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31. 发明申请

US20100176981A1 SPLIT ANALOG/DIGITAL POLYNOMIAL NONLINEAR TERM GENERATOR WITH REDUCED NUMBER OF ANALOG-TO-DIGITAL CONVERTERS 有权
标题翻译：具有减少数字到数字转换器数量的分立模拟/数字多项式非线性发电机
公开(公告)号：US20100176981A1
公开(公告)日：2010-07-15
申请号：US12687113
申请日：2010-01-13
申请人： Edward Keehr , Seyed Ali Hajimiri
发明人： Edward Keehr , Seyed Ali Hajimiri
IPC分类号： H03M1/12
CPC分类号： H04B1/109
摘要： A polynomial nonlinear term generator is configured to receive an RF signal. An analog cubic term generator generates an analog cubic term signal and an analog square term generator generates an analog square term signal, both derived from the RF signal. A cubic term mixer assembly mixes a local oscillator (LO) signal with the cubic term signal to generate a synthetic IM3 signal. A square term ADC provides a digital square term signal and a cubic term ADC provides a digital cubic term signal. At least one digital multiplier has a first multiplier input terminal configured to receive a selected one of the digital square term signal and the digital cubic term signal, and a second multiplier input terminal configured to receive the digital square term signal. The multiplier provides as output a digital IMn product where n is greater than 3. A corresponding method is also described.
摘要翻译：多项式非线性项发生器被配置为接收RF信号。模拟三次项发生器产生模拟三次项信号，并且模拟平方项发生器产生从RF信号导出的模拟平方项信号。立体词混合器组件将本地振荡器（LO）信号与三次项信号混合以产生合成的IM3信号。平方项ADC提供数字平方项信号，三次项ADC提供数字立方项信号。至少一个数字乘法器具有被配置为接收数字平方项信号和数字三次项信号中所选择的一个的第一乘法器输入端子，以及被配置为接收数字平方项信号的第二乘法器输入端子。乘数提供n大于3的数字IMn乘积作为输出。还描述了相应的方法。

32. 发明申请

US20100163545A1 FULLY INTEGRATED TEMPERATURE REGULATOR FOR BIOCHEMICAL APPLICATIONS 有权
标题翻译：全面综合温度调节器用于生物化学应用
公开(公告)号：US20100163545A1
公开(公告)日：2010-07-01
申请号：US12399320
申请日：2009-03-06
申请人： Hua Wang , Seyed Ali Hajimiri
发明人： Hua Wang , Seyed Ali Hajimiri
IPC分类号： H05B1/02
CPC分类号： G05D23/24 , G05D23/1906 , G05D23/22 , G05D23/27
摘要： The invention is an integrated temperature regulator that can be fabricated using conventional semiconductor processing technology. The integrated temperature regulator can include a reaction chamber, for example fabricated from PDMS, in which chemical or biochemical reactions of interest can be carried out. The temperature regular can also be used to regulate the temperature of some circuits, e.g. an effective-inductance-change based magnetic particle sensor, to achieve a stable operation performance, such as an improved sensitivity. The integrated temperature regulator includes as subcomponents a temperature sensing circuit that receives a thermal signal from the vicinity of the reaction chamber, a temperature reference circuit, and a temperature control circuit that controls a heater based at least in part on the difference between the sensed temperature and the reference temperature. The various subcomponents can be programmable.
摘要翻译：本发明是可以使用常规半导体处理技术制造的集成温度调节器。集成温度调节器可以包括例如由PDMS制造的反应室，其中可以进行感兴趣的化学或生物化学反应。温度常数也可用于调节某些电路的温度，例如基于有效电感变化的磁性粒子传感器，以实现稳定的操作性能，例如提高的灵敏度。集成温度调节器包括作为子部件的温度感测电路，其接收来自反应室附近的热信号，温度参考电路和温度控制电路，其至少部分地基于感测温度之间的差异来控制加热器和参考温度。各个子部件可以编程。

