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1. 发明授权

US06366162B1 Multi-impedance input stage 失效
标题翻译：多阻抗输入级
公开(公告)号：US06366162B1
公开(公告)日：2002-04-02
申请号：US09753145
申请日：2001-01-02
申请人： Chris W. Angell , Erik L. Bengtsson , Scott R. Justice , Aristotele Hadjichristos
发明人： Chris W. Angell , Erik L. Bengtsson , Scott R. Justice , Aristotele Hadjichristos
IPC分类号： G06G726
CPC分类号： H03F1/56 , H03F3/45089 , H03F3/72 , H03F2200/432 , H03F2203/45596 , H03F2203/45702 , H03F2203/7203 , H03F2203/7236
摘要： An input buffer circuit is operable to selectively present either low or high input impedance while maintaining uniform output impedance. The buffer is characterized by first and second amplifier circuits connected in parallel between an input to and an output from the buffer. The amplifiers are individually controlled between enabled and disabled states. When enabled, the first amplifier has low input impedance and predetermined output impedance and the second amplifier has high input impedance and the predetermined output impedance, and when disabled each amplifier has high input and output impedance. To operate the buffer to have low input impedance, the first amplifier is enabled while the second amplifier is disabled. To operate the buffer to have high input impedance, the second amplifier is enabled while the first amplifier is disabled. When an amplifier is disabled, its input and output impedances are sufficiently large that the disabled amplifier does not interfere with operation of the enabled amplifier.
摘要翻译：输入缓冲器电路可操作以选择性地呈现低或高输入阻抗，同时保持均匀的输出阻抗。缓冲器的特征在于在缓冲器的输入和输出之间并联连接的第一和第二放大器电路。放大器在启用和禁用状态之间单独控制。当使能时，第一放大器具有低输入阻抗和预定的输出阻抗，第二放大器具有高输入阻抗和预定输出阻抗，并且禁用时，每个放大器具有高输入和输出阻抗。为了使缓冲器工作，具有低输入阻抗，第一个放大器使能，而第二个放大器被禁用。为了操作缓冲区具有高输入阻抗，第二个放大器在第一个放大器禁用时使能。当禁止放大器时，其输入和输出阻抗足够大，使得禁用的放大器不会干扰使能放大器的工作。

2. 发明授权

US6078219A Wide range single stage variable gain amplifier 有权
标题翻译：宽范围单级可变增益放大器
公开(公告)号：US6078219A
公开(公告)日：2000-06-20
申请号：US181361
申请日：1998-10-28
申请人： Aristotele Hadjichristos , Scott R. Justice
发明人： Aristotele Hadjichristos , Scott R. Justice
IPC分类号： H03G1/00 , H03F3/45
CPC分类号： H03G1/0023
摘要： A wide range single stage variable gain amplifier is provided for receiving an input signal and outputting an amplitude varied version of the received input signal. In its most basic form, the wide range single stage variable gain amplifier includes an input circuit receiving an input signal and developing an input current, a first control circuit receiving the input current, the first control circuit being selectively controllable to output an attenuated version of the received input current, a second control circuit directly connected to the first control circuit for receiving the attenuated input current therefrom, the second control circuit being selectively controllable to output a further attenuated version of the attenuated input current, and an output circuit receiving the further attenuated input current and developing an amplitude varied version of the received input signal.
摘要翻译：提供宽范围的单级可变增益放大器，用于接收输入信号并输出所接收的输入信号的幅度变化版本。在其最基本的形式中，宽范围的单级可变增益放大器包括接收输入信号和显影输入电流的输入电路，接收输入电流的第一控制电路，第一控制电路被选择性地控制以输出衰减版本所接收的输入电流，直接连接到第一控制电路的第二控制电路，用于从其接收衰减的输入电流，第二控制电路是可选择的可控制的，以输出衰减的输入电流的进一步的衰减版本;以及输出电路，衰减的输入电流并且形成接收到的输入信号的幅度变化的版本。

