专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO9910987A2 PREDISTORTION LINEARIZER CIRCUIT 审中-公开
标题翻译：预条件线性化电路
公开(公告)号：WO9910987A2
公开(公告)日：1999-03-04
申请号：PCT/FI9800649
申请日：1998-08-24
申请人： INSINOEOERITOIMISTO JUHANA YLI , KANGASLAHTI PEKKA , KALAJO SAMI
发明人： KANGASLAHTI PEKKA , KALAJO SAMI
IPC分类号： H03F1/32 , H04B1/62 , H04B3/04
CPC分类号： H03F1/3276 , H04B1/62
摘要： A predistortion linearizer circuit comprising an amplitude distorting part (AM/AM) and a phase distorting part (AM/PM). At least the phase distorting part (AM/PM) comprises broadband biasing means (51) and a non-linear transmission line (L51/D51 to L55/D55) responsive to them. The biasing means (51) are arranged to bias the non-linear transmission line (L51/D51 to L55/D55) to a substantially phase distorting area. The characteristics of the circuit can be changed by adjusting a biasing voltage (VB1) or by switching some of the diodes (D54, D55) inactive by activation signals (VA1, VA2). The amplitude distorting part (AM/AM) and the phase distorting part (AM/PM) can be similar in structure, but the diodes (D51 to D55) are partly forward-biased, whereby the losses caused by them decrease the amplitude of the signal.
摘要翻译：一种包括幅度失真部分（AM / AM）和相位失真部分（AM / PM）的预失真线性化电路。至少相位失真部分（AM / PM）包括宽带偏置部件（51）和响应它们的非线性传输线（L51 / D51至L55 / D55）。偏置装置（51）被设置成将非线性传输线（L51 / D51至L55 / D55）偏置到基本上相位失真的区域。通过调节偏置电压（VB1）或通过将一些二极管（D54，D55）通过激活信号（VA1，VA2）切换为无效，可以改变电路的特性。振幅失真部分（AM / AM）和相位失真部分（AM / PM）的结构可以相似，但二极管（D51至D55）部分正向偏置，由此造成的损耗减小信号。

2. 发明申请

WO9910987A9 PREDISTORTION LINEARIZER CIRCUIT 审中-公开
标题翻译：预测线性化电路
公开(公告)号：WO9910987A9
公开(公告)日：1999-06-24
申请号：PCT/FI9800649
申请日：1998-08-24
申请人： INSINOEOERITOIMISTO JUHANA YLI , KANGASLAHTI PEKKA , KALAJO SAMI
发明人： KANGASLAHTI PEKKA , KALAJO SAMI
IPC分类号： H03F1/32 , H04B1/62 , H04B3/04
CPC分类号： H03F1/3276 , H04B1/62
摘要： A predistortion linearizer circuit comprising an amplitude distorting part (AM/AM) and a phase distorting part (AM/PM). At least the phase distorting part (AM/PM) comprises broadband biasing means (51) and a non-linear transmission line (L51/D51 to L55/D55) responsive to them. The biasing means (51) are arranged to bias the non-linear transmission line (L51/D51 to L55/D55) to a substantially phase distorting area. The characteristics of the circuit can be changed by adjusting a biasing voltage (VB1) or by switching some of the diodes (D54, D55) inactive by activation signals (VA1, VA2). The amplitude distorting part (AM/AM) and the phase distorting part (AM/PM) can be similar in structure, but the diodes (D51 to D55) are partly forward-biased, whereby the losses caused by them decrease the amplitude of the signal.
摘要翻译：包括幅度失真部分（AM / AM）和相位失真部分（AM / PM）的预失真线性化电路。至少相位失真部分（AM / PM）包括响应于它们的宽带偏置装置（51）和非线性传输线（L51 / D51至L55 / D55）。偏置装置（51）被布置成将非线性传输线（L51 / D51至L55 / D55）偏置到基本相位失真区域。通过调节偏置电压（VB1）或者通过激活信号（VA1，VA2）使一些二极管（D54，D55）无效来改变电路的特性。振幅失真部分（AM / AM）和相位失真部分（AM / PM）的结构可能相似，但二极管（D51〜D55）部分正向偏置，由此造成的损耗降低了信号。

3. 发明申请

WO2005022740A3 METHOD AND APPARATUS PROVIDING INTEGRATED LOAD MATCHING USING ADAPTIVE POWER AMPLIFIER COMPENSATION 审中-公开
公开(公告)号：WO2005022740A3
公开(公告)日：2005-03-10
申请号：PCT/IB2004/002631
申请日：2004-08-12
申请人： NOKIA CORPORATION , NOKIA, INC. , RF MICRO DEVICES, INC. , KALAJO, Sami , JARVINEN, Esko , VINTOLA, Ville , TAMBORINO, Frank, Anthony , KOPP, William, Sheridan
发明人： KALAJO, Sami , JARVINEN, Esko , VINTOLA, Ville , TAMBORINO, Frank, Anthony , KOPP, William, Sheridan
IPC分类号： H01Q11/12
摘要： An RF power amplifier module can be used without a matching device between the power amplifier module and an antenna. The power amplifier module is constructed and operated to detect, protect and maintain the performance of the power amplifier in the presence of severe VSWR load mismatches, without requiring the use of external circuitry. The RF power amplifier module includes integral detection circuitry for generating a first detection signal having a value that is indicative of the current flowing through an output power transistor and a second detection signal having a value that is indicative the voltage appearing at the output of the output power transistor, as well as integral compensation circuitry for controlling the generation of a plurality of bias current and bias voltage signals to have values that are a function of the values of the first and second detection signals, as well as the current output power level of the RF power amplifier module. Also included is an integral impedance matching circuit, coupled between the output of the output transistor and the output node,. that provides a variable impedance that is selectively controlled by an output signal from the compensation circuitry.

