公开(公告)号：US20150077185A1

公开(公告)日：2015-03-19

申请号：US14484377

申请日：2014-09-12

申请人： RF Micro Devices, Inc.

发明人： Miaofu Ding ,  Robert J. Baeten

IPC分类号： H03F1/30 ,  H03G3/30 ,  H03F3/21

CPC分类号： H03G3/30 ,  H03F1/302 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/447 ,  H03G3/3042

摘要： A power amplifier (PA) system with PA gain correction is disclosed. The PA system includes a PA having a bias voltage input; and electrothermal feedback circuitry coupled to the bias voltage input. The electrothermal feedback circuitry is configured to receive thermal feedback generated by the PA and maintain a substantially constant PA gain by automatically changing a bias voltage level at the bias voltage input based upon the thermal feedback.

摘要翻译： 公开了具有PA增益校正的功率放大器（PA）系统。 PA系统包括具有偏置电压输入的PA; 以及耦合到偏置电压输入的电热反馈电路。 电热反馈电路被配置为接收由PA产生的热反馈，并且通过基于热反馈自动改变偏置电压输入处的偏置电压电平来保持基本上恒定的PA增益。

公开(公告)号：US09362879B2

公开(公告)日：2016-06-07

申请号：US14484377

申请日：2014-09-12

申请人： RF Micro Devices, Inc.

发明人： Miaofu Ding ,  Robert J. Baeten

IPC分类号： H03F3/04 ,  H03G3/30 ,  H03F1/30 ,  H03F3/195 ,  H03F3/24

CPC分类号： H03G3/30 ,  H03F1/302 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/447 ,  H03G3/3042

摘要： A power amplifier (PA) system with PA gain correction is disclosed. The PA system includes a PA having a bias voltage input; and electrothermal feedback circuitry coupled to the bias voltage input. The electrothermal feedback circuitry is configured to receive thermal feedback generated by the PA and maintain a substantially constant PA gain by automatically changing a bias voltage level at the bias voltage input based upon the thermal feedback.

摘要翻译： 公开了具有PA增益校正的功率放大器（PA）系统。 PA系统包括具有偏置电压输入的PA; 以及耦合到偏置电压输入的电热反馈电路。 电热反馈电路被配置为接收由PA产生的热反馈，并且通过基于热反馈自动改变偏置电压输入处的偏置电压电平来保持基本上恒定的PA增益。

公开(公告)号：US09281850B1

公开(公告)日：2016-03-08

申请号：US14847542

申请日：2015-09-08

申请人： RF Micro Devices, Inc.

发明人： Marcelo J. Franco ,  David C. Dening ,  Robert J. Baeten

IPC分类号： H04B1/26 ,  H04B1/04 ,  H03D7/16

CPC分类号： H04B1/0458 ,  H03D7/161 ,  H03D9/06 ,  H04B1/18

摘要： The present invention relates to an adaptable RF impedance translation circuit that includes a first group of inductive elements cascaded in series between an input and an output without any series switching elements, a second group of inductive elements cascaded in series, and a group of switching elements that are capable of electrically coupling the first group of inductive elements to the second group of inductive elements. Further, the adaptable RF impedance translation circuit includes at least one variable shunt capacitance circuit electrically coupled between a common reference and at least one connection node in the adaptable RF impedance translation circuit, which includes control circuitry to select either an OFF state or an ON state associated with each of the switching elements and to select a capacitance associated with each variable shunt capacitance circuit to control impedance translation characteristics of the adaptable RF impedance translation circuit.

公开(公告)号：US09160276B1

公开(公告)日：2015-10-13

申请号：US13875797

申请日：2013-05-02

申请人： RF Micro Devices, Inc.

发明人： Marcelo J. Franco ,  David C. Dening ,  Robert J. Baeten

IPC分类号： H04B1/26 ,  H03D9/06

CPC分类号： H04B1/0458 ,  H03D7/161 ,  H03D9/06 ,  H04B1/18

摘要： The present invention relates to an adaptable RF impedance translation circuit that includes a first group of inductive elements cascaded in series between an input and an output without any series switching elements, a second group of inductive elements cascaded in series, and a group of switching elements that are capable of electrically coupling the first group of inductive elements to the second group of inductive elements. Further, the adaptable RF impedance translation circuit includes at least one variable shunt capacitance circuit electrically coupled between a common reference and at least one connection node in the adaptable RF impedance translation circuit, which includes control circuitry to select either an OFF state or an ON state associated with each of the switching elements and to select a capacitance associated with each variable shunt capacitance circuit to control impedance translation characteristics of the adaptable RF impedance translation circuit.

摘要翻译： 本发明涉及一种适应性RF阻抗转换电路，其包括串联在输入和输出之间的第一组感性元件，不包括任何串联开关元件，串联级联的第二组电感元件和一组开关元件 其能够将第一组电感元件电耦合到第二组电感元件。 此外，适应性RF阻抗转换电路包括电耦合在适应性RF阻抗转换电路中的公共参考和至少一个连接节点之间的至少一个可变分流电容电路，其包括选择OFF状态或ON状态的控制电路 与每个开关元件相关联并且选择与每个可变分流电容电路相关联的电容以控制可适应RF阻抗转换电路的阻抗平移特性。