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1. 发明申请

US20160173040A1 N-WAY DOHERTY DISTRIBUTED POWER AMPLIFIER WITH POWER TRACKING 审中-公开
标题翻译：具有电力跟踪功能的N-Way DOHERTY分布式功率放大器
公开(公告)号：US20160173040A1
公开(公告)日：2016-06-16
申请号：US14885890
申请日：2015-10-16
申请人： Dali Systems Co., Ltd.
发明人： Kyoung Joon Cho , Wan Jong Kim , Shawn Patrick Stapleton
IPC分类号： H03F1/02 , H03F3/21 , H03F3/193
CPC分类号： H03F1/0288 , H03F1/0261 , H03F1/56 , H03F3/193 , H03F3/211 , H03F3/607 , H03F2200/451 , H03F2203/21106
摘要： A power amplifier using N-way Doherty structure with adaptive bias supply power tracking for extending the efficiency region over the high peak-to-average power ratio of the multiplexing modulated signals such as wideband code division multiple access and orthogonal frequency division multiplexing is disclosed. In an embodiment, present invention uses a dual-feed distributed structure to an N-way Doherty amplifier to improve the isolation between at least one main amplifier and at least one peaking amplifier and, and also to improve both gain and efficiency performance at high output back-off power. Hybrid couplers can be used at either or both of the input and output. In at least some implementations, circuit space is also conserved due to the integration of amplification, power splitting and combining.
摘要翻译：公开了一种使用N路Doherty结构的功率放大器，其具有自适应偏置电源功率跟踪，用于在诸如宽带码分多址和正交频分复用的复用调制信号的高峰值与平均功率比之间扩展效率区域。在一个实施例中，本发明使用双馈馈分布式结构到N路Doherty放大器来改善至少一个主放大器与至少一个峰化放大器之间的隔离，并且还可以在高输出下提高增益和效率性能后退电源混合耦合器可以在输入和输出中的任一个或两者上使用。在至少一些实现中，由于放大，功率分配和组合的集成，电路空间也是保守的。

2. 发明授权

US09246731B2 Method and system for baseband predistortion linearization in multi-channel wideband communication systems 有权
标题翻译：多通道宽带通信系统中基带预失真线性化的方法和系统
公开(公告)号：US09246731B2
公开(公告)日：2016-01-26
申请号：US14480285
申请日：2014-09-08
申请人： Dali Systems Co. Ltd.
发明人： Wan-Jong Kim , Kyoung Joon Cho , Jong Heon Kim , Shawn Patrick Stapleton
IPC分类号： H03H7/30 , H04L27/26 , H03F1/32 , H03F3/24 , H04L25/03 , H04L27/36 , H04W24/02 , H04B1/04 , H04W24/04 , H04W40/00
CPC分类号： H04W40/02 , H03F1/3247 , H03F3/24 , H03F2200/336 , H03F2200/57 , H03F2201/3224 , H03F2201/3233 , H04B1/0475 , H04B7/022 , H04B2001/0425 , H04L25/03343 , H04L27/2618 , H04L27/362 , H04L2025/03414 , H04W24/02 , H04W24/04 , H04W40/00 , H04W72/04 , H04W72/0453
摘要： An efficient baseband predistortion linearization method for reducing the spectral regrowth and compensating memory effects in wideband communication systems using effective multiplexing modulation technique such as wideband code division multiple access and orthogonal frequency division multiplexing is disclosed. The present invention is based on the method of piecewise pre-equalized lookup table based predistortion, which is a cascade of a lookup table predistortion and piecewise pre-equalizers.
摘要翻译：公开了一种使用诸如宽带码分多址和正交频分复用之类的有效复用调制技术在宽带通信系统中减少频谱再生长和补偿存储器效应的有效的基带预失真线性化方法。本发明基于基于分段预均衡查找表的预失真的方法，该预失真是查找表预失真和分段预均衡器的级联。

