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1. 发明申请

WO2010000643A1 SINGLE ENDED MULTIBAND FEEDBACK LINEARIZED RF AMPLIFIER AND MIXER WITH DC-OFFSET AND IM2 SUPPRESSION FEEDBACK LOOP 审中-公开
标题翻译：单端多功能反馈线性放大器和具有直流偏移和IM2抑制反馈环路的混频器
公开(公告)号：WO2010000643A1
公开(公告)日：2010-01-07
申请号：PCT/EP2009/057789
申请日：2009-06-23
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , TIRED, Tobias
发明人： TIRED, Tobias
IPC分类号： H04B1/30 , H03D3/00
CPC分类号： H04B1/30 , H03D3/008 , H03D7/1433 , H03D7/145 , H03D7/1458 , H03D7/1491 , H03D2200/0025 , H03D2200/0043 , H03D2200/0088 , H03D2200/009
摘要： A receiver arrangement includes a single ended multiband feedback amplifier, at least one single ended input, differential output mixer arrangement including a main mixer and a trim mixer, and a mixer feedback loop circuit configured to receive differential output signals generated by the mixer arrangement. The mixer feedback loop circuit generates a feedback signal based on the received differential output signals and provides the feedback signal to the mixer arrangement to minimize DC-offset and second order intermodulation products. The single ended multiband feedback amplifier may include an input stage and a programmable resonance tank circuit connected to the input stage for suppressing downconverted noise from harmonics of the LO-frequency, and a configurable feedback net that shapes the frequency response of a feedback loop including the feedback net based on a band operation of the single ended multiband feedback amplifier.
摘要翻译：接收器装置包括单端多波段反馈放大器，至少一个单端输入，差分输出混频器装置，包括主混频器和调谐混频器，以及配置成接收由混频器装置产生的差分输出信号的混频器反馈回路电路。混频器反馈回路电路基于接收的差分输出信号产生反馈信号，并将反馈信号提供给混频器装置，以最小化DC偏移和二阶互调产物。单端多波段反馈放大器可以包括连接到输入级的输入级和可编程谐振槽电路，用于抑制来自LO频率的谐波的下变频噪声;以及可配置反馈网，其对包括基于单端多频带反馈放大器的频带操作的反馈网。

2. 发明申请

WO2008018033A3 SIGNAL PROCESSOR COMPRISING A FREQUENCY CONVERTER 审中-公开
标题翻译：包含频率转换器的信号处理器
公开(公告)号：WO2008018033A3
公开(公告)日：2008-04-03
申请号：PCT/IB2007053137
申请日：2007-08-08
申请人： NXP BV , VAN ZEIJL PAULUS T M , DE JONG GERBEN W , JEURISSEN DENNIS
发明人： VAN ZEIJL PAULUS T M , DE JONG GERBEN W , JEURISSEN DENNIS
IPC分类号： H03D7/14
CPC分类号： H03D7/166 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D7/1483 , H03D7/165 , H03D2200/0025
摘要： A signal processor includes a frequency converter of the multiphase type. A first phase mixer (SWC1, TIS1) has a pair of switches (M11, M12). A second phase mixer (SWC2, TIS2) also has a pair of switches (M21, M22). The pair of switches of the first phase mixer and the pair of switches of the second phase mixer have a joint common switch node (CN1). A local oscillator generates an individual mixer driver signal (MD1+, MD1-, MDQ+, MDQ-) for each switch (M11, M12, M21, M22) in the aforementioned pairs. Each individual mixer driver signal comprises periodically occurring pulses, which are phase shifted with respect to the periodically occurring pulses in the other individual mixer driver signals. Preferably, there is substantially no overlap between the periodically occurring pulses in the individual mixer driver signals.
摘要翻译：信号处理器包括多相型变频器。第一相混频器（SWC1，TIS1）具有一对开关（M11，M12）。第二相混频器（SWC2，TIS2）也具有一对开关（M21，M22）。第一相混频器的一对开关和第二相混频器的一对开关具有联合公共开关节点（CN1）。本地振荡器在上述对中为每个开关（M11，M12，M21，M22）产生单独的混频器驱动器信号（MD1 +，MD1，MDQ +，MDQ-）。每个单独的混频器驱动器信号包括相对于其它单独混频器驱动器信号中周期性发生的脉冲相移的周期性发生的脉冲。优选地，各个混频器驱动器信号中周期性发生的脉冲之间基本上不存在重叠。

