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    • 3. 发明授权
    • Multi-element phased array transmitter with LO phase shifting and integrated power amplifier
    • 具有LO相移和集成功率放大器的多元件相控阵发射器
    • US07493144B2
    • 2009-02-17
    • US11778419
    • 2007-07-16
    • Arun NatarajanAbbas KomijaniSeyed Ali Hajimiri
    • Arun NatarajanAbbas KomijaniSeyed Ali Hajimiri
    • H04B1/38H04M1/00
    • H01Q3/42H01Q3/22
    • 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 4.8 GHz. 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.
    • 完全集成的CMOS多元件相控阵发射器(发射机)部分包括集成输出匹配的片上功率放大器(PA)。 发射机适于配置为二维2×2阵列或一维1×4阵列。 发射机使用中频频率为4.8 GHz的两级升压转换架构。 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。
    • 4. 发明授权
    • Multi-element phased array transmitter with LO phase shifting and integrated power amplifier
    • 具有LO相移和集成功率放大器的多元件相控阵发射器
    • US07260418B2
    • 2007-08-21
    • US11241875
    • 2005-09-29
    • Arun NatarajanAbbas KomijaniSeyed Ali Hajimiri
    • Arun NatarajanAbbas KomijaniSeyed Ali Hajimiri
    • H04B1/38H04M1/00
    • H01Q3/42H01Q3/22
    • 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 4.8 GHz. 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.
    • 完全集成的CMOS多元件相控阵发射器(发射机)部分包括集成输出匹配的片上功率放大器(PA)。 发射机适于配置为二维2×2阵列或一维1×4阵列。 发射机使用中频频率为4.8 GHz的两级升压转换架构。 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。
    • 5. 发明授权
    • Effective-inductance-change based magnetic particle sensing
    • 基于有效电感变化的磁性粒子感应
    • US09176206B2
    • 2015-11-03
    • US12399603
    • 2009-03-06
    • Hua WangSeyed Ali HajimiriYan Chen
    • Hua WangSeyed Ali HajimiriYan Chen
    • G01N27/00G01N33/00G01R33/12
    • G01R33/1269
    • The invention relates to an integrated measurement system to detect a quantity of magnetic particles in a sample. The measurement system includes a substrate. An electromagnetic (EM) structure disposed on the surface of the substrate is configured to receive a sample including the magnetic particles in proximity thereof. The integrated measurement system also includes an electrical current generator disposed on the surface of the substrate which is electro-magnetically coupled to the EM structure. The electrical current generator is configured to cause an electrical current to flow in the EM structure. The integrated measurement system also includes an effective inductance sensor disposed on the surface of the substrate which is configured to measure a selected one of an effective inductance and a change in effective inductance. The invention also relates to a method to determine the number of and/or the locations of the magnetic particles in a sample.
    • 本发明涉及一种用于检测样品中的磁性颗粒的量的综合测量系统。 测量系统包括基板。 设置在基板的表面上的电磁(EM)结构被配置为接收包括邻近的磁性颗粒的样品。 集成测量系统还包括设置在基板的表面上的电流发生器,其电磁耦合到EM结构。 电流发生器被配置为使得电流在EM结构中流动。 集成测量系统还包括设置在衬底的表面上的有效电感传感器,其被配置为测量有效电感和有效电感的变化中选定的一个。 本发明还涉及确定样品中磁性颗粒数量和/或位置的方法。
    • 6. 发明授权
    • Ultrasensitive detection platform for sensing magnetic and/or electrical energy change
    • 用于感测磁和/或电能变化的超灵敏检测平台
    • US08878684B2
    • 2014-11-04
    • US12959331
    • 2010-12-02
    • Hua WangSeyed Ali Hajimiri
    • Hua WangSeyed Ali Hajimiri
    • G08B21/00
    • G01R29/26G01R31/31709G01R33/1269
    • A scalable and ultrasensitive frequency-shift magnetic array scheme. The theoretical limit of the sensor noise floor is shown to be dominated by the phase noise of the sensing oscillators. To increase the sensitivity, a noise suppression technique, Correlated Double Counting (CDC), is described with no power overhead. As an implementation example, a 64-cell sensor array is designed in a standard 65 nm CMOS process. The CDC scheme achieves an additional 6 dB noise suppression. The magnetic sensing capability of the presented sensor is verified by detecting micron size magnetic particles with an SNR of 14.6 dB for a single bead and an effective dynamic range of at least 74.5 dB. Applications in biosensing are contemplated, among other possible uses. Measurement of electrical properties is also contemplated.
    • 可扩展和超灵敏的频移磁阵列方案。 传感器本底噪声的理论极限显示为感知振荡器的相位噪声。 为了提高灵敏度,在没有功率开销的情况下描述了噪声抑制技术相关双计数(CDC)。 作为实现示例,64标准的传感器阵列被设计在标准的65nm CMOS工艺中。 CDC方案实现了额外的6 dB噪声抑制。 通过检测单个珠的SNR为14.6 dB的微米尺寸磁性颗粒和至少74.5 dB的有效动态范围来验证所呈现的传感器的磁感测能力。 考虑到生物传感中的应用以及其它可能的用途。 还考虑了电性能的测量。
    • 8. 发明授权
    • Dynamic scalable concurrent communication and multi-core receiver architecture
    • 动态可扩展并发通信和多核接收机架构
    • US08331886B2
    • 2012-12-11
    • US12564454
    • 2009-09-22
    • Yu-Jiu WangSeyed Ali Hajimiri
    • Yu-Jiu WangSeyed Ali Hajimiri
    • H04B1/04
    • H04B1/30
    • An integrated multi-core RF device includes a common amplifier which outputs an amplified RF signal. A common transmission line is configured to supply the amplified RF signal to a plurality of common transmission line distribution connections. Each receiver core of a plurality of receiver cores has a receiver core RF input coupled to one of the plurality of common transmission line distribution connections. Each core is configured to be tunable to a channel and to output at least one baseband output per channel. The integrated multi-core RF device is configured to concurrently down convert a plurality of channels to corresponding down converted baseband signals. The integrated multi-core RF device is configured to allow dynamic selection of the one or more of the plurality of channels over time. A method to recover a DSCC receiver IC is also described.