3. 发明授权

US09184703B2 N-way doherty distributed power amplifier with power tracking 有权
标题翻译：具有功率跟踪功能的N路多功能分布式功率放大器
公开(公告)号：US09184703B2
公开(公告)日：2015-11-10
申请号：US14087682
申请日：2013-11-22
申请人： Dali Systems Co., Ltd.
发明人： Kyoung Joon Cho , Wan Jong Kim , Shawn Patrick Stapleton
IPC分类号： H03F1/02 , H03F1/56 , H03F3/60 , H03F3/21
CPC分类号： H03F1/0288 , H03F1/0261 , H03F1/56 , H03F3/193 , H03F3/211 , H03F3/607 , H03F2200/451 , H03F2203/21106
摘要： A power amplifier using N-way Doherty structure with adaptive bias supply power tracking for extending the efficiency region over the high peak-to-average power:ratio of the multiplexing modulated signals such as wideband code division multiple access and orthogonal frequency division multiplexing is disclosed. In an embodiment, present invention uses a dual-feed distributed structure to an N-way Doherty amplifier to improve the isolation between at least one main amplifier and at least one peaking amplifier and, and also to improve both gain and efficiency performance at high output back-off power. Hybrid couplers can be used at either or both of the input and output. In at least some implementations, circuit space is also conserved due to the integration of amplification, power splitting and combining.
摘要翻译：公开了一种使用具有自适应偏置电源功率跟踪的N路Doherty结构的功率放大器，用于在高峰值与平均功率之间扩展效率区域：多路调制信号比例，如宽带码分多址和正交频分复用。在一个实施例中，本发明使用双馈馈分布式结构到N路Doherty放大器来改善至少一个主放大器与至少一个峰化放大器之间的隔离，并且还可以在高输出下提高增益和效率性能后退电源混合耦合器可以在输入和输出中的任一个或两者上使用。在至少一些实现中，由于放大，功率分配和组合的集成，电路空间也是保守的。

4. 发明申请

US20140191805A1 N-WAY DOHERTY DISTRIBUTED POWER AMPLIFIER WITH POWER TRACKING 审中-公开
标题翻译：具有电力跟踪功能的N-Way DOHERTY分布式功率放大器
公开(公告)号：US20140191805A1
公开(公告)日：2014-07-10
申请号：US14087682
申请日：2013-11-22
申请人： Dali Systems Co., Ltd.
发明人： Kyoung Joon Cho , Wan Jong Kim , Shawn Patrick Stapleton
IPC分类号： H03F1/02 , H03F3/21
CPC分类号： H03F1/0288 , H03F1/0261 , H03F1/56 , H03F3/193 , H03F3/211 , H03F3/607 , H03F2200/451 , H03F2203/21106
摘要： A power amplifier using N-way Doherty structure with adaptive bias supply power tracking for extending the efficiency region over the high peak-to-average power:ratio of the multiplexing modulated signals such as wideband code division multiple access and orthogonal frequency division multiplexing is disclosed. In an embodiment, present invention uses a dual-feed distributed structure to an N-way Doherty amplifier to improve the isolation between at least one main amplifier and at least one peaking amplifier and, and also to improve both gain and efficiency performance at high output back-off power. Hybrid couplers can be used at either or both of the input and output. In at least some implementations, circuit space is also conserved due to the integration of amplification, power splitting and combining.
摘要翻译：公开了一种使用具有自适应偏置电源功率跟踪的N路Doherty结构的功率放大器，用于在高峰值与平均功率之间扩展效率区域：多路调制信号比例，如宽带码分多址和正交频分复用。在一个实施例中，本发明使用双馈馈分布式结构到N路Doherty放大器来改善至少一个主放大器与至少一个峰化放大器之间的隔离，并且还可以在高输出下提高增益和效率性能后退电源混合耦合器可以在输入和输出中的任一个或两者上使用。在至少一些实现中，由于放大，功率分配和组合的集成，电路空间也是保守的。

5. 发明申请

US20180102747A1 DIGITAL HYBRID MODE POWER AMPLIFIER SYSTEM 审中-公开
公开(公告)号：US20180102747A1
公开(公告)日：2018-04-12
申请号：US15684580
申请日：2017-08-23
申请人： Dali Systems Co. Ltd.
发明人： Wan Jong Kim , Kyoung Joon Cho , Shawn Patrick Stapleton , Jong Heon Kim , Dali Yang
IPC分类号： H03F1/32 , H03F3/20 , H03F3/24 , H03F3/19
CPC分类号： H03F1/3247 , H03F1/3258 , H03F3/19 , H03F3/20 , H03F3/24 , H03F2200/129 , H03F2200/451 , H03F2201/3224 , H03F2201/3227 , H03F2201/3233
摘要： A RF-digital hybrid mode power amplifier system for achieving high efficiency and high linearity in wideband communication systems is disclosed. The present invention is based on the method of adaptive digital predistortion to linearize a power amplifier in the RF domain. The power amplifier characteristics such as variation of linearity and asymmetric distortion of the amplifier output signal are monitored by the narrowband feedback path and controlled by the adaptation algorithm in a digital module. Therefore, the present invention could compensate the nonlinearities as well as memory effects of the power amplifier systems and also improve performances, in terms of power added efficiency, adjacent channel leakage ratio and peak-to-average power ratio. The present disclosure enables a power amplifier system to be field reconfigurable and support multi-modulation schemes (modulation agnostic), multi-carriers and multi-channels. As a result, the digital hybrid mode power amplifier system is particularly suitable for wireless transmission systems, such as base-stations, repeaters, and indoor signal coverage systems, where baseband I-Q signal information is not readily available.

