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公开(公告)号：US09445371B2
公开(公告)日：2016-09-13
申请号：US14754118
申请日：2015-06-29
CPC分类号： H03F1/0227 , H03F3/19 , H03F3/245 , H03F3/45179 , H03F3/45192 , H03F3/68 , H03F2200/102 , H03F2200/336 , H03F2200/451 , H04W52/0261 , Y02B70/30 , Y02D70/00 , Y02D70/1262 , Y02D70/142 , Y02D70/26
摘要： Apparatus and methods for wideband envelope tracking systems are disclosed herein. In certain implementations, an envelope tracker includes a DC-to-DC converter, a current digital-to-analog converter (DAC), an error amplifier, a feedback circuit, and an AC combiner. The current DAC receives a digital envelope signal, and uses the digital envelope signal to generate an envelope current. The feedback circuit is connected between an output and an inverting input of the error amplifier, and the envelope current is provided to the error amplifier's inverting input. Additionally, the AC combiner generates a power amplifier supply voltage by combining an output of the DC-to-DC converter and an output of the error amplifier.
摘要翻译： 本文公开了宽带包络跟踪系统的装置和方法。 在某些实现中，包络跟踪器包括DC-DC转换器，当前数模转换器（DAC），误差放大器，反馈电路和AC组合器。 当前DAC接收数字包络信号，并使用数字包络信号产生包络电流。 反馈电路连接在误差放大器的输出和反相输入端之间，并且将包络电流提供给误差放大器的反相输入。 此外，AC组合器通过组合DC-DC转换器的输出和误差放大器的输出来产生功率放大器电源电压。
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公开(公告)号：US20150295548A1
公开(公告)日：2015-10-15
申请号：US14728881
申请日：2015-06-02
CPC分类号： H03F3/245 , H01L2224/49171 , H03F1/0222 , H03F1/565 , H03F3/19 , H03F3/195 , H03F3/21 , H03F2200/102 , H03F2200/108 , H03F2200/387 , H03F2200/391 , H03F2200/451 , H03F2200/465 , H04B1/0458
摘要： Apparatus and methods for power amplifiers are disclosed. In one embodiment, a power amplifier circuit assembly includes a power amplifier and an impedance matching network. The impedance matching network is operatively associated with the power amplifier and is configured to provide a load line impedance to the power amplifier between about 6Ω and about 10Ω. The impedance matching network includes a fundamental matching circuit and one or more termination circuits, and the fundamental matching circuit and each of the of the one or more termination circuits include separate input terminals for coupling to an output of the power amplifier so as to allow the fundamental matching circuit and each of the one or more termination circuits to be separately tuned.
摘要翻译： 公开了用于功率放大器的装置和方法。 在一个实施例中，功率放大器电路组件包括功率放大器和阻抗匹配网络。 所述阻抗匹配网络与所述功率放大器可操作地相关联，并且被配置为向所述功率放大器提供负载线阻抗。 和约10＆OHgr。 阻抗匹配网络包括基本匹配电路和一个或多个终端电路，并且基本匹配电路和一个或多个终端电路中的每一个包括用于耦合到功率放大器的输出的单独的输入端子，以便允许 基本匹配电路和一个或多个终端电路中的每一个被单独调谐。
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公开(公告)号：US20150171799A1
公开(公告)日：2015-06-18
申请号：US14622482
申请日：2015-02-13
CPC分类号： H03F1/56 , H01L2223/6611 , H01L2223/6655 , H01L2224/48227 , H01L2924/10329 , H01L2924/13051 , H01L2924/1421 , H01L2924/19042 , H01L2924/19105 , H03F1/3205 , H03F1/565 , H03F3/19 , H03F3/21 , H03F3/245 , H03F3/601 , H03F2200/165 , H03F2200/171 , H03F2200/318 , H03F2200/411 , H03F2200/451 , Y10T29/4913
摘要： This disclosure relates to a harmonic termination circuit that is separate from a load line. In one embodiment, the load line is configured to match an impedance at the power amplifier output at a fundamental frequency of the power amplifier output and the harmonic termination circuit is configured to terminate at a phase corresponding to a harmonic frequency of the power amplifier output. According to certain embodiments, the load line and the harmonic termination circuit can be electrically coupled to the power amplifier output external to a power amplifier die via different output pins of the power amplifier die.
