公开(公告)号：EP3020129A4

公开(公告)日：2017-03-15

申请号：EP14822702

申请日：2014-07-09

Applicant: SKYWORKS SOLUTIONS INC

Inventor： GORBACHOV OLEKSANDR ,  ZHAO HUAN ,  ZHANG LISETTE L ,  MUSIOL LOTHAR ,  QIAN YONGXI

IPC: H03G3/20 ,  H03F1/02 ,  H03F1/52 ,  H03F1/56 ,  H03F3/195 ,  H03F3/24 ,  H03G3/30

CPC classification number: H03F1/523 ,  H03F1/0266 ,  H03F1/56 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/105 ,  H03F2200/192 ,  H03F2200/204 ,  H03F2200/222 ,  H03F2200/318 ,  H03F2200/387 ,  H03F2200/405 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2200/555 ,  H03F2200/78 ,  H03G3/3042 ,  H03G2201/106

Abstract: An RF power amplifier circuit and input power limiter circuits are disclosed. A power detector generates a voltage output proportional to a power level of an input signal. There is a directional coupler with a first port connected to a transmit signal input, a second port connected to the input matching network, and a third port connected to the power detector. A first power amplifier stage with an input is connected to the input matching network and an output is connected to the transmit signal output. A control circuit connected to the power detector generates a gain reduction signal based upon a comparison of the voltage output from the power detector to predefined voltage levels corresponding to specific power levels of the input signal. Overall gain of the RF power amplifier circuit is reduced based upon the gain reduction signal that adjusts the configurations of the circuit components.

Abstract translation: 公开了RF功率放大器电路和输入功率限制器电路。 功率检测器产生与输入信号的功率电平成比例的电压输出。 存在定向耦合器，其具有连接到发射信号输入的第一端口，连接到输入匹配网络的第二端口和连接到功率检测器的第三端口。 具有输入的第一功率放大器级连接到输入匹配网络，并且输出连接到发射信号输出。 连接到功率检测器的控制电路基于从功率检测器输出的电压与对应于输入信号的特定功率电平的预定电压电平的比较产生增益降低信号。 基于调整电路部件的配置的增益减小信号，RF功率放大器电路的总体增益被减小。

公开(公告)号：WO2018080713A1

公开(公告)日：2018-05-03

申请号：PCT/US2017/053827

申请日：2017-09-27

Applicant: QUALCOMM INCORPORATED

Inventor： CHEN, Jiang ,  GOLDBLATT, Jeremy ,  CABANILLAS, Jose

IPC: H03F1/02 ,  H03F1/32 ,  H03F3/189 ,  H03F3/193

CPC classification number: H03G3/3042 ,  H03F1/0266 ,  H03F1/223 ,  H03F1/32 ,  H03F1/56 ,  H03F3/189 ,  H03F3/193 ,  H03F3/21 ,  H03F3/245 ,  H03F3/45179 ,  H03F3/505 ,  H03F2200/102 ,  H03F2200/211 ,  H03F2200/222 ,  H03F2200/318 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/537 ,  H03F2200/69 ,  H03F2203/45394 ,  H03G2201/106

Abstract: A power amplifier bias circuit with embedded envelope detection includes a bias circuit stage coupled to an envelope detector circuit to increases a bias provided to a power amplifier as a function of an incoming envelope signal. The envelope detector circuit includes a first source/emitter follower transistor, a current source, and a filter to generate a baseband envelope signal. The current source is coupled to an output node of the first source/emitter follower transistor and the filter is also coupled to the output node of the first source/emitter follower transistor. The bias circuit stage includes one or more replica transistors that replicate transistors of the power amplifier or power amplifier core stage, an envelope detector replica transistor and a replica of the current source of the envelope detector circuit.