6. 发明授权

US09866414B2 Modulation agnostic digital hybrid mode power amplifier system and method 有权
公开(公告)号：US09866414B2
公开(公告)日：2018-01-09
申请号：US14337004
申请日：2014-07-21
申请人： DALI SYSTEMS CO. LTD.
发明人： Wan Jong Kim , Kyoung Joon Cho , Shawn Patrick Stapleton , Ying Xiao
IPC分类号： H04L27/36 , H04L27/00 , H03F1/32 , H03F1/30 , H03F3/08 , H03F3/19 , H03F3/24 , H04W24/02 , H04L25/06 , H04L25/08
CPC分类号： H03F1/304 , H03F1/3241 , H03F1/3247 , H03F1/3258 , H03F3/087 , H03F3/19 , H03F3/24 , H03F2200/18 , H03F2200/204 , H03F2200/207 , H03F2200/447 , H03F2200/451 , H03F2201/3206 , H03F2201/3209 , H03F2201/3212 , H03F2201/3215 , H03F2201/3224 , H03F2201/3227 , H04L25/067 , H04L25/08 , H04L27/0008 , H04L27/368 , H04W24/02
摘要： A RF-digital hybrid mode power amplifier system for achieving high efficiency and high linearity in wideband communication systems is disclosed. The present invention is based on the method of adaptive digital predistortion to linearize a power amplifier in the RF domain. The present disclosure enables a power amplifier system to be field reconfigurable and support multi-modulation schemes (modulation agnostic), multi-carriers and multi-channels. As a result, the digital hybrid mode power amplifier system is particularly suitable for wireless transmission systems, such as base-stations, repeaters, and indoor signal coverage systems, where baseband I-Q signal information is not readily available.

7. 发明申请

US20160269210A1 METHOD AND SYSTEM FOR BASEBAND PREDISTORTION LINEARIZATION IN MULTI-CHANNEL WIDEBAND COMMUNICATION SYSTEMS 有权
公开(公告)号：US20160269210A1
公开(公告)日：2016-09-15
申请号：US14991264
申请日：2016-01-08
申请人： Dali Systems Co. Ltd.
发明人： Wan-Jong Kim , Kyoung Joon Cho , Jong Heon Kim , Shawn Patrick Stapleton
IPC分类号： H04L27/26 , H04L25/03 , H04B1/04
CPC分类号： H04W40/02 , H03F1/3247 , H03F3/24 , H03F2200/336 , H03F2200/57 , H03F2201/3224 , H03F2201/3233 , H04B1/0475 , H04B7/022 , H04B2001/0425 , H04L25/03343 , H04L27/2618 , H04L27/362 , H04L2025/03414 , H04W24/02 , H04W24/04 , H04W40/00 , H04W72/04 , H04W72/0453
摘要： An efficient baseband predistortion linearization method for reducing the spectral regrowth and compensating memory effects in wideband communication systems using effective multiplexing modulation technique such as wideband code division multiple access and orthogonal frequency division multiplexing is disclosed. The present invention is based on the method of piecewise pre-equalized lookup table based predistortion, which is a cascade of a lookup table predistortion and piecewise pre-equalizers.

8. 发明申请

US20150092830A1 METHOD AND SYSTEM FOR BASEBAND PREDISTORTION LINEARIZATION IN MULTI-CHANNEL WIDEBAND COMMUNICATION SYSTEMS 有权
标题翻译：多通道宽带通信系统中基带预测线性化的方法与系统
公开(公告)号：US20150092830A1
公开(公告)日：2015-04-02
申请号：US14480285
申请日：2014-09-08
申请人： Dali Systems Co. Ltd.
发明人： Wan-Jong Kim , Kyoung Joon Cho , Jong Heon Kim , Shawn Patrick Stapleton
IPC分类号： H04L27/26 , H04L25/03
CPC分类号： H04W40/02 , H03F1/3247 , H03F3/24 , H03F2200/336 , H03F2200/57 , H03F2201/3224 , H03F2201/3233 , H04B1/0475 , H04B7/022 , H04B2001/0425 , H04L25/03343 , H04L27/2618 , H04L27/362 , H04L2025/03414 , H04W24/02 , H04W24/04 , H04W40/00 , H04W72/04 , H04W72/0453
摘要： An efficient baseband predistortion linearization method for reducing the spectral regrowth and compensating memory effects in wideband communication systems using effective multiplexing modulation technique such as wideband code division multiple access and orthogonal frequency division multiplexing is disclosed. The present invention is based on the method of piecewise pre-equalized lookup table based predistortion, which is a cascade of a lookup table predistortion and piecewise pre-equalizers.
摘要翻译：公开了一种使用诸如宽带码分多址和正交频分复用之类的有效复用调制技术在宽带通信系统中减少频谱再生长和补偿存储器效应的有效的基带预失真线性化方法。本发明基于基于分段预均衡查找表的预失真的方法，该预失真是查找表预失真和分段预均衡器的级联。

