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1. 发明授权

CN105580271B 基带处理电路装置有权
公开(公告)号：CN105580271B
公开(公告)日：2018-02-09
申请号：CN201480052550.6
申请日：2014-09-19
申请人：高通股份有限公司
发明人： L-C·常 , B·格普塔 , T·D·加思曼 , I·R·查玛斯
IPC分类号： H03F3/45 , H03F1/02 , H03F3/72 , H03F1/42 , H03F1/22 , H03F3/193 , H03F1/08
CPC分类号： H03H11/0466 , H03F1/0277 , H03F1/08 , H03F1/223 , H03F3/193 , H03F3/45183 , H03F3/45475 , H03F3/45932 , H03F3/72 , H03F2200/06 , H03F2200/09 , H03F2200/165 , H03F2200/168 , H03F2200/171 , H03F2200/294 , H03F2200/336 , H03F2200/411 , H03F2200/429 , H03F2200/432 , H03F2200/534 , H03F2200/541 , H03F2200/543 , H03F2203/45352 , H03F2203/45396 , H03F2203/45506 , H03F2203/45511 , H03F2203/45512 , H03F2203/45516 , H03F2203/45521 , H03F2203/45522 , H03F2203/45526 , H03F2203/45528 , H03F2203/45594 , H03F2203/45618 , H03F2203/45702 , H03F2203/45728 , H03F2203/7215 , H03F2203/7221 , H03F2203/7236 , H03H2210/021 , H03H2250/00
摘要：用于针对无线电IC设计基带处理电路装置的技术。在一方面，公开了用于IC的基带部分中的差分到单端转换的技术以降低RF IC的管脚数量和封装尺寸。在另一方面，转换器包括可选择的窄带放大器和宽带放大器，其中可以使用具有比窄带放大器的对应的晶体管器件更小面积的晶体管器件实施宽带放大器。描述了用于旁路一个或多个元件以及用于使用R‑C滤波器网络实施转换器的低通滤波器的另外的技术。

2. 发明公开

CN105580271A 基带处理电路装置有权
公开(公告)号：CN105580271A
公开(公告)日：2016-05-11
申请号：CN201480052550.6
申请日：2014-09-19
申请人：高通股份有限公司
发明人： L-C·常 , B·格普塔 , T·D·加思曼 , I·R·查玛斯
IPC分类号： H03F3/45 , H03F1/02 , H03F3/72 , H03F1/42 , H03F1/22 , H03F3/193 , H03F1/08
CPC分类号： H03H11/0466 , H03F1/0277 , H03F1/08 , H03F1/223 , H03F3/193 , H03F3/45183 , H03F3/45475 , H03F3/45932 , H03F3/72 , H03F2200/06 , H03F2200/09 , H03F2200/165 , H03F2200/168 , H03F2200/171 , H03F2200/294 , H03F2200/336 , H03F2200/411 , H03F2200/429 , H03F2200/432 , H03F2200/534 , H03F2200/541 , H03F2200/543 , H03F2203/45352 , H03F2203/45396 , H03F2203/45506 , H03F2203/45511 , H03F2203/45512 , H03F2203/45516 , H03F2203/45521 , H03F2203/45522 , H03F2203/45526 , H03F2203/45528 , H03F2203/45594 , H03F2203/45618 , H03F2203/45702 , H03F2203/45728 , H03F2203/7215 , H03F2203/7221 , H03F2203/7236 , H03H2210/021 , H03H2250/00
摘要：用于针对无线电IC设计基带处理电路装置的技术。在一方面，公开了用于IC的基带部分中的差分到单端转换的技术以降低RF IC的管脚数量和封装尺寸。在另一方面，转换器包括可选择的窄带放大器和宽带放大器，其中可以使用具有比窄带放大器的对应的晶体管器件更小面积的晶体管器件实施宽带放大器。描述了用于旁路一个或多个元件以及用于使用R-C滤波器网络实施转换器的低通滤波器的另外的技术。