3. 发明申请

WO2007073259A1 MIXER CIRCUIT AND RF TRANSMITTER USING SUCH MIXER CIRCUIT 审中-公开
标题翻译：使用这种混频器电路的混频器电路和RF发射器
公开(公告)号：WO2007073259A1
公开(公告)日：2007-06-28
申请号：PCT/SE2005/002017
申请日：2005-12-22
申请人： INFINEON TECHNOLOGIES AG , VAN WAASEN, Stefan , LANN, Anna-Maria , STEPHANSSON, Paul , PUSA, Fredrik , DAHLIN, Jan
发明人： VAN WAASEN, Stefan , LANN, Anna-Maria , STEPHANSSON, Paul , PUSA, Fredrik , DAHLIN, Jan
IPC分类号： H03D7/14 , H04B1/04 , H03F3/45 , H03G3/30
CPC分类号： H03D7/1441 , H03D7/1433 , H03D7/1458 , H03D7/165 , H03D2200/0025 , H03D2200/0033 , H03D2200/0084 , H03F1/02 , H03F3/19 , H03F3/24 , H03F3/45188 , H04B2001/045
摘要： The invention relates to a mixer circuit comprising a mixer core 440 for mixing an input frequency signal with a local oscillator signal. The mixer circuit 400 further comprises a variable current block 430 arranged to feed the mixer core 440 with an amplified input signal, said variable current block 430 comprising transistors M100, M101, M102,..., Mn and switches S0, S1, S2,..., Sn enabling provision of a variable current. By means of the invention the current consumption can be reduced by varying the current required in accordance with power output need. The invention also relates to a RF transmitter comprising such mixer circuit.
摘要翻译：本发明涉及一种混频器电路，该混频器电路包括用于将输入频率信号与本地振荡器信号混合的混频器核心440。混频器电路400还包括可变电流块430，其被布置为向混频器核心440馈送放大的输入信号，所述可变电流块430包括晶体管M100，M101，M102，...，Mn以及开关S0，S1，S2， ...，Sn使能提供可变电流。通过本发明，可以通过根据功率输出需要改变所需的电流来减少电流消耗。本发明还涉及一种包括这种混频器电路的RF发射机。

4. 发明申请

WO2007004816A1 VARIABLE GAIN MIXER 审中-公开
标题翻译：可变增益混合器
公开(公告)号：WO2007004816A1
公开(公告)日：2007-01-11
申请号：PCT/KR2006/002555
申请日：2006-06-30
申请人： FCI INC , BECK, Sungho
发明人： BECK, Sungho
IPC分类号： H03D7/10
CPC分类号： H03D7/12 , H03D7/1433 , H03D7/1458 , H03D2200/0019 , H03D2200/0025 , H03D2200/0027 , H03D2200/0043 , H03D2200/0088
摘要： There is provided a variable gain mixer capable of controlling a gain at a low source voltage in a wide range without additional current consumption. The mixer includes: mixers constructed with variable gain amplifiers having two transistor pairs Qp+/Qp- and Qn+/Qn- to have a predetermined gain by using LO+ and LO- signals; and LO bias circuits connected to have bias voltages different from each other with respect to the LO+ and LO signals of the mixers and share an input signal. Accordingly, by integrating the variable gain amplifiers into the mixers, a gain change can be obtained at a low source voltage in a wide range without connecting a number of variable gain amplifiers. In addition, by properly applying the LO signals used in the mixers, the gain change can have a linearity in dB characteristic
摘要翻译：提供了一种可变增益混频器，其能够在宽范围内控制低电源电压下的增益，而无需额外的电流消耗。混频器包括：由具有两个晶体管对Qp + / Qp-和Qn + / Qn-的可变增益放大器构成的混频器通过使用LO +和LO-信号具有预定的增益; 并且LO偏置电路被连接以相对于混频器的LO +和LO信号彼此不同的偏置电压并且共享输入信号。因此，通过将可变增益放大器集成到混频器中，可以在宽范围内的低电源电压下获得增益变化，而不连接多个可变增益放大器。另外，通过适当地应用混频器中使用的LO信号，增益变化可以具有dB特性的线性度

