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公开(公告)号：US10211528B2
公开(公告)日：2019-02-19
申请号：US15157889
申请日：2016-05-18
摘要： A fully-programmable digital-to-impulse radiator with a programmable delay is discussed herein. The impulse radiator may be part of an array of impulse radiators. Each individual element of the array may be equipped with an integrated programmable delay that can shift the timing of a digital trigger. The digital trigger may be fed to an amplifier, switch, and impulse matching circuitry, whereas the data signal path may be provided from a separate path. An antenna coupled to the impulse matching circuitry may then radiate ultra-short impulses. The radiating array may provide the ability to control delay at each individual element, perform near-ideal spatial combing, and/or beam steering.
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2.发明申请SYSTEMS AND METHODS FOR ACTIVE CANCELLATION FOR IMPROVING ISOLATION OF TRANSMISSION GATES IN HIGH-FREQUENCY ANALOG TO DIGITAL CONVERTERS 有权用于改进高频模拟到数字转换器的隔离栅隔离的主动取消的系统和方法公开(公告)号：US20150229319A1
公开(公告)日：2015-08-13
申请号：US14596582
申请日：2015-01-14
申请人： Himanshu Aggrawal , Aydin Babakhani
发明人： Himanshu Aggrawal , Aydin Babakhani
CPC分类号： H03M1/12 , G11C27/02 , G11C27/024 , H03M1/1245 , H04B1/0475 , H04B1/0483
摘要： An active cancellation system may provide a first and second transmission gates that are fed with an input signal and a complimentary signal, respectively. The first transmission gate may be switched on/off, and a second transmission gate may remain off at all times. When switched off, the first transmission gate may provide a leakage signal resulting from leakage in current, especially at high input frequencies, which is detrimental to performance. The complimentary signal fed to the second transmission gate is out of phase with the input signal, but identical in amplitude. Thus, second transmission gate may output a signal that can cancel out the leakage signal from the first transmission gate.
摘要翻译： 主动取消系统可以提供分别馈送有输入信号和互补信号的第一和第二传输门。 第一传输门可以被打开/关闭，并且第二传输门可以始终保持关闭。 当关闭时，第一传输门可以提供由电流泄漏导致的泄漏信号，特别是在高输入频率下，这对性能有害。 馈送到第二传输门的补码信号与输入信号异相，但振幅相同。 因此，第二传输门可以输出可以抵消来自第一传输门的泄漏信号的信号。
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公开(公告)号：US09857447B2
公开(公告)日：2018-01-02
申请号：US14041212
申请日：2013-09-30
申请人： Xuebei Yang , Charles Chen , Payam Seifi , Aydin Babakhani
发明人： Xuebei Yang , Charles Chen , Payam Seifi , Aydin Babakhani
CPC分类号： G01R33/60 , G01R33/302
摘要： A method includes generating, from an integrated oscillator circuit, an oscillating output signal and generating, by an integrated power amplifier (PA) circuit, an amplified oscillating output signal based on the oscillating output signal. The method further includes receiving, by integrated receiver amplifier circuit, an electron spin resonance (ESR) signal from biological samples that include a magnetic species and generating, by the integrated receiver amplifier circuit, an amplified ESR signal based on the received ESR signal. The method further includes receiving, by the integrated receiver amplifier circuit, an electron spin resonance (ESR) signal from magnetic nanoparticles that are loaded with drugs or attached to human cells.
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公开(公告)号：US20170242091A1
公开(公告)日：2017-08-24
申请号：US15591623
申请日：2017-05-10
申请人： Xuebei Yang , Charles Chen , Payam Seifi , Aydin Babakhani
发明人： Xuebei Yang , Charles Chen , Payam Seifi , Aydin Babakhani
IPC分类号： G01R33/60
CPC分类号： G01R33/60 , G01R33/302
摘要： An integrated electron spin resonance (ESR) circuit chip includes a chip substrate, a transmitter circuit, and a receiver circuit. The transmitter circuit and receiver circuit are disposed on the chip substrate. The transmitter circuit includes an oscillator circuit configured to generate an oscillating output signal and a power amplifier (PA) circuit configured to generate an amplified oscillating output signal based on the oscillating output signal. The receiver circuit receives an ESR signal from an ESR probe. The receiver circuit includes a receiver amplifier circuit configured to generate an amplified ESR signal based on the received ESR signal, a mixer circuit configured to receive the amplified ESR signal and to down-convert the amplified ESR signal to a baseband signal, and a baseband amplifier circuit configured to generate an amplified baseband signal based on the baseband signal.