Abstract translation: 具有嵌入包络检测的功率放大器偏置电路包括耦合到包络检测器电路的偏置电路级，以根据输入包络信号增加提供给功率放大器的偏置。 包络检测器电路包括第一源极/射极跟随器晶体管，电流源和用于生成基带包络信号的滤波器。 电流源耦合到第一源极/射极跟随器晶体管的输出节点，并且滤波器也耦合到第一源极/射极跟随器晶体管的输出节点。 偏置电路级包括复制功率放大器或功率放大器核心级的晶体管的一个或多个复制晶体管，包络检测器复制晶体管和包络检测器电路的电流源的复制品。

公开(公告)号：WO2016052854A1

公开(公告)日：2016-04-07

申请号：PCT/KR2015/008020

申请日：2015-07-31

Applicant: 삼성전자주식회사

Inventor： 이인규 ,  김우연 ,  김형범 ,  성민희 ,  송영민

IPC: H04B1/48 ,  H03G3/00

CPC classification number: H03G3/3042 ,  H03F1/0205 ,  H03F3/193 ,  H03F3/245 ,  H03F2200/451 ,  H03G3/00 ,  H03G2201/106 ,  H04B1/40 ,  H04B1/48 ,  H04B17/327 ,  H04W52/52

Abstract: 본 발명은 무선 통신 시스템에서 전력 증폭기의 비선형적 특성을 개선하기 위한 장치 및 방법에 관한 것으로, 무선 통신 시스템에서 송신 장치는 트랜시버(transceiver)와 상기 트랜시버로부터 제공되는 신호를 증폭하는 증폭기를 포함하고, 상기 트랜시버는 상기 트랜시버로 입력되는 신호의 전력이 기준 값보다 작은 경우, 상기 전력에 대응하는 크기만큼 상기 신호의 전력을 감쇠시키는 것을 특징으로 한다. 또한, 본 발명은 상술한 실시 예와 다른 실시 예들도 포함한다.

Abstract translation: 本发明涉及一种改善无线通信系统中的功率放大器的非线性的装置和方法。 无线通信系统中的传输装置包括：收发机; 以及用于放大从所述收发器提供的信号的放大器，其中如果输入到所述收发器的信号的功率小于参考值，则所述收发器将所述信号的功率衰减相应于所述功率的量。 此外，本发明还包括与上述实施例不同的实施例。

公开(公告)号：EP2621085B1

公开(公告)日：2018-06-20

申请号：EP13151802.9

申请日：2013-01-18

Applicant: NXP USA, Inc.

Inventor： Ahmed, Abdulrhman ,  Bokatius, Mario M. ,  Hart, Paul R. ,  Staudinger, Joseph ,  Sweeney, Richard E.

IPC: H03F1/02 ,  H03F3/21 ,  H03F3/60 ,  H03F3/189 ,  H04L7/00 ,  G06F13/42 ,  H03F3/19 ,  H04L27/22 ,  H03G1/00 ,  H03F3/68 ,  G06G7/10

CPC classification number: H03F1/0288 ,  G06F13/4282 ,  G06G7/10 ,  H03F3/189 ,  H03F3/19 ,  H03F3/211 ,  H03F3/602 ,  H03F3/68 ,  H03F2200/387 ,  H03F2200/438 ,  H03F2200/451 ,  H03F2203/21106 ,  H03F2203/21193 ,  H03G1/0088 ,  H03G2201/106 ,  H04L7/0079 ,  H04L27/22

Abstract: An adjustable power splitter (101) includes: a power divider (105) with an input (107) and a first and second divider output (109, 111); a first adjustable phase shifter (113) and first adjustable attenuator (115) series coupled to the first divider output (109) and providing a first power output (117); and a second adjustable phase shifter (119) and second adjustable attenuator (121) series coupled to the second divider output (111) and providing a second power output (123).

公开(公告)号：EP3203639A1

公开(公告)日：2017-08-09

申请号：EP15846800.9

申请日：2015-07-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： LEE, In-Kyu ,  KIM, Woo-Yeun ,  KIM, Hyung-Bum ,  SUNG, Min-Hee ,  SONG, Young-Min

IPC: H04B1/48 ,  H03G3/00

CPC classification number: H03G3/3042 ,  H03F1/0205 ,  H03F3/193 ,  H03F3/245 ,  H03F2200/451 ,  H03G3/00 ,  H03G2201/106 ,  H04B1/40 ,  H04B1/48 ,  H04B17/327 ,  H04W52/52

Abstract: The present invention relates to an apparatus and a method for improving nonlinearity of a power amplifier in a wireless communication system. A transmission apparatus in a wireless communication system comprises: a transceiver; and an amplifier for amplifying a signal provided from the transceiver, wherein if the power of a signal inputted into the transceiver is smaller than a reference value, the transceiver attenuates the power of the signal by an amount corresponding to the power. In addition, the present invention also includes embodiments different from the embodiment stated above.