5. 发明申请

WO2006085046A1 LOW INTERMEDIATE FREQUENCY (IF) RADIO RECEIVER CIRCUITS 审中-公开
标题翻译：低频中频（如果）无线电接收器电路
公开(公告)号：WO2006085046A1
公开(公告)日：2006-08-17
申请号：PCT/GB2005/050150
申请日：2005-09-12
申请人： Frontier Silicon Limited , LUFF, Gwilym Francis
发明人： LUFF, Gwilym Francis
IPC分类号： H04B1/28 , H03D7/16
CPC分类号： H04B1/28 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D7/1483 , H03D7/165 , H03D2200/0025
摘要： This invention relates to apparatus and methods for radio receivers, in particular low (IP) frequency receivers. Embodiments of the invention are particularly suitable for digital audio broadcast receivers. A low-IF radio receiver circuit, the circuit comprising: an rf input (202) for a received rf signal: a first local oscillator (208) having a quadrature output to provide a quadrature first local oscillator signal at a first frequency; a quadrature first mixer (206) coupled to said rf input and to said quadrature output of said first local oscillator and having a quadrature first mixer output, and said first mixer and said first local oscillator being configured to provide quadrature mixing of said quadrature first local oscillator signal and said received rf signal to downconvert said received rf signal to a first quadrature IF signal at a first IF frequency; a bandpass filter (210) coupled to said quadrature first mixer output and having a filtered output to provide a bandpass filtered first IF signal; a second local oscillator (214) having a second local oscillator ourput to provide a second local oscillator signal at a second frequency; a second mixer (212) coupled to said filtered output of said bandpass filter and to said second local oscillator and having a second mixer ouput, said second mixer and said second local oscillator being configured to provide mixing of said second local oscillator signal and said bandpass filtered first IF signal to upconvert said bandpass filtered first IF signal to a second IF signal at a second IF freqquency , wherein said second IF frequency is greater than said first IF frequency; and an output coupled to said second mixer output to provide an output signal from said second IF signal.
摘要翻译：本发明涉及无线电接收机，特别是低（IP）频率接收机的装置和方法。本发明的实施例特别适用于数字音频广播接收机。一种低IF无线电接收机电路，所述电路包括：用于接收的rf信号的rf输入（202）：具有正交输出的第一本地振荡器（208），以提供第一频率的正交第一本地振荡器信号; 耦合到所述第一本地振荡器的所述rf输入和所述正交输出的正交第一混频器（206），并具有正交第一混频器输出，所述第一混频器和所述第一本地振荡器被配置为提供所述正交第一局部振荡器信号和所述接收的rf信号，以将所接收的rf信号以第一IF频率下转换成第一正交IF信号; 耦合到所述正交第一混频器输出并且具有滤波输出以提供带通滤波的第一IF信号的带通滤波器（210）具有第二本机振荡器的第二本地振荡器（214），用于以第二频率提供第二本地振荡器信号; 耦合到所述滤波器输出的所述带通滤波器和所述第二本机振荡器并具有第二混频器输出的第二混频器（212），所述第二混频器和所述第二本机振荡器被配置为提供所述第二本机振荡器信号和所述带通经过滤波的第一IF信号，以第二IF频率将所述带通滤波的第一IF信号上变频到第二IF信号，其中所述第二IF频率大于所述第一IF频率; 以及耦合到所述第二混频器输出以提供来自所述第二IF信号的输出信号的输出。