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公开(公告)号：US20160344108A1
公开(公告)日：2016-11-24
申请号：US15157889
申请日：2016-05-18
CPC分类号： H01Q3/2682 , H01Q3/38 , H01Q13/085 , H01Q21/064
摘要： A fully-programmable digital-to-impulse radiator with a programmable delay is discussed herein. The impulse radiator may be part of an array of impulse radiators. Each individual element of the array may be equipped with an integrated programmable delay that can shift the timing of a digital trigger. The digital trigger may be fed to an amplifier, switch, and impulse matching circuitry, whereas the data signal path may be provided from a separate path. An antenna coupled to the impulse matching circuitry may then radiate ultra-short impulses. The radiating array may provide the ability to control delay at each individual element, perform near-ideal spatial combing, and/or beam steering.
摘要翻译： 本文讨论了具有可编程延迟的完全可编程数字到脉冲散热器。 脉冲辐射器可以是脉冲散热器阵列的一部分。 阵列的每个单独元件可以配备可以移动数字触发的定时的集成可编程延迟。 数字触发可以被馈送到放大器，开关和脉冲匹配电路，而数据信号路径可以从单独的路径提供。 耦合到脉冲匹配电路的天线然后可以辐射超短脉冲。 辐射阵列可以提供控制每个单独元件的延迟，执行接近理想的空间梳理和/或光束转向的能力。
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公开(公告)号：US20090289869A1
公开(公告)日：2009-11-26
申请号：US12454815
申请日：2009-05-22
CPC分类号： H01Q15/08 , H01L2224/16225 , H01L2224/45144 , H01L2224/48091 , H01L2224/48227 , H01L2924/1461 , H01Q19/06 , H01Q23/00 , H01L2924/00014 , H01L2924/00
摘要： The invention relates to an antenna structure for coupling electromagnetic energy between a chip and an off-chip element, including a first resonant structure disposed on or in a chip. The first resonant structure is configured to have a first resonant frequency. The antenna structure also includes a second resonant structure disposed on or in an off-chip element. The second resonant structure is configured to have a second resonant frequency substantially the same as the first resonant frequency. The first resonant structure and the second resonant structure are mutually disposed within a near field distance of each other to form a coupled antenna structure that is configured to couple electromagnetic energy between the chip and the off-chip element. The electromagnetic energy has a selected wavelength in a wavelength range from microwave to sub-millimeter wave. The invention also relates to a method of calculating dimensions for a highly coupled antenna structure.
摘要翻译： 本发明涉及一种用于在芯片和片外元件之间耦合电磁能的天线结构，包括设置在芯片上或芯片中的第一谐振结构。 第一谐振结构被配置为具有第一谐振频率。 天线结构还包括设置在片外元件上或芯片外元件上的第二谐振结构。 第二谐振结构被配置为具有与第一谐振频率基本相同的第二谐振频率。 第一共振结构和第二谐振结构相互配置在彼此的近场距离内，以形成耦合的天线结构，其被配置为在芯片和片外元件之间耦合电磁能。 电磁能在从微波到亚毫米波的波长范围内具有选定的波长。 本发明还涉及一种用于计算高度耦合的天线结构的尺寸的方法。
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公开(公告)号：US20070259632A1
公开(公告)日：2007-11-08
申请号：US11744278
申请日：2007-05-04
申请人： Aydin Babakhani , David Rutledge , Seyed Hajimiri
发明人： Aydin Babakhani , David Rutledge , Seyed Hajimiri
IPC分类号： H04B1/04
CPC分类号： H04B1/04
摘要： The invention is a radio transmitter that includes an antenna having at least one driven element and at least one reflector element. The driven element is electrically coupled to a radio carrier source. At least one of the driven elements or the at least one reflector element, includes at least one switch to modulate the radio carrier. Also, a secure communication system includes a radio transmitter configured to transmit a modulated signal within an information beam width. Also, a method for modulating a radio signal includes the steps of causing the transmitted carrier signal to be modulated by the modulation signal in response to switching the at least one reflector switch. Also, a method for selecting desirable antenna reflector switch combinations includes performing a mathematical simulation to determine whether the combination of reflector switch positions results in a modulated signal that can be demodulated within an information beam width.