9. 发明申请

US20150010110A1 MODULATION AGNOSTIC DIGITAL HYBRID MODE POWER AMPLIFIER SYSTEM AND METHOD 审中-公开
标题翻译：调制惯性数字混合模式功率放大器系统及方法
公开(公告)号：US20150010110A1
公开(公告)日：2015-01-08
申请号：US14337004
申请日：2014-07-21
申请人： DALI SYSTEMS CO. LTD.
发明人： Wan Jong Kim , Kyoung Joon Cho , Shawn Patrick Stapleton , Ying Xiao
IPC分类号： H04L27/00 , H03F3/24 , H03F1/32 , H04L25/08 , H04L25/06
CPC分类号： H03F1/304 , H03F1/3241 , H03F1/3247 , H03F1/3258 , H03F3/087 , H03F3/19 , H03F3/24 , H03F2200/18 , H03F2200/204 , H03F2200/207 , H03F2200/447 , H03F2200/451 , H03F2201/3206 , H03F2201/3209 , H03F2201/3212 , H03F2201/3215 , H03F2201/3224 , H03F2201/3227 , H04L25/067 , H04L25/08 , H04L27/0008 , H04L27/368 , H04W24/02
摘要： A RF-digital hybrid mode power amplifier system for achieving high efficiency and high linearity in wideband communication systems is disclosed. The present invention is based on the method of adaptive digital predistortion to linearize a power amplifier in the RF domain. The present disclosure enables a power amplifier system to be field reconfigurable and support multi-modulation schemes (modulation agnostic), multi-carriers and multi-channels. As a result, the digital hybrid mode power amplifier system is particularly suitable for wireless transmission systems, such as base-stations, repeaters, and indoor signal coverage systems, where baseband I-Q signal information is not readily available.
摘要翻译：公开了一种用于在宽带通信系统中实现高效率和高线性度的RF数字混合模式功率放大器系统。本发明基于对RF域中的功率放大器进行线性化的自适应数字预失真的方法。本公开使得功率放大器系统能够是现场可重新配置的并且支持多调制方案（调制不可知），多载波和多信道。结果，数字混合模式功率放大器系统特别适用于诸如基站，中继器和室内信号覆盖系统之类的无线传输系统，其中基带I-Q信号信息不容易获得。

10. 发明授权

US11418155B2 Digital hybrid mode power amplifier system 有权
公开(公告)号：US11418155B2
公开(公告)日：2022-08-16
申请号：US16592615
申请日：2019-10-03
申请人： Dali Systems Co. Ltd.
发明人： Wan Jong Kim , Kyoung Joon Cho , Shawn Patrick Stapleton , Jong Heon Kim , Dali Yang
IPC分类号： H03F1/32 , H03F3/24 , H03F3/19 , H03F3/20
摘要： A RF-digital hybrid mode power amplifier system for achieving high efficiency and high linearity in wideband communication systems is disclosed. The present invention is based on the method of adaptive digital predistortion to linearize a power amplifier in the RF domain. The power amplifier characteristics such as variation of linearity and asymmetric distortion of the amplifier output signal are monitored by the narrowband feedback path and controlled by the adaptation algorithm in a digital module. Therefore, the present invention could compensate the nonlinearities as well as memory effects of the power amplifier systems and also improve performances, in terms of power added efficiency, adjacent channel leakage ratio and peak-to-average power ratio. The present disclosure enables a power amplifier system to be field reconfigurable and support multi-modulation schemes (modulation agnostic), multi-carriers and multi-channels. As a result, the digital hybrid mode power amplifier system is particularly suitable for wireless transmission systems, such as base-stations, repeaters, and indoor signal coverage systems, where baseband I-Q signal information is not readily available.

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