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1. 发明授权

US09391565B2 Amplifier phase distortion correction based on amplitude distortion measurement 有权
标题翻译：基于幅度失真测量的放大器相位失真校正
公开(公告)号：US09391565B2
公开(公告)日：2016-07-12
申请号：US14216376
申请日：2014-03-17
申请人： RF Micro Devices (Cayman Islands), Ltd.
发明人： Baker Scott , Ying Shi , George Maxim , Malcolm Smith , Daniel Ho
IPC分类号： H03F1/32 , H03F1/26 , H03F3/195 , H03F3/19 , H03F3/213 , H01F27/28 , H01F27/38 , H03H7/09 , H03H7/01 , H03F3/21
CPC分类号： H03F1/3241 , H01F27/28 , H01F27/385 , H03F1/22 , H03F1/32 , H03F1/34 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/213 , H03H7/09 , H03H7/1775
摘要： This application discloses correction circuitry for correcting a phase distortion in an amplification circuit by measuring an amplitude distortion and controlling a phase shifting component based upon the measured amplitude distortion. In one embodiment, a first amplitude distortion sensor is coupled to a first node of an amplification circuit, and a first phase shifter is coupled to a second node of the amplification circuit. Additionally, a first control circuit is coupled to the first amplitude sensor and to the first phase shifter. The first control circuit is configured to correlate a first amplitude distortion measured by the first amplitude distortion sensor to a first inferred phase distortion, and to generate a first phase correction signal based upon the first inferred phase distortion, and is configured to send the first phase correction signal towards the first phase shifter.
摘要翻译：本申请公开了一种用于通过测量幅度失真来校正放大电路中的相位失真并基于测量的幅度失真来控制相移分量的校正电路。在一个实施例中，第一幅度失真传感器耦合到放大电路的第一节点，并且第一移相器耦合到放大电路的第二节点。此外，第一控制电路耦合到第一振幅传感器和第一移相器。第一控制电路被配置为将由第一幅度失真传感器测量的第一幅度失真与第一推断的相位失真相关联，并且基于第一推断的相位失真产生第一相位校正信号，并且被配置为发送第一相位校正信号朝向第一移相器。

2. 发明申请

US20140266457A1 GAIN AND PHASE CALIBRATION FOR CLOSED LOOP FEEDBACK LINEARIZED AMPLIFIERS 有权
标题翻译：闭环反馈线性放大器的增益和相位校准
公开(公告)号：US20140266457A1
公开(公告)日：2014-09-18
申请号：US14215815
申请日：2014-03-17
申请人： RF Micro Devices (Cayman Islands), Ltd.
发明人： Baker Scott , George Maxim , Dirk Robert Walter Leipold
IPC分类号： H03F3/195 , H03F1/32
CPC分类号： H03F1/3241 , H01F27/28 , H01F27/385 , H03F1/22 , H03F1/32 , H03F1/34 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/213 , H03H7/09 , H03H7/1775
摘要： Embodiments of a radio frequency (RF) amplification device having an RF amplification circuit and an amplifier control circuit operably associated with the RF amplification circuit are disclosed. The RF amplification circuit is configured to amplify an RF signal in accordance with a transfer function. The amplifier control circuit includes a closed-loop linearization circuit and a calibration circuit. The closed-loop linearization circuit is configured to be activated so that the transfer function defines a closed-loop response and inactive so that the transfer function defines an open-loop response. For example, the closed-loop linearization circuit may become inactive at small-signal power levels. Accordingly, the amplifier control circuit also includes a calibration circuit configured to reduce a difference between the open-loop response and the closed-loop response of the transfer function. In this manner, the performance of the RF amplification device is maintained while the closed-loop linearization circuit is inactive.
摘要翻译：公开了具有RF放大电路和可操作地与RF放大电路相关联的放大器控制电路的射频（RF）放大装置的实施例。 RF放大电路被配置为根据传递函数放大RF信号。放大器控制电路包括闭环线性化电路和校准电路。闭环线性化电路被配置为被激活，使得传递函数定义闭环响应并且不起作用，使得传递函数定义开环响应。例如，闭环线性化电路可能在小信号功率电平下变得无效。因此，放大器控制电路还包括被配置为减小开环响应和传递函数的闭环响应之间的差异的校准电路。以这种方式，当闭环线性化电路无效时，维持RF放大装置的性能。

