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1. 发明申请

WO2009143158A1 GENERATION OF HIGH-FREQUENCY, HIGH-POWER ELECTRICAL SIGNALS FROM LOW-FREQUENCY, LOW-POWER LATTICE NETWORK STRUCTURES AS SOURCES 审中-公开
标题翻译：从低频，低功耗的网络结构作为源的高频电力信号的生成
公开(公告)号：WO2009143158A1
公开(公告)日：2009-11-26
申请号：PCT/US2009/044527
申请日：2009-05-19
申请人： CORNELL UNIVERSITY , AFSHARI, Ehsan , BHAT, Harish
发明人： AFSHARI, Ehsan , BHAT, Harish
IPC分类号： H04B1/28
CPC分类号： H01P1/20 , H03F1/565 , H03F3/602 , H03F2200/222 , H03H7/48
摘要： An apparatus (100, 100a-g, 200) and method for outputting high-frequency, high-power signals from low-frequency, low-power input is disclosed. The apparatus (100, 100a-g, 200) and method may provide a two-dimensional nonlinear lattice (100, 100a-g) having a plurality of inductors (102, 102a-f) and voltage-dependent capacitors (104, 104a-f) intersecting at a plurality of nodes (106, 106a-f). Two or more adjacent boundaries of the nonlinear lattice (100, 100a-g) may be provided with input signals which constructively interfere to output a signal of substantially higher amplitude and higher frequency than those of the input signals.
摘要翻译：公开了一种用于从低频，低功率输入输出高频高功率信号的装置（100,100a-g，200）和方法。该装置（100,100a-g，200）和方法可以提供具有多个电感器（102,102a-f）和电压相关电容器（104,104a-g）的二维非线性晶格（100,100a-g） f）在多个节点（106,106a-f）处相交。非线性晶格（100,100a-g）的两个或更多个相邻边界可以被提供有建设性地干扰以输出比输入信号的信号显着更高的幅度和更高频率的信号的输入信号。

2. 发明申请

WO2011156379A3 RESONATOR CIRCUIT AND AMPLIFIER CIRCUIT 审中-公开
公开(公告)号：WO2011156379A3
公开(公告)日：2011-12-15
申请号：PCT/US2011/039451
申请日：2011-06-07
申请人： CORNELL UNIVERSITY , AFSHARI, Ehsan , LEE, Wooram
发明人： AFSHARI, Ehsan , LEE, Wooram
IPC分类号： H03B5/18 , H01P7/00 , H03F1/26
摘要： A passive frequency divider in a CMOS process. More specifically, an electrical distributed parametric oscillator to realize a passive CMOS frequency divider with low phase noise. Instead of using active devices, which are the main sources of noise and power consumption, an oscillation at half of the input frequency is sustained by the parametric process based on nonlinear interaction with the input signal. For example, one embodiment is a 20 GHz frequency divider utilizing a CMOS varactor and made in a 0.13 μιτι CMOS process. In this embodiment: (i) without any dc power consumption, 600 mV differential output amplitude can be achieved for an input amplitude of 600 mV; and (ii) the input frequency ranged from 18.5 GHz to 23.5 GHz with varactor tuning. In this embodiment, the output phase noise is almost 6 dB lower than that of the input signal for all offset frequencies up to 1 MHz. Also, a resonant parametric amplifier with a low noise figure (NF) by exploiting the noise squeezing effect. Noise squeezing occurs through the phase- sensitive amplification process and suppresses one of two quadrature components in input noise. When the input signal is only in the direction of the non-suppressed quadrature component, squeezing can lower that NF by almost 3 dB. The resonant structure of the proposed amplifier achieves the squeezing effect using a low number of LC elements.

3. 发明申请

WO2012054826A1 AN OSCILLATOR CIRCUIT AND SYSTEM 审中-公开
标题翻译：振荡器电路和系统
公开(公告)号：WO2012054826A1
公开(公告)日：2012-04-26
申请号：PCT/US2011/057276
申请日：2011-10-21
申请人： CORNELL UNIVERSITY , AFSHARI, Ehsan , LI, Guansheng
发明人： AFSHARI, Ehsan , LI, Guansheng
IPC分类号： H03B5/08 , H04B1/40
CPC分类号： H03B5/1265 , H03B5/1212 , H03B5/1225 , H03B5/1228 , H03B2200/0048 , H03B2200/005 , H03B2201/0266
摘要： The present invention is directed to a distributed dual-band oscillator suitable for low-phase-noise applications. The invention is configured to switch between the odd and even resonant modes of a fourth-order resonator. The switches used for mode selection do not conduct current and therefore do not affect the quality factor (Q) of the resonator. The benefit of this feature is relatively low phase noise.
摘要翻译：本发明涉及适用于低相位噪声应用的分布式双频振荡器。本发明被配置为在四阶谐振器的奇偶谐振模式之间切换。用于模式选择的开关不会导通电流，因此不影响谐振器的品质因数（Q）。该功能的优点是相位相对较低。