3. 发明授权

US09000847B2 Digital tunable inter-stage matching circuit 有权
标题翻译：数字可调谐级间匹配电路
公开(公告)号：US09000847B2
公开(公告)日：2015-04-07
申请号：US13226397
申请日：2011-09-06
申请人： Yu Zhao , Babak Nejati , Nathan M Pletcher , Aristotele Hadjichristos
发明人： Yu Zhao , Babak Nejati , Nathan M Pletcher , Aristotele Hadjichristos
IPC分类号： H03F3/04 , H03H7/40 , H03F1/22 , H03F1/42 , H03F3/193
CPC分类号： H03F1/42 , H03F1/223 , H03F3/193 , H03F2200/318 , H03H7/40
摘要： A tunable inter-stage matching circuit that can improve performance is described. In an exemplary design, an apparatus comprises a driver amplifier and a power amplifier. The apparatus may further include an inter-stage matching circuit tunable in discrete steps for matching impedances between the driver amplifier and the power amplifier. The tunable inter-stage matching circuit may include a bank of capacitors, each capacitor of the bank coupled in series with a switch for coupling the capacitor to a ground voltage.
摘要翻译：描述了可以提高性能的可调谐级间匹配电路。在示例性设计中，装置包括驱动器放大器和功率放大器。该装置还可以包括可以在离散步骤中调节的级间匹配电路，用于匹配驱动器放大器和功率放大器之间的阻抗。可调谐级间匹配电路可以包括一组电容器，该组的每个电容器与用于将电容器耦合到接地电压的开关串联耦合。

4. 发明授权

US08633777B2 Methods and apparatus for inductors with integrated passive and active elements 有权
标题翻译：具有集成无源和有源元件的电感器的方法和装置
公开(公告)号：US08633777B2
公开(公告)日：2014-01-21
申请号：US12628502
申请日：2009-12-01
申请人： Zhang Jin , Aristotele Hadjichristos , Ockgoo Lee , Hongyan Yan , Guy Klemens , Maulin P. Bhagat , Thomas Myers , Norman L. Frederick , Junxiong Deng , Aleksandar Tasic , Bhushan S. Asuri , Mohammad Farazian
发明人： Zhang Jin , Aristotele Hadjichristos , Ockgoo Lee , Hongyan Yan , Guy Klemens , Maulin P. Bhagat , Thomas Myers , Norman L. Frederick , Junxiong Deng , Aleksandar Tasic , Bhushan S. Asuri , Mohammad Farazian
IPC分类号： H03B1/00
CPC分类号： H01L25/16 , H01F17/0006 , H01F27/40 , H01L23/645 , H01L2924/0002 , H01L2924/00
摘要： An integrated circuit is described. The integrated circuit includes an inductor that has a large empty area in the center of the inductor. The integrated circuit also includes additional circuitry. The additional circuitry is located within the large empty area in the center of the inductor. The additional circuitry may include a capacitor bank, transistors, electrostatic discharge (ESD) protection circuitry and other miscellaneous passive or active circuits.
摘要翻译：描述了集成电路。集成电路包括在电感器中心具有大的空白区域的电感器。集成电路还包括附加电路。附加电路位于电感器中心的大空区域内。附加电路可以包括电容器组，晶体管，静电放电（ESD）保护电路和其它各种无源或有源电路。

