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1. 发明申请

US20150180423A1 DISTORTION CANCELLATION FOR LOW NOISE AMPLIFIER (LNA) NON-LINEAR SECOND ORDER PRODUCTS 有权
标题翻译：低噪声放大器（LNA）非线性第二订单产品的失败消除
公开(公告)号：US20150180423A1
公开(公告)日：2015-06-25
申请号：US14133719
申请日：2013-12-19
申请人： QUALCOMM INCORPORATED
发明人： Janakiram Ganesh Sankaranarayanan
IPC分类号： H03F1/26 , H03F3/68 , H03F3/193
CPC分类号： H03F1/26 , H03F1/223 , H03F1/3205 , H03F3/193 , H03F3/68 , H03F2200/09 , H03F2200/144 , H03F2200/151 , H03F2200/181 , H03F2200/294 , H03F2200/372 , H03F2200/451 , H03F2200/492 , H03F2200/541
摘要： A device includes a main low noise amplifier (LNA) stage configured to amplify a single-ended communication signal, an auxiliary LNA stage coupled to the main LNA stage, the auxiliary LNA stage configured to cancel non-linear second order products generated by the main LNA stage, and a load circuit configured to receive an output of the main LNA stage and an output of the auxiliary LNA stage, the load circuit configured to convert the single-ended communication signal to a differential signal.
摘要翻译：一种装置包括被配置为放大单端通信信号的主低噪声放大器（LNA）级，耦合到主LNA级的辅助LNA级，辅助LNA级被配置为消除由主LNA级产生的非线性二阶乘积 LNA级，负载电路被配置为接收主LNA级的输出和辅助LNA级的输出，该负载电路被配置为将单端通信信号转换为差分信号。

2. 发明申请

US20150084690A1 Gain Invariant Impedance Feedback Amplifier 有权
标题翻译：增益不变阻抗反馈放大器
公开(公告)号：US20150084690A1
公开(公告)日：2015-03-26
申请号：US14049588
申请日：2013-10-09
申请人： Broadcom Corporation
发明人： Giuseppe Cusmai , Vijayaramalingam Periasamy , Xi Chen , Ramon Alejandro Gomez
IPC分类号： H03F3/21 , H03F3/217
CPC分类号： H03F3/2171 , H03F1/22 , H03F1/26 , H03F1/34 , H03F1/56 , H03F3/19 , H03F3/245 , H03F2200/123 , H03F2200/151 , H03F2200/498
摘要： A system includes a weighting element, a transconductance circuit, a feedback loop, and an auxiliary loop. In some implementations, the transconductance circuit may accept an input and provide a first portion of an output for amplification at a variable amplification level to generate an amplifier output. The feedback loop may provide a portion of the amplifier output as a first feedback to the input. The first feedback may be associated with an impedance that may vary with the amplification level. The auxiliary loop may provide a second feedback to the input to reduce the dependence of the impedance on the amplification level.
摘要翻译：系统包括加权元件，跨导电路，反馈回路和辅助回路。在一些实现中，跨导电路可以接受输入并提供输出的第一部分用于以可变放大电平进行放大以产生放大器输出。反馈回路可以将放大器输出的一部分提供给输入的第一反馈。第一反馈可能与可能随放大电平变化的阻抗相关联。辅助回路可以向输入端提供第二反馈以减少阻抗对放大电平的依赖性。

