a bandpass filter, to attenuate out of band frequencies.
摘要翻译： 三路顺序功率放大器包括连接到主放大器的输入网络，第一峰值放大器，第二峰值放大器，其又连接到三路输出网络。 用于输入网络的输入端口的输入信号是具有时变幅度的宽带射频（RF）信号。 输出网络的输出端口可以通过带通滤波器连接到天线，以衰减带外频率。
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公开(公告)号：US09369095B2
公开(公告)日：2016-06-14
申请号：US14606375
申请日：2015-01-27
CPC分类号： H03F1/56 , H03F1/0261 , H03F1/32 , H03F1/565 , H03F3/602 , H03F2200/192 , H03F2200/198 , H03F2200/204 , H03F2201/3215
摘要： An unbalanced linear power amplifier (PA) is disclosed having a quadrature coupler with a 90° phase input port, a 0° phase input port, an output termination port, and a signal output port. Each of the 90° phase input port, the 0° phase input port, the output termination port, and the signal output port have a characteristic resistance (Ro). Also included is a first PA having an output coupled to a 90° phase input port of the quadrature coupler and a second PA having an output coupled to a 0° phase input port of the quadrature coupler. Biasing circuitry provides the first PA and the second PA with a similar gain. A tuning network is coupled between the output termination port and ground. The tuning network has an isolation resistance in series with an isolation inductance, wherein the isolation resistance is between about 0.02*Ro Ω and 0.8*Ro Ω.
摘要翻译： 公开了一种具有90°相位输入端口，0°相位输入端口，输出端接端口和信号输出端口的正交耦合器的不平衡线性功率放大器（PA）。 90°相位输入端口，0°相位输入端口，输出端接端口和信号输出端口均具有特性电阻（Ro）。 还包括具有耦合到正交耦合器的90°相位输入端口的输出的第一PA和具有耦合到正交耦合器的0°相位输入端口的输出的第二PA。 偏置电路为第一个PA和第二个PA提供了类似的增益。 调谐网络耦合在输出终端端口和地之间。 调谐网络具有与隔离电感串联的隔离电阻，其中隔离电阻介于约0.02 * Ro＆OHgr之间; 和0.8 * Ro＆OHgr;
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