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    INTEGRATED LIGHT SOURCE INDEPENDENT LINEWIDTH REDUCTION
    2.
    发明申请
    INTEGRATED LIGHT SOURCE INDEPENDENT LINEWIDTH REDUCTION 审中-公开
    集成的光源独立线宽减少

    公开(公告)号：WO2013078432A9

    公开(公告)日：2013-12-12

    申请号：PCT/US2012066423

    申请日：2012-11-21

    Applicant: CALIFORNIA INST OF TECHN

    Inventor： AFLATOUNI FIROOZ ,  ABIRI BEHROOZ ,  HAJIMIRI SEYED ALI

    IPC: H01S3/10 ,  H01S3/13

    CPC classification number: G02F1/011 ,  G02F1/0121 ,  H04B10/2507 ,  H04B10/671

    Abstract: An integrated optical linewidth reduction system detects/estimates the phase noise of an incoming optical signal and subtracts the detected phase noise from the phase noise of the incoming signal. A first coupler/splitter of the linewidth reduction system may split the incoming signal into first and second optical signals travelling through first and second optical paths. A second coupler/splitter may split the second optical signal into third and fourth optical signals travelling through third and fourth optical paths. The third optical path has a longer propagation delay than the fourth optical path. Two different coupling ratios of the third and fourth optical signals are used to generate an electrical signal representative of the phase noise of the incoming signal. A phase detector/estimator estimates the phase noise from the electrical signal. A phase modulator subtracts the detected/estimated phase noise from the phase noise of the incoming signal.

    Abstract translation: 集成光学线宽减小系统检测/估计输入光信号的相位噪声，并从输入信号的相位噪声中减去检测到的相位噪声。 线宽减小系统的第一耦合器/分离器可以将输入信号分成行进通过第一和第二光路径的第一和第二光信号。 第二耦合器/分路器可将第二光信号分成行进通过第三和第四光路的第三和第四光信号。 第三光路具有比第四光路更长的传播延迟。 使用第三和第四光信号的两个不同耦合比来产生表示输入信号的相位噪声的电信号。 相位检测器/估计器根据电信号估计相位噪声。 相位调制器从输入信号的相位噪声中减去检测/估计的相位噪声。

    EQUALIZATION OF THIRD-ORDER INTERMODULATION PRODUCTS IN WIDEBAND DIRECT CONVERSION RECEIVER
    3.
    发明申请
    EQUALIZATION OF THIRD-ORDER INTERMODULATION PRODUCTS IN WIDEBAND DIRECT CONVERSION RECEIVER 审中-公开
    宽带直接变频接收机中三阶互调产物的均衡

    公开(公告)号：WO2009039289A2

    公开(公告)日：2009-03-26

    申请号：PCT/US2008076874

    申请日：2008-09-18

    Applicant: CALIFORNIA INST OF TECHN ,  KEEHR EDWARD ,  HAJIMIRI SEYED ALI

    Inventor： KEEHR EDWARD ,  HAJIMIRI SEYED ALI

    IPC: H04L27/01 ,  H04B7/005

    CPC classification number: H03D7/14 ,  H04B1/123

    Abstract: A feedforward error-compensated receiver for minimizing undesired odd-order nonlinear distortion products. The receiver includes a first receiver path configured to receive an input signal. The first receiver path outputs a signal including at least one baseband (BB) frequency. At least one second receiver path is configured to receive the input signal and to provide a second receiver path output signal. The second receiver path includes at least one odd-order nonlinear distortion reference generator. The at least one odd-order nonlinear distortion reference generator and the mixer are configured to generate a synthetic odd-order nonlinear distortion signal. A combining element is configured to receive the output signal from the first path and the output signal from the second receiver path output and to combine the signals such that the odd-order nonlinear distortion signals are substantially attenuated at an output of the combining element.