3. 发明公开

EP2056448A3 Low noise amplifier and differential amplifier 有权
标题翻译：低噪声放大器和差分放大器
公开(公告)号：EP2056448A3
公开(公告)日：2010-02-24
申请号：EP08018346.0
申请日：2008-10-20
申请人： Icom Incorporated
发明人： Yamaguchi, Kouichiro
IPC分类号： H03F1/22 , H03F1/26 , H03F1/34 , H03F3/45 , H03F3/50
CPC分类号： H03F1/26 , H03F1/14 , H03F1/22 , H03F1/347 , H03F3/19 , H03F3/45089 , H03F3/50 , H03F2200/117 , H03F2200/153 , H03F2200/294 , H03F2200/36 , H03F2200/372 , H03F2200/451 , H03F2203/45516 , H03F2203/45528 , H03F2203/45621 , H03F2203/45722 , H03F2203/45731 , H03F2203/5009 , H03F2203/5021
摘要： In a double-loop negative feedback low noise amplifier having double negative feedback paths by a feedback transformer (23) and a feedback resistor (44) added to a cascode amplifier comprising transistors (24, 27) and a resistor (30), a phase compensation circuit comprising a capacitor (42) and a resistor (45) is added between the output terminal of the double-loop negative feedback low noise amplifier and the input terminal of the cascode amplifier, i.e., the input terminal of the input transistor (24), and a phase compensation circuit comprising a capacitor (43) and a resistor (28) is added to the upper-stage transistor of the cascode amplifier, i.e., the input terminal of the upper-stage transistor (27). Those phase compensation circuits enable a low noise negative feedback amplifier which maintains a high feedback loop gain to a high frequency band, has a wider bandwidth than a conventional one, and has a high dynamic range.

4. 发明申请

US20100148868A1 Differential amplifier 有权
标题翻译：差分放大器
公开(公告)号：US20100148868A1
公开(公告)日：2010-06-17
申请号：US12591933
申请日：2009-12-04
申请人： Naohiro Matsui
发明人： Naohiro Matsui
IPC分类号： H03F3/45
CPC分类号： H03F3/45188 , H03F3/195 , H03F2200/451 , H03F2203/45318 , H03F2203/45352 , H03F2203/45516 , H03F2203/45528 , H03F2203/45638 , H03F2203/45641 , H03F2203/45644 , H03F2203/45648 , H03F2203/45698 , H03F2203/45702
摘要： In a wireless communications system, it is important to realize a limiter operation by which a differential amplifier for amplifying a local signal may stably supply an output signal having a constant amplitude. However, when a signal handled by the system has a high frequency, a gain of the differential amplifier is reduced and the limiter operation may not be performed appropriately. The differential amplifier is configured employing a double cascode connection to enhance an output impedance, an upper transistor of the double cascode connection realizes enhancement in gain and frequency characteristics based on a positive feedback signal, and a lower transistor of the double cascode connection controls an operating point and suppresses an allowable output voltage range by operating in a linear region and based on a negative feedback signal to facilitate the limiter operation.
摘要翻译：在无线通信系统中，重要的是实现用于放大本地信号的差分放大器可以稳定地提供具有恒定幅度的输出信号的限幅器操作。然而，当由系统处理的信号具有高频率时，差分放大器的增益减小，并且可能不能适当地执行限幅器操作。差分放大器被配置为采用双共源共栅连接来增强输出阻抗，双共源共栅连接的上部晶体管基于正反馈信号实现增益和频率特性的增强，而双共源共栅连接的较低晶体管控制操作并且通过在线性区域中操作并且基于负反馈信号来抑制允许的输出电压范围以便于限制器操作。

