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    ASYMMETRICAL PARALLEL-COMBINING (APC) TECHNIQUE FOR RF POWER AMPLIFIER
    1.
    发明申请
    ASYMMETRICAL PARALLEL-COMBINING (APC) TECHNIQUE FOR RF POWER AMPLIFIER 审中-公开

    公开(公告)号：US20190058445A1

    公开(公告)日：2019-02-21

    申请号：US16052726

    申请日：2018-08-02

    Applicant: DSP Group Ltd.

    Inventor： Sergey Anderson ,  Nadav Snir

    IPC: H03F1/02 ,  H03F3/195 ,  H03F3/60

    Abstract: An integrated circuit RF power amplifier that includes a substrate; a low power (LP) amplifier; a high-power (HP) amplifier; and an asymmetrical parallel-combining transformer. The substrate is configured to supports the LP amplifier, the HP amplifier and the asymmetrical parallel-combining transformer. The LP amplifier is configured to amplify a LP RF input signal to provide a LP amplified signal. The HP amplifier is configured to amplify a HP RF input signal to provide a HP amplified signal. The HP amplified signal has maximal intensity that exceeds a maximal intensity of the LP amplified signal. The wherein the asymmetrical parallel-combining transformer may include (a) a HP primary winding that is constructed and arranged to receive the HP amplified signal; (b) LP primary windings that are constructed and arranged to receive the LP amplified signal; and (c) secondary windings that are magnetically coupled to the HP primary winding and to the LP primary windings, and are constructed and arranged to output a output signal.

    Efficient smart wideband linear hybrid CMOS RF power amplifier
    2.
    发明授权
    Efficient smart wideband linear hybrid CMOS RF power amplifier 有权

    公开(公告)号：US09742360B2

    公开(公告)日：2017-08-22

    申请号：US15075730

    申请日：2016-03-21

    Applicant: DSP Group Ltd.

    Inventor： Sergey Anderson ,  Udi Suissa

    IPC: H03F1/32 ,  H03F3/193 ,  H04L27/26 ,  H03F3/24 ,  H03F3/45

    CPC classification number: H03F1/3294 ,  H03F3/193 ,  H03F3/245 ,  H03F3/45188 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2201/3215 ,  H04L27/2623

    Abstract: A novel and useful linear, efficient, smart wideband CMOS hybrid power amplifier that combined an analog linear amplification path and a digital power amplification (DPA) path. PA path control logic analyzes the input I and Q signals and determines which amplification paths to steer the input I and Q signals to. The analog linear amplification path comprises digital to analog converters for both I and Q paths and one or more analog linear power amplifiers. The digital power amplification path comprises I and Q up-sampling circuits and I and Q RF DAC circuits (e.g., digital PA circuits). In operation, the PA path control logic compares the I and Q signals to thresholds (which may or may not be different) and based on the comparisons, selects one or more paths for the input I and Q signals. Whether the signals from the analog and digital amplification paths are to be combined or selected (i.e. switched), the PA path control circuit is operative to generate select (switch) control signals which are applied to summer/selector elements which generate the output of the hybrid PA.

    Efficient Smart Wideband Linear Hybrid CMOS RF Power Amplifier
    3.
    发明申请
    Efficient Smart Wideband Linear Hybrid CMOS RF Power Amplifier 有权
    高效智能宽带线性混合CMOS射频功率放大器

    公开(公告)号：US20160276986A1

    公开(公告)日：2016-09-22

    申请号：US15075730

    申请日：2016-03-21

    Applicant: DSP Group Ltd.

    Inventor： Sergey Anderson ,  Udi Suissa

    IPC: H03F1/32 ,  H03F3/21 ,  H04L27/26 ,  H03F3/193

    CPC classification number: H03F1/3294 ,  H03F3/193 ,  H03F3/245 ,  H03F3/45188 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2201/3215 ,  H04L27/2623

    Abstract: A novel and useful linear, efficient, smart wideband CMOS hybrid power amplifier that combined an analog linear amplification path and a digital power amplification (DPA) path. PA path control logic analyzes the input I and Q signals and determines which amplification paths to steer the input I and Q signals to. The analog linear amplification path comprises digital to analog converters for both I and Q paths and one or more analog linear power amplifiers. The digital power amplification path comprises I and Q up-sampling circuits and I and Q RF DAC circuits (e.g., digital PA circuits). In operation, the PA path control logic compares the I and Q signals to thresholds (which may or may not be different) and based on the comparisons, selects one or more paths for the input I and Q signals. Whether the signals from the analog and digital amplification paths are to be combined or selected (i.e. switched), the PA path control circuit is operative to generate select (switch) control signals which are applied to summer/selector elements which generate the output of the hybrid PA.

    Abstract translation: 一种新颖有用的线性，高效智能宽带CMOS混合功率放大器，其组合了模拟线性放大路径和数字功率放大（DPA）路径。 PA路径控制逻辑分析输入I和Q信号，并确定哪些放大路径将输入I和Q信号转向。 模拟线性放大路径包括用于I和Q路径的数模转换器和一个或多个模拟线性功率放大器。 数字功率放大路径包括I和Q上采样电路以及I和Q RF DAC电路（例如，数字PA电路）。 在操作中，PA路径控制逻辑将I和Q信号与阈值进行比较（其可能或可能不同），并且基于比较，为输入I和Q信号选择一个或多个路径。 来自模拟和数字放大路径的信号是否被组合或选择（即切换），PA路径控制电路可操作地产生选择（开关）控制信号，其被施加到加法器/选择器元件，其产生 混合PA。

    Automatic frequency shift compensation (AFSC) in resonant tank circuits over the process variation
    6.
    发明授权
    Automatic frequency shift compensation (AFSC) in resonant tank circuits over the process variation 有权

    公开(公告)号：US11451194B2

    公开(公告)日：2022-09-20

    申请号：US17103880

    申请日：2020-11-24

    Applicant: DSP Group Ltd.

