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公开(公告)号：US20170005624A1
公开(公告)日：2017-01-05
申请号：US15191954
申请日：2016-06-24
IPC分类号： H03F1/32 , H04B1/3827 , H03F3/19 , H03F3/24 , H03F3/193
CPC分类号： H03F1/3205 , H03F1/0266 , H03F1/32 , H03F3/19 , H03F3/193 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/4508 , H03F3/45179 , H03F2200/102 , H03F2200/105 , H03F2200/15 , H03F2200/294 , H03F2200/451 , H03F2201/3215 , H03F2201/3236 , H04B1/3827 , H04B1/40 , H04B1/48 , H04B1/525 , H04B2001/485 , H04W88/02
摘要： A linearization circuit reduces intermodulation distortion in a parallel amplifier that includes a first stage and a second stage. The linearization circuit receives a first signal that includes a first frequency and a second frequency and generates a difference signal having a frequency approximately equal to the difference of the first frequency and the second frequency, generates an envelope signal based at least in part on a power level of the first signal, and adjusts a magnitude of the difference signal based on the envelope signal. When the parallel amplifier receives the first signal at an input terminal, the first stage receives the adjusted signal, and the second stage does not receive the adjusted signal, intermodulation between the adjusted signal and the first signal cancels at least a portion of the intermodulation between the first frequency and the second frequency from the output of the parallel amplifier.
摘要翻译： 线性化电路减少包括第一级和第二级的并联放大器中的互调失真。 线性化电路接收包括第一频率和第二频率的第一信号，并产生具有大致等于第一频率和第二频率的差的频率的差分信号，至少部分地基于功率产生包络信号 电平，并且基于包络信号来调整差分信号的幅度。 当并联放大器在输入端接收到第一信号时，第一级接收经调整的信号，第二级不接收经调整的信号，经调整的信号与第一信号之间的互调消除了至少一部分互调之间的互调， 第一个频率和第二个频率来自并行放大器的输出。
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公开(公告)号：US20150349730A1
公开(公告)日：2015-12-03
申请号：US14825053
申请日：2015-08-12
发明人： Ping Li , Paul T. DiCarlo
IPC分类号： H03F3/19 , H03F3/21 , H04B1/3827 , H03F1/02
CPC分类号： H03G3/3042 , H03F1/0205 , H03F3/19 , H03F3/195 , H03F3/21 , H03F3/211 , H03F3/213 , H03F3/24 , H03F2200/129 , H03F2200/18 , H03F2200/336 , H03F2200/387 , H03F2200/451 , H03G3/007 , H04B1/3827
摘要： Apparatus and methods for biasing a power amplifier are disclosed. In one embodiment, a method of biasing a power amplifier includes shaping an enable signal using a time-dependent signal generator to generate a control current, amplifying the control current using a current amplifier to generate a correction current, and generating a bias current for a power amplifier using a primary biasing circuit. The primary biasing circuit is configured to use the correction current to correct for a variation in gain of the power amplifier when the power amplifier is enabled.
摘要翻译： 公开了用于偏置功率放大器的装置和方法。 在一个实施例中，偏置功率放大器的方法包括使用时间相关的信号发生器对使能信号进行整形以产生控制电流，使用电流放大器放大控制电流以产生校正电流，并产生用于 功率放大器使用主偏置电路。 主要偏置电路被配置为当功率放大器被使能时，使用校正电流来校正功率放大器的增益的变化。
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公开(公告)号：US20140210552A1
公开(公告)日：2014-07-31
申请号：US14242150
申请日：2014-04-01
发明人： Ping Li , Paul T. DiCarlo
CPC分类号： H03G3/3042 , H03F1/0205 , H03F3/19 , H03F3/195 , H03F3/21 , H03F3/211 , H03F3/213 , H03F3/24 , H03F2200/129 , H03F2200/18 , H03F2200/336 , H03F2200/387 , H03F2200/451 , H03G3/007 , H04B1/3827
摘要： Apparatus and methods for biasing a power amplifier are disclosed. In one embodiment, a method of biasing a power amplifier includes shaping an enable signal using a time-dependent signal generator to generate a control current, amplifying the control current using a current amplifier to generate a correction current, and generating a bias current for a power amplifier using a primary biasing circuit. The primary biasing circuit is configured to use the correction current to correct for a variation in gain of the power amplifier when the power amplifier is enabled.