3. 发明申请

US20100066452A1 WIDEBAND LOW-NOISE AMPLIFIER 有权
标题翻译：宽带低噪声放大器
公开(公告)号：US20100066452A1
公开(公告)日：2010-03-18
申请号：US12595163
申请日：2008-05-16
申请人： Munenari Kawashima , Yo Yamaguchi , Kazuhiro Uehara , Kenjiro Nishikawa
发明人： Munenari Kawashima , Yo Yamaguchi , Kazuhiro Uehara , Kenjiro Nishikawa
IPC分类号： H03F1/34
CPC分类号： H03F1/34 , H03F1/26 , H03F1/42 , H03F1/56 , H03F3/19 , H03F2200/108 , H03F2200/144 , H03F2200/151 , H03F2200/222 , H03F2200/294 , H03F2200/36 , H03F2200/451
摘要： A wideband low-noise amplifier of the present invention is designed such that an input terminal is connected to a base of a first transistor, one terminal of a first passive element, and one terminal of a third passive element; an emitter of the first transistor is grounded; a collector of the first transistor is connected to an output terminal, a base of a second transistor, one terminal of a capacitor, and one terminal of a second passive element; the other terminal of the first passive element is connected to the other terminal of the capacitor; an emitter of the second transistor is connected to the other terminal of the third passive element; and a power terminal is connected to a collector of the second transistor and the other terminal of the second passive element, wherein impedance of the third passive element is determined based on impedance of the first transistor whose emitter size is determined to suite desired saturation level of amplification, thus establishing input impedance matching.
摘要翻译：本发明的宽带低噪声放大器被设计成使得输入端子连接到第一晶体管的基极，第一无源元件的一个端子和第三无源元件的一个端子; 第一晶体管的发射极接地; 第一晶体管的集电极连接到输出端子，第二晶体管的基极，电容器的一个端子和第二无源元件的一个端子; 第一无源元件的另一个端子连接到电容器的另一个端子; 第二晶体管的发射极连接到第三无源元件的另一个端子; 并且电源端子连接到所述第二晶体管的集电极和所述第二无源元件的另一端子，其中所述第三无源元件的阻抗基于所述第一晶体管的阻抗来确定，所述第一晶体管的发射极尺寸被确定为将所需的饱和电平放大，从而建立输入阻抗匹配。

4. 发明申请

US20180332377A1 System and Method for Signal Read-Out Using Source Follower Feedback 审中-公开
公开(公告)号：US20180332377A1
公开(公告)日：2018-11-15
申请号：US16045372
申请日：2018-07-25
申请人： Infineon Technologies AG
发明人： Francesco Polo , Richard Gaggl
IPC分类号： H04R1/04 , H03F3/50 , H03F1/14 , H03F3/45
CPC分类号： H04R1/04 , H03F1/14 , H03F3/45179 , H03F3/505 , H03F2200/03 , H03F2200/151 , H03F2200/153 , H03F2203/45116 , H03F2203/5033 , H04R2201/003
摘要： In accordance with an embodiment, a circuit includes an amplifier and a programmable capacitor coupled between an output of the first non-inverting and the input of the first amplifier.

5. 发明授权

US09866939B2 System and method for signal read-out using source follower feedback 有权
公开(公告)号：US09866939B2
公开(公告)日：2018-01-09
申请号：US15050972
申请日：2016-02-23
申请人： Infineon Technologies AG
发明人： Francesco Polo , Richard Gaggl
IPC分类号： G06G7/12 , H04R1/04 , H03F3/45
CPC分类号： H04R1/04 , H03F1/14 , H03F3/45179 , H03F3/505 , H03F2200/03 , H03F2200/151 , H03F2200/153 , H03F2203/45116 , H03F2203/5033 , H04R2201/003
摘要： An embodiment amplifier circuit includes a pair of subcircuits that includes a first subcircuit and a second subcircuit, each of which includes a buffer amplifier and a feedback circuit that includes a feedback capacitor. The amplifier circuit also includes a pair of output terminals. The first subcircuit and the second subcircuit each generate a different output signal of a pair of output signals that includes a first output signal and a second output signal. The amplifier circuit is configured for receiving a positive differential input signal at the first subcircuit, receiving a negative differential input signal at the second subcircuit, and receiving the pair of output signals at the pair of output terminals. The amplifier circuit is also configured for transmitting the first output signal to the feedback circuit of the first subcircuit, and transmitting the second output signal to the feedback circuit of the second subcircuit.