    Inventor： Sergey Anderson

    IPC: H03F3/45 ,  H03F1/02 ,  H03F3/193 ,  H03F1/56

    Abstract: A low noise amplifier that may include a first input port, a second input port, a first capacitor, a second capacitor, a first variable capacitor, a second variable capacitor, an inductor, a bias circuit, a tuning circuit, a first output circuit having a first output, a second output circuit having a second output; wherein the first input port is electrically coupled to a first end of the second variable capacitor, to a first end of the first capacitor, to an input of the first output circuit, and to a first port of the inductor; wherein the second input port is electrically coupled to a second end of the first variable capacitor, to a second end of the second capacitor, to an input of the second output circuit, and to a second port of the inductor; wherein a first port of the first varactor is electrically coupled to a second end of the first capacitor; wherein a second port of the second varactor is electrically coupled to a first end of the second capacitor; wherein the bias circuit is configured to supply a bias voltage to a third port of the inductor; and wherein the tuning circuit is configured to control a capacitance of the first varactor and a capacitance of the variable capacitor.

    RF transformer based TX/RX integrated RF switch
    9.
    发明授权
    RF transformer based TX/RX integrated RF switch 有权
    基于RF变压器的TX / RX集成RF开关

    公开(公告)号：US09484977B2

    公开(公告)日：2016-11-01

    申请号：US14277427

    申请日：2014-05-14

    Applicant: DSP Group, Ltd.

    Inventor： Sergey Anderson ,  Sharon Betzalel

    IPC: H04B1/44 ,  H04B1/48

    CPC classification number: H04B1/44 ,  H04B1/48

    Abstract: The present invention is a novel and useful RF transformer based transmit/receive (TX/RX) integrated RF switch. In one embodiment of the invention, the TX/RX RF switch circuit is based on the use of an RF transformer which functions as (1) the PA output transformer during TX mode and (2) as a series inductance in an LNA matching network during receive mode. Thus, the RF transformer plays a dual function or role. Antenna diversity is achieved by having multiple antennas each having an associated antenna switch connected to the output transformer. The TX/RX switch of the invention reduces the number of switches required for antenna diversity to a minimum and minimizes RF losses in the system. The TX/RX switch is suitable for use with modern wireless communication standards such as DECT, 802.11 WLAN, Bluetooth, ZigBee, etc. The configuration of the TX/RX circuit permits the use of common, relatively low cost semiconductor fabrication techniques such as standard CMOS processes.

    Abstract translation: 本发明是一种新颖且有用的基于RF变压器的发射/接收（TX / RX）集成RF开关。 在本发明的一个实施例中，TX / RX RF开关电路基于使用RF变压器，其在TX模式期间用作（1）PA输出变压器，以及（2）作为LNA匹配网络中的串联电感 接收模式。 因此，RF变压器具有双重功能或作用。 通过将多个天线各自具有连接到输出变压器的相关联的天线开关来实现天线分集。 本发明的TX / RX开关将天线分集所需的开关数量减少到最小，并使系统中的RF损耗最小化。 TX / RX开关适用于现代无线通信标准，如DECT，802.11 WLAN，蓝牙，ZigBee等。TX / RX电路的配置允许使用常见的，相对较低成本的半导体制造技术，如标准 CMOS工艺。

    LINEAR ROW ARRAY INTEGRATED POWER COMBINER FOR RF POWER AMPLIFIERS
    10.
    发明申请
    LINEAR ROW ARRAY INTEGRATED POWER COMBINER FOR RF POWER AMPLIFIERS 有权
    用于射频功率放大器的线性阵列集成电源组合器

    公开(公告)号：US20150194942A1

    公开(公告)日：2015-07-09

    申请号：US14602330

    申请日：2015-01-22

    Applicant: DSP Group LTD.

    Inventor： Sergey Anderson ,  Alexander Mostov ,  Eli Schwartz ,  Ron Pongratz ,  Ilya Sima

    IPC: H03F3/213 ,  H03F3/21 ,  H03F1/02 ,  H03F3/195

    CPC classification number: H03F3/213 ,  B82Y10/00 ,  B82Y40/00 ,  H03F1/0216 ,  H03F3/195 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/451 ,  H03F2200/504 ,  H03F2203/21106 ,  Y02D70/00

    Abstract: A novel and useful radio frequency (RF) front end module (FEM) circuit that provides high linearity and power efficiency and meets the requirements of modern wireless communication standards such as 802.11 WLAN, 3G and 4G cellular standards, Bluetooth, ZigBee, etc. The configuration of the FEM circuit permits the use of common, relatively low cost semiconductor fabrication techniques such as standard CMOS processes. The FEM circuit includes a power amplifier made up of one or more sub-amplifiers having high and low power circuits and whose outputs are combined to yield the total desired power gain. An integrated multi-tap transformer having primary and secondary windings arranged in a novel configuration provide efficient power combining and transfer to the antenna of the power generated by the individual sub-amplifiers.

    Abstract translation: 一种新颖有用的射频（RF）前端模块（FEM）电路，提供高线性度和功率效率，并满足现代无线通信标准（如802.11 WLAN，3G和4G蜂窝标准，蓝牙，ZigBee等）的要求。 有限元电路的配置允许使用常见的，相对低成本的半导体制造技术，例如标准CMOS工艺。 FEM电路包括由具有高功率电路和低功率电路的一个或多个子放大器组成的功率放大器，并且其输出被组合以产生总的期望功率增益。 具有以新颖配置布置的初级和次级绕组的集成多抽头变压器提供了由各个子放大器产生的功率的有效功率组合和传输到天线。

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