公开(公告)号：EP2348632A1

公开(公告)日：2011-07-27

申请号：EP10197011.9

申请日：2010-12-24

Applicant: STMicroelectronics SA

Inventor： Martineau, Baudouin ,  Richard, Olivier

IPC: H03F3/193

CPC classification number: H03F3/193

Abstract: L'invention concerne un amplificateur cascode comportant au moins deux étages déphaseurs commandables (7 j ) entre un transistor d'entrée (M61) dont une borne de commande est connectée à une borne d'entrée (62) de l'amplificateur, et une borne de sortie (66) de l'amplificateur.

Abstract translation: 放大器（PSi）具有可在放大器的输入晶体管（M61）和输出端子（66）之间控制的两个相移级（7j）。 输入晶体管包括连接到放大器的输入端（62）的控制端。 每个相移级包括与输出端子和输入晶体管之间的延迟元件串联连接的增益元件（72j），其中输入晶体管是公共源金属氧化物半导体晶体管或共射极双极晶体管。

公开(公告)号：EP1962418B1

公开(公告)日：2011-06-29

申请号：EP08002818.6

申请日：2008-02-15

Applicant: NTT DOCOMO, INC.

Inventor： Suzuki, Yasunori ,  Narahashi, Shoichi

IPC: H03F3/193

CPC classification number: H03F3/193

公开(公告)号：EP2165415A1

公开(公告)日：2010-03-24

申请号：EP07769043.6

申请日：2007-07-05

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： LEJON, Thomas

IPC: H03F3/217 ,  H03F1/02

CPC classification number: H03F3/217 ,  H03F3/193 ,  H03F3/2176 ,  H03F2200/91

Abstract: The present invention concerns an amplifying device arranged to receive an input signal having a certain duty cycle. The amplifying device comprise a first switching unit having an input terminal adapted to receive a first half of the input signal, and an output terminal adapted to be connected to a first signal output where a first half of an output signal is provided. The amplifying device comprise a second switching unit having an input terminal adapted to receive a second half of the input signal and an output terminal adapted to be connected to a second signal output where a second half of the output signal is provided. Also, the first switching unit and the second switching units are adapted to receive an input signal, wherein the first half of said input signal has the same duty cycle as the second half of the input signal but shifted in phase. The present invention also concerns a wireless transceiver and a radio transmission device.

Abstract translation: 本发明涉及一种放大装置，用于接收具有特定占空比的输入信号。 放大装置包括第一开关单元和第二开关单元，第一开关单元具有适于接收输入信号的第一半的输入端子和适于连接到第一信号输出的输出端子，其中第一半输出信号被提供。 放大装置包括第二开关单元，该第二开关单元具有适于接收输入信号的第二半的输入端子和适于连接到第二信号输出的输出端子，其中输出信号的第二半被提供。 而且，第一开关单元和第二开关单元适于接收输入信号，其中所述输入信号的前半部分与输入信号的后半部分具有相同的占空比，但是同相移动。 本发明还涉及无线收发器和无线电传输装置。

公开(公告)号：EP1990913A2

公开(公告)日：2008-11-12

申请号：EP08251625.3

申请日：2008-05-07

Applicant: Seiko Epson Corporation

Inventor： Nimura, Yoshihiko c/o Seiko Epson Corporation

IPC: H03G3/30

CPC classification number: H03G3/3063 ,  H03F1/342 ,  H03F3/193 ,  H03F3/45475 ,  H03F2203/45138 ,  H03H11/245

Abstract: A receiver circuit includes an attenuator that receives a received signal and attenuates the received signal, a DC level shifter that shifts a DC level of an attenuated signal from the attenuator, an amplifier section that has frequency characteristics of a band-pass filter and amplifies a signal from the DC level shifter that has been shifted with respect to the DC level, and a control circuit that controls an attenuation of the attenuator based on a signal output from the amplifier section. The control circuit controls the attenuation of the attenuator by changing filter characteristics of the attenuator corresponding to an amplitude of the signal output from the amplifier section so that the signal output from the amplifier section has a constant amplitude even when an amplitude of the received signal has changed.