6. 发明授权

US09166540B2 Gain invariant impedance feedback amplifier 有权
标题翻译：增益不变阻抗反馈放大器
公开(公告)号：US09166540B2
公开(公告)日：2015-10-20
申请号：US14049588
申请日：2013-10-09
申请人： Broadcom Corporation
发明人： Giuseppe Cusmai , Vijayaramalingam Periasamy , Xi Chen , Ramon Alejandro Gomez
IPC分类号： H03F1/38 , H03F3/217 , H03F1/22 , H03F1/26 , H03F1/34 , H03F1/56 , H03F3/19 , H03F3/24
CPC分类号： H03F3/2171 , H03F1/22 , H03F1/26 , H03F1/34 , H03F1/56 , H03F3/19 , H03F3/245 , H03F2200/123 , H03F2200/151 , H03F2200/498
摘要： A system includes a weighting element, a transconductance circuit, a feedback loop, and an auxiliary loop. In some implementations, the transconductance circuit may accept an input and provide a first portion of an output for amplification at a variable amplification level to generate an amplifier output. The feedback loop may provide a portion of the amplifier output as a first feedback to the input. The first feedback may be associated with an impedance that may vary with the amplification level. The auxiliary loop may provide a second feedback to the input to reduce the dependence of the impedance on the amplification level.
摘要翻译：系统包括加权元件，跨导电路，反馈回路和辅助回路。在一些实现中，跨导电路可以接受输入并提供输出的第一部分用于以可变放大电平进行放大以产生放大器输出。反馈回路可以将放大器输出的一部分提供给输入的第一反馈。第一反馈可能与可能随放大电平变化的阻抗相关联。辅助回路可以向输入端提供第二反馈以减少阻抗对放大电平的依赖性。

7. 发明申请

US20100301946A1 Switchable Multiband LNA Design 有权
标题翻译：可切换多频段LNA设计
公开(公告)号：US20100301946A1
公开(公告)日：2010-12-02
申请号：US12599966
申请日：2008-05-19
申请人： Jonathan Borremans
发明人： Jonathan Borremans
IPC分类号： H03F1/34 , H03F1/22
CPC分类号： H03F1/223 , H03F1/342 , H03F1/42 , H03F1/56 , H03F3/195 , H03F3/72 , H03F2200/111 , H03F2200/151 , H03F2200/222 , H03F2200/294 , H03F2200/306 , H03F2200/378 , H03F2200/429 , H03F2200/451 , H03F2203/7209
摘要： A low noise amplifying (LNA) circuit comprising an amplifying section (11, 12) and a feedback means (14) arranged for providing input matching from the output to the input. The LNA circuit further comprises at least one frequency band determining inductor (15) having a predetermined resonance frequency for influencing at least one frequency band in which the amplifying section operates. The at least one inductor is directly connected to the output of the circuit and the feedback means (14) provides a feedback connection for the section (s) to the input. In this way, the at least one frequency band in which the amplifying section operates is substantially completely determined by the at least one frequency band determining inductor (15).
摘要翻译：一种低噪声放大（LNA）电路，包括放大部分（11,12）和反馈装置（14），反馈装置（14）用于提供从输出到输入的输入匹配。 LNA电路还包括具有预定谐振频率的至少一个频带确定电感器（15），用于影响放大部分工作的至少一个频带。至少一个电感器直接连接到电路的输出端，并且反馈装置（14）提供用于输入端的部分的反馈连接。以这种方式，放大部分工作的至少一个频带基本上完全由至少一个频带确定电感器（15）确定。