摘要翻译： 公开了用于偏置功率放大器的装置和方法。 在一个实施例中，偏置功率放大器的方法包括使用时间相关的信号发生器对使能信号进行整形以产生控制电流，使用电流放大器放大控制电流以产生校正电流，并产生用于 功率放大器采用主偏置电路。 主要偏置电路被配置为当功率放大器被使能时，使用校正电流来校正功率放大器的增益的变化。
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44.发明申请DEVICES AND METHODS RELATED TO INTERCONNECT CONDUCTORS TO REDUCE DE-LAMINATION 有权与互连导体相关的器件和方法，以减少去层叠公开(公告)号：US20130221501A1
公开(公告)日：2013-08-29
申请号：US13744250
申请日：2013-01-17
CPC分类号： H01L23/66 , H01L23/60 , H01L24/03 , H01L24/05 , H01L25/18 , H01L27/0255 , H01L27/0292 , H01L29/6609 , H01L29/66143 , H01L29/861 , H01L29/868 , H01L29/872 , H01L2223/6644 , H01L2223/6677 , H01L2223/6683 , H01L2224/05554 , H01L2924/10329 , H01L2924/12031 , H01L2924/12032 , H01L2924/1205 , H01L2924/1306 , H01L2924/1423 , H01L2924/30205 , H04B1/16 , H01L2924/00
摘要： Disclosed are systems, devices and methods for utilizing an interconnect conductor to inhibit or reduce the likelihood of de-lamination of a passivation layer of an integrated circuit die. In some implementations, a metal layer in ohmic contact with an intrinsic region of a semiconductor substrate can be partially covered by a passivation layer such as a dielectric layer. An interconnect conductor electrically connected to the metal layer can include an extension that covers an edge of the passivation layer to thereby inhibit the edge from lifting up. In some implementations, the metal layer in combination with a contact pad also in ohmic contact with the intrinsic region can yield a conduction path through the intrinsic region during an electrostatic discharge (ESD) event. In such a configuration, the interconnect conductor can route the ESD charge to a ground.
摘要翻译： 公开了用于利用互连导体抑制或降低集成电路管芯的钝化层去层压的可能性的系统，装置和方法。 在一些实施方案中，与半导体衬底的本征区域欧姆接触的金属层可以被诸如电介质层的钝化层部分地覆盖。 电连接到金属层的互连导体可以包括覆盖钝化层的边缘从而阻止边缘提升的延伸部。 在一些实施方案中，与静电放电（ESD）事件中的本征区域的导电路径可以产生与本征区域欧姆接触的接触焊盘组合的金属层。 在这种配置中，互连导体可以将ESD电荷路由到地。
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公开(公告)号：US20240364369A1
公开(公告)日：2024-10-31
申请号：US18771618
申请日：2024-07-12
发明人： Florinel G. Balteanu , Yu Zhu , Paul T. DiCarlo
CPC分类号： H04B1/0078 , H04B1/0458 , H04B1/1027 , H04B2001/0408 , H04B2001/1063
摘要： Apparatus and methods for envelope controlled radio frequency (RF) switches are provided. In certain embodiments, a power amplifier provides an RF signal to an antenna by way of an RF switch. Additionally, the envelope signal is used not only to control a power amplifier supply voltage of the power amplifier, but also to control a regulated voltage used to turn on the RF switch. For example, a level shifter can use a regulated voltage from charge pump circuitry to turn on the RF switch, and the envelope signal can be provided to the charge pump circuitry and used to control the voltage level of the regulated voltage over time.
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公开(公告)号：US20240275381A1
公开(公告)日：2024-08-15
申请号：US18437539
申请日：2024-02-09
发明人： Yu Zhu , Zhan Jiang , Steven J. Belletete , Paul T. DiCarlo
IPC分类号： H03K17/687 , H04B1/00 , H04W88/06
CPC分类号： H03K17/6871 , H04B1/0064 , H04W88/06
摘要： Biasing of radio frequency (RF) switches for hot switching is disclosed. In certain implementations, an RF switch includes a first series switching circuit connected between a first pole and a first throw and a second series switching circuit connected between the first pole and a second throw. Additionally, a control circuit controls the first series switching circuit with a first switch control signal and the second series switching circuit with a second switch control signal to provide a transition of the RF switch from a first state in which the first series switching circuit is turned on and second series switching circuit is turned off to a second state in which the first series switching circuit is turned off and the second series switching circuit is turned on. The control circuit turns on the second series switching circuit before turning off the first series switching circuit when providing the transition.
