公开(公告)号：US20140191806A1

公开(公告)日：2014-07-10

申请号：US14098883

申请日：2013-12-06

Applicant: ADVANCED SEMICONDUCTOR ENGINEERING INC.

Inventor： JAW-MING DING ,  CHIEN-YEH LIU

IPC: H03F3/193 ,  H03F1/00

CPC classification number: H03F3/191 ,  H03F1/0266

Abstract: A radio frequency (RF) power amplifier is disclosed. The RF power amplifier includes a bias circuit, an output stage circuit and dynamic bias controlling circuit. The bias circuit receives a first system voltage and provides a working voltage accordingly. The output stage circuit receives the working voltage so as to work at an operation bias point. The dynamic bias controlling circuit detects a RF input signal and outputs a compensation voltage to the bias circuit according to variation of the RF input signal, wherein the dynamic bias controlling circuit is an open loop configuration. When an input power of the RF input signal increases and makes the working voltage decreases so as to shift the operation bias point, the bias circuit adjusts the working voltage upward so as to recover or enhance the operation bias point according to the compensation voltage received.

Abstract translation: 公开了射频（RF）功率放大器。 RF功率放大器包括偏置电路，输出级电路和动态偏置控制电路。 偏置电路接收第一系统电压并相应地提供工作电压。 输出级电路接收工作电压，以便在操作偏压点工作。 动态偏置控制电路检测RF输入信号，并根据RF输入信号的变化向偏置电路输出补偿电压，其中动态偏置控制电路是开环配置。 当RF输入信号的输入功率增加并且使工作电压降低以便移动操作偏置点时，偏置电路向上调整工作电压，以便根据所接收的补偿电压来恢复或增强操作偏压点。

公开(公告)号：US20140167854A1

公开(公告)日：2014-06-19

申请号：US14083633

申请日：2013-11-19

Applicant: ADVANCED SEMICONDUCTOR ENGINEERING INC.

Inventor： JAW-MING DING ,  CHIEN-YEH LIU

IPC: H03F1/02

CPC classification number: H03F1/0272 ,  H03F1/302 ,  H03F1/32 ,  H03F1/56 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/18 ,  H03F2200/222 ,  H03F2200/387

Abstract: A radio frequency (RF) power amplifier is disclosed. The RF power amplifier includes a bias circuit, an output stage circuit and dynamic bias controlling circuit. The bias circuit receives a system voltage and the bias circuit provides a working voltage according to the system voltage. The output stage circuit receives the working voltage so as to work at an operation bias point. The dynamic bias controlling circuit receives the working voltage and outputs a compensation voltage to the bias circuit according to a variation of the working voltage. When the input power increases and makes the working voltage decreases so as to shift the operation bias point, the bias circuit adjusts the working voltage upward so as to recover the operation bias point according to the compensation voltage received.

Abstract translation: 公开了射频（RF）功率放大器。 RF功率放大器包括偏置电路，输出级电路和动态偏置控制电路。 偏置电路接收系统电压，偏置电路根据系统电压提供工作电压。 输出级电路接收工作电压，以便在操作偏压点工作。 动态偏置控制电路接收工作电压，并根据工作电压的变化向偏置电路输出补偿电压。 当输入功率增加并且使工作电压降低以便移动操作偏置点时，偏置电路向上调节工作电压，以便根据所接收的补偿电压恢复工作偏置点。

公开(公告)号：US20150263675A1

公开(公告)日：2015-09-17

申请号：US14214983

申请日：2014-03-16

Applicant: ADVANCED SEMICONDUCTOR ENGINEERING INC.

Inventor： JAW-MING DING ,  CHIEN-YEH LIU

IPC: H03F1/02 ,  H03F3/19

CPC classification number: H03F1/0211 ,  H03F1/0272 ,  H03F1/223 ,  H03F1/301 ,  H03F3/19 ,  H03F3/193 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/555

Abstract: A low noise amplifier is disclosed. The low noise amplifier comprises a current mirror circuit, a bias circuit, a cascode amplifying circuit and a power gain compensating circuit. The current mirror circuit is used for providing a mapping current. The bias circuit is used for receiving a mapping current and outputting a first bias voltage and a second bias voltage according to the mapping current. The cascode amplifying circuit respectively receives the first bias voltage and the second bias voltage, and accordingly to work at an operation bias point. The power gain compensating circuit is used for receiving a RF output signal and accordingly outputs a gain compensating signal to the current mirror circuit so as to dynamically adjust current value of the mapping current and further to compensates power gain of the low noise amplifier in order to increase linearity.

Abstract translation: 公开了一种低噪声放大器。 低噪声放大器包括电流镜电路，偏置电路，共源共栅放大电路和功率增益补偿电路。 电流镜电路用于提供映射电流。 偏置电路用于接收映射电流，并根据映射电流输出第一偏置电压和第二偏置电压。 共射共基放大电路分别接收第一偏置电压和第二偏置电压，并因此在工作偏压点工作。 功率增益补偿电路用于接收RF输出信号，并且相应地向电流镜电路输出增益补偿信号，以动态调整映射电流的电流值，并进一步补偿低噪声放大器的功率增益，以便 增加线性度

公开(公告)号：US20150244053A1

公开(公告)日：2015-08-27

申请号：US14266070

申请日：2014-04-30

Applicant: ADVANCED SEMICONDUCTOR ENGINEERING INC.

Inventor： CHIEN-YEH LIU ,  Wei-Hsuan Lee ,  JAW-MING DING ,  Huang-Hua Wen

IPC: H01P5/04

CPC classification number: H01P5/028

Abstract: A tunable radio frequency (RF) coupler and manufacturing method thereof are provided. The tunable RF coupler includes an insulating layer, a first transmission line and a second transmission line. The second transmission line is disposed corresponding to the first transmission line and the insulating layer is disposed between the first transmission line and the second transmission line. The second transmission line includes a plurality of segments separated from each other and arranged along the extension path of the first transmission line. At least one wire is configured to establish an electrical connection between at least two segments, such that the two segments are electrically conductive to each other through the wire.

Abstract translation: 提供了一种可调谐射频（RF）耦合器及其制造方法。 可调谐RF耦合器包括绝缘层，第一传输线和第二传输线。 第二传输线对应于第一传输线布置，并且绝缘层设置在第一传输线和第二传输线之间。 第二传输线包括彼此分离并沿着第一传输线的延伸路径布置的多个段。 至少一根线被配置成在至少两个段之间建立电连接，使得两个段通过导线相互导电。