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1. 发明申请

WO2005050776A3 MONOLITHIC SILICON-BASED PHASED ARRAYS FOR COMMUNICATIONS AND RADARS 审中-公开
标题翻译：用于通信和雷达的基于硅的硅基阵列
公开(公告)号：WO2005050776A3
公开(公告)日：2006-09-21
申请号：PCT/US2004037802
申请日：2004-11-12
申请人： CALIFORNIA INST OF TECHN , HASHEMI HOSSEIN , GUAN XIANG , HAJIMIRI ALI
发明人： HASHEMI HOSSEIN , GUAN XIANG , HAJIMIRI ALI
IPC分类号： H04B1/06 , G01S3/16 , H01Q20060101 , H01Q3/22 , H01Q3/26 , H01Q3/42 , H01Q21/00 , H04B1/26 , H04B7/00
CPC分类号： H01Q3/26 , H01Q3/22 , H01Q3/2682 , H01Q3/42 , H01Q21/0093
摘要： A phased-array receiver is adapted so as to be fully integrated and fabricated on a single silicon substrate. The phased-array receiver is operative to receive a 24 GHz signal and may be adapted to include 8-elements formed in a SiGe BiCMOS technology. The phased-array receiver utilizes a heterodyne topology, and the signal combining is performed at an IF of 4.8GHz. The phase-shifting with 4 bits of resolution is realized at the LO port of the first down-conversion mixer. A ring LC VCO generates 16 different phases of the LO. An integrated 19.2GHz frequency synthesizer locks the VCO frequency to a 75MHz external reference. Each signal path achieves a gain of 43dB, a noise figure of 7.4dB, and an IIP3 of -11dBm. The 8-path array achieves an array gain of 61dB, a peak-to-null ratio of 20dB, and improves the signal-to-noise ratio at the output by 9dB.
摘要翻译：相控阵接收器适于完全集成并制造在单个硅衬底上。相控阵接收器可操作以接收24GHz信号，并且可适于包括以SiGe BiCMOS技术形成的8个元件。相控阵接收机利用外差拓扑，信号组合在4.8GHz的IF下进行。在第一个下变频混频器的LO端口实现4位分辨率的相移。振荡LC VCO产生LO的16个不同相位。集成的19.2GHz频率合成器将VCO频率锁定到75MHz外部参考。每个信号路径的增益为43dB，噪声系数为7.4dB，IIP3为-11dBm。 8路阵列实现了61dB的阵列增益，20dB的峰 - 无效比，并将输出端的信噪比提高了9dB。

2. 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。

3. 发明申请

WO2008060528A1 MULTI-TRANSFORMER ARCHITECTURE FOR AN ACTIVE RF CIRCUIT 审中-公开
标题翻译：用于有源RF电路的多变压器架构
公开(公告)号：WO2008060528A1
公开(公告)日：2008-05-22
申请号：PCT/US2007/023808
申请日：2007-11-14
申请人： SIBEAM, INC. , GUAN, Xiang , DOAN, Chinh Huy , EMAMI-NEYESTANAK, Sohrab
发明人： GUAN, Xiang , DOAN, Chinh Huy , EMAMI-NEYESTANAK, Sohrab
IPC分类号： H01P5/10 , H03H7/42 , H04L25/02
CPC分类号： H04L25/0266 , H01P5/10 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D2200/0023 , H03H7/09 , H03H7/42 , H04L25/0274 , H04L25/0276
摘要： A circuit features a balun (102) having an unbalanced input (103) and a balanced output (105), and a differential coupler (104) having a symmetrical structure about a center axis (CENTER AXIS). The differential coupler has a differential input (107) and a differential output (109), the differential input being coupled to the balanced output of the balun. An impedance element (110) is coupled to a circuit node of the differential coupler at a point along the center axis. Other embodiments are also described and claimed.
摘要翻译：电路的特征在于具有不平衡输入（103）和平衡输出（105）的平衡不平衡变压器（102）和具有围绕中心轴线（CENTER AXIS）的对称结构的差速耦合器（104）。差分耦合器具有差分输入（107）和差分输出（109），差分输入耦合到平衡 - 不平衡变换器的平衡输出。阻抗元件（110）在沿着中心轴的点处耦合到差分耦合器的电路节点。还描述和要求保护其他实施例。