33. 发明授权

US07724103B2 Ultra-high frequency self-sustaining oscillators, coupled oscillators, voltage-controlled oscillators, and oscillator arrays based on vibrating nanoelectromechanical resonators 有权
标题翻译：基于振动纳米机电谐振器的超高频自维持振荡器，耦合振荡器，压控振荡器和振荡器阵列
公开(公告)号：US07724103B2
公开(公告)日：2010-05-25
申请号：US12030815
申请日：2008-02-13
申请人： Xiao-Li Feng , Christopher J. White , Seyed Ali Hajimiri , Michael L. Roukes
发明人： Xiao-Li Feng , Christopher J. White , Seyed Ali Hajimiri , Michael L. Roukes
IPC分类号： H03B5/42 , H03B5/30 , G01M7/00
CPC分类号： H03B5/30 , H03L1/02 , H03L7/06
摘要： A self-sustaining ultra-high frequency oscillator and method enable the ability to oscillate and output a signal. A balanced bridge circuit is utilized to null an embedding background response. A first vibrating nanoelectromechanical (NEMS) beam resonator is part of one of the branches of the balanced bridge circuit and determines the frequency of the oscillator's output signal. A feedback loop establishes and sets oscillation conditions of the oscillator's signal. Further, the feedback loop connects an output of the first resonator to an input of the balanced bridge circuit.
摘要翻译：自持式超高频振荡器和方法能够振荡和输出信号。使用平衡桥电路来消除嵌入背景响应。第一个振动纳米机电（NEMS）光束谐振器是平衡桥接电路的一个分支的一部分，并确定振荡器输出信号的频率。反馈回路建立并设置振荡器信号的振荡条件。此外，反馈环路将第一谐振器的输出连接到平衡桥式电路的输入端。

34. 发明申请

US20090096554A1 2D TRANSMISSION LINE-BASED APPARATUS AND METHOD 失效
标题翻译： 2D传输线路设备和方法
公开(公告)号：US20090096554A1
公开(公告)日：2009-04-16
申请号：US12252713
申请日：2008-10-16
申请人： Ehsan Afshari , Harish Bhat , Seyed Ali Hajimiri
发明人： Ehsan Afshari , Harish Bhat , Seyed Ali Hajimiri
IPC分类号： H01P3/00
CPC分类号： H01P5/12
摘要： A power combiner comprising an LC lattice structure is shown, together with a method for generating a planar wave front. The LC structure can comprise constant or voltage dependent capacitors. Either the delay or the characteristic impedance of the two-dimensional transmission line formed by the LC lattice structure are kept constant. A planar wave propagating along one direction of the transmission line gradually experiences higher impedances at the edges, creating a lower resistance path for the current in the middle. This funnels more power to the center as the wave propagates.
摘要翻译：示出了包括LC晶格结构的功率组合器以及用于产生平面波前的方法。 LC结构可以包括恒定或依赖于电压的电容器。由LC晶格结构形成的二维传输线的延迟或特性阻抗保持恒定。沿着传输线的一个方向传播的平面波逐渐在边缘处经受较高的阻抗，为中间的电流产生较低的电阻路径。随着波浪的传播，这个中心的力量更多。

35. 发明申请

US20090075612A1 EQUALIZATION OF THIRD-ORDER INTERMODULATION PRODUCTS IN WIDEBAND DIRECT CONVERSION RECEIVER 有权
标题翻译：宽带直接转换接收机中第三方互调产品的均衡
公开(公告)号：US20090075612A1
公开(公告)日：2009-03-19
申请号：US12233314
申请日：2008-09-18
申请人： Edward Keehr , Seyed Ali Hajimiri
发明人： Edward Keehr , Seyed Ali Hajimiri
IPC分类号： H04B17/00 , H04B1/10 , H03B1/00
CPC分类号： H03D7/14 , H04B1/123
摘要： 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.
摘要翻译：用于最小化不期望的奇数非线性失真产物的前馈误差补偿接收器。接收机包括被配置为接收输入信号的第一接收器路径。第一接收机路径输出包括至少一个基带（BB）频率的信号。至少一个第二接收机路径被配置为接收输入信号并提供第二接收机路径输出信号。第二接收器路径包括至少一个奇数阶非线性失真参考发生器。所述至少一个奇数非线性失真参考发生器和所述混频器被配置为产生合成奇数非线性失真信号。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机路径输出的输出信号，并且组合信号，使得奇数阶非线性失真信号在组合元件的输出处基本衰减。