3. 发明申请

US20140266452A1 RF POWER AMPLIFIER WITH TOTAL RADIATED POWER STABILIZATION 有权
标题翻译：具有总放大功率稳定的RF功率放大器
公开(公告)号：US20140266452A1
公开(公告)日：2014-09-18
申请号：US14218953
申请日：2014-03-18
申请人： RF Micro Devices (Cayman Islands), Ltd.
发明人： Baker Scott , Dirk Robert Walter Leipold , George Maxim
IPC分类号： H03F3/195 , H03F3/21
CPC分类号： H03F1/3241 , H01F27/28 , H01F27/385 , H03F1/22 , H03F1/32 , H03F1/34 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/213 , H03H7/09 , H03H7/1775
摘要： A radio frequency (RF) amplification circuit and a closed-loop amplitude linearization circuit are disclosed. The RF amplification circuit amplifies an RF signal to generate an amplified RF signal. The RF amplification circuit and the closed-loop amplitude linearization circuit form a fast control loop and a slow control loop. The slow control loop estimates a total radiated power (TRP) from the RF amplification circuit to create a TRP estimate using a representation of the amplified RF signal, and controls a fast loop gain of the fast control loop based on the TRP estimate. The fast control loop applies a gain adjustment to the RF amplification circuit based on the fast loop gain and a difference between a target reference amplitude and a measured feedback amplitude. The gain adjustment controls amplitude distortion in the RF amplification circuit. The fast loop gain controls TRP-drift in the RF amplification circuit.
摘要翻译：公开了射频（RF）放大电路和闭环幅度线性化电路。 RF放大电路放大RF信号以产生放大的RF信号。 RF放大电路和闭环幅度线性化电路形成快速控制回路和慢速控制回路。慢控制环路估计来自RF放大电路的总辐射功率（TRP），以使用放大的RF信号的表示来创建TRP估计，并且基于TRP估计来控制快速控制环路的快速环路增益。快速控制环路基于快速环路增益和目标参考幅度与测量的反馈幅度之间的差异，向RF放大电路施加增益调整。增益调整控制RF放大电路中的幅度失真。快速环路增益控制RF放大电路中的TRP漂移。

4. 发明授权

US08731490B2 Methods and circuits for detuning a filter and matching network at the output of a power amplifier 有权
标题翻译：在功率放大器的输出端使滤波器和匹配网络失谐的方法和电路
公开(公告)号：US08731490B2
公开(公告)日：2014-05-20
申请号：US13633374
申请日：2012-10-02
申请人： RF Micro Devices (Cayman Islands), Ltd.
发明人： Malcolm Smith , Ying Shi
IPC分类号： H04B1/04
CPC分类号： H04B1/0475 , H03F1/56 , H04B1/0483
摘要： In transmitter modules or power amplifier (PA) modules there is at least a possible path for a second and even a third harmonic of a low band to crossover unfiltered into the high band path and reach the antenna and hence cross band isolation is necessary. Forward isolation is necessary in order to limit the input crossing over the PAs into the antenna port. According to the methods and the circuits such cross band isolation and forward isolation is improved by detuning the filter and matching network at the output of the PA. The circuit comprises a trap at the harmonic frequencies of the low band thereby at least reducing the impacts of the cross band and forward isolation.
摘要翻译：在发射机模块或功率放大器（PA）模块中，至少有一个可能的路径用于低频带的第二次谐波和偶次三次谐波，以将其过滤到高频带路径中并且到达天线，因此需要进行交叉带隔离。正向隔离是必要的，以便将通过PA的输入限制到天线端口。根据方法和电路，通过在PA输出端使滤波器和匹配网络失谐来改善交叉带隔离和正向隔离。该电路包括在低频段的谐波频率处的陷波器，从而至少减少了交叉频带的影响和向前隔离。