摘要翻译： 本公开涉及与负载线分离的谐波终端电路。 在一个实施例中，负载线被配置成匹配在功率放大器输出的基频处的功率放大器输出处的阻抗，并且谐波终端电路被配置为在对应于功率放大器输出的谐波频率的相位处终止。 根据某些实施例，负载线路和谐波终端电路可以通过功率放大器管芯的不同输出引脚电耦合到功率放大器管芯外部的功率放大器输出。
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34.发明申请公开(公告)号：US20140002188A1
公开(公告)日：2014-01-02
申请号：US13917384
申请日：2013-06-13
发明人： Howard E. Chen , Yifan Guo , Dinhphuoc Vu Hoang , Mehran Janani , Tin Myint Ko , Philip John Lehtola , Anthony James LoBianco , Hardik Bhupendra Modi , Hoang Mong Nguyen , Matthew Thomas Ozalas , Sandra Louise Petty-Weeks , Matthew Sean Read , Jens Albrecht Riege , David Steven Ripley , Hongxiao Shao , Hong Shen , Weimin Sun , Hsiang-Chih Sun , Patrick Lawrence Welch , Peter J. Zampardi, JR. , Guohao Zhang
IPC分类号： H03F3/19
CPC分类号： H03F1/0205 , H01L21/485 , H01L21/4853 , H01L21/4864 , H01L21/565 , H01L21/76898 , H01L21/78 , H01L21/8249 , H01L21/8252 , H01L22/14 , H01L23/3114 , H01L23/481 , H01L23/49811 , H01L23/49827 , H01L23/49838 , H01L23/49844 , H01L23/49861 , H01L23/49866 , H01L23/49894 , H01L23/50 , H01L23/522 , H01L23/552 , H01L23/66 , H01L24/45 , H01L24/48 , H01L24/49 , H01L24/85 , H01L24/97 , H01L27/0605 , H01L27/0623 , H01L27/092 , H01L29/0684 , H01L29/0821 , H01L29/0826 , H01L29/1004 , H01L29/20 , H01L29/205 , H01L29/36 , H01L29/66242 , H01L29/66863 , H01L29/737 , H01L29/7371 , H01L29/812 , H01L29/8605 , H01L2223/6611 , H01L2223/6616 , H01L2223/6644 , H01L2223/665 , H01L2223/6655 , H01L2224/05155 , H01L2224/05164 , H01L2224/05554 , H01L2224/05644 , H01L2224/45015 , H01L2224/45139 , H01L2224/45144 , H01L2224/45147 , H01L2224/48177 , H01L2224/48227 , H01L2224/48465 , H01L2224/48611 , H01L2224/48644 , H01L2224/48647 , H01L2224/48655 , H01L2224/48664 , H01L2224/48811 , H01L2224/48816 , H01L2224/48844 , H01L2224/48847 , H01L2224/48855 , H01L2224/48864 , H01L2224/4903 , H01L2224/49111 , H01L2224/49176 , H01L2224/85205 , H01L2224/85207 , H01L2224/85411 , H01L2224/85416 , H01L2224/85444 , H01L2224/85455 , H01L2224/85464 , H01L2924/00011 , H01L2924/10253 , H01L2924/10329 , H01L2924/12033 , H01L2924/12042 , H01L2924/1305 , H01L2924/13051 , H01L2924/1306 , H01L2924/13091 , H01L2924/1421 , H01L2924/15747 , H01L2924/181 , H01L2924/19105 , H01L2924/19107 , H01L2924/3011 , H01L2924/30111 , H01L2924/3025 , H03F1/565 , H03F3/187 , H03F3/19 , H03F3/195 , H03F3/21 , H03F3/213 , H03F3/245 , H03F3/347 , H03F3/45 , H03F3/60 , H03F2200/387 , H03F2200/451 , H03F2200/48 , H03F2200/555 , H01L2924/00 , H01L2924/00014
摘要： A power amplifier module includes a power amplifier including a GaAs bipolar transistor having a collector, a base abutting the collector, and an emitter, the collector having a doping concentration of at least about 3×1016 cm−3 at a junction with the base, the collector also having at least a first grading in which doping concentration increases away from the base; and an RF transmission line driven by the power amplifier, the RF transmission line including a conductive layer and finish plating on the conductive layer, the finish plating including a gold layer, a palladium layer proximate the gold layer, and a diffusion barrier layer proximate the palladium layer, the diffusion barrier layer including nickel and having a thickness that is less than about the skin depth of nickel at 0.9 GHz. Other embodiments of the module are provided along with related methods and components thereof.