摘要翻译： 本发明是一种无线电发射机，其包括具有至少一个从动元件和至少一个反射器元件的天线。 从动元件电耦合到无线电载体源。 驱动元件或至少一个反射器元件中的至少一个包括至少一个调制无线电载体的开关。 此外，安全通信系统包括被配置为在信息波束宽度内发送调制信号的无线电发射机。 此外，一种用于调制无线电信号的方法包括以下步骤：响应于切换至少一个反射器开关，使所发送的载波信号由调制信号进行调制。 此外，用于选择期望的天线反射器开关组合的方法包括执行数学模拟以确定反射器开关位置的组合是否产生可在信息波束宽度内被解调的调制信号。
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公开(公告)号：US10204697B2
公开(公告)日：2019-02-12
申请号：US15442638
申请日：2017-02-25
申请人： Himanshu Aggrawal , Aydin Babakhani
发明人： Himanshu Aggrawal , Aydin Babakhani
摘要： A novel nonlinear impulse sampler is presented that provides a clock sharpening circuit, sampling stage, and post-sampling block. The clock sharpening circuit sharpens the incoming clock while acting as a buffer, and the sharpened clock is fed to the input of the sampling stage. The impulse sampling stage has two main transistors, where one transistor generates the impulse and the other transistor samples the input signal. Post-sampling block processes the sampled signal and acts as a sample and hold circuit. The architecture uses an ultrafast transmission-line based inductive peaking technique to turn on a high-speed sampling bipolar transistor for a few picoseconds. It is shown that the sampler can detect impulses as short as 100 psec or less.
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9.发明授权公开(公告)号：US09246505B2
公开(公告)日：2016-01-26
申请号：US14596582
申请日：2015-01-14
申请人： Himanshu Aggrawal , Aydin Babakhani
发明人： Himanshu Aggrawal , Aydin Babakhani
CPC分类号： H03M1/12 , G11C27/02 , G11C27/024 , H03M1/1245 , H04B1/0475 , H04B1/0483
摘要： An active cancellation system may provide a first and second transmission gates that are fed with an input signal and a complimentary signal, respectively. The first transmission gate may be switched on/off, and a second transmission gate may remain off at all times. When switched off, the first transmission gate may provide a leakage signal resulting from leakage in current, especially at high input frequencies, which is detrimental to performance. The complimentary signal fed to the second transmission gate is out of phase with the input signal, but identical in amplitude. Thus, second transmission gate may output a signal that can cancel out the leakage signal from the first transmission gate.
摘要翻译： 主动取消系统可以提供分别馈送有输入信号和互补信号的第一和第二传输门。 第一传输门可以被打开/关闭，并且第二传输门可以始终保持关闭。 当关闭时，第一传输门可以提供由电流泄漏导致的泄漏信号，特别是在高输入频率下，这对性能有害。 馈送到第二传输门的补码信号与输入信号异相，但振幅相同。 因此，第二传输门可以输出可以抵消来自第一传输门的泄漏信号的信号。
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公开(公告)号：US20130027244A1
公开(公告)日：2013-01-31
申请号：US13600930
申请日：2012-08-31
IPC分类号： G01S13/89
CPC分类号： G01S13/89 , H01Q1/2283 , H01Q7/00 , H01Q21/061
摘要： Systems and method for near-field millimeter wave imaging are provided, in particular, near-field millimeter wave imaging systems and methods that enable sub-wavelength resolution imaging by scanning objects with sub-wavelength probe elements and capturing and measuring phase and intensity of reflected energy to generate images.
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