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    A FULLY DIFFERENTIAL, VARIABLE-GAIN AMPLIFIER AND A MULTIDIMENSIONAL AMPLIFIER ARRANGEMENT
    81.
    发明公开
    A FULLY DIFFERENTIAL, VARIABLE-GAIN AMPLIFIER AND A MULTIDIMENSIONAL AMPLIFIER ARRANGEMENT 有权
    具有可变增益和多维放大器装置的全平衡放大

    公开(公告)号：EP1352466A2

    公开(公告)日：2003-10-15

    申请号：EP01273146.9

    申请日：2001-12-12

    申请人： Koninklijke Philips Electronics N.V.

    发明人： SANDULEANU, Mihai, A., T.

    IPC分类号： H03F1/00

    CPC分类号： H03F1/486 ,  H03F1/48 ,  H03F3/3432 ,  H03F3/4508 ,  H03F2200/36

    摘要： A fully differential, variable gain amplifier comprising an input, an intermediate stage and an output stage, the input stage (100) being coupled to the intermediate stage (200) and the intermediate stage being coupled to the output stage (300). The input stage comprises an amplifier with local feedback means and voltage-to-current conversion means. The intermediate stage has nodes that are shared by the input stage, the output stage and the intermediate stage, respectively, which are connected to the reference node via a relatively low impedance branch. The intermediate stage further comprises current controlled networks coupled to the common nodes via a first feedback branches and branches to the input stage via second feedback branches. The amplifier has means for controlling the gain and the bandwidth independently of one another.

    HIGH BANDWIDTH AMPLIFIER
    84.
    发明公开
    HIGH BANDWIDTH AMPLIFIER 审中-公开
    高带宽放大器

    公开(公告)号：EP3254374A1

    公开(公告)日：2017-12-13

    申请号：EP15709101.8

    申请日：2015-02-04

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： MASTANTUONO, Daniele ,  MATTISSON, Sven

    IPC分类号： H03F1/22 ,  H03F1/08 ,  H03F3/193

    CPC分类号： H03F1/42 ,  H03F1/08 ,  H03F1/223 ,  H03F3/19 ,  H03F3/193 ,  H03F3/605 ,  H03F3/68 ,  H03F2200/36 ,  H03F2200/451

    摘要： An amplifier (100) comprising: first, second, third and fourth transistors (M1, M2, M3, M4), an input (10) for an input signal, and a first output (22) for a first amplified signal; a first terminal (T11) of the first transistor (M1) coupled to a first voltage rail (12), a second terminal (T12) of the first transistor (M1) coupled to a first terminal (T31) of the third transistor (M3), and a gate (G1) of the first transistor (M1) coupled to the input (10); a first terminal (T21) of the second transistor (M2) coupled to a second voltage rail (14), a second terminal (T22) of the second transistor (M2) coupled to the first output (22), and a gate (G2) of the second transistor (M2) coupled to the input (10); a load (40) coupled between a second terminal (T32) of the third transistor (M3) and a third voltage rail (20), and a gate (G3) of the third transistor (M3) coupled to a bias node (16) for applying a bias voltage to the gate (G3) of the third transistor (M3); a first terminal (T41) of the fourth transistor (M4) coupled to the first output (22), a second terminal (T42) of the fourth transistor (M4) coupled to a fourth voltage rail (24), and a gate (G4) of the fourth transistor (M4) coupled to the second terminal (T32) of the third transistor (M3); and a first capacitive element (C1) coupled between the second terminal (T32) of the third transistor (M3) and the first output (22).

    Ultra wideband doherty amplifier
    85.
    发明授权
    Ultra wideband doherty amplifier 有权
    超宽带多赫蒂放大器

    公开(公告)号：EP2933918B1

    公开(公告)日：2017-11-22

    申请号：EP14175618.9

    申请日：2014-07-03

    申请人： Ampleon Netherlands B.V.

    发明人： Moronval, Xavier ,  Bouny, Jean-Jacques ,  Bouisse, Gerard

    IPC分类号： H03F1/02 ,  H03F3/19

    CPC分类号： H03F1/0288 ,  H03F3/19 ,  H03F2200/301 ,  H03F2200/36 ,  H03F2200/451 ,  H04W88/08

    摘要： A Doherty amplifier (100) for amplifying an input signal to an output signal, the Doherty amplifier (100) comprising: a main amplifier (110) for receiving a first signal and for amplifying the first signal to generate a first amplified signal; a first peak amplifier (112) for receiving a second signal and for generating a second amplified signal, the first peak amplifier (112) only operating when the second signal has reached a first threshold power, the first and second signal split from the input signal; and output circuitry (106) to combine the first and second amplified signals to generate an output signal having an operating bandwidth, the output circuitry (106) comprising inductors (124, 126) arranged in the format of a branch line coupler, the inductors (124, 126) coupled to the output parasitic capacitances of the main (110) and peak amplifier (112).