5. 发明申请

US20110316637A1 AMPLIFIER MODULE WITH MULTIPLE OPERATING MODES 有权
标题翻译：具有多种操作模式的放大器模块
公开(公告)号：US20110316637A1
公开(公告)日：2011-12-29
申请号：US13226400
申请日：2011-09-06
申请人： Nathan M. Pletcher , Aristotele Hadjichristos , Babak Nejati
发明人： Nathan M. Pletcher , Aristotele Hadjichristos , Babak Nejati
IPC分类号： H03F3/04
CPC分类号： H03F1/0277 , H03F1/56 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/72 , H03F2200/222 , H03F2200/27 , H03F2200/318 , H03F2200/387 , H03F2200/411 , H03F2200/451 , H03F2200/522 , H03F2200/75 , H03F2203/21136 , H03F2203/21139 , H03F2203/21142 , H03F2203/21157 , H03F2203/21175 , H03F2203/21196 , H03F2203/7206 , H03F2203/7236 , H03G1/0088
摘要： An amplifier module with multiple operating modes is described. In an exemplary design, an apparatus includes a plurality of amplifiers. The apparatus may also include a plurality of switches, each switch coupled to an output of an associated amplifier in the plurality of amplifiers and configured to provide an amplified signal in a first mode and bypass the associated amplifier and provide an associated bypass signal in a second mode. Further, the apparatus may include an output circuit including a plurality of matching circuits, each matching circuit coupled to an associated amplifier in the plurality of amplifiers and an associated switch in the plurality of switches.
摘要翻译：描述具有多种工作模式的放大器模块。在示例性设计中，装置包括多个放大器。该装置还可以包括多个开关，每个开关耦合到多个放大器中的相关联的放大器的输出，并且被配置为以第一模式提供放大的信号并且旁路相关的放大器并在第二模式中提供相关的旁路信号模式。此外，该装置可以包括包括多个匹配电路的输出电路，每个匹配电路耦合到多个放大器中的相关联的放大器以及多个开关中的关联开关。

6. 发明申请

US20110316636A1 DIGITAL TUNABLE INTER-STAGE MATCHING CIRCUIT 有权
标题翻译：数字可调节间歇匹配电路
公开(公告)号：US20110316636A1
公开(公告)日：2011-12-29
申请号：US13226397
申请日：2011-09-06
申请人： Yu Zhao , Babak Nejati , Nathan M. Pletcher , Aristotele Hadjichristos
发明人： Yu Zhao , Babak Nejati , Nathan M. Pletcher , Aristotele Hadjichristos
IPC分类号： H03H11/28 , H03F3/04
CPC分类号： H03F1/42 , H03F1/223 , H03F3/193 , H03F2200/318 , H03H7/40
摘要： A tunable inter-stage matching circuit that can improve performance is described. In an exemplary design, an apparatus comprises a driver amplifier and a power amplifier. The apparatus may further include an inter-stage matching circuit tunable in discrete steps for matching impedances between the driver amplifier and the power amplifier. The tunable inter-stage matching circuit may include a bank of capacitors, each capacitor of the bank coupled in series with a switch for coupling the capacitor to a ground voltage.
摘要翻译：描述了可以提高性能的可调谐级间匹配电路。在示例性设计中，装置包括驱动器放大器和功率放大器。该装置还可以包括可以在离散步骤中调节的级间匹配电路，用于匹配驱动器放大器和功率放大器之间的阻抗。可调谐级间匹配电路可以包括一组电容器，该组的每个电容器与用于将电容器耦合到接地电压的开关串联耦合。