摘要翻译： 功率放大器模块包括功率放大器，其包括具有集电极的GaAs双极晶体管，邻接集电极的基极和发射极，该集电极在与基极的连接处具有至少约3×1016cm-3的掺杂浓度， 所述收集器还具有至少第一分级，其中掺杂浓度从所述基底增加; 以及由功率放大器驱动的RF传输线，RF传输线包括在导电层上的导电层和精整电镀，精加工镀层包括金层，接近金层的钯层和靠近金层的扩散阻挡层 钯层，扩散阻挡层包括镍，并且其厚度小于0.9GHz处的镍的趋肤深度。 模块的其他实施例与其相关方法和组件一起提供。
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公开(公告)号：US11558015B2
公开(公告)日：2023-01-17
申请号：US17230269
申请日：2021-04-14
摘要： Fast envelope tracking systems are provided herein. In certain embodiments, an envelope tracking system for a power amplifier includes a switching regulator and a differential error amplifier configured to operate in combination with one another to generate a power amplifier supply voltage for the power amplifier based on an envelope of a radio frequency (RF) signal amplified by the power amplifier. The envelope tracking system further includes a differential envelope amplifier configured to amplify a differential envelope signal to generate a single-ended envelope signal that changes in relation to the envelope of the RF signal. Additionally, the differential error amplifier generates an output current operable to adjust a voltage level of the power amplifier supply voltage based on comparing the single-ended envelope signal to a reference signal.
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公开(公告)号：US20210184358A1
公开(公告)日：2021-06-17
申请号：US17249183
申请日：2021-02-23
摘要： Reconfigurable antenna systems with ground tuning pads are provided herein. In certain configurations, an antenna system includes an antenna element, a first tuning conductor spaced apart from the antenna element on a first side of the antenna element, a second tuning conductor spaced apart from the antenna element on a second side of the antenna element, a first ground tuning pad configured to receive a ground voltage, and a first switch electrically connected between the first tuning conductor and the first ground tuning pad. The first switch is operable to selectively connect the first tuning conductor to the first ground tuning pad to thereby tune the antenna element.
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公开(公告)号：US10937759B2
公开(公告)日：2021-03-02
申请号：US15593160
申请日：2017-05-11
摘要： This disclosure relates to a radio frequency (RF) transmission line for high performance RF applications. The RF transmission line includes a bonding layer having a bonding surface and configured to receive an RF signal, a barrier layer proximate the bonding layer, a diffusion barrier layer proximate the bonding layer and configured to prevent contaminant from entering the bonding layer, and a conductive layer proximate the diffusion barrier layer. The diffusion barrier layer has a thickness that allows the received RF signal to penetrate the diffusion barrier layer to the conductive layer. The diffusion barrier layer can be a nickel layer.
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公开(公告)号：US20200343865A1
公开(公告)日：2020-10-29
申请号：US16814807
申请日：2020-03-10
摘要： High bandwidth envelope trackers are provided herein. In certain embodiments, an envelope tracking system for a power amplifier includes a switching regulator that operates in combination with a high bandwidth amplifier to generate a power amplifier supply voltage for the power amplifier based on an envelope of a radio frequency (RF) signal amplified by the power amplifier. The high bandwidth amplifier includes an output that generates an output current for adjusting the power amplifier supply voltage, a first input that receives a reference signal, and a second input that receives an envelope signal indicating the envelope of the RF signal. The second input has lower input impedance than the first input to provide a rapid transient response and high envelope tracking bandwidth.
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公开(公告)号：US20200259458A1
公开(公告)日：2020-08-13
申请号：US16682410
申请日：2019-11-13
摘要： Fast envelope tracking systems are provided herein. In certain embodiments, an envelope tracking system for a power amplifier includes a switching regulator and a differential error amplifier configured to operate in combination with one another to generate a power amplifier supply voltage for the power amplifier based on an envelope of a radio frequency (RF) signal amplified by the power amplifier. The envelope tracking system further includes a differential envelope amplifier configured to amplify a differential envelope signal to generate a single-ended envelope signal that changes in relation to the envelope of the RF signal. Additionally, the differential error amplifier generates an output current operable to adjust a voltage level of the power amplifier supply voltage based on comparing the single-ended envelope signal to a reference signal.
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公开(公告)号：US20180375483A1
公开(公告)日：2018-12-27
申请号：US16011990
申请日：2018-06-19
摘要： High bandwidth envelope trackers are provided herein. In certain embodiments, an envelope tracking system for a power amplifier includes a switching regulator that operates in combination with a high bandwidth amplifier to generate a power amplifier supply voltage for the power amplifier based on an envelope of a radio frequency (RF) signal amplified by the power amplifier. The high bandwidth amplifier includes an output that generates an output current for adjusting the power amplifier supply voltage, a first input that receives a reference signal, and a second input that receives an envelope signal indicating the envelope of the RF signal. The second input has lower input impedance than the first input to provide a rapid transient response and high envelope tracking bandwidth.
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