8. 发明授权

US06873207B2 Power amplification circuit and communication device using the same 失效
标题翻译：功率放大电路和通信设备使用相同
公开(公告)号：US06873207B2
公开(公告)日：2005-03-29
申请号：US09993698
申请日：2001-11-27
申请人： Keiichi Sakuno
发明人： Keiichi Sakuno
IPC分类号： H03F1/02 , H03F1/34 , H03F3/24 , H04B1/04 , H03F1/36
CPC分类号： H03F1/34 , H03F2200/151 , H03F2200/372
摘要： A power amplification circuit, and a communication device using the same, which are capable of suppressing gain decreases of a power amplifier due to increases in input signal power in a state near the saturation operation, capable of reducing its size, and low in distortion and high in efficiency. The power amplification circuit includes a power amplifier and a negative feedback circuit connected between a signal input terminal and a signal output terminal of the power amplifier. Impedance of the negative feedback circuit depends on a signal voltage occurring across the negative feedback circuit. By adjusting the characteristic that the negative feedback quantity of the negative feedback circuit to the power amplifier is variable depending on input signal power, gain fluctuations of the power amplifier due to increases or decreases of input signal power or output signal power around a specified output signal power are suppressed.
摘要翻译：功率放大电路及其使用方法的功能放大电路能够抑制在饱和运算附近的状态下由于输入信号功率的增加导致的功率放大器的增益减小，能够减小其尺寸，并且具有低的失真和效率高功率放大电路包括功率放大器和连接在功率放大器的信号输入端子和信号输出端子之间的负反馈电路。负反馈电路的阻抗取决于负反馈电路两端产生的信号电压。通过调整负值反馈电路对功率放大器的负反馈量根据输入信号功率而变化的特性，由于输入信号功率的增减或输出信号功率在指定输出信号周围的增益波动权力被抑制

9. 发明授权

US09178473B2 Distortion cancellation for low noise amplifier (LNA) non-linear second order products 有权
标题翻译：低噪声放大器（LNA）非线性二阶产品的失真消除
公开(公告)号：US09178473B2
公开(公告)日：2015-11-03
申请号：US14133719
申请日：2013-12-19
申请人： QUALCOMM Incorporated
发明人： Janakiram Ganesh Sankaranarayanan
IPC分类号： H03F3/68 , H03F1/26 , H03F3/193 , H03F1/22 , H03F1/32
CPC分类号： H03F1/26 , H03F1/223 , H03F1/3205 , H03F3/193 , H03F3/68 , H03F2200/09 , H03F2200/144 , H03F2200/151 , H03F2200/181 , H03F2200/294 , H03F2200/372 , H03F2200/451 , H03F2200/492 , H03F2200/541
摘要： A device includes a main low noise amplifier (LNA) stage configured to amplify a single-ended communication signal, an auxiliary LNA stage coupled to the main LNA stage, the auxiliary LNA stage configured to cancel non-linear second order products generated by the main LNA stage, and a load circuit configured to receive an output of the main LNA stage and an output of the auxiliary LNA stage, the load circuit configured to convert the single-ended communication signal to a differential signal.
摘要翻译：一种装置包括被配置为放大单端通信信号的主低噪声放大器（LNA）级，耦合到主LNA级的辅助LNA级，辅助LNA级被配置为消除由主LNA级产生的非线性二阶乘积 LNA级，负载电路被配置为接收主LNA级的输出和辅助LNA级的输出，该负载电路被配置为将单端通信信号转换为差分信号。

10. 发明申请

US20140157011A1 LOW-IMPEDANCE REFERENCE VOLTAGE GENERATOR 有权
标题翻译：低阻抗基准电压发生器
公开(公告)号：US20140157011A1
公开(公告)日：2014-06-05
申请号：US13995474
申请日：2012-03-16
申请人： Richard Y. Tseng
发明人： Richard Y. Tseng
IPC分类号： G05F1/46 , G06F1/26
CPC分类号： H04B1/04 , G05F1/465 , G05F1/468 , G05F1/565 , G05F1/59 , G05F3/24 , G06F1/26 , H03F3/24 , H03F3/45179 , H03F3/45192 , H03F2200/151 , H03F2203/45114 , H03F2203/45151 , H04B2001/0408
摘要： Described herein is an apparatus and system of a low-impedance reference voltage generator. The apparatus comprises: a voltage-control loop including a first transistor to provide an output voltage; and a current-control loop to sense current through the first transistor, relative to a reference current. The node having the output voltage is a low-impedance node.
摘要翻译：这里描述的是低阻参考电压发生器的装置和系统。该装置包括：电压控制回路，包括提供输出电压的第一晶体管; 以及电流控制环路，用于相对于参考电流感测通过第一晶体管的电流。具有输出电压的节点是低阻抗节点。

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