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1. 发明申请

WO2007055748A3 MIXER CIRCUITS AND METHODS WITH IMPROVED SPECTRAL PURITY 审中-公开
公开(公告)号：WO2007055748A3
公开(公告)日：2007-05-18
申请号：PCT/US2006/024600
申请日：2006-06-26
申请人： WILINX, INC , ROSTAMI, Edris , BAGHERI, Rahim , DJAFARI, Masoud , KOMIJANI, Abbas
发明人： ROSTAMI, Edris , BAGHERI, Rahim , DJAFARI, Masoud , KOMIJANI, Abbas
IPC分类号： H03B21/00 , H04B1/18 , H04B1/26 , G06G7/16 , G06G7/12
摘要： Embodiments of the present invention include circuits and methods for improving the spectral purity of mixer circuits. In one embodiment the present invention includes mixer circuit including capacitances between sources of mixer transistors to reduce spectral impurity. In another embodiment, the present invention includes a mixer circuit including a bias circuit, the bias circuit comprising feedback loop to control the bias at the gate of mixer transistors.

2. 发明申请

WO2007048007A3 WIDEBAND CIRCUITS AND METHODS 审中-公开
公开(公告)号：WO2007048007A3
公开(公告)日：2007-04-26
申请号：PCT/US2006/041187
申请日：2006-10-20
申请人： WILINX CORPORATION , BAGHERI, Mahdi , MIRZAEI, Ahmad , BAGHERI, Rahim , ROSTAMI, Edris , KOMIJANI, Abbas , DJAFARI, Masoud
发明人： BAGHERI, Mahdi , MIRZAEI, Ahmad , BAGHERI, Rahim , ROSTAMI, Edris , KOMIJANI, Abbas , DJAFARI, Masoud
IPC分类号： H03F3/191
摘要： Embodiments of the present invention include circuits and methods with wide bandwidths. In one embodiment, parasitic capacitances of the output of a first stage and the input of a second stage are included in a network. The output of the first stage is coupled to the input of the network, and the input of the second stage is coupled to an intermediate node of the network. In one embodiment, the parasitic capacitance of the second stage is the largest capacitance in the network. In another embodiment, passive networks are coupled to the outputs of a stage, and one or more current injection circuits may be used to extend the bandwidth of the circuit.

3. 发明申请

WO2008144151A2 MULTI-ANTENNA TRANSMITTER FOR MULTI-TONE SIGNALING 审中-公开
标题翻译：用于多音信号的多天线发射机
公开(公告)号：WO2008144151A2
公开(公告)日：2008-11-27
申请号：PCT/US2008/061117
申请日：2008-04-22
申请人： RAMBUS INC. , ABBASFAR, Aliazam , KOMIJANI, Abbas
发明人： ABBASFAR, Aliazam , KOMIJANI, Abbas
IPC分类号： H04L27/26 , H04B7/06
CPC分类号： H04B7/06 , H04L27/2614 , H04L27/2628
摘要： Embodiments of a communication circuit are described. This communication circuit includes an input node to receive a set of data symbols and a partitioner coupled to the input node. This partitioner is to divide the set of data symbols into M irregular subgroups of data symbols, a given one of which includes non-consecutive data symbols in the set of data symbols. Moreover, this given irregular subgroup of data symbols includes at least two pairs of adjacent data symbols having different inter-data- symbol spacings in the set of data symbols. This communication circuit also includes M modulators coupled to the partitioner, where the given irregular subgroup of data symbols is coupled to a given modulator in the M modulators. Furthermore, the communication circuit includes M output nodes, where a given output node in the M output nodes is coupled to the given modulator and is to couple to an antenna element in M antenna elements.
摘要翻译：描述通信电路的实施例。该通信电路包括用于接收一组数据符号的输入节点和耦合到输入节点的分割器。该分割器将数据符号组划分成M个不规则的数据符号子组，其中一个给定的数据符号包括该组数据符号中的非连续的数据符号。此外，该给定的不规则的数据符号子组包括在该组数据符号中具有不同的数据间符号间隔的至少两对相邻的数据符号。该通信电路还包括耦合到分割器的M个调制器，其中给定的不规则子组的数据符号耦合到M个调制器中的给定调制器。此外，通信电路包括M个输出节点，其中M个输出节点中的给定输出节点耦合到给定的调制器，并且耦合到M个天线元件中的天线元件。