    WIDEBAND RADIO FREQUENCY POWER AMPLIFIER
    86.
    发明公开
    WIDEBAND RADIO FREQUENCY POWER AMPLIFIER 审中-公开
    宽带无线电频率功率放大器

    公开(公告)号：EP3195471A1

    公开(公告)日：2017-07-26

    申请号：EP15777743.4

    申请日：2015-09-17

    申请人： Mitsubishi Electric Corporation

    发明人： MA, Rui ,  CHUNG, SungWon ,  TEO, Koon Hoo

    IPC分类号： H03F1/02 ,  H03F3/189

    CPC分类号： H03F1/0205 ,  H03F1/0211 ,  H03F1/42 ,  H03F1/565 ,  H03F3/189 ,  H03F3/19 ,  H03F3/21 ,  H03F2200/102 ,  H03F2200/36 ,  H03F2200/451

    摘要： A wideband self-envelope tracking power amplifier (PA) can use more than a 40-MHz channel bandwidth and improves the envelope bandwidth limit of a self-envelope tracking PAs by ten times. The PA uses an envelope load network, which is based on a general multi-stage low-pass filter. The envelope load network located between an RF choke inductor and main DC power supply provides a dynamically modulated PA supply voltage without using a dedicated envelope amplifier. An input terminal of the network connects a main PA via an RF choke inductor to an input of low-pass filter. An output terminal is connected to the low-pass filter via an envelope choke inductor and to a direct current (DC) power supply. A DC blocker is connected between the output of the low-pass filter and ground by a termination resistor.

    摘要翻译： 宽带自包络跟踪功率放大器（PA）可以使用超过40-MHz的信道带宽，并将自包络跟踪PA的包络带宽限制提高10倍。 功率放大器使用包络负载网络，该网络基于通用的多级低通滤波器。 位于RF扼流圈电感器和主DC电源之间的包络负载网络提供动态调制的PA电源电压，而无需使用专用的包络放大器。 网络的输入端子通过RF扼流线圈将主PA连接到低通滤波器的输入端。 输出端通过包络扼流圈电感器连接到低通滤波器并连接到直流（DC）电源。 直流阻断器通过端接电阻连接在低通滤波器的输出和地之间。

    Integrated 3-way doherty amplifier
    90.
    发明公开
    Integrated 3-way doherty amplifier 有权
    Integrierter 3-Weg-Doherty-Verstärker

    公开(公告)号：EP2983291A1

    公开(公告)日：2016-02-10

    申请号：EP14290235.2

    申请日：2014-08-07

    申请人： Samba Holdco Netherlands B.V.

    发明人： Moronval, Xavier ,  Bouny, Jean-Jacques ,  Bouisse, Gerard

    IPC分类号： H03F1/02 ,  H03F3/195 ,  H03F1/56 ,  H03F3/24

    CPC分类号： H03F1/0288 ,  H01L23/66 ,  H01L2223/6611 ,  H01L2223/6644 ,  H03F1/565 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/225 ,  H03F2200/36 ,  H03F2200/391 ,  H03F2200/408

    摘要： A die is described comprising at least one 3-way Doherty amplifier (100) comprising a main stage (120), a first peak stage (130) and a second peak stage(140). An input network (110) includes a first impedance connected to an input of the first peak stage (130) and providing a -90° phase shift and a second impedance connected to an input of the second peak stage (140) and providing a 90° phase shift. An output network (150) includes a third impedance connected to the output of the first peak stage (130) and providing a 180° phase shift and a fourth impedance connected to the output of the main stage (120) and providing a 90° phase shift.

    摘要翻译： 描述了包括至少一个包括主级（120），第一峰值级（130）和第二级级（140）的3路Doherty放大器（100）的管芯。 输入网络（110）包括连接到第一峰值级（130）的输入并提供-90°相移的第一阻抗和连接到第二峰值级（140）的输入的第二阻抗，并且提供90 °相移。 输出网络（150）包括连接到第一峰值级（130）的输出并提供180°相移和连接到主级（120）的输出的第四阻抗并提供90°相位的第三阻抗 转移。