    Abstract translation: 前馈误差补偿接收器，用于最小化不需要的奇数阶非线性失真产物。 接收器包括被配置为接收输入信号的第一接收器路径。 第一接收器路径输出包括至少一个基带（BB）频率的信号。 至少一个第二接收器路径被配置为接收输入信号并提供第二接收器路径输出信号。 第二接收机路径包括至少一个奇数阶非线性失真参考发生器。 该至少一个奇数阶非线性失真参考发生器和混频器被配置为产生合成奇数阶非线性失真信号。 组合元件被配置为接收来自第一路径的输出信号和来自第二接收器路径输出的输出信号并组合这些信号，使得奇数阶非线性失真信号在组合元件的输出处被显着衰减。

    INTEGRATED CIRCUIT WITH BREAKDOWN VOLTAGE MULTIPLIER
    4.
    发明申请
    INTEGRATED CIRCUIT WITH BREAKDOWN VOLTAGE MULTIPLIER 审中-公开
    具有断电电压乘法器的集成电路

    公开(公告)号：WO2005107074A2

    公开(公告)日：2005-11-10

    申请号：PCT/US2005012758

    申请日：2005-04-14

    Applicant: CALIFORNIA INST OF TECHN ,  MANDEGARAN SAM ,  HAJIMIRI SEYED ALI

    Inventor： MANDEGARAN SAM ,  HAJIMIRI SEYED ALI

    IPC: H03K19/003 ,  H03K19/0175

    CPC classification number: H03K19/00315 ,  H03K19/00307

    Abstract: An apparatus and method for driving an output signal in a high speed integrated circuit. The apparatus and methods enable the output voltage swing from the driver to exceed the breakdown voltage of any individual element in the output driver. A high speed driver can utilize one or more transistors in a stacked configuration, such that the breakdown voltage of the entire stacked configuration is based on the number of transistors in the stack. The driver is configured to distribute the output voltage substantially equally among each of the stacked transistors, such that the driver is able to source an output voltage swing that is greater than the breakdown voltage of any individual transistor in the driver.

    Abstract translation: 一种用于驱动高速集成电路中的输出信号的装置和方法。 该装置和方法使得来自驱动器的输出电压摆幅超过输出驱动器中任何单独元件的击穿电压。 高速驱动器可以利用堆叠配置中的一个或多个晶体管，使得整个堆叠配置的击穿电压基于堆叠中的晶体管的数量。 驱动器被配置为在每个堆叠的晶体管中基本上均等地分配输出电压，使得驱动器能够输出大于驱动器中的任何单独晶体管​​的击穿电压的输出电压摆幅。

    DYNAMIC POLARIZATION MODULATION AND CONTROL
    5.
    发明申请
    DYNAMIC POLARIZATION MODULATION AND CONTROL 审中-公开
    动态极化调制与控制

    公开(公告)号：WO2013172896A3

    公开(公告)日：2014-02-06

    申请号：PCT/US2013026749

    申请日：2013-02-19

    Applicant: CALIFORNIA INST OF TECHN

    Inventor： BOWERS STEVEN ,  DASGUPTA KAUSHIK ,  TABBALVANDANI AMIRREZA SAFARIPOUR ,  HAJIMIRI SEYED ALI

    IPC: H04B10/532 ,  H04B10/548

    CPC classification number: H04L5/04 ,  H01Q9/0407 ,  H01Q21/245 ,  H04L27/04 ,  H04L27/20

    Abstract: A method for sending a data from an electromagnetic radiator by polarization modulation of an electromagnetic wave includes radiating from the radiator first and second electromagnetic waves including first and second polarizations respectively, the first polarization being different than the second polarization. The first and second electromagnetic waves form a third electromagnetic wave having a third polarization different from the first or second polarization. The method includes modulating the third polarization responsive to the data by modulating one or more parts of the third electromagnetic wave. The data is sent in the third polarization. A system for sending a data includes an oscillator adapted to generate an oscillating signal, and a phase shifter coupled to the oscillator and adapted to generate a first phase-shifted oscillating signal having a first phase. The phase shifter is adapted to vary the phase difference across a predefined range in response to the data.

    Abstract translation: 通过电磁波的偏振调制从电磁辐射器发送数据的方法包括分别从散热器辐射和包括第一和第二偏振的第二电磁波，第一极化不同于第二极化。 第一和第二电磁波形成具有与第一或第二极化不同的第三极化的第三电磁波。 该方法包括通过调制第三电磁波的一个或多个部分来响应于数据来调制第三极化。 数据以第三极化发送。 用于发送数据的系统包括适于产生振荡信号的振荡器，以及耦合到振荡器并适于产生具有第一相位的第一相移振荡信号的移相器。 移相器适于响应于数据改变跨预定范围的相位差。

    EFFICIENT ACTIVE MULTI-DRIVE RADIATOR
    6.
    发明申请
    EFFICIENT ACTIVE MULTI-DRIVE RADIATOR 审中-公开
    高效的主动式多驱动散热器