Abstract translation: 本发明涉及用于改善无线通信系统中的功率放大器的非线性的设备和方法。 一种无线通信系统中的传输装置，包括：收发器; 以及放大器，用于放大从收发器提供的信号，其中如果输入到收发器的信号的功率小于参考值，则收发器将信号的功率衰减对应于功率的量。 另外，本发明还包括与上述实施例不同的实施例。

公开(公告)号：EP2621085A2

公开(公告)日：2013-07-31

申请号：EP13151802.9

申请日：2013-01-18

Applicant: Freescale Semiconductor, Inc.

Inventor： Ahmed, Abdulrhman ,  Bokatius, Mario M. ,  Hart, Paul R. ,  Staudinger, Joseph ,  Sweeney, Richard E.

IPC: H03F1/02 ,  H03F3/21 ,  H03F3/60

CPC classification number: H03F1/0288 ,  G06F13/4282 ,  G06G7/10 ,  H03F3/189 ,  H03F3/19 ,  H03F3/211 ,  H03F3/602 ,  H03F3/68 ,  H03F2200/387 ,  H03F2200/438 ,  H03F2200/451 ,  H03F2203/21106 ,  H03F2203/21193 ,  H03G1/0088 ,  H03G2201/106 ,  H04L7/0079 ,  H04L27/22

Abstract: An adjustable power splitter (101) includes: a power divider (105) with an input (107) and a first and second divider output (109, 111); a first adjustable phase shifter (113) and first adjustable attenuator (115) series coupled to the first divider output (109) and providing a first power output (117); and a second adjustable phase shifter (119) and second adjustable attenuator (121) series coupled to the second divider output (111) and providing a second power output (123).

Abstract translation: 可调功率分配器（101）包括：具有输入（107）和第一和第二分频器输出（109,111）的功率分配器（105）; 第一可调移相器（113）和第一可调衰减器（115），串联耦合到第一分频器输出（109）并提供第一功率输出（117）; 以及耦合到第二分频器输出（111）并提供第二功率输出（123）的第二可调移相器（119）和第二可调衰减器（121）。

公开(公告)号：EP3203639A4

公开(公告)日：2018-01-31

申请号：EP15846800

申请日：2015-07-31

Applicant: SAMSUNG ELECTRONICS CO LTD

Inventor： LEE IN-KYU ,  KIM WOO-YEUN ,  KIM HYUNG-BUM ,  SUNG MIN-HEE ,  SONG YOUNG-MIN

IPC: H04B1/48 ,  H03G3/00

CPC classification number: H03G3/3042 ,  H03F1/0205 ,  H03F3/193 ,  H03F3/245 ,  H03F2200/451 ,  H03G3/00 ,  H03G2201/106 ,  H04B1/40 ,  H04B1/48 ,  H04B17/327 ,  H04W52/52

Abstract: The present invention relates to an apparatus and a method for improving nonlinearity of a power amplifier in a wireless communication system. A transmission apparatus in a wireless communication system comprises: a transceiver; and an amplifier for amplifying a signal provided from the transceiver, wherein if the power of a signal inputted into the transceiver is smaller than a reference value, the transceiver attenuates the power of the signal by an amount corresponding to the power. In addition, the present invention also includes embodiments different from the embodiment stated above.

公开(公告)号：EP3020129A1

公开(公告)日：2016-05-18

申请号：EP14822702.8

申请日：2014-07-09

Applicant: Rfaxis, Inc.

