公开(公告)号：US09954504B2

公开(公告)日：2018-04-24

申请号：US15365092

申请日：2016-11-30

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Yasushi Oyama ,  Takayuki Tsutsui ,  Kazuhito Nakai

IPC: H03G1/00 ,  H03F3/213 ,  H03F1/56 ,  H03F3/19 ,  H03F3/24 ,  H03F3/72

CPC classification number: H03G1/0094 ,  H03F1/56 ,  H03F3/19 ,  H03F3/213 ,  H03F3/245 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/165 ,  H03F2200/222 ,  H03F2200/318 ,  H03F2200/387 ,  H03F2203/7209 ,  H03G2201/106 ,  H03G2201/40

Abstract: A power amplification module includes a first input terminal that receives a first transmit signal in a first frequency band, a second input terminal that receives a second transmit signal in a second frequency band having a narrower transmit/receive frequency interval than the first frequency band, a first amplification circuit that receives and amplifies the first transmit signal to produce a first amplified signal and outputs the first amplified signal, a second amplification circuit that receives and amplifies the second transmit signal to produce a second amplified signal and outputs the second amplified signal, a third amplification circuit that receives and amplifies the first or second amplified signal to produce an output signal and outputs the output signal, and an attenuation circuit located between the second input terminal and the second amplification circuit and configured to attenuate a receive frequency band component of the second frequency band.

公开(公告)号：US20170019082A1

公开(公告)日：2017-01-19

申请号：US15201999

申请日：2016-07-05

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shota Ishihara ,  Yusuke Shimamune ,  Takashi Soga ,  Fuminori Morisawa ,  Seiko Ono ,  Tetsuaki Adachi

IPC: H03G3/30 ,  H03F3/24 ,  H03F1/56 ,  H03F3/19

CPC classification number: H03G3/3042 ,  H03F1/565 ,  H03F3/19 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/222 ,  H03F2200/318 ,  H03F2200/387 ,  H03F2200/408 ,  H03F2200/451 ,  H03G3/3047 ,  H03G2201/40

Abstract: Provided is a power amplification module that includes: an amplification transistor that has a constant power supply voltage supplied to a collector thereof, a bias current supplied to a base thereof and that amplifies an input signal input to the base thereof and outputs an amplified signal from the collector thereof; a first current source that outputs a first current that corresponds to a level control voltage that is for controlling a signal level of the amplified signal; and a bias transistor that has the first current supplied to a collector thereof, a bias control voltage connected to a base thereof and that outputs the bias current from an emitter thereof.

Abstract translation: 提供了一种功率放大模块，其包括：放大晶体管，其具有提供给其集电极的恒定电源电压，提供给其基极的偏置电流，并且放大输入到其基极的输入信号，并输出来自 其收集器; 输出对应于用于控制放大信号的信号电平的电平控制电压的第一电流的第一电流源; 以及具有提供给其集电极的第一电流的偏置晶体管，连接到其基极并从其发射极输出偏置电流的偏置控制电压。

公开(公告)号：US07720447B2

公开(公告)日：2010-05-18

申请号：US10584227

申请日：2004-11-19

Applicant: Gregory Fron

Inventor： Gregory Fron

IPC: H03C1/52 ,  H04B1/02

CPC classification number: H03G3/3047 ,  H03F1/30 ,  H03F1/52 ,  H03F3/189 ,  H03F3/19 ,  H03F2200/465 ,  H03F2200/78 ,  H03G3/004 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/40

Abstract: The disclosure relates to a radio frequency (RF) and/or microwave power amplification device which is intended, for example, for a radio communication terminal, comprising means for shielding the device and means for controlling the power delivered as output from said device, said power-control means comprising a power servo loop having power-amplification means, reference means, detection means and comparison means. The aforementioned control means also comprise at least one sensor to detect the energy radiated inside the device.