Abstract translation: 接收机电路包括：接收接收信号并衰减接收信号的衰减器，将来自衰减器的衰减信号的直流电平移位的直流电平移位器;具有带通滤波器的频率特性的放大器部分， 来自已经相对于DC电平移位的DC电平移位器的信号，以及控制电路，其基于从放大器部分输出的信号来控制衰减器的衰减。 控制电路通过改变对应于从放大器部分输出的信号的振幅的衰减器的滤波器特性来控制衰减器的衰减，使得即使接收信号的幅度具有恒定幅度，从放大器部分输出的信号也具有恒定幅度 改变。

公开(公告)号：EP1413054B1

公开(公告)日：2008-10-15

申请号：EP02752044.4

申请日：2002-06-13

Applicant: Fairchild Semiconductor Corporation

Inventor： MCPARTLIN, Michael ,  DEFALCO, John, A.

IPC: H03F3/195 ,  H03F3/193 ,  H03F1/30

CPC classification number: H03F1/302 ,  H01L25/18 ,  H01L2924/0002 ,  H01L2924/3011 ,  H03F1/301 ,  H03F3/191 ,  H03F3/193 ,  H03F3/211 ,  H03F3/345 ,  H01L2924/00

Abstract: An amplifier having a two different single crystal semiconductor substrates. A first one of the substrates has formed thereon at least one input signal amplifying device, such device comprising a bipolar transistor. A second one of the substrates is a material different from the material of the first substrate. A current mirror is included. The current mirror includes a plurality of electrically interconnected active devices, one portion of the devices being bipolar devices formed on the first substrate and another portion of the active devices comprising an insulated gate field effect transistor formed on the second substrate. The first single crystal substrate is III-IV material and the second single crystal substrate is silicon. The bipolar devices are HBTs. The insulated gate field effect transistor is a MOS device. This configuration minimizes the effect of temperature, voltage and process variations on critical transistor operating currents.

公开(公告)号：EP1961114A2

公开(公告)日：2008-08-27

申请号：EP06831718.9

申请日：2006-12-14

Applicant: Dibcom

Inventor： JÖNSSON, Jonas ,  SANDEN, Martin

IPC: H03F3/193 ,  H03F1/26 ,  H03F3/45

CPC classification number: H03F3/193 ,  H03F1/26 ,  H03F3/45183 ,  H03F2200/372 ,  H03F2203/45704 ,  H03F2203/45706

Abstract: This amplifier (10) for radio frequency signals comprises a circuit adapted to amplify the signals within a first range of frequency (19) and is characterized in that said circuit is also adapted to simultaneously attenuate the signals within a second range of frequency. (18)

Abstract translation: 用于射频信号的放大器（10）包括适于放大频率（19）的第一范围内的信号的电路，其特征在于所述电路还适于同时衰减频率（18）的第二范围内的信号， 。

公开(公告)号：EP1916774A1

公开(公告)日：2008-04-30

申请号：EP06445069.5

申请日：2006-10-27

Applicant: Laird Technologies AB

Inventor： Von Arbin, Axel ,  Kaikkonen, Andrei ,  Lindberg, Peter

IPC: H04B1/18

CPC classification number: H04B1/18 ,  H03F1/223 ,  H03F1/26 ,  H03F3/193 ,  H03F2200/241 ,  H03F2200/294 ,  H03F2200/451

Abstract: An antenna device for a portable radio communication device adapted for receiving radio signals comprises a radiating element (10) and an amplifier stage (30) with a transistor (31) with a gate, a source, and a drain, said transistor having a minimum noise figure below 1 dB and a gain above 15 dB in the first operating frequency band. The source of the transistor is connected directly to ground. By providing a transistor with these characteristics in this way, stable operation is achieved with high gain amplification.

Abstract translation: 一种用于接收无线电信号的便携式无线电通信设备的天线装置包括具有栅极，源极和漏极的晶体管（31）的辐射元件（10）和放大器级（30），所述晶体管具有最小值 第一个工作频段的噪声系数低于1 dB，增益高于15 dB。 晶体管的源极直接连接到地。 通过以这种方式提供具有这些特性的晶体管，通过高增益放大实现稳定的操作。