Inventor： Gorbachov, Oleksandr ,  Zhao, Huan ,  Zhang, Lisette L. ,  Musiol, Lothar ,  Qian, Yongxi

IPC: H03G3/20 ,  H03F1/52

CPC classification number: H03F1/523 ,  H03F1/0266 ,  H03F1/56 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/105 ,  H03F2200/192 ,  H03F2200/204 ,  H03F2200/222 ,  H03F2200/318 ,  H03F2200/387 ,  H03F2200/405 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2200/555 ,  H03F2200/78 ,  H03G3/3042 ,  H03G2201/106

Abstract: An RF power amplifier circuit and input power limiter circuits are disclosed. A power detector generates a voltage output proportional to a power level of an input signal. There is a directional coupler with a first port connected to a transmit signal input, a second port connected to the input matching network, and a third port connected to the power detector. A first power amplifier stage with an input is connected to the input matching network and an output is connected to the transmit signal output. A control circuit connected to the power detector generates a gain reduction signal based upon a comparison of the voltage output from the power detector to predefined voltage levels corresponding to specific power levels of the input signal. Overall gain of the RF power amplifier circuit is reduced based upon the gain reduction signal that adjusts the configurations of the circuit components.

公开(公告)号：EP2621085A3

公开(公告)日：2015-02-11

申请号：EP13151802.9

申请日：2013-01-18

Applicant: Freescale Semiconductor, Inc.

Inventor： Ahmed, Abdulrhman ,  Bokatius, Mario M. ,  Hart, Paul R. ,  Staudinger, Joseph ,  Sweeney, Richard E.

IPC: H03F1/02 ,  H03F3/21 ,  H03F3/60 ,  H03F3/68 ,  G06G7/10

CPC classification number: H03F1/0288 ,  G06F13/4282 ,  G06G7/10 ,  H03F3/189 ,  H03F3/19 ,  H03F3/211 ,  H03F3/602 ,  H03F3/68 ,  H03F2200/387 ,  H03F2200/438 ,  H03F2200/451 ,  H03F2203/21106 ,  H03F2203/21193 ,  H03G1/0088 ,  H03G2201/106 ,  H04L7/0079 ,  H04L27/22

Abstract: An adjustable power splitter (101) includes: a power divider (105) with an input (107) and a first and second divider output (109, 111); a first adjustable phase shifter (113) and first adjustable attenuator (115) series coupled to the first divider output (109) and providing a first power output (117); and a second adjustable phase shifter (119) and second adjustable attenuator (121) series coupled to the second divider output (111) and providing a second power output (123).

公开(公告)号：WO2018128764A1

公开(公告)日：2018-07-12

申请号：PCT/US2017/066246

申请日：2017-12-14

Applicant: QUALCOMM INCORPORATED

Inventor： HANAFI, Bassel ,  ABDELHALEM, Sherif ,  LAKDAWALA, Hasnain

IPC: H03F3/193 ,  H03F3/26 ,  H03F1/22 ,  H03F1/56 ,  H03F3/21 ,  H03F3/24 ,  H03F3/68 ,  H03F3/72 ,  H03G3/30

CPC classification number: H03G1/0005 ,  H03F1/0205 ,  H03F1/223 ,  H03F1/56 ,  H03F3/19 ,  H03F3/193 ,  H03F3/21 ,  H03F3/211 ,  H03F3/245 ,  H03F3/265 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/213 ,  H03F2200/222 ,  H03F2200/231 ,  H03F2200/294 ,  H03F2200/42 ,  H03F2200/451 ,  H03F2200/546 ,  H03G1/0017 ,  H03G3/3052 ,  H03G2201/103 ,  H03G2201/106

Abstract: Certain aspects of the present disclosure generally relate to a multi-output amplifier (400) implemented using a capacitive attenuator (414). For example, the multi-output amplifier (400) generally includes a first capacitive attenuator (414) coupled to an input node of the multi-output amplifier (400). In certain aspects, the multi-output amplifier (400) also includes a first amplification stage (416) having an input coupled to a tap node of the first capacitive attenuator (414) and an output coupled to a first output node of the multi-output amplifier (400), and a second amplification stage (418) having an output coupled to a second output node of the multi-output amplifier (400). For certain aspects, the multi-output amplifier includes a second capacitive attenuator coupled to the input node of the multi-output amplifier, and the second amplification stage has an input coupled to a tap node of the second capacitive attenuator.