4. 发明申请

WO2005050776A2 MONOLITHIC SILICON-BASED PHASED ARRAYS FOR COMMUNICATIONS AND RADARS 审中-公开
标题翻译：用于通信和雷达的基于硅的硅基阵列
公开(公告)号：WO2005050776A2
公开(公告)日：2005-06-02
申请号：PCT/US2004/037802
申请日：2004-11-12
申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY , HASHEMI, Hossein , GUAN, Xiang , HAJIMIRI, Ali
发明人： HASHEMI, Hossein , GUAN, Xiang , HAJIMIRI, Ali
IPC分类号： H01Q
CPC分类号： H01Q3/26 , H01Q3/22 , H01Q3/2682 , H01Q3/42 , H01Q21/0093
摘要： A phased-array receiver is adapted so as to be fully integrated and fabricated on a single silicon substrate. The phased-array receiver is operative to receive a 24 GHz signal and may be adapted to include 8-elements formed in a SiGe BiCMOS technology. The phased-array receiver utilizes a heterodyne topology, and the signal combining is performed at an IF of 4.8GHz. The phase-shifting with 4 bits of resolution is realized at the LO port of the first down-conversion mixer. A ring LC VCO generates 16 different phases of the LO. An integrated 19.2GHz frequency synthesizer locks the VCO frequency to a 75MHz external reference. Each signal path achieves a gain of 43dB, a noise figure of 7.4dB, and an IIP3 of -11dBm. The 8-path array achieves an array gain of 61dB, a peak-to-null ratio of 20dB, and improves the signal-to-noise ratio at the output by 9dB.
摘要翻译：相控阵接收器适于完全集成并制造在单个硅衬底上。相控阵接收器可操作以接收24GHz信号，并且可适于包括以SiGe BiCMOS技术形成的8个元件。相控阵接收机利用外差拓扑，信号组合在4.8GHz的IF下进行。在第一个下变频混频器的LO端口实现4位分辨率的相移。振荡LC VCO产生LO的16个不同相位。集成的19.2GHz频率合成器将VCO频率锁定到75MHz外部参考。每个信号路径的增益为43dB，噪声系数为7.4dB，IIP3为-11dBm。 8路阵列实现了61dB的阵列增益，20dB的峰 - 无效比，并将输出端的信噪比提高了9dB。

5. 发明申请

WO2004062093A2 COMMON GATE WITH RESISTIVE FEED-THROUGH LOW NOISE AMPLIFIER 审中-公开
标题翻译：具有电阻馈通的低通噪声放大器的通用门
公开(公告)号：WO2004062093A2
公开(公告)日：2004-07-22
申请号：PCT/US2003/039174
申请日：2003-12-09
申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY , HAJIMIRI, Seyed-Ali , GUAN, Xiang
发明人： HAJIMIRI, Seyed-Ali , GUAN, Xiang
IPC分类号： H03F3/00
CPC分类号： H03F3/193 , H03F2200/294 , H03F2200/372
摘要： A radio-frequency amplifier is provided. The radiofrequency amplifier includes a transistor having an input terminal, an output terminal, a control terminal, and a transconductance gm. A series-connected feed-through resistance Rf and feed-through capacitance Cf is connected in parallel with the input terminal and the output terminal of the transistor. A load resistance RL is connected to the output terminal. The control terminal of the transistor is biased at a fixed voltage. Part of the transistor noise follows the looped path through the feed-through resistor instead of passing on to the load, which reduces the noise figure of the amplifier. The value of gm, Rf and RL are chosen in a way to keep the input impedance of the amplifier matched to a well-defined signal source impedance.
摘要翻译：提供射频放大器。射频放大器包括具有输入端子，输出端子，控制端子和跨导gm的晶体管。串联连接的馈通电阻Rf和馈通电容Cf与晶体管的输入端和输出端并联连接。负载电阻RL连接到输出端子。晶体管的控制端子被偏置在固定电压。晶体管噪声的一部分遵循通过馈通电阻的环路，而不是传递到负载，这降低了放大器的噪声系数。选择gm，Rf和RL的值，以保持放大器的输入阻抗与良好定义的信号源阻抗匹配。

6. 发明申请

WO2004062093A3 COMMON GATE WITH RESISTIVE FEED-THROUGH LOW NOISE AMPLIFIER 审中-公开
标题翻译：具有阻性低噪声放大器的共栅
公开(公告)号：WO2004062093A3
公开(公告)日：2004-09-16
申请号：PCT/US0339174
申请日：2003-12-09
申请人： CALIFORNIA INST OF TECHN , HAJIMIRI SEYED-ALI , GUAN XIANG
发明人： HAJIMIRI SEYED-ALI , GUAN XIANG
IPC分类号： H03F3/193
CPC分类号： H03F3/193 , H03F2200/294 , H03F2200/372
摘要： A radio-frequency amplifier is provided. The radiofrequency amplifier includes a transistor having an input terminal, an output terminal, a control terminal, and a transconductance gm. A series-connected feed-through resistance Rf and feed-through capacitance Cf is connected in parallel with the input terminal and the output terminal of the transistor. A load resistance RL is connected to the output terminal. The control terminal of the transistor is biased at a fixed voltage. Part of the transistor noise follows the looped path through the feed-through resistor instead of passing on to the load, which reduces the noise figure of the amplifier. The value of gm, Rf and RL are chosen in a way to keep the input impedance of the amplifier matched to a well-defined signal source impedance.
摘要翻译：提供射频放大器。射频放大器包括具有输入端子，输出端子，控制端子和跨导gm的晶体管。串联连接的馈通电阻Rf和馈通电容Cf与晶体管的输入端子和输出端子并联连接。负载电阻RL连接到输出端子。晶体管的控制端子被偏置在固定电压。部分晶体管噪声遵循通过馈通电阻器的环路而不是传递到负载，这降低了放大器的噪声系数。选择gm，Rf和RL的值是为了保持放大器的输入阻抗与定义良好的信号源阻抗相匹配。

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