6. 发明申请

WO2006041674A2 INTEGRATED TUNER FOR TERRESTRIAL AND CABLE TELEVISION 审中-公开
标题翻译：集成调谐器用于地面和电缆电视
公开(公告)号：WO2006041674A2
公开(公告)日：2006-04-20
申请号：PCT/US2005034586
申请日：2005-09-29
申请人： PAN JIANPING
发明人： PAN JIANPING
IPC分类号： G11B15/68
CPC分类号： H03J7/02 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D7/1483 , H03D7/1491 , H03D7/163 , H03D7/165 , H03D7/18 , H03D2200/0025 , H03D2200/0047 , H03J7/04 , H04B1/28
摘要： A highly integrated terrestrial and cable tuner for receiving digital and analog television signals is disclosed. It achieves high performances in sensitivity, image rejection, dynamic range, channel selectivity and power consumption. A major-images rejection converter disclosed rejects third- and fifth-order images. Thus it significantly relaxes RF filter design in a tuner of a single-stage or a first-stage zero-IF/low-IF downconversion architecture. Different architectures and frequency planning are disclosed in accordance with specifications of TV standards to improve the overall performance of the tuner with a different or configurable IF output. The tuner is integrated by using standard processes, with minimal off-chip components excluding SAW and LC filters. Small tuner modules cost less than discrete (can) tuners. They can be used in digital/analog TV sets and portable and handheld TV devices and for mobile-phone TV reception.
摘要翻译：公开了用于接收数字和模拟电视信号的高度集成的地面和电缆调谐器。它在灵敏度，图像抑制，动态范围，通道选择性和功耗方面实现了高性能。公开的主要图像拒绝转换器拒绝第三和第五阶图像。因此，它在单级或第一级零中频/低中频下变频架构的调谐器中显着放宽了RF滤波器设计。根据电视标准的规范公开了不同的架构和频率规划，以改进具有不同或可配置的中频输出的调谐器的整体性能。调谐器通过使用标准过程进行集成，除了SAW和LC滤波器之外，还有最少的片外组件。小调谐器模块的成本低于离散（can）调谐器。它们可用于数字/模拟电视机，便携式和手持式电视设备以及手机电视接收中。

7. 发明申请

WO2005027339A1 MIXER CIRCUIT, RECEIVER COMPRISING A MIXER CIRCUIT, METHOD FOR GENERATING AN OUTPUT SIGNAL BY MIXING AN INPUT SIGNAL WITH AN OSCILLATOR SIGNAL 审中-公开
标题翻译：混合电路，包含混频器电路的接收器，通过混合输入信号与振荡器信号产生输出信号的方法
公开(公告)号：WO2005027339A1
公开(公告)日：2005-03-24
申请号：PCT/IB2004/051615
申请日：2004-08-31
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V., , BREEMS, Lucien, J. , SANDIFORT, Quino, A. , SCHUURMANS, Han, M.
发明人： BREEMS, Lucien, J. , SANDIFORT, Quino, A. , SCHUURMANS, Han, M.
IPC分类号： H03D7/14
CPC分类号： H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D7/1491 , H03D2200/0025
摘要： The invention relates to a mixer circuit, a receiver comprising a mixer circuit, and a method of mixing an input signal with an oscillator signal. A mixer circuit 300 according to the invention comprises a first input node 301 and a second input node 302 for receiving an input signal Vin, a first output node 321 and a second output node 322, voltage to-current conversion means Rla, Rlb, R2a, R2b, and switching means M1, M2, M3, M4 operatively coupled to each other and to the first input node 301, the second input node 302, the first output node 321, and the second output node 322 to generate a mixed input signal at the first output node 321 and the second output node 322 in response to an oscillator signal. The voltage-to-current conversion means Rla, Rlb, R2a, R2b comprises a first voltage-to current converter RI a, R2a for generating a first current at a first switching node 311 and a third current at a third switching node 313 in response to the input signal Vin, and a second voltage-to-current converter Rlb, R2b for generating a second current at a second switching node 312 and a fourth current a fourth switching node 314 in response to the input signal Vin. The switching means M1, M2, M3, M4 is arranged to couple the second switching node 312 to the second output node 322 and the third switching node 313 to the first output node 321 during a first phase ϕ1 of the oscillator signal; and the first switching node 311 to the first output node 321 and the fourth switching node 314 to the second output node 322 during a second phase ϕ2 of the oscillator signal. As a result first and third switching nodes 311, 313 are isolated from respectively second and fourth switching node 312, 314. This prevents cross-over distortion from parasitic capacitances associated with first and third switching nodes 311, 313 via respective switches M2 and M4, and vice versa from parasitic capacitances associated with second and fourth switching nodes 312, 314 via respective switches M1 and M3.
摘要翻译：本发明涉及混频器电路，包括混频器电路的接收机以及混合输入信号与振荡器信号的方法。根据本发明的混频器电路300包括用于接收输入信号Vin的第一输入节点301和第二输入节点302，第一输出节点321和第二输出节点322，电压到电流转换装置R 1a，R 1b，R 2a ，R2b以及可操作地耦合到第一输入节点301，第二输入节点302，第一输出节点321和第二输出节点322的开关装置M1，M2，M3，M4，以产生混合输入信号在第一输出节点321和第二输出节点322响应于振荡器信号。电压 - 电流转换装置Rla，Rlb，R2a，R2b包括用于在第一开关节点311产生第一电流的第一电压 - 电流转换器RIa和响应于第三开关节点313的第三电流以及用于响应于输入信号Vin在第二开关节点312产生第二电流的第二电压 - 电流转换器R1b和第二电流转换器R1b，以及第四电流和第四开关节点314。开关装置M1，M2，M3，M4布置成在振荡器信号的第一相位φ1期间将第二开关节点312耦合到第二输出节点322和第三开关节点313到第一输出节点321; 以及在振荡器信号的第二相位φ2期间，第一切换节点311到第一输出节点321和第四切换节点314到第二输出节点322。结果，第一和第三开关节点311,313分别与第二和第四开关节点312,314分离。这防止了经由相应开关M2和M4的与第一和第三开关节点311,313相关联的寄生电容的交叉失真，反之亦然，通过相应的开关M1和M3与第二和第四开关节点312,314相关联的寄生电容。

