公开(公告)号：US20220368298A1

公开(公告)日：2022-11-17

申请号：US17621781

申请日：2019-06-24

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Mingquan BAO

IPC分类号： H03F3/60 ,  H03F1/18 ,  H03F1/56 ,  H03F3/24

摘要： A power amplifier has a number n of power cells Ai, a number n of output transmission lines TL1i for combining output powers from the power cells, and a number n of impedance transformation network ITNi, where i=1, . . . n. The number n of output transmission lines are connected in series. The output terminal of each power cells is connected to its output transmission line via its impedance transformation network. Each impedance transformation network is an upward impedance transformation network for transforming an output impedance of each power cell at the input terminal of the impedance transformation network into a higher impedance at the output terminal of the impedance transformation network. A number n of input transmission lines TL0i (i=1, 2 . . . n)=connected in series. The input terminal of the i-th power cell is connected to the second terminal of the i-th transmission line via a capacitor, where i=1, . . . n.

公开(公告)号：US20210075375A1

公开(公告)日：2021-03-11

申请号：US17094451

申请日：2020-11-10

申请人： Mitsubishi Electric Corporation

发明人： Eigo KUWATA ,  Makoto KIMURA ,  Jun KAMIOKA

IPC分类号： H03F1/18 ,  H03F3/60 ,  H03F3/68

摘要： A high-efficiency amplifier is configured so that short stubs are provided in a line between a first substrate end and a second substrate end of a substrate, and among the short stubs, short stubs provided at locations other than both ends of the line include two short stubs and which are adjacent to each other, and which are provided at locations at which the two short stubs are to be electromagnetically coupled to each other.

公开(公告)号：US10530311B2

公开(公告)日：2020-01-07

申请号：US16150556

申请日：2018-10-03

申请人： Qorvo US, Inc.

发明人： Nadim Khlat ,  Philippe Gorisse ,  Jeffrey D. Potts ,  Michael R. Kay

IPC分类号： H03F1/32 ,  H03F1/02 ,  H03F3/24 ,  H03F1/18 ,  H03F1/30 ,  H03F3/19

摘要： Aspects disclosed in the detailed description include an envelope tracking (ET) amplifier circuit. The ET amplifier circuit includes ET tracker circuitry configured to provide an ET modulated voltage, which tracks an ET modulated target voltage, to an amplifier circuit(s) for amplifying a radio frequency (RF) signal. The ET amplifier circuit also includes fast switcher circuitry that is activated to provide an alternate current (AC) current to the amplifier circuit(s) when the RF signal includes a higher number of resource blocks (RBs). However, the fast switcher circuitry and its associated control circuitry may incur a processing delay that can cause the fast switcher circuitry to lag behind the ET modulated target voltage. As such, the ET amplifier circuit further includes timing adjustment circuitry to help compensate for the processing delay, thus helping to maintain efficiency of the ET tracker circuitry for improved performance of the ET amplifier circuit.

公开(公告)号：US20180294775A1

公开(公告)日：2018-10-11

申请号：US15600739

申请日：2017-05-21

申请人： Chin-Huei YUAN

发明人： Shan-Jui LU

IPC分类号： H03F1/02 ,  H03G1/00 ,  H03G3/00 ,  H03F1/18 ,  H03F1/42 ,  H02B1/30 ,  H01R13/04

摘要： A radio-frequency signal processing module capable of effectively removing power interference, including: a module body; a circuit board, placed inside the module body; at least one broadband system power connector electrically coupled with the circuit board; and a plurality of radio-frequency connectors electrically coupled with the circuit board for receiving at least one input radio-frequency signal and providing at least one output radio-frequency signal; wherein, the broadband system power connector has a space accommodating at least one filtering device so that interference of a power source can be attenuated and electromagnetic waves resulting from the interference can be dissipated outside the circuit board.

公开(公告)号：US20180123522A1

公开(公告)日：2018-05-03

申请号：US15859270

申请日：2017-12-29

申请人： ALIREZA ALEMI

发明人： ALIREZA ALEMI

IPC分类号： H03F1/18 ,  H03F3/60

摘要： A new method for amplifying signals having higher bandwidth, lower T.H.D, higher efficiency, smaller circuit size and lower costs in design, has been developed. A clipped signal is amplified to smaller pieces and each smaller part is amplified. Adding clipped amplified signals to each other, the main amplified signal is generated.

公开(公告)号：US09602061B2

公开(公告)日：2017-03-21

申请号：US14610283

申请日：2015-01-30

申请人： FUJITSU LIMITED

发明人： Yoshitaka Niida

IPC分类号： H03F1/18 ,  H03F3/21 ,  H03F3/193 ,  H03F3/60

CPC分类号： H03F1/18 ,  H03F3/193 ,  H03F3/21 ,  H03F3/607 ,  H03F2200/108 ,  H03F2200/451

摘要： A distributed amplifier includes a plurality of transistors, a first line connecting gate electrodes of the transistors to each other, and a second line connecting drain electrodes of the transistors to each other, wherein the first line and the second line are electromagnetically coupled to each other at a position situated between immediately adjacent transistors among the plurality of transistors.