Abstract translation: 本公开涉及一种例如用于无线电通信终端的射频（RF）和/或微波功率放大装置，包括用于屏蔽装置的装置和用于控制作为所述装置输出的功率的装置，所述装置 功率控制装置包括具有功率放大装置，参考装置，检测装置和比较装置的功率伺服环路。 上述控制装置还包括至少一个传感器，以检测在装置内辐射的能量。

公开(公告)号：US07443245B2

公开(公告)日：2008-10-28

申请号：US11976638

申请日：2007-10-26

Applicant: Hirokazu Tsurumaki ,  Hiroyuki Nagai ,  Tomio Furuya ,  Makoto Ishikawa

Inventor： Hirokazu Tsurumaki ,  Hiroyuki Nagai ,  Tomio Furuya ,  Makoto Ishikawa

IPC: H03G3/10

CPC classification number: H03G1/0005 ,  H03F1/301 ,  H03F2200/294 ,  H03F2200/372 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/40

Abstract: In a high frequency power amplifier circuit that supplies a bias to an amplifying FET by a current mirror method, scattering of a threshold voltage Vth due to the scattering of the channel impurity concentration of the FET, and a shift of a bias point caused by the scattering of the threshold voltage Vth and a channel length modulation coefficient λ due to a short channel effect are corrected automatically. The scattering of a high frequency power amplifying characteristic can be reduced as a result.

Abstract translation: 在通过电流镜法向放大FET提供偏置的高频功率放大器电路中，由于FET的沟道杂质浓度的散射引起的阈值电压Vth的散射和由 自动校正阈值电压Vth的散射和由于短通道效应引起的通道长度调制系数λ。 结果可以降低高频功率放大特性的散射。

公开(公告)号：US07366482B2

公开(公告)日：2008-04-29

申请号：US10529538

申请日：2004-08-10

Applicant: Yoshihiro Hara ,  Mamoru Arayashiki

Inventor： Yoshihiro Hara ,  Mamoru Arayashiki

IPC: H04B1/04

CPC classification number: H03F1/0222 ,  H03F1/02 ,  H03F3/189 ,  H03F3/24 ,  H03G3/004 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/307 ,  H03G2201/40 ,  H04B2001/045

Abstract: Either linear operating mode or saturation operating mode is set as the operating mode of a high-frequency power amplifier on the basis of an operating mode set signal. The gain of a variable gain amplifier provided in front of the high-frequency power amplifier and values of output voltage and bias current supplied from a supply voltage/bias current control circuit to the high-frequency power amplifier are switched. The gain of the variable gain amplifier in the saturation operating mode is formed so as to be higher by a predetermined value than that in the linear operating mode. Accordingly, the high-frequency power amplifier operates in the designated operating mode, so that the output transmission power range can be widened.

Abstract translation: 基于操作模式设定信号，将线性工作模式或饱和运行模式设置为高频功率放大器的工作模式。 在高频功率放大器前面提供的可变增益放大器的增益和从电源电压/偏置电流控制电路提供给高频功率放大器的输出电压和偏置电流的值被切换。 饱和运行模式中的可变增益放大器的增益形成为比线性运行模式中的预定值高。 因此，高频功率放大器在指定的工作模式下工作，从而可以扩大输出传输功率范围。

公开(公告)号：US07288986B2

公开(公告)日：2007-10-30

申请号：US10836197

申请日：2004-05-03

Applicant: Kenji Toyota ,  Kazuaki Hori ,  Kazuhiko Hikasa

Inventor： Kenji Toyota ,  Kazuaki Hori ,  Kazuhiko Hikasa

IPC: H03G3/20

CPC classification number: H03F1/0261 ,  H03F3/245 ,  H03F3/45085 ,  H03G1/00 ,  H03G1/0023 ,  H03G3/3042 ,  H03G2201/40

Abstract: The present invention provides a communication semiconductor integrated circuit device equipped with a high-frequency power amplifier circuit including a gain control amplifier and a bias circuit which supplies such a bias current as to linearly change the gain of the gain control amplifier, and a wireless communication system using the same. A bias current generating circuit which supplies a bias current to a linear amplifier that constitutes the communication high-frequency power amplifier circuit, comprises a plurality of variable current sources respectively different in current value and start level. These variable current sources are controlled according to an input control voltage and thereby combine their currents into a bias current. The combined bias current changes exponentially with respect to the input control voltage.