4. 发明申请

WO2012084037A1 CIRCUIT ARRANGEMENT FOR RF LOOPBACK 审中-公开
标题翻译： RF环路的电路布置
公开(公告)号：WO2012084037A1
公开(公告)日：2012-06-28
申请号：PCT/EP2010/070541
申请日：2010-12-22
申请人： EPCOS AG , LEHTONEN, Pasi , PELLIKKA, Harri , ALANEN, Marko , TIKKA, Pasi , KALAJO, Sami , IKONEN, Pekka
发明人： LEHTONEN, Pasi , PELLIKKA, Harri , ALANEN, Marko , TIKKA, Pasi , KALAJO, Sami , IKONEN, Pekka
IPC分类号： H04B1/48 , H04B17/00
CPC分类号： H04B17/14 , H04B1/48 , H04B17/21
摘要： In one embodiment a circuit arrangement comprises a transceiver unit (TU), a switching device (SW) coupled to the transceiver unit (TU) with a terminal (10) which is configured to be coupled to an antenna device (AD), a control device (CD) coupled to the switching device (SW), the control device (CD) being configured to operate the circuit arrangement in a first and in a second mode of operation, wherein in the first mode of operation, the switching device (SW) is configured by the control device (CD) such that a first signal is routed from the transceiver unit (TU) via the switching device (SW) back to the transceiver unit (TU) in a feedback loop, and in the second mode of operation, the switching device (SW) is configured by the control device (CD) such that a second signal is routed from the transceiver unit (TU) via the switching device (SW) to the terminal (10) or the second signal is routed from the terminal (10) via the switching device (SW) to the transceiver unit (TU).
摘要翻译：在一个实施例中，电路装置包括收发器单元（TU），耦合到收发器单元（TU）的开关装置（SW），其中终端（10）被配置为耦合到天线装置（AD），控制装置（CD），所述控制装置（CD）被配置为以第一和第二操作模式操作所述电路装置，其中在所述第一操作模式中，所述开关装置（SW））由控制装置（CD）配置，使得第一信号经由开关装置（SW）从收发器单元（TU）以反馈回路路由到收发器单元（TU），并且在第二模式开关装置（SW）由控制装置（CD）配置，使得第二信号经由开关装置（SW）从收发器单元（TU）路由到终端（10），或者第二信号被路由从终端（10）经由交换设备（SW）到收发器单元（TU）。

5. 发明申请

WO2005022740A2 METHOD AND APPARATUS PROVIDING INTEGRATED LOAD MATCHING USING ADAPTIVE POWER AMPLIFIER COMPENSATION 审中-公开
标题翻译：使用自适应功率放大器补偿提供集成负载匹配的方法和装置
公开(公告)号：WO2005022740A2
公开(公告)日：2005-03-10
申请号：PCT/IB2004002631
申请日：2004-08-12
申请人： NOKIA CORP , NOKIA INC , KALAJO SAMI , JARVINEN ESKO , VINTOLA VILLE
发明人： KALAJO SAMI , JARVINEN ESKO , VINTOLA VILLE
IPC分类号： H01Q11/12 , H03C1/62 , H03F20060101 , H03F1/02 , H03F1/56 , H03F3/191 , H03F3/24 , H03H7/40 , H03H11/30 , H04B1/04 , H04B17/00 , H03F
CPC分类号： H03F1/56 , H03F1/0261 , H03F1/0272 , H03F3/191 , H03F3/24 , H03F2200/207 , H03F2200/321 , H03F2200/387 , H03F2200/411 , H03F2200/451 , H03F2200/462 , H03F2200/471 , H03F2200/99 , H03H7/40 , H03H11/30 , H04B1/0458
摘要： An RF power amplifier module can be used without a matching device between the power amplifier module and an antenna. The power amplifier module is constructed and operated to detect, protect and maintain the performance of the power amplifier in the presence of severe VSWR load mismatches, without requiring the use of external circuitry. The RF power amplifier module includes integral detection circuitry for generating a first detection signal having a value that is indicative of the current flowing through an output power transistor and a second detection signal having a value that is indicative the voltage appearing at the output of the output power transistor, as well as integral compensation circuitry for controlling the generation of a plurality of bias current and bias voltage signals to have values that are a function of the values of the first and second detection signals, as well as the current output power level of the RF power amplifier module. Also included is an integral impedance matching circuit, coupled between the output of the output transistor and the output node,. that provides a variable impedance that is selectively controlled by an output signal from the compensation circuitry.
摘要翻译： RF功率放大器模块可以在功率放大器模块和天线之间没有匹配装置的情况下使用。在不需要使用外部电路的情况下，功率放大器模块被构造和操作以在存在严重的VSWR负载不匹配的情况下检测，保护和维持功率放大器的性能。 RF功率放大器模块包括积分检测电路，用于产生具有指示流过输出功率晶体管的电流的值的第一检测信号和具有指示出现在输出端的输出端的电压的值的第二检测信号功率晶体管，以及用于控制多个偏置电流和偏置电压信号的产生的积分补偿电路，以具有作为第一和第二检测信号的值的函数的值以及当前的输出功率电平 RF功率放大器模块。还包括耦合在输出晶体管的输出端和输出节点之间的积分阻抗匹配电路。其提供由来自补偿电路的输出信号选择性地控制的可变阻抗。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式