5. 发明授权

US09871490B2 Multi-band/multi-mode power amplifier with signal path hardware sharing 有权
公开(公告)号：US09871490B2
公开(公告)日：2018-01-16
申请号：US15130328
申请日：2016-04-15
申请人： RF Micro Devices (Cayman Islands), Ltd.
发明人： Baker Scott , George Maxim
IPC分类号： H03F3/68 , H03F1/26 , H03F1/56 , H03F3/195 , H03F3/24 , H03F3/21 , H03F1/07 , H03F1/02 , H03F1/30 , H03F3/60
CPC分类号： H03F1/26 , H03F1/0288 , H03F1/07 , H03F1/301 , H03F1/56 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/602 , H03F3/68 , H03F2200/111 , H03F2200/222 , H03F2200/294 , H03F2200/387 , H03F2200/405 , H03F2200/429 , H03F2203/21131 , H03F2203/21139 , H03F2203/7209 , H03F2203/7215 , H03F2203/7221 , H03F2203/7236
摘要： Existing multi-band/multi-mode (MB/MM) power amplifiers (PAs) use separate signal paths for the different covered frequency bands. This results in a large degree of hardware duplication and to a large die size and cost. Solutions that achieve hardware sharing between the different signal paths of MB/MM PAs are shown. Such sharing includes bias circuit and bypass capacitors sharing, as well as sharing front-end stages and the output stage of the PA. Signal multiplexing may be realized in the transmitter or at the PA front-end while the signal de-multiplexing can be realized either in the PA output stage or at the front-end of the output stage. Such circuits can be applied with saturated and linear MB/MM PAs with adjacent or non-adjacent bands.

6. 发明授权

US09748905B2 RF replicator for accurate modulated amplitude and phase measurement 有权
公开(公告)号：US09748905B2
公开(公告)日：2017-08-29
申请号：US14216560
申请日：2014-03-17
申请人： RF Micro Devices (Cayman Islands), Ltd.
发明人： Baker Scott , Dirk Robert Walter Leipold , George Maxim
IPC分类号： H03F1/32 , H03F3/195 , H03F3/21 , H03F3/19 , H03F3/213 , H01F27/28 , H01F27/38 , H03H7/09 , H03H7/01 , H03F1/34 , H03F1/22
CPC分类号： H03F1/3241 , H01F27/28 , H01F27/385 , H03F1/22 , H03F1/32 , H03F1/34 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/213 , H03H7/09 , H03H7/1775
摘要： The disclosure provides a communication circuit including an amplification circuit, a replicator circuit, and a correction circuit. Specifically, the amplification circuit generates an amplified signal. The replicator circuit emulates the amplification circuit and generates a replicated signal that approximates the amplified signal. The replicated signal is used by the correction circuit to generate control signals for controlling the amplification circuit.

7. 发明授权

US09294042B2 Power amplifier system with supply modulation mitigation circuitry and methods 有权
标题翻译：功率放大器系统，具有电源调制缓解电路和方法
公开(公告)号：US09294042B2
公开(公告)日：2016-03-22
申请号：US14216051
申请日：2014-03-17
申请人： RF Micro Devices (Cayman Islands), Ltd.
发明人： Baker Scott , George Maxim
IPC分类号： H03F1/30 , H03F1/02 , H03F3/21 , H03F3/45 , H03F1/26
CPC分类号： H03F1/30 , H03F1/02 , H03F1/0227 , H03F1/26 , H03F1/305 , H03F3/21 , H03F3/45273
摘要： A power amplifier system with supply modulation mitigation circuitry and methods is disclosed. The power amplifier system includes a regulator having an unregulated input and a regulated output along with a power amplifier having a supply input for receiving a supply current from the regulated output and having a signal input and a signal output that comprise a main signal path. The supply modulation mitigation circuitry is adapted to sense a supply modulation signal output from the regulator, generate a cancellation signal that is a scaled inverse of the supply modulation signal, and inject the cancellation signal into a node within the power amplifier system to sum the supply modulation signal and cancellation signal together to reduce the supply modulation signal from within the main signal path.
摘要翻译：公开了具有电源调制缓解电路和方法的功率放大器系统。功率放大器系统包括具有未调节输入和调节输出的调节器以及具有用于从调节输出接收电源电流并具有包括主信号路径的信号输入和信号输出的电源输入的功率放大器。电源调制缓解电路适于检测从调节器输出的电源调制信号，产生作为电源调制信号的缩放反相的消除信号，并将该消除信号注入到功率放大器系统内的一个节点中以将电源调制信号和消除信号在一起以减少来自主信号路径内的供应调制信号。