Abstract translation: 本发明提供了一种配备有包括增益控制放大器和偏置电路的高频功率放大器电路的通信半导体集成电路装置，该偏置电路提供这样的偏置电流以线性地改变增益控制放大器的增益，以及无线通信 系统使用相同。 向构成通信高频功率放大器电路的线性放大器提供偏置电流的偏置电流产生电路包括分别与电流值和起始电平不同的多个可变电流源。 这些可变电流源根据输入控制电压进行控制，从而将它们的电流组合成偏置电流。 组合的偏置电流相对于输入控制电压呈指数变化。

公开(公告)号：US07271662B2

公开(公告)日：2007-09-18

申请号：US11227109

申请日：2005-09-16

Applicant: Hitoshi Akamine ,  Masahiro Tsuchiya ,  Kyoichi Takahashi ,  Kazuhiro Koshio

Inventor： Hitoshi Akamine ,  Masahiro Tsuchiya ,  Kyoichi Takahashi ,  Kazuhiro Koshio

IPC: H03G5/16 ,  H03F3/68

CPC classification number: H03F3/191 ,  H03F1/30 ,  H03F1/32 ,  H03G1/007 ,  H03G3/004 ,  H03G3/3047 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/40

Abstract: In a high frequency power amplifier circuit in which bias voltages are applied to the transistors for amplification by current mirroring, this invention enables preventing waveform distortion near the peak output power level by allowing sufficient idle currents to flow through the transistors for amplification, while enhancing the power efficiency in a low output power region. The power amplifier includes a detection circuit comprising a transistor for detection which receives the AC component of an input signal to the last-stage transistor for amplification at its control terminal, a current mirror circuit which mirrors current flowing through that transistor, and a current-voltage conversion means which converts current flowing in the slave side of the current mirror circuit into a voltage. In the detection circuit, a voltage from a bias circuit for generating the bias voltages for the transistors for amplification is applied to the control terminal of the transistor for detection and output of the detection circuit is applied to the control terminal of the last-stage transistor for amplification.

Abstract translation: 在通过电流镜像将偏置电压施加到晶体管以进行放大的高频功率放大器电路中，本发明能够通过允许足够的空闲电流流过晶体管进行放大，从而防止峰值输出功率电平附近的波形失真，同时增强 低输出功率区域的功率效率。 功率放大器包括检测电路，该检测电路包括用于检测的晶体管，其将用于在其控制端子处放大的最后级晶体管的输入信号的AC分量接收;反射电流流过该晶体管的电流镜电路， 电压转换装置，其将在电流镜电路的从侧中流动的电流转换成电压。 在检测电路中，用于产生用于放大的晶体管的偏置电压的偏置电路的电压被施加到用于检测的晶体管的控制端，并且检测电路的输出被施加到最后级晶体管的控制端 用于扩增。

公开(公告)号：US20060232339A1

公开(公告)日：2006-10-19

申请号：US11105752

申请日：2005-04-14

Applicant: Frank DeMonte

Inventor： Frank DeMonte

IPC: H03G3/10

CPC classification number: H03G1/0023 ,  H03G3/3036 ,  H03G2201/40

Abstract: An apparatus having an electronic amplifier with signal gain dependent bias. The electronic apparatus includes the amplifier and a bias state control circuit. The electronic amplifier has a signal gain and a bias state. The signal gain is adjustable to either of at least two different signal gain settings, and the bias state is adjustable to either of at least two different bias state settings. The bias state control circuit has capability of adjusting the bias state setting of the amplifier based upon the signal gain setting to which the amplifier is adjusted.