    公开(公告)号：WO2013112214A3

    公开(公告)日：2013-10-03

    申请号：PCT/US2012060698

    申请日：2012-10-18

    Applicant: CALIFORNIA INST OF TECHN ,  BOWERS STEVEN ,  HAJIMIRI SEYED ALI

    Inventor： BOWERS STEVEN ,  HAJIMIRI SEYED ALI

    IPC: H01Q25/04 ,  H01Q1/36

    CPC classification number: H01Q25/04 ,  H01Q1/38 ,  H01Q1/48 ,  H01Q7/00 ,  H01Q11/04

    Abstract: An integrated Multi-Port Driven (MPD) antenna that can be driven at many points with different signals. An integrated MPD radiating source utilizing an 8-phase ring oscillator and eight power amplifiers to drive the MPD antenna at 161GHz with a total radiated power of -2dBm and a single element EIRP of 4.6dBm has been demonstrated in silicon with single lobe well behaved radiation patterns closely matching simulation.

    Abstract translation: 一个集成的多端口驱动（MPD）天线，可以在多个点用不同的信号驱动。 采用8相环形振荡器和8个功率放大器的集成MPD辐射源以161GHz的频率驱动MPD天线，总辐射功率为-2dBm，单元EIRP为4.6dBm，这一点已经在单叶性能良好的辐射硅 模式与模拟紧密匹配。

    MULTI-ELEMENT PHASED ARRAY TRANSMITTER WITH LO PHASE SHIFTING AND INTEGRATED POWER AMPLIFIER
    8.
    发明申请
    MULTI-ELEMENT PHASED ARRAY TRANSMITTER WITH LO PHASE SHIFTING AND INTEGRATED POWER AMPLIFIER 审中-公开
    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：WO2006039500A3

    公开(公告)日：2007-01-18

    申请号：PCT/US2005035210

    申请日：2005-09-29

    Applicant: CALIFORNIA INST OF TECHN ,  NATARAJAN ARUN ,  KOMIJANI ABBAS ,  HAJIMIRI SEYED ALI

    Inventor： NATARAJAN ARUN ,  KOMIJANI ABBAS ,  HAJIMIRI SEYED ALI

    IPC: H04B1/02 ,  H04B7/02 ,  H04M1/00

    CPC classification number: H01Q3/42 ,  H01Q3/22

    Abstract: A fully integrated CMOS multi-element phased-array transmitter (transmitter)includes, in part, on-chip power amplifiers (PA) (262), with integrated output matching. The transmitter is adapted to be configured as a two-dimensional 2-by-2 array or as a one dimensional l-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 (252, 254) in each transmitter path have independent access to all the phases of the VCO (202). The double quadrature architecture results in two sets of phase selectors for each path, one for the in-phase (1) 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.

    Abstract translation: 完全集成的CMOS多元件相控阵发射器（发射机）部分地包括片上功率放大器（PA）（262），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乘法阵列。 发射机采用两段升频转换架构，中频频率为4.8GHz。 上转换级的双正交架构在图像频率衰减信号。 每个发射机路径中的相位选择器（252,254）具有对VCO（202）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（1），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。 片内平衡管用于差分到单端转换。

    DIRECTIONAL OPTICAL RECEIVER
    10.
    发明申请
    DIRECTIONAL OPTICAL RECEIVER 审中-公开

    公开(公告)号：WO2015135003A3

    公开(公告)日：2015-11-12

    申请号：PCT/US2015029110

    申请日：2015-05-04

    Applicant: CALIFORNIA INST OF TECHN

    Inventor： HAJIMIRI SEYED ALI ,  ABIRI BEHROOZ

    IPC: H04B10/69

    CPC classification number: G02B27/0087 ,  G02B5/1842 ,  H04B10/116 ,  H04N5/378

    Abstract: An optical phased array (OPA) receiver selectively detects, measures and differentiates between the amplitudes and directions of signals received from different directions. Because the OPA changes the direction that it looks toward electronically and without the use of any mechanical movements, the OPA is fast, has an enhanced sensitivity, and can be used in a wide variety applications, such as lens-free imaging systems. The OPA is adapted to dynamically control the array of optical elements and focus on the area of interest. The OPA achieves a higher numerical aperture compared to imaging systems that use conventional lens, thereby effectively maintaining a relatively large field of view and collection area concurrently. The OPA may be readily scaled by increasing its array size. Furthermore, because the OPA is relatively flat, it is ideally suited for small form factor applications such as cell phones and tablets.

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