5. 发明授权

US07633344B2 Low noise amplifier and differential amplifier 有权
标题翻译：低噪声放大器和差分放大器
公开(公告)号：US07633344B2
公开(公告)日：2009-12-15
申请号：US12183857
申请日：2008-07-31
申请人： Kouichiro Yamaguchi
发明人： Kouichiro Yamaguchi
IPC分类号： H03F1/38
CPC分类号： H03F1/26 , H03F1/14 , H03F1/22 , H03F1/347 , H03F3/19 , H03F3/45089 , H03F3/50 , H03F2200/117 , H03F2200/153 , H03F2200/294 , H03F2200/36 , H03F2200/372 , H03F2200/451 , H03F2203/45516 , H03F2203/45528 , H03F2203/45621 , H03F2203/45722 , H03F2203/45731 , H03F2203/5009 , H03F2203/5021
摘要： In a double-loop negative feedback low noise amplifier having double negative feedback paths by a feedback transformer and a feedback resistor added to a cascode amplifier comprising transistors and a resistor, a phase compensation circuit comprising a capacitor and a resistor is added between the output terminal of the double-loop negative feedback low noise amplifier and the input terminal of the cascode amplifier, i.e., the input terminal of the input transistor, and a phase compensation circuit comprising a capacitor and a resistor is added to the upper-stage transistor of the cascode amplifier, i.e., the input terminal of the upper-stage transistor. Those phase compensation circuits enable a low noise negative feedback amplifier which maintains a high feedback loop gain to a high frequency band, has a wider bandwidth than a conventional one, and has a high dynamic range.
摘要翻译：在具有反馈变压器的双负反馈路径的双回路负反馈低噪声放大器和加到包括晶体管和电阻器的共源共栅放大器的反馈电阻器中，包括电容器和电阻器的相位补偿电路被添加在输出端子的双回路负反馈低噪声放大器和共源共栅放大器的输入端，即输入晶体管的输入端，以及包括电容器和电阻的相位补偿电路被添加到级联放大器，即上级晶体管的输入端。这些相位补偿电路使得能够将高反馈环路增益保持在高频带的低噪声负反馈放大器具有比常规带宽更宽的带宽，并且具有高动态范围。

6. 发明授权

US09509253B2 Bandwidth improvement for amplifiers 有权
标题翻译：放大器带宽改善
公开(公告)号：US09509253B2
公开(公告)日：2016-11-29
申请号：US14179610
申请日：2014-02-13
申请人： FUJITSU LIMITED
发明人： Nikola Nedovic
IPC分类号： H03F1/34 , H03F1/08 , H03F1/42 , H03F3/08 , H03F3/195 , H03F3/30 , H03F3/45
CPC分类号： H03F1/086 , H03F1/347 , H03F1/42 , H03F3/087 , H03F3/195 , H03F3/3022 , H03F3/45475 , H03F2200/117 , H03F2200/216 , H03F2200/36 , H03F2203/45516
摘要： A circuit may include an amplifying circuit and a t-coil inductor. The amplifying circuit may include an input node, an output node, an amplifier, and a feedback loop. The feedback loop may be coupled between the input node and the output node. The amplifying circuit may be configured to receive a current signal on the input node and to output a voltage signal based on the current signal on the output node. The t-coil inductor may include a first portion and a second portion. A first node of the first portion may be coupled to the input node of the amplifying circuit and the second portion may be included in the feedback loop.
摘要翻译：电路可以包括放大电路和t线圈电感器。放大电路可以包括输入节点，输出节点，放大器和反馈回路。反馈回路可以耦合在输入节点和输出节点之间。放大电路可以被配置为在输入节点上接收电流信号，并且基于输出节点上的当前信号来输出电压信号。该t型线圈电感器可以包括第一部分和第二部分。第一部分的第一节点可以耦合到放大电路的输入节点，并且第二部分可以包括在反馈回路中。