36. 发明授权

US07505505B2 Crosstalk equalizer 有权
标题翻译：串扰均衡器
公开(公告)号：US07505505B2
公开(公告)日：2009-03-17
申请号：US11071413
申请日：2005-03-02
申请人： James Buckwalter , Seyed Ali Hajimiri
发明人： James Buckwalter , Seyed Ali Hajimiri
IPC分类号： H04L7/00
CPC分类号： H04L25/03878 , H04L7/0087 , H04L7/033
摘要： Apparatus and methods for equalizing the jitter on a communication line attributable to uncorrelated data coupled from one or more data lines in close proximity to the communication line. The crosstalk jitter induced by adjacent data lines can be equalized by detecting one or more data or state transitions in the adjacent data lines and comparing the timing of the one or more data or state transitions to the timing of one or more data or state transitions on the communication line. The state transitions can be compared to determine a mode and corresponding level of coupling. A time delay contributed by a variable time delay positioned in series with the communication line can be varied based in part on the level of coupling.
摘要翻译：用于均衡通信线路上的抖动的装置和方法，其归因于从紧邻通信线路的一个或多个数据线耦合的不相关数据。通过检测相邻数据线中的一个或多个数据或状态转换并将一个或多个数据或状态转换的定时与一个或多个数据或状态转换的定时进行比较，相邻数据线引起的串扰抖动可以相等化通信线路。可以比较状态转换以确定模式和相应的耦合水平。部分基于耦合水平可以改变与通信线路串联定位的可变时间延迟所引起的时间延迟。

37. 发明授权

US07502631B2 Monolithic silicon-based phased arrays for communications and radars 有权
标题翻译：用于通信和雷达的单片硅基相控阵列
公开(公告)号：US07502631B2
公开(公告)日：2009-03-10
申请号：US10988199
申请日：2004-11-12
申请人： Hossein Hashemi , Xiang Guan , Seyed Ali Hajimiri
发明人： Hossein Hashemi , Xiang Guan , Seyed Ali Hajimiri
IPC分类号： H04B1/38 , H04B1/06 , H04M1/00
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 4.8 GHz. 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 19.2 GHz frequency synthesizer locks the VCO frequency to a 75 MHz external reference. Each signal path achieves a gain of 43 dB, a noise figure of 7.4 dB, and an IIP3 of −11 dBm. The 8-path array achieves an array gain of 61 dB, a peak-to-null ratio of 20 dB, and improves the signal-to-noise ratio at the output by 9 dB.
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19.2 GHz频率合成器将VCO频率锁定到75 MHz外部参考。每个信号路径的增益为43 dB，噪声系数为7.4 dB，IIP3为-11 dBm。 8路径阵列实现了61 dB的阵列增益，20 dB的峰 - 无效比，并将输出端的信噪比提高了9 dB。

38. 发明授权

US07489194B2 Common gate with resistive feed-through low noise amplifier 有权
标题翻译：具有电阻馈通低噪声放大器的公共门
公开(公告)号：US07489194B2
公开(公告)日：2009-02-10
申请号：US11633720
申请日：2006-12-05
申请人： Seyed-Ali Hajimiri , Xiang Guan
发明人： Seyed-Ali Hajimiri , Xiang Guan
IPC分类号： H03F3/16
CPC分类号： H03F3/193 , H03F2200/294 , H03F2200/372
摘要： A radio-frequency amplifier is provided. The radio-frequency 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。