8. 发明申请

WO2004098043A2 MIXER-SYSTEM WITH GAIN-BLOCKS AND SWITCHES 审中-公开
标题翻译：具有增益块和开关的混合器系统
公开(公告)号：WO2004098043A2
公开(公告)日：2004-11-11
申请号：PCT/IB2004050524
申请日：2004-04-27
申请人： KONINKL PHILIPS ELECTRONICS NV , NORDHOLT ERNST H
发明人： NORDHOLT ERNST H
IPC分类号： H03D7/14
CPC分类号： H03D7/145 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D7/1491 , H03D2200/0007 , H03D2200/0025
摘要： Mixer-systems comprising gain-blocks (1-4) and switches (5-8) have a flexibility depending upon their configuration (insight) and are made more flexible (basic idea) by supplying data input signals to the gain-blocks (1-4) and oscillation signals to the switches (5-6) for switching couplings between the gain-blocks (1-4). A switch (5-6) comprises a switch-transistor and a gain-block (1-4) either comprises a gain-block-transistor or comprises five gain-block-transistors for increasing the linearity of the mixer-system. The switches (5-6) have main electrodes which in the balanced situation are all coupled via four impedances (13-16) to the gain-blocks (1-4). In the single ended situation two main electrodes are coupled via two impedances (13,15,18,20) to the gain-blocks (1-4) and two others are coupled directly to the gain-blocks (1-4). By introducing further switches (7-8) parallel to the switches (5-6), harmonics can be suppressed. The basic mixer-system has an improved performance which can be further improved easily.
摘要翻译：包括增益块（1-4）和开关（5-8）的混频器系统根据其配置（洞察）具有灵活性，并且通过向增益块（1）提供数据输入信号而变得更灵活（基本思想） -4）和振荡信号发送到开关（5-6），用于切换增益块（1-4）之间的耦合。开关（5-6）包括开关晶体管和增益块（1-4），其包括增益块晶体管或包括用于增加混频器系统的线性度的五个增益块晶体管。开关（5-6）具有主电极，其在平衡状态下都通过四个阻抗（13-16）耦合到增益块（1-4）。在单端情况下，两个主电极经由两个阻抗（13,15,18,20）耦合到增益块（1-4），另外两个主电极直接耦合到增益块（1-4）。通过引入与开关（5-6）平行的另外的开关（7-8），可以抑制谐波。基本的混合器系统具有改进的性能，可以容易地进一步改善。