Abstract translation: 一种具有信号增益相关偏置的电子放大器的装置。 电子设备包括放大器和偏置状态控制电路。 电子放大器具有信号增益和偏置状态。 信号增益可调节至少两个不同的信号增益设置，偏置状态可调整至至少两个不同的偏置状态设置。 偏置状态控制电路具有根据调整放大器的信号增益设定来调整放大器的偏置状态设定的能力。

公开(公告)号：US20040174219A1

公开(公告)日：2004-09-09

申请号：US10799673

申请日：2004-03-15

Applicant: Renesas Technology Corp.

Inventor： Masashi Suzuki ,  Hitoshi Akamine ,  Tetsuaki Adachi ,  Takahiro Sato ,  Masashi Maruyama ,  Susumu Takada

IPC: H03G003/10

CPC classification number: H01L27/0629 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/49111 ,  H01L2224/49175 ,  H03F1/301 ,  H03F3/193 ,  H03F2200/294 ,  H03F2200/372 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/206 ,  H03G2201/307 ,  H03G2201/40 ,  H01L2924/00014

Abstract: The number of components of a high frequency power amplifier is reduced. A bias resistance ratio is adjusted in accordance with a change in the threshold voltage Vth of a transistor. There is provided a high frequency power amplifier having a plurality of amplifying systems, characterized in that each of the amplifying systems comprises an input terminal to which a signal to be amplified is supplied, an output terminal, a bias terminal, a plurality of amplifying stages which are sequentially cascaded between the input terminal and output terminal, and a bias circuit connected to the bias terminal and each of the amplifying stages to apply a bias potential to the amplifying stage, in that the amplifying stage includes a control terminal for receiving an input signal and the bias potential supplied to the stage and a first terminal for transmitting an output signal of the stage, and in that a first amplifying stage and a second amplifying stage of each of the amplifying systems are monolithically formed on a single semiconductor chip, and a part of bias resistors that constitute bias circuits of the first amplifying stage and second amplifying stage are monolithically formed on the semiconductor chip.

Abstract translation: 高频功率放大器的组件数量减少。 根据晶体管的阈值电压Vth的变化来调整偏置电阻比。 提供了一种具有多个放大系统的高频功率放大器，其特征在于，每个放大系统包括一个输入端，供给放大信号的输入端，输出端，偏置端，多个放大级 它们在输入端子和输出端子之间顺序级联，以及连接到偏置端子和每个放大级的偏置电路，以向放大级施加偏置电位，因为放大级包括用于接收输入端的控制端子 信号和提供给该级的偏置电位和用于发送该级的输出信号的第一端子，并且每个放大系统的第一放大级和第二放大级单片地形成在单个半导体芯片上，以及 构成第一放大级和第二放大级的偏置电路的偏置电阻的一部分是整体式的 y形成在半导体芯片上。

公开(公告)号：US06560446B2

公开(公告)日：2003-05-06

申请号：US09811082

申请日：2001-03-16

Applicant: Balasubramanian Ramachandran

Inventor： Balasubramanian Ramachandran

IPC: H04Q720

CPC classification number: H04W52/267 ,  H03G3/004 ,  H03G3/3042 ,  H03G2201/103 ,  H03G2201/307 ,  H03G2201/40 ,  H03G2201/508 ,  H04B1/109 ,  H04L1/0001 ,  H04W52/08 ,  H04W52/38

Abstract: A dynamically varying linearity system “DVLS” capable of varying the linearity of a radio frequency (RF) front-end of a communication device responsive to receiving a condition signal indicating a desired mode of operation of a transmitter. The DVLS may include a condition signal indicative of the desired mode of operation and a controller that adjusts the linearity of the transmitter responsive to the condition signal. The condition signal may be responsive to a user interface. The controller, responsive to the condition signal, may dynamically adjust the operating current of the transmitter.

Abstract translation: 一种动态变化的线性系统“DVLS”，其能够响应于接收到指示发射机的所需操作模式的条件信号而改变通信设备的射频（RF）前端的线性度。 DVLS可以包括指示期望的操作模式的条件信号和响应于条件信号来调整发射机的线性度的控制器。 条件信号可以响应于用户界面。 控制器响应于条件信号，可以动态地调整发射机的工作电流。