8. 发明申请

US20140266458A1 RF REPLICATOR FOR ACCURATE MODULATED AMPLITUDE AND PHASE MEASUREMENT 有权
标题翻译：射频替代器用于精确调制幅度和相位测量
公开(公告)号：US20140266458A1
公开(公告)日：2014-09-18
申请号：US14216560
申请日：2014-03-17
申请人： RF Micro Devices (Cayman Islands), Ltd.
发明人： Baker Scott , Dirk Robert Walter Leipold , George Maxim
IPC分类号： H03F3/19
CPC分类号： H03F1/3241 , H01F27/28 , H01F27/385 , H03F1/22 , H03F1/32 , H03F1/34 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/213 , H03H7/09 , H03H7/1775
摘要： The disclosure provides a communication circuit including an amplification circuit, a replicator circuit, and a correction circuit. Specifically, the amplification circuit generates an amplified signal. The replicator circuit emulates the amplification circuit and generates a replicated signal that approximates the amplified signal. The replicated signal is used by the correction circuit to generate control signals for controlling the amplification circuit.
摘要翻译：本公开提供一种包括放大电路，复制电路和校正电路的通信电路。具体地，放大电路产生放大信号。复制器电路模拟放大电路并产生近似放大信号的复制信号。复制信号由校正电路使用以产生用于控制放大电路的控制信号。

9. 发明申请

US20140266451A1 POWER AMPLIFIER WITH WIDE DYNAMIC RANGE AM FEEDBACK LINEARIZATION SCHEME 有权
标题翻译：具有宽动态范围的功率放大器反馈线性化方案
公开(公告)号：US20140266451A1
公开(公告)日：2014-09-18
申请号：US14217199
申请日：2014-03-17
申请人： RF Micro Devices (Cayman Islands), Ltd.
发明人： Baker Scott , George Maxim
IPC分类号： H03F3/195 , H03F3/21
CPC分类号： H03F1/3241 , H01F27/28 , H01F27/385 , H03F1/22 , H03F1/32 , H03F1/34 , H03F3/19 , H03F3/195 , H03F3/211 , H03F3/213 , H03H7/09 , H03H7/1775
摘要： Circuitry, which includes a package interface, a radio frequency (RF) amplification circuit, and a closed-loop gain linearization circuit. The package interface receives an RF signal and provides an amplified RF signal. The RF amplification circuit amplifies the RF signal in accordance with a gain of the RF amplification circuit so as to generate the amplified RF signal. In one embodiment, the closed-loop gain linearization circuit is configured to endogenously establish a target gain magnitude using the RF signal and linearize the gain of the RF amplification circuit in accordance with the target gain magnitude. By endogenously establishing the target gain magnitude using the RF signal, the closed-loop gain linearization circuit can provide linearity with greater independence from external control circuitry.
摘要翻译：电路包括封装接口，射频（RF）放大电路和闭环增益线性化电路。封装接口接收RF信号并提供放大的RF信号。 RF放大电路根据RF放大电路的增益放大RF信号，以产生放大的RF信号。在一个实施例中，闭环增益线性化电路被配置为使用RF信号内生地建立目标增益幅度，并且根据目标增益幅度线性化RF放大电路的增益。通过使用RF信号内生地建立目标增益幅度，闭环增益线性化电路可以提供与外部控制电路更大独立性的线性。

10. 发明申请

US20140030990A1 Methods and Circuits for Detuning a Filter and Matching Network at the Output of a Power Amplifier 有权
标题翻译：用于在功率放大器输出端去除滤波器和匹配网络的方法和电路
公开(公告)号：US20140030990A1
公开(公告)日：2014-01-30
申请号：US13633374
申请日：2012-10-02
申请人： RF Micro Devices (Cayman Islands), Ltd.
发明人： Malcolm Smith , Ying Shi
IPC分类号： H04B1/10 , H04B1/14 , H04B1/02
CPC分类号： H04B1/0475 , H03F1/56 , H04B1/0483
摘要： In transmitter modules or power amplifier (PA) modules there is at least a possible path for a second and even a third harmonic of a low band to crossover unfiltered into the high band path and reach the antenna and hence cross band isolation is necessary. Forward isolation is necessary in order to limit the input crossing over the PAs into the antenna port. According to the methods and the circuits such cross band isolation and forward isolation is improved by detuning the filter and matching network at the output of the PA. The circuit comprises a trap at the harmonic frequencies of the low band thereby at least reducing the impacts of the cross band and forward isolation.
摘要翻译：在发射机模块或功率放大器（PA）模块中，至少有一个可能的路径用于低频带的第二次谐波和偶次三次谐波，以将其过滤到高频带路径中并且到达天线，因此需要进行交叉带隔离。正向隔离是必要的，以便将通过PA的输入限制到天线端口。根据方法和电路，通过在PA输出端使滤波器和匹配网络失谐来改善交叉带隔离和正向隔离。该电路包括在低频段的谐波频率处的陷波器，从而至少减少了交叉频带的影响和向前隔离。

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