9. 发明申请

WO2003090370A1 MULTIPLE-INPUT MULTIPLE-OUTPUT RADIO TRANSCEIVER 审中-公开
标题翻译：多输入多输出无线收发器
公开(公告)号：WO2003090370A1
公开(公告)日：2003-10-30
申请号：PCT/US2003/012183
申请日：2003-04-21
申请人： COGNIO, INC. , SUGAR, Gary, L. , MASUCCI, Robert, M. , RAHN, David, G.
发明人： SUGAR, Gary, L. , MASUCCI, Robert, M. , RAHN, David, G.
IPC分类号： H04B1/40
CPC分类号： H04B7/0413 , H03D2200/0025 , H04B1/005 , H04B1/0057 , H04B1/006 , H04B1/406
摘要： A MIMO radio transceiver (10) to support processing of multiple signals for simultaneous transmission via corresponding ones of a plurality of antennas (12, 14) and to support receive processing of multiple signals detected by corresponding ones of the plurality of antennas (12, 14 ). The radio transceiver provides, on a single semiconductor integrated circuit, a receiver circuit or path for each of a plurality of antennas and a transmit circuit or path for each of the plurality of antennas. Each receiver circuit downconverts (24) the RF signal detected by its associated antenna to a baseband signal. Similarly, each transmit path upconverts a baseband signal to be transmitted by an assigned antenna.
摘要翻译：一种用于支持多个信号的处理的MIMO无线电收发机（10），用于通过多个天线（12,14）中的相应天线进行同时传输，并且支持由多个天线（12,14）中的相应天线检测的多个信号的接收处理）。无线电收发器在单个半导体集成电路上提供用于多个天线中的每一个的接收机电路或路径以及用于多个天线中的每一个的发射电路或路径。每个接收器电路将由其相关联的天线检测到的RF信号（24）下变频为基带信号。类似地，每个发送路径上变换要由分配的天线发送的基带信号。

10. 发明申请

WO2003009465A1 ミキサ回路审中-公开
标题翻译：混频器电路
公开(公告)号：WO2003009465A1
公开(公告)日：2003-01-30
申请号：PCT/JP2001/006062
申请日：2001-07-12
申请人：三菱電機株式会社 , 高橋貴紀 , 上馬弘敬
发明人：高橋貴紀 , 上馬弘敬
IPC分类号： H03D7/14
CPC分类号： H03D7/1425 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D2200/0025
摘要： A mixer circuit is constructed: such that a frequency component signal (LO) of a local oscillation wave is inputted to the base of a transistor (1) a local frequency multiplier (10) whereas a signal (composing LO) in opposite phase of the local oscillation wave is inputted to the base of a transistor (2); such that the collectors and the emitters of the individual transistors (1, 2) are connected with each other; such that a modulated signal is outputted from the collector of each transistor; such that a reference transistor (3) is differentially connected with the transistors (1, 2); such that a load (6) is connected with the collectors of the individual transistors (1 to 3) acting as the output of the differential connection; and such that a transistor (4) has its collector connected with the individual differentially connected transistors (1 to 3), receives a modulated signal at its base, and has its emitter connected with a constant current source (5).
摘要翻译：构成混频器电路：使得本地振荡波的频率分量信号（LO）被输入到晶体管（1）的本地倍频器（10）的基极，而相反相位的信号（组成LO）本地振荡波被输入到晶体管（2）的基极; 使得各个晶体管（1,2）的集电极和发射极彼此连接; 使得调制信号从每个晶体管的集电极输出; 使得参考晶体管（3）与晶体管（1,2）差分连接; 使得负载（6）与用作差分连接的输出的各个晶体管（1至3）的集电极连接; 并且使得晶体管（4）的集电极与各个差分连接的晶体管（1至3）连接，在其基极处接收调制信号，并且其发射极与恒流源（5）连接。

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