4. 发明申请

WO2007038310A1 A mm-WAVE FULLY INTEGRATED PHASED ARRAY RECEIVER AND TRANSMITTER WITH ON CHIP ANTENNAS 审中-公开
标题翻译：一个毫米波的完全集成的相位阵列接收器和发射器与芯片天线
公开(公告)号：WO2007038310A1
公开(公告)日：2007-04-05
申请号：PCT/US2006/037050
申请日：2006-09-22
申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY , BABAKHANI, Aydin , GUAN, Xiang , HAJIMIRI, Seyed, Ali , KOMIJANI, Abbas , NATARAJAN, Arun
发明人： BABAKHANI, Aydin , GUAN, Xiang , HAJIMIRI, Seyed, Ali , KOMIJANI, Abbas , NATARAJAN, Arun
IPC分类号： G01S7/03
CPC分类号： H01Q9/065 , G01S7/032 , H01Q19/065
摘要： A phased array mm-wave device includes a substrate, a mm-wave transmitter integrated onto the substrate configured to transmit a mm-wave signal and/or a mm-wave receiver integrated onto the substrate and configured to receive a mm-wave signal. The mm-wave device also includes a phased array antenna system integrated onto the substrate and including two or more antenna elements. The phased array mm-wave device also includes one or more dielectric lenses. A distributed mm-wave distributed combining tree circuit includes at least two pairs of differential tranconductors with regenerative degeneration and accepts at least two differential input signals. Two mm-wave loopback methods measure the phased array antenna patterns and the performance of an integrated receiver transmitter system.
摘要翻译：相控阵mm波装置包括基板，集成在基板上的毫米波发射器，该波长发射器被配置成传输一毫米波信号和/或集成在基板上的毫米波接收器，并被配置为接收毫米波信号。毫米波器件还包括集成在衬底上并包括两个或多个天线元件的相控阵天线系统。相控阵mm波装置还包括一个或多个电介质透镜。分布式的毫米波分布式组合树电路包括具有再生退化的至少两对差分导体并且接受至少两个差分输入信号。两毫米波回环方法测量相控阵天线方向图和综合接收发射机系统的性能。

5. 发明申请

WO2008147908A1 A MULTI-ANTENNA BEAM-FORMING SYSTEM FOR TRANSMITTING CONSTANT ENVELOPE SIGNALS DECOMPOSED FROM A VARIABLE ENVELOPE SIGNAL 审中-公开
标题翻译：用于传输由可变信封信号分解的恒定信号的多天线波束形成系统
公开(公告)号：WO2008147908A1
公开(公告)日：2008-12-04
申请号：PCT/US2008/064572
申请日：2008-05-22
申请人： RAMBUS INC. , KOMIJANI, Abbas , ABBASFAR, Aliazam
发明人： KOMIJANI, Abbas , ABBASFAR, Aliazam
IPC分类号： H03F1/02 , H03F1/32 , H04B7/06
CPC分类号： H04B7/0682 , H03F1/0294 , H03F3/24 , H04B2001/0408
摘要： Embodiments in the present disclosure pertain to a multi-antenna beam-forming system for transmitting constant envelope signals decomposed from a variable envelope signal. The variable envelope signal is decomposed into two constant envelope signals. Each of the constant envelope signals are separately amplified by power amplifiers and transmitted over separate antennas. Beam steering delays can be added to the transmit paths of the constant envelope signals to direct the beam to the location of a receiver. The transmitted constant envelope signals combine through spatial out-phasing such that a receiving antenna receives a variable envelope signal.
摘要翻译：本公开的实施例涉及用于发送从可变包络信号分解的恒定包络信号的多天线波束形成系统。可变包络信号被分解成两个恒定包络信号。每个恒定包络信号由功率放大器单独放大并通过单独的天线发射。光束转向延迟可以被添加到恒定包络信号的发射路径，以将光束引导到接收器的位置。所发送的恒定包络信号通过空间外相结合，使得接收天线接收可变包络信号。