7. 发明申请

US20110037516A1 MULTI-STAGE IMPEDANCE MATCHING 有权
标题翻译：多级阻抗匹配
公开(公告)号：US20110037516A1
公开(公告)日：2011-02-17
申请号：US12641228
申请日：2009-12-17
申请人： Babak Nejati , Yu Zhao , Nathan M. Pletcher , Aristotele Hadjichristos , Puay Hoe See
发明人： Babak Nejati , Yu Zhao , Nathan M. Pletcher , Aristotele Hadjichristos , Puay Hoe See
IPC分类号： H03F3/68
CPC分类号： H03F1/565 , H03F3/211 , H03F3/72
摘要： Exemplary techniques for performing impedance matching are described. In an exemplary embodiment, the apparatus may include an amplifier (e.g., a power amplifier) coupled to first and second matching circuits. The first matching circuit may include multiple stages coupled to a first node and may provide input impedance matching for the amplifier. The second matching circuit may include multiple stages coupled to a second node and may provide output impedance matching for the amplifier. At least one switch may be coupled between the first and second nodes and may bypass or select the amplifier. The first and second nodes may have a common impedance. The apparatus may further include a second amplifier coupled in parallel with the amplifier and further to the matching circuits. The second matching circuit may include a first input stage coupled to the amplifier, a second input stage coupled to the second amplifier, and a second stage coupled to the two input stages via switches.
摘要翻译：描述了用于执行阻抗匹配的示例性技术。在示例性实施例中，该装置可以包括耦合到第一和第二匹配电路的放大器（例如，功率放大器）。第一匹配电路可以包括耦合到第一节点的多个级并且可以为放大器提供输入阻抗匹配。第二匹配电路可以包括耦合到第二节点的多个级并且可以为放大器提供输出阻抗匹配。至少一个开关可以耦合在第一和第二节点之间，并且可以旁路或选择放大器。第一和第二节点可以具有公共阻抗。该装置还可以包括与放大器并联并且进一步耦合到匹配电路的第二放大器。第二匹配电路可以包括耦合到放大器的第一输入级，耦合到第二放大器的第二输入级，以及经由开关耦合到两个输入级的第二级。

8. 发明申请

US20110032035A1 AMPLIFIER MODULE WITH MULTIPLE OPERATING MODES 有权
标题翻译：具有多种操作模式的放大器模块
公开(公告)号：US20110032035A1
公开(公告)日：2011-02-10
申请号：US12757679
申请日：2010-04-09
申请人： Nathan M. Pletcher , Aristotele Hadjichristos , Babak Nejati
发明人： Nathan M. Pletcher , Aristotele Hadjichristos , Babak Nejati
IPC分类号： H03F3/16 , H03F1/00 , H03F3/68
CPC分类号： H03F1/0277 , H03F1/56 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/72 , H03F2200/222 , H03F2200/27 , H03F2200/318 , H03F2200/387 , H03F2200/411 , H03F2200/451 , H03F2200/522 , H03F2200/75 , H03F2203/21136 , H03F2203/21139 , H03F2203/21142 , H03F2203/21157 , H03F2203/21175 , H03F2203/21196 , H03F2203/7206 , H03F2203/7236 , H03G1/0088
摘要： An amplifier module with multiple operating modes is described. In an exemplary design, the amplifier module includes an amplifier (e.g., a power amplifier), a switch, and an output circuit. The amplifier receives and amplifies an input signal and provides an amplified signal in a first mode. The switch is coupled to the output of the amplifier and bypasses the amplifier and provides a bypass signal in a second mode. The output circuit is coupled to the amplifier and the switch. The output circuit performs output impedance matching for the amplifier in the first mode. The output circuit also (i) receives the amplified signal and provides an output signal in the first mode and (ii) receives the bypass signal and provides the output signal in the second mode. The amplifier is enabled in the first mode and disabled in the second mode.
摘要翻译：描述具有多种工作模式的放大器模块。在示例性设计中，放大器模块包括放大器（例如，功率放大器），开关和输出电路。放大器接收并放大输入信号并在第一模式中提供放大的信号。开关耦合到放大器的输出端，并且旁路放大器并在第二模式中提供旁路信号。输出电路耦合到放大器和开关。输出电路在第一模式下对放大器执行输出阻抗匹配。输出电路还（i）接收放大的信号并在第一模式中提供输出信号，并且（ii）接收旁路信号并在第二模式中提供输出信号。放大器在第一种模式下使能，在第二种模式下禁用。