公开(公告)号：EP1914886A1

公开(公告)日：2008-04-23

申请号：EP06301062.3

申请日：2006-10-19

Applicant: Alcatel Lucent

Inventor： Wiegner, Dirk ,  Nass, Tobias

IPC: H03F1/48 ,  H03F1/56 ,  H03F1/02

CPC classification number: H03F1/56 ,  H03F1/0222 ,  H03F1/0266 ,  H03F1/483 ,  H03F3/193 ,  H03F2200/102 ,  H03F2200/111 ,  H03F2200/213 ,  H03F2200/222 ,  H03F2200/228 ,  H03F2200/252 ,  H03F2200/378 ,  H03F2200/387 ,  H03F2200/421 ,  H03F2200/451

Abstract: In order to improve the performances of an amplifier across a broad range of frequencies, the input matching network (16), and optionally the output matching network (36), comprise/s a plurality of individually selectable sub networks. Each sub network comprises a switching element (S1-S3) and a matching element (M1-M3) comprising preferably a capacitor. Depending on the desired operating frequency, one of the switching elements is turned ON while the other switching elements remain OFF.
To improve the efficiency, it is furthermore suggested to regulate (18) the supply voltage and/or bias voltage of the amplifying transistor (14) in response to the detected (20) envelope signal of the input signal to be amplified.

Abstract translation: 为了改善放大器在宽频率范围内的性能，输入匹配网络（16）和可选地输出匹配网络（36）包括多个可单独选择的子网络。 每个子网络包括优选地包括电容器的开关元件（S1-S3）和匹配元件（M1-M3）。 根据期望的工作频率，其中一个开关元件接通，而另一个开关元件保持OFF。 为了提高效率，还建议响应于要被放大的输入信号的检测到的（20）包络信号来调节（18）放大晶体管（14）的电源电压和/或偏置电压。

公开(公告)号：EP1833161A1

公开(公告)日：2007-09-12

申请号：EP07103382.3

申请日：2007-03-02

Applicant: Integrant Technologies Inc.

Inventor： Kim, Tae Wook ,  Yoo, Hee yong ,  Kim, Bonkee ,  Jeong, Minsu

IPC: H03F1/32 ,  H03F3/21

CPC classification number: H03F1/301 ,  H03F3/193 ,  H03F3/68

Abstract: The present invention relates to an amplifier and, more particularly, to an adaptive linear amplifier (200) with low power consumption and a high linearity. The adaptive linear amplifier (200) according to the present invention comprises amplification means (210) and a bias controller (230). The amplification means (210) comprises a main transistor (MN 21 ) and an auxiliary transistor unit (211). The main transistor (MN 21 ) and the auxiliary transistor unit (211) are coupled to each other. The bias controller (230) controls a bias Voltage applied to the main transistor (MN 21 ) and the auxiliary transistor unit (211).

Abstract translation: 本发明涉及放大器，更具体地，涉及一种具有低功耗和高线性度的自适应线性放大器（200）。 根据本发明的自适应线性放大器（200）包括放大装置（210）和偏置控制器（230）。 放大装置（210）包括主晶体管（MN 21）和辅助晶体管单元（211）。 主晶体管（MN 21）和辅助晶体管单元（211）彼此耦合。 偏置控制器（230）控制施加到主晶体管（MN 21）和辅助晶体管单元（211）的偏置电压。

公开(公告)号：EP1794891A1

公开(公告)日：2007-06-13

申请号：EP05791608.2

申请日：2005-08-29

Applicant: WiLinx, Inc. ,  Bagheri, Rahim ,  Djafari, Masoud ,  Atri, Mahnaz

Inventor： BAGHERI, Rahim ,  DJAFARI, Masoud ,  ATRI, Mahnaz

IPC: H04B1/04 ,  G06F7/44

CPC classification number: H03F3/193 ,  H03F2200/294 ,  H03F2200/372 ,  H04B1/18

Abstract: Embodiments of the present invention include circuits for use in wireless receivers that provide wide band matching with improved gain and noise performance. In one embodiment, the present invention includes a wireless receiver comprising an antenna, a first transistor having a source coupled to the antenna, a second transistor having a gate coupled to the antenna and a network comprising a first terminal coupled to the antenna, a second terminal coupled to the source of the first transistor and a third terminal coupled to the gate of the second transistor, wherein the network has a transimpedance between the second and third terminals so that noise generated by the first transistor is differentially rejected by the system across a predetermined range of frequencies.