7. 发明申请

US20120188009A1 APPARATUS AND METHOD FOR AMPLIFICATION WITH HIGH FRONT-END GAIN IN THE PRESENCE OF LARGE DC OFFSETS 有权
标题翻译：在大直流偏差存在下具有高前端增益放大的装置和方法
公开(公告)号：US20120188009A1
公开(公告)日：2012-07-26
申请号：US13013666
申请日：2011-01-25
申请人： Alasdair Gordon Alexander , David James Plourde , Matthew Nathan Duff
发明人： Alasdair Gordon Alexander , David James Plourde , Matthew Nathan Duff
IPC分类号： H03F3/45
CPC分类号： H03F3/45977 , H03F3/45475 , H03F3/45973 , H03F2200/261 , H03F2200/375 , H03F2200/513 , H03F2200/78 , H03F2203/45511 , H03F2203/45512 , H03F2203/45516 , H03F2203/45521 , H03F2203/45526 , H03F2203/45528 , H03F2203/45536
摘要： Apparatus and methods reduce the likelihood of amplifier saturation due to propagated DC offsets, and reduce the recover from saturated stated when such saturation occurs. Advantageously, these attributes are beneficial for monitoring of bioelectric signals. A circuit uses an instrumentation amplifier connected as a high pass filter to attenuate large DC offsets and amplify small signals. The circuit can include an instrumentation amplifier electrically coupled with a first feedback circuit including at least one resistor and a second feedback circuit including an op-amp. The feedback circuit can also include a low-pass filter. The op-amp in the second feedback circuit can be configured as a non-inverting amplifier, an inverting amplifier, and/or an integrator circuit. Alternatively, the circuit can include an instrumentation amplifier with one feedback circuit including at least one resistor, and a coupling capacitor electrically coupled with a reference voltage.
摘要翻译：装置和方法降低了由于传播的DC偏移引起的放大器饱和的可能性，并且当发生这种饱和时，减少了从饱和的恢复。有利的是，这些属性对生物电信号的监测是有益的。电路使用连接作为高通滤波器的仪表放大器来衰减大直流偏移并放大小信号。电路可以包括与包括至少一个电阻器的第一反馈电路电耦合的仪表放大器和包括运算放大器的第二反馈电路。反馈电路还可以包括低通滤波器。第二反馈电路中的运算放大器可以被配置为非反相放大器，反相放大器和/或积分器电路。或者，电路可以包括具有一个反馈电路的仪表放大器，该反馈电路包括至少一个电阻器，以及与参考电压电耦合的耦合电容器。

8. 发明申请

US20130281043A1 Low Noise Amplifier 有权
标题翻译：低噪声放大器
公开(公告)号：US20130281043A1
公开(公告)日：2013-10-24
申请号：US13992804
申请日：2011-12-09
申请人： Fenghao Mu
发明人： Fenghao Mu
IPC分类号： H03F3/193
CPC分类号： H03F3/193 , H03F1/223 , H03F1/347 , H03F3/45179 , H03F2200/06 , H03F2200/09 , H03F2200/294 , H03F2200/541 , H03F2203/45386 , H03F2203/45394 , H03F2203/45516 , H03F2203/45522 , H03F2203/45528 , H03F2203/45544 , H03F2203/45554 , H03F2203/45591 , H03F2203/45621 , H03F2203/45631 , H03F2203/45638 , H03F2203/45662 , H03F2203/45731
摘要： A low noise amplifier comprises at least one amplifying transistor (Ts1; Ts2) configured in a common source configuration to receive an input signal (RFin) at a gate terminal and provide an amplified signal at a drain terminal and at least one feedback path arranged to couple a part of the amplified signal back to the gate terminal and comprising a feedback impedance. The low noise amplifier further comprises a self-coupled step-up transformer having at least one primary winding (Lp) connected to a supply voltage (Vdd) and the drain terminal of the at least one amplifying transistor and at least one self-coupled secondary inductor winding (Lf1; Lf2) arranged in the feedback path. The low noise amplifier provides a better suppression for out-band interference and at the same time it has a wider input match bandwidth, decent conversion gain and decent noise figure without increasing power consumption.
摘要翻译：低噪声放大器包括至少一个配置在公共源配置中的放大晶体管（Ts1; Ts2），用于在栅极端接收输入信号（RFin），并在漏极端提供放大信号，并将至少一个反馈通路布置成将放大的信号的一部分耦合回到栅极端并包括反馈阻抗。低噪声放大器还包括自耦合升压变压器，其具有连接到电源电压（Vdd）的至少一个初级绕组（Lp）和至少一个放大晶体管的漏极端子以及至少一个自耦合次级电感绕组（Lf1; Lf2）布置在反馈路径中。低噪声放大器为带外干扰提供更好的抑制，同时具有更宽的输入匹配带宽，良好的转换增益和体面的噪声系数，而不增加功耗。