    • 集成的多核RF器件包括输出放大的RF信号的公共放大器。 公共传输线被配置为将放大的RF信号提供给多个公共传输线分配连接。 多个接收器核心的每个接收器核心具有耦合到多个公共传输线路分配连接中的一个的接收机核心RF输入。 每个核心被配置为可调谐到通道并且每个通道输出至少一个基带输出。 集成多核RF装置被配置为同时将多个信道同时下变换为相应的下变频基带信号。 集成多核RF设备被配置为允许随时间动态地选择多个信道中的一个或多个。 还描述了恢复DSCC接收机IC的方法。
    • 9. 发明申请
    • TRAVELLING WAVE DISTRIBUTED ACTIVE ANTENNA RADIATOR STRUCTURES, HIGH FREQUENCY POWER GENERATION AND QUASI-OPTICAL FILTERING
    • 行波分布式主动式天线散热器结构,高频发电和准光滤波
    • US20120212383A1
    • 2012-08-23
    • US13282193
    • 2011-10-26
    • Kaushik SENGUPTASeyed Ali Hajimiri
    • Kaushik SENGUPTASeyed Ali Hajimiri
    • H01Q11/12
    • H01Q1/2283H01Q9/04H01Q13/10H01Q23/00
    • An integrated distributed active radiator (DAR) device includes first and second conductors disposed adjacent to each other. The conductors define curves which close on themselves to within a distance of a gap. The first conductor first end is electrically coupled to the second conductor second end across the gap. The second conductor first end is electrically coupled to the first conductor second end across the gap. At least one active element is configured to produce a self-oscillation current at a frequency f0. The self-oscillation current has a first direction in the first conductor and a second direction in the second conductor. The DAR device is configured to generate a harmonic current which has the same direction in both conductors. The DAR device is configured to efficiently radiate electromagnetic energy at a harmonic frequency and to substantially inhibit the radiation of electromagnetic energy at the frequency f0.
    • 集成分布式有源辐射器(DAR)装置包括彼此相邻布置的第一和第二导体。 导体定义了在间隙距离内自身闭合的曲线。 第一导体第一端电连接到穿过间隙的第二导体第二端。 第二导体第一端电连接到穿过间隙的第一导体第二端。 至少一个有源元件被配置为以频率f0产生自振荡电流。 自振荡电流在第一导体中具有第一方向,在第二导体中具有第二方向。 DAR器件被配置为产生在两个导体中具有相同方向的谐波电流。 DAR设备被配置为有效地辐射谐波频率的电磁能量并且基本上禁止在频率f0的电磁能量的辐射。
    • 10. 发明授权
    • Scalable reconfigurable concurrent filter for wide-bandwidth communication
    • 可扩展的可重配置并发滤波器,适用于宽带通信
    • US08208527B2
    • 2012-06-26
    • US12022624
    • 2008-01-30
    • Yu-Jiu WangSeyed Ali Hajimiri
    • Yu-Jiu WangSeyed Ali Hajimiri
    • H03H7/30H03H7/40H03K5/159
    • H03H15/00H01F2017/0046H03F3/45183H03F3/45475H03F3/72H03F2203/45138H03F2203/45506H03F2203/7206H03H7/18
    • The invention relates to a reconfigurable continuous FIR filter. The reconfigurable continuous FIR filter includes a delay line including at least two delay elements coupled in cascade. The reconfigurable continuous FIR filter also includes a filter section including at least three gain-phase elements. The filter section also includes a summing circuit having a plurality of inputs at least equal in number to the at least three gain-phase elements and one output. The reconfigurable continuous FIR filter is configured to exhibit a filter transfer function that is reconfigurable in real time. The invention also related to down-converters using the reconfigurable continuous FIR filter. The invention also related to electromagnetic wave receivers using the reconfigurable continuous FIR filter. The invention also relates to a method for reconfigurable real time continuous filtering.
    • 本发明涉及可重构的连续FIR滤波器。 可重构连续FIR滤波器包括延迟线,包括至少两个级联耦合的延迟元件。 可重构连续FIR滤波器还包括包括至少三个增益相位元件的滤波器部分。 滤波器部分还包括一个求和电路,该求和电路具有与至少三个增益相位元件至少相等的多个输入和一个输出。 可重构连续FIR滤波器被配置为呈现可实时重新配置的滤波器传递函数。 本发明还涉及使用可重构连续FIR滤波器的下变换器。 本发明还涉及使用可重构连续FIR滤波器的电磁波接收机。 本发明还涉及一种用于可重构实时连续滤波的方法。