9. 发明授权

US06738432B2 System and method for RF signal amplification 有权
标题翻译： RF信号放大的系统和方法
公开(公告)号：US06738432B2
公开(公告)日：2004-05-18
申请号：US09813741
申请日：2001-03-21
申请人： David R. Pehlke , Aristotele Hadjichristos
发明人： David R. Pehlke , Aristotele Hadjichristos
IPC分类号： H04L2704
CPC分类号： H03F1/0222 , H03F1/0277 , H03F2200/331 , H03F2200/504
摘要： A branched power amplifier circuit includes two or more amplifier segments or branches, each with a corresponding lossy modulator. The branched power amplifier may be dynamically resized by enabling different ones of its branches, to deliver peak efficiency at a number of different amplifier output power levels. Each amplifier branch operates in a saturated mode and selectively amplifies an RF input signal. The lossy modulators provide either supply voltage or supply current modulation to corresponding amplifier branches, thus imparting highly linear amplitude modulation to the overall output signal generated by branched power amplifier, despite its saturated mode operation. The branched power amplifier circuit may be configured such that particular combinations of segments have peak efficiencies matched to the needs of one or more air interface standards used in wireless mobile communication systems.
摘要翻译：分支功率放大器电路包括两个或更多个放大器段或分支，每个具有相应的有损调制器。分支功率放大器可以通过使其不同的分支动态地调整大小，以在多个不同的放大器输出功率电平上提供峰值效率。每个放大器分支工作在饱和模式，并有选择地放大RF输入信号。有损调制器为相应的放大器分支提供电源电压或电源电流调制，从而对分支功率放大器产生的总体输出信号赋予高度线性的幅度调制，尽管其饱和模式操作。分支功率放大器电路可以被配置为使得段的特定组合具有与在无线移动通信系统中使用的一个或多个空中接口标准的需要相匹配的峰值效率。

10. 发明授权

US08847351B2 Integrated power amplifier with load inductor located under IC die 有权
标题翻译：集成功率放大器，负载电感位于IC芯片下方
公开(公告)号：US08847351B2
公开(公告)日：2014-09-30
申请号：US12705493
申请日：2010-02-12
申请人： Guy Klemens , Thomas A Myers , Norman L Frederick, Jr. , Yu Zhao , Babak Nejati , Nathan M Pletcher , Aristotele Hadjichristos
发明人： Guy Klemens , Thomas A Myers , Norman L Frederick, Jr. , Yu Zhao , Babak Nejati , Nathan M Pletcher , Aristotele Hadjichristos
IPC分类号： H01L27/08
CPC分类号： H03F3/195 , H01L23/645 , H01L23/66 , H01L2223/6655 , H01L2223/6661 , H01L2224/16225 , H01L2924/00011 , H01L2924/00014 , H01L2924/1305 , H01L2924/19015 , H01L2924/3011 , H01L2924/00 , H01L2224/0401
摘要： A compact integrated power amplifier is described herein. In an exemplary design, an apparatus includes (i) an integrated circuit (IC) die having at least one transistor for a power amplifier and (ii) an IC package having a load inductor for the power amplifier. The IC die is mounted on the IC package with the transistor(s) located over the load inductor. In an exemplary design, the IC die includes a transistor manifold that is placed over the load inductor on the IC package. The transistor(s) are fabricated in the transistor manifold, have a drain connection in the center of the transistor manifold, and have source connections on two sides of the transistor manifold. The IC die and the IC package may include one or more additional power amplifiers. The transistor(s) for each power amplifier may be located over the load inductor for that power amplifier.
摘要翻译：这里描述了紧凑的集成功率放大器。在示例性设计中，装置包括（i）具有用于功率放大器的至少一个晶体管的集成电路（IC）管芯，以及（ii）具有用于功率放大器的负载电感器的IC封装。 IC芯片安装在IC封装上，晶体管位于负载感应器上方。在示例性设计中，IC管芯包括放置在IC封装上的负载电感器上的晶体管歧管。晶体管制造在晶体管歧管中，在晶体管歧管的中心具有漏极连接，并且在晶体管歧管的两侧具有源极连接。 IC芯片和IC封装可以包括一个或多个附加的功率放大器。每个功率放大器的晶体管可以位于该功率放大器的负载电感上。

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