6. 发明申请

WO2006039500A2 MULTI-ELEMENT PHASED ARRAY TRANSMITTER WITH LO PHASE SHIFTING AND INTEGRATED POWER AMPLIFIER 审中-公开
标题翻译：多元相位阵发射机，具有相移和集成功率放大器
公开(公告)号：WO2006039500A2
公开(公告)日：2006-04-13
申请号：PCT/US2005/035210
申请日：2005-09-29
申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY , NATARAJAN, Arun , KOMIJANI, Abbas , HAJIMIRI, Seyed, Ali
发明人： NATARAJAN, Arun , KOMIJANI, Abbas , HAJIMIRI, Seyed, Ali
IPC分类号： H01Q3/22
CPC分类号： H01Q3/42 , H01Q3/22
摘要： A fully integrated CMOS multi-element phased-array transmitter (transmitter) includes, in part, on-chip power amplifiers (PA), with integrated output matching. The transmitter is adapted to be configured as a two-dimensional 2-by-2 array or as a one dimensional 1-by-4 array. The transmitter uses a two step up-conversion architecture with an IF frequency of 4.8GHz. Double-quadrature architecture for the up-conversion stages attenuates the signal at image frequencies. The phase selectors in each transmitter path have independent access to all the phases of the VCO. The double quadrature architecture results in two sets of phase selectors for each path, one for the in-phase (I) and one for the quadrature phase (Q) of the LO signal. The phase selection is done in two stages, with the first stage determining the desired VCO differential phase pair and the next stage selecting the appropriate polarity. An on-chip Balun is used for differential to single-ended conversion.
摘要翻译：完全集成的CMOS多元件相控阵发射器（发射机）部分包括片上功率放大器（PA），具有集成的输出匹配。发射机适于配置为二维2×2阵列或一维1×4阵列。发射机采用双频上变频架构，中频频率为4.8GHz。上转换级的双正交架构衰减了图像频率处的信号。每个发射器路径中的相位选择器具有对VCO的所有相位的独立访问。双正交架构为每个路径产生两组相位选择器，一组用于同相（I），另一组用于LO信号的正交相位（Q）。相位选择分为两个阶段，第一阶段确定期望的VCO差分相位对，下一个阶段选择适当的极性。片内平衡变换器用于差分到单端转换。

7. 发明申请

WO2003079547A3 RECONFIGURABLE DISTRIBUTED ACTIVE TRANSFORMERS 审中-公开
公开(公告)号：WO2003079547A3
公开(公告)日：2003-09-25
申请号：PCT/US2003/007157
申请日：2003-03-10
申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY , KOMIJANI, Abbas , HAJIMIRI, Seyed-Ali , KEE, Scott, D. , AOKI, Ichiro
发明人： KOMIJANI, Abbas , HAJIMIRI, Seyed-Ali , KEE, Scott, D. , AOKI, Ichiro
IPC分类号： H03F3/42
摘要： Reconfigurable distributed active transformers are provided. The exemplary embodiments provided allow changing of the effective number and configuration of the primary and secondary windings, where the distributed active transformer structures can be reconfigured dynamically to control the output power levels, allow operation at multiple frequency bands, maintain a high performance across multiple channels, and sustain desired characteristics across process, temperature and other environmental variations. Integration of the distributed active transformer power amplifiers and a low noise amplifier on a semiconductor substrate can also be provided.

8. 发明公开

EP1946442A2 WIDEBAND CIRCUITS AND METHODS 有权
标题翻译：宽带，电路及程序
公开(公告)号：EP1946442A2
公开(公告)日：2008-07-23
申请号：EP06826418.3
申请日：2006-10-20
申请人： WiLinx, Inc.
发明人： BAGHERI, Mahdi , BAGHERI, Rahim , ROSTAMI, Edris , KOMIJANI, Abbas , MIRZAEI, Ahmad , DJAFARI, Masoud
IPC分类号： H03F3/191
CPC分类号： H03F1/48 , H03F3/191 , H03F3/45179 , H03F3/45475 , H03F2200/168 , H03F2200/36 , H03F2203/45302 , H03F2203/45318 , H03F2203/45342 , H03F2203/45354
摘要： Embodiments of the present invention include circuits and methods with wide bandwidths. In one embodiment, parasitic capacitances of the output of a first stage and the input of a second stage are included in a network. The output of the first stage is coupled to the input of the network, and the input of the second stage is coupled to an intermediate node of the network. In one embodiment, the parasitic capacitance of the second stage is the largest capacitance in the network. In another embodiment, passive networks are coupled to the outputs of a stage, and one or more current injection circuits may be used to extend the bandwidth of the circuit.

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