39. 发明申请

US20090002071A1 Distributed Circular Geometry Power Amplifier Architecture 有权
标题翻译：分布式圆形几何功率放大器架构
公开(公告)号：US20090002071A1
公开(公告)日：2009-01-01
申请号：US12209944
申请日：2008-09-12
申请人： Ichiro Aoki , Seyed-Ali Hajimiri , David B. Rutledge , Scott David Kee
发明人： Ichiro Aoki , Seyed-Ali Hajimiri , David B. Rutledge , Scott David Kee
IPC分类号： H03F3/26
CPC分类号： H03F1/223 , H03F3/265 , H03F3/423 , H03F3/604 , H03F2200/534 , H03F2200/537 , H03F2200/541
摘要： The present invention discloses a distributed power amplifier topology and device that efficiently and economically enhances the power output of an RF signal to be amplified. The power amplifier comprises a plurality of push-pull amplifiers interconnected in a novel circular geometry that preferably function as a first winding of an active transformer having signal inputs of adjacent amplification devices driven with an input signal of equal magnitude and opposite phase. The topology also discloses the use of a secondary winding that matches the geometry of primary winding and variations thereof that serve to efficiently combine the power of the individual power amplifiers. The novel architecture enables the design of low-cost, fully-integrated, high-power amplifiers in the RF, microwave, and millimeter-wave frequencies.
摘要翻译：本发明公开了一种分布式功率放大器拓扑和器件，其有效且经济地增强待放大的RF信号的功率输出。功率放大器包括以新颖的圆形几何互连的多个推挽放大器，其优选地用作有源变压器的第一绕组，该有源变压器的信号输入由相等幅度和相反相位的输入信号驱动的相邻放大器件的信号输入。该拓扑还公开了使用与初级绕组的几何形状及其变化相匹配的次级绕组，其用于有效地组合各个功率放大器的功率。新颖的架构使得能够在RF，微波和毫米波频率中设计低成本，完全集成的大功率放大器。

40. 发明授权

US07425869B2 Distributed circular geometry power amplifier architecture 有权
标题翻译：分布式圆形几何功率放大器架构
公开(公告)号：US07425869B2
公开(公告)日：2008-09-16
申请号：US11480113
申请日：2006-06-30
申请人： Ichiro Aoki , Seyed-Ali Hajimiri , David B. Ruthledge , Scott David Kee
发明人： Ichiro Aoki , Seyed-Ali Hajimiri , David B. Ruthledge , Scott David Kee
IPC分类号： H03F3/26
CPC分类号： H03F1/223 , H03F3/265 , H03F3/423 , H03F3/604 , H03F2200/534 , H03F2200/537 , H03F2200/541
摘要： The present invention discloses a distributed power amplifier topology and device that efficiently and economically enhances the power output of an RF signal to be amplified. The power amplifier comprises a plurality of push-pull amplifiers interconnected in a novel circular geometry that preferably function as a first winding of an active transformer having signal inputs of adjacent amplification devices driven with an input signal of equal magnitude and opposite phase. The topology also discloses the use of a secondary winding that matches the geometry of primary winding and variations thereof that serve to efficiently combine the power of the individual power amplifiers. The novel architecture enables the design of low-cost, fully-integrated, high-power amplifiers in the RF, microwave, and millimeter-wave frequencies.
摘要翻译：本发明公开了一种分布式功率放大器拓扑和器件，其有效且经济地增强待放大的RF信号的功率输出。功率放大器包括以新颖的圆形几何互连的多个推挽放大器，其优选地用作有源变压器的第一绕组，该有源变压器的信号输入由相等幅度和相反相位的输入信号驱动的相邻放大器件的信号输入。该拓扑还公开了使用与初级绕组的几何形状及其变化相匹配的次级绕组，其用于有效地组合各个功率放大器的功率。新颖的架构使得能够在RF，微波和毫米波频率中设计低成本，完全集成的大功率放大器。

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