9. 发明授权

US08390374B2 Apparatus and method for amplification with high front-end gain in the presence of large DC offsets 有权
标题翻译：在存在大直流偏移的情况下具有高前端增益的放大装置和方法
公开(公告)号：US08390374B2
公开(公告)日：2013-03-05
申请号：US13013666
申请日：2011-01-25
申请人： Alasdair Gordon Alexander , David James Plourde , Matthew Nathan Duff
发明人： Alasdair Gordon Alexander , David James Plourde , Matthew Nathan Duff
IPC分类号： H03F3/45
CPC分类号： H03F3/45977 , H03F3/45475 , H03F3/45973 , H03F2200/261 , H03F2200/375 , H03F2200/513 , H03F2200/78 , H03F2203/45511 , H03F2203/45512 , H03F2203/45516 , H03F2203/45521 , H03F2203/45526 , H03F2203/45528 , H03F2203/45536
摘要： Apparatus and methods reduce the likelihood of amplifier saturation due to propagated DC offsets, and reduce the recover from saturated stated when such saturation occurs. Advantageously, these attributes are beneficial for monitoring of bioelectric signals. A circuit uses an instrumentation amplifier connected as a high pass filter to attenuate large DC offsets and amplify small signals. The circuit can include an instrumentation amplifier electrically coupled with a first feedback circuit including at least one resistor and a second feedback circuit including an op-amp. The feedback circuit can also include a low-pass filter. The op-amp in the second feedback circuit can be configured as a non-inverting amplifier, an inverting amplifier, and/or an integrator circuit. Alternatively, the circuit can include an instrumentation amplifier with one feedback circuit including at least one resistor, and a coupling capacitor electrically coupled with a reference voltage.
摘要翻译：装置和方法降低了由于传播的DC偏移引起的放大器饱和的可能性，并且当发生这种饱和时，减少了从饱和的恢复。有利的是，这些属性对生物电信号的监测是有益的。电路使用连接作为高通滤波器的仪表放大器来衰减大直流偏移并放大小信号。电路可以包括与包括至少一个电阻器的第一反馈电路电耦合的仪表放大器和包括运算放大器的第二反馈电路。反馈电路还可以包括低通滤波器。第二反馈电路中的运算放大器可以被配置为非反相放大器，反相放大器和/或积分器电路。或者，电路可以包括具有一个反馈电路的仪表放大器，该反馈电路包括至少一个电阻器，以及与参考电压电耦合的耦合电容器。

10. 发明申请

US20090108937A1 LOW NOISE AMPLIFIER AND DIFFERENTIAL AMPLIFIER 有权
标题翻译：低噪声放大器和差分放大器
公开(公告)号：US20090108937A1
公开(公告)日：2009-04-30
申请号：US12183857
申请日：2008-07-31
申请人： Kouichiro Yamaguchi
发明人： Kouichiro Yamaguchi
IPC分类号： H03F3/45
CPC分类号： H03F1/26 , H03F1/14 , H03F1/22 , H03F1/347 , H03F3/19 , H03F3/45089 , H03F3/50 , H03F2200/117 , H03F2200/153 , H03F2200/294 , H03F2200/36 , H03F2200/372 , H03F2200/451 , H03F2203/45516 , H03F2203/45528 , H03F2203/45621 , H03F2203/45722 , H03F2203/45731 , H03F2203/5009 , H03F2203/5021
摘要： In a double-loop negative feedback low noise amplifier having double negative feedback paths by a feedback transformer and a feedback resistor added to a cascode amplifier comprising transistors and a resistor, a phase compensation circuit comprising a capacitor and a resistor is added between the output terminal of the double-loop negative feedback low noise amplifier and the input terminal of the cascode amplifier, i.e., the input terminal of the input transistor, and a phase compensation circuit comprising a capacitor and a resistor is added to the upper-stage transistor of the cascode amplifier, i.e., the input terminal of the upper-stage transistor. Those phase compensation circuits enable a low noise negative feedback amplifier which maintains a high feedback loop gain to a high frequency band, has a wider bandwidth than a conventional one, and has a high dynamic range.
摘要翻译：在具有反馈变压器的双负反馈路径的双回路负反馈低噪声放大器和加到包括晶体管和电阻器的共源共栅放大器的反馈电阻器中，包括电容器和电阻器的相位补偿电路被添加在输出端子的双回路负反馈低噪声放大器和共源共栅放大器的输入端，即输入晶体管的输入端，以及包括电容器和电阻的相位补偿电路被添加到级联放大器，即上级晶体管的输入端。这些相位补偿电路使得能够将高反馈环路增益保持在高频带的低噪声负反馈放大器具有比常规带宽更宽的带宽，并且具有高动态范围。

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