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公开(公告)号：US12028072B2
公开(公告)日：2024-07-02
申请号：US17898571
申请日：2022-08-30
IPC分类号： H03K3/356 , H01L23/66 , H02M3/07 , H03K17/687 , H03K19/0185 , H04B1/44
CPC分类号： H03K3/356113 , H01L23/66 , H03K17/6872 , H03K19/018521 , H04B1/44 , H01L2223/6677 , H02M3/07
摘要： Disclosed herein are silicon-on-insulator (SOI) switches and associated control circuits having level shifters configured to provide increased voltages (positive and/or negative) to the switches. The disclosed level shifters can be configured to provide increased voltages and can be used with high-linearity switches and/or can improve the linearity of switches. The improved switch performance can improve front end module performance for applications such as carrier aggregation (CA) and multiple input multiple output (MIMO) as well as with protocols such as Long-Term Evolution Advanced (or LTE-A).
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公开(公告)号：US11996832B2
公开(公告)日：2024-05-28
申请号：US18209441
申请日：2023-06-13
发明人： Hailing Wang , Dylan Charles Bartle , Hanching Fuh , Jerod F. Mason , David Scott Whitefield , Paul T. DiCarlo
CPC分类号： H03K17/161 , H01L23/66 , H01L27/1203 , H03K17/102 , H03K17/122 , H03K17/693 , H01L2223/6677 , H03K2217/0018 , H04B1/38
摘要： Disclosed herein are switching or other active FET configurations that implement a branch design with one or more interior FETs of a main path coupled in parallel with one or more auxiliary FETs of an auxiliary path. Such designs include a circuit assembly for performing a switching function that includes a branch with a plurality of auxiliary FETs coupled in series and a main FET coupled in parallel with an interior FET of the plurality of auxiliary FETs. The body nodes of the FETs can be interconnected and/or connected to a body bias network. The body nodes of the FETs can be connected to body bias networks to enable individual body bias voltages to be used for individual or groups of FETs.
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公开(公告)号：US11695454B2
公开(公告)日：2023-07-04
申请号：US17564033
申请日：2021-12-28
IPC分类号： H04B7/0413 , H04B7/0404 , H04L25/06
CPC分类号： H04B7/0413 , H04B7/0404 , H04L25/06
摘要： Apparatus and methods for multi-antenna communications are provided. In certain embodiments, a communication system includes an antenna array including a plurality of antenna elements, and a plurality of RF circuit channels each coupled to a corresponding one of the antenna elements. The plurality of RF circuit channels generate two or more analog baseband signals in response to the antenna array receiving a radio wave. The communication system further includes a controllable amplification and combining circuit that generates two or more amplified analog baseband signals based on amplifying each of the two or more analog baseband signals with a separately controllable gain, and that combines the two or more amplified analog baseband signals to generate a combined analog baseband signal.
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公开(公告)号：US11677395B2
公开(公告)日：2023-06-13
申请号：US17889325
申请日：2022-08-16
发明人： Hailing Wang , Dylan Charles Bartle , Hanching Fuh , Jerod F. Mason , David Scott Whitefield , Paul T. DiCarlo
CPC分类号： H03K17/161 , H01L23/66 , H01L27/1203 , H03K17/102 , H03K17/122 , H03K17/693 , H01L2223/6677 , H03K2217/0018 , H04B1/38
摘要： Disclosed herein are switching or other active FET configurations that implement a branch design with one or more interior FETs of a main path coupled in parallel with one or more auxiliary FETs of an auxiliary path. Such designs include a circuit assembly for performing a switching function that includes a branch with a plurality of auxiliary FETs coupled in series and a main FET coupled in parallel with an interior FET of the plurality of auxiliary FETs. The body nodes of the FETs can be interconnected and/or connected to a body bias network. The body nodes of the FETs can be connected to body bias networks to enable individual body bias voltages to be used for individual or groups of FETs.
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