公开(公告)号：US08370113B2

公开(公告)日：2013-02-05

申请号：US12152843

申请日：2008-05-16

申请人： Roy G. Batruni

发明人： Roy G. Batruni

IPC分类号： H03F1/32 ,  H03F1/12 ,  H03F1/18 ,  H03F1/26

CPC分类号： H04B1/10 ,  G01R31/31709 ,  H03H21/0012 ,  H03H2021/0041 ,  H03H2021/0083 ,  H03M1/1042 ,  H03M1/12

摘要： A signal processing method includes inputting a digital signal, providing a plurality of coefficients; and determining an output. The output is approximately equal to an aggregate of a plurality of linear reference components, and each of the linear reference components is approximately equal to an aggregate of a corresponding set of digital signal samples that is scaled by the plurality of coefficients.

公开(公告)号：US20050189994A1

公开(公告)日：2005-09-01

申请号：US11047475

申请日：2005-01-31

申请人： Didier Belot

发明人： Didier Belot

IPC分类号： H03F1/18 ,  H03F3/60 ,  H03F3/68

CPC分类号： H03F3/607 ,  H03F1/18 ,  H03F2200/294 ,  H03F2200/372

摘要： An embodiment of an electronic signal amplifier comprises a power source, an input inductor, an output inductor and one or more branches connected in parallel between the terminals of the power source. Each branch comprises a transistor having a control electrode connected to an intermediate terminal of the input inductor, a first main electrode connected to a first terminal of the power source, and a second main electrode connected to a second terminal of the power source via a capacitor. The second main electrode of each transistor of a branch is also connected to an intermediate terminal of the output inductor.

摘要翻译： 电子信号放大器的实施例包括电源，输入电感器，输出电感器以及在电源的端子之间并联连接的一个或多个分支。 每个分支包括具有连接到输入电感器的中间端子的控制电极的晶体管，连接到电源的第一端子的第一主电极和经由电容器连接到电源的第二端子的第二主电极 。 分支的每个晶体管的第二主电极也连接到输出电感器的中间端子。

公开(公告)号：US06052572A

公开(公告)日：2000-04-18

申请号：US880154

申请日：1997-06-20

申请人： Minoru Imura

发明人： Minoru Imura

IPC分类号： H03G1/00 ,  H03G3/30 ,  H04B1/10 ,  H04B1/16 ,  H04B1/18 ,  H04B1/3822 ,  H04B1/40 ,  H04B7/26 ,  H04W52/02 ,  H03F1/18 ,  H03H1/20

CPC分类号： H04W52/0245 ,  H03G1/0088 ,  H03G3/3052 ,  H04B1/109 ,  H04B1/18 ,  Y02B60/50

摘要： A mobile communication apparatus includes an amplification circuit, a power supply section, a signal conversion section, a detector, and a control section. The amplification circuit amplifies a received radio signal to output an RF-amplified signal. The power supply section supplies power to the RF amplification circuit. The signal conversion section converts one of the RF-amplified signal and the received radio signal from the RF amplification circuit into an intermediate frequency signal. The detector detects the IF signal output from the signal conversion section. The control section detects the reception sensitivity of the received radio signal on the basis of the RF-amplified signal from the RF amplification circuit, and controls the supply of power from the power supply section to the RF amplification circuit and performs bypass control on the RF amplification circuit on the basis of the detected reception sensitivity and a predetermined reception sensitivity.

摘要翻译： 移动通信设备包括放大电路，电源部分，信号转换部分，检测器和控制部分。 放大电路放大接收到的无线电信号以输出RF放大信号。 电源部分为RF放大电路供电。 信号转换部分将来自RF放大电路的RF放大信号和接收无线电信号中的一个转换为中频信号。 检测器检测从信号转换部分输出的IF信号。 控制部根据来自RF放大电路的RF放大信号来检测接收到的无线信号的接收灵敏度，并控制从电源部向R​​F放大电路的供电，并对RF进行旁路控制 基于检测到的接收灵敏度和预定的接收灵敏度来设置放大电路。

公开(公告)号：US5146175A

公开(公告)日：1992-09-08

申请号：US748988

申请日：1991-08-21

申请人： Donald R. Green, Jr.

发明人： Donald R. Green, Jr.

IPC分类号： H03F1/18 ,  H03F3/60 ,  H03F3/68

CPC分类号： H03F3/605

摘要： A reduced loss coupling technique for combining multiple, parallel, gain-stages to form an amplifier. A first transmission line, with multiple taps, couples the inputs of the gain-stages together and to an input port for the amplifier. A second transmission line, also with multiple taps, couples the outputs of the gain-stages together and to an ouput port for the amplifier. Preferably, the output port is connected to the end of the second transmission line while the input port is connected asymmetrically (off center) along the first transmission line. The actual position of the input port along the first transmission line is determined by the desired amount of phase mismatch of between signal paths through all of the gain-stages as measured from the input port to the output port.