4. 发明申请

WO2011078857A1 ELECTRICAL PRISM: A HIGH QUALITY FACTOR FILTER FOR MILLIMETER-WAVE AND TERAHERTZ FREQUENCIES 审中-公开
标题翻译：电气公司：一个高质量因子滤波器，用于米勒波特和特拉法茨频率
公开(公告)号：WO2011078857A1
公开(公告)日：2011-06-30
申请号：PCT/US2009/069261
申请日：2009-12-22
申请人： CORNELL UNIVERSITY , AFSHARI, Ehsan , MOMENI, Omeed
发明人： AFSHARI, Ehsan , MOMENI, Omeed
IPC分类号： H01P1/20 , H01P1/203
CPC分类号： G02B1/007 , H01Q15/0013
摘要： Filters and methods which may be used with millimeter-wave and terahertz frequency range are disclosed. The filter (48, 54, 68) is formed as an electrical prism which may include a first lattice (10, 30) forming an interface (50, 56, 70) with a second lattice (10, 30). Each lattice (10, 30) may include a plurality of passive elements, such as inductors (12), capacitors (14), and the like. The first lattice (10, 30) may include an input (72) disposed at an input boundary (76) thereof, while the second lattice (10, 30) may include an output (74) disposed at an output boundary (78) thereof. Furthermore, the first and second lattices (10, 30) may be configured to receive a signal at the input (72) of the first lattice (10, 30), propagate the signal to the interface (50, 56, 70), and direct the signal to the outputs (74) of the second lattice (10, 30).
摘要翻译：公开了可以与毫米波和太赫兹频率范围一起使用的滤波器和方法。过滤器（48,54,68）形成为电棱镜，其可以包括形成具有第二格子（10,30）的界面（50,56,70）的第一格子（10,30）。每个晶格（10,30）可以包括多个无源元件，例如电感器（12），电容器（14）等。第一晶格（10,30）可以包括设置在其输入边界（76）处的输入（72），而第二格（10,30）可包括布置在其输出边界（78）处的输出（74）。此外，第一和第二晶格（10,30）可以被配置为在第一晶格（10,30）的输入端（72）处接收信号，将信号传播到接口（50,56,70），以及将信号引导到第二晶格（10,30）的输出端（74）。

5. 发明申请

WO2009146242A1 PERFORMING ANALOG-TO-DIGITAL CONVERSION BY COMPUTING DELAY TIME BETWEEN TRAVELING WAVES IN TRANSMISSION LINES 审中-公开
标题翻译：通过计算传输线上的行驶时间之间的延迟时间来执行模拟数字转换
公开(公告)号：WO2009146242A1
公开(公告)日：2009-12-03
申请号：PCT/US2009/043241
申请日：2009-05-08
申请人： BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM , CORNELL UNIVERSITY , HASSIBI, Arjang , AFSHARI, Ehsan , ZHANG, Chaoming , ABRAHAM, Jacob
发明人： HASSIBI, Arjang , AFSHARI, Ehsan , ZHANG, Chaoming , ABRAHAM, Jacob
IPC分类号： H03M1/12
CPC分类号： H03M1/502 , H03M1/0682
摘要： A method and device for converting an analog input electrical signal to a digital signal. A plurality of integrated active and/or passive transmission lines may be implemented with signal-dependant propagation velocities. The delay differences of pulses traveling through these transmission lines are compared, and the collective results are used to evaluate and subsequently quantize the input signal.
摘要翻译：一种用于将模拟输入电信号转换为数字信号的方法和装置。多个集成的有源和/或无源传输线可以用信号相关的传播速度来实现。比较穿过这些传输线的脉冲的延迟差异，并且使用集合结果来评估并随后量化输入信号。

6. 发明申请

WO2007035956A1 ELECTRICAL FUNNEL: A NOVEL BROADBAND SIGNAL COMBINING METHOD 审中-公开
标题翻译：电动飞机：新型宽带信号组合方法
公开(公告)号：WO2007035956A1
公开(公告)日：2007-03-29
申请号：PCT/US2006/037376
申请日：2006-09-22
申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY , AFSHARI, Ehsan , HAJIMIRI, Seyed Ali
发明人： AFSHARI, Ehsan , HAJIMIRI, Seyed Ali
IPC分类号： H01P5/02 , H03H7/52 , H03H7/48 , H03H11/36
CPC分类号： H01P5/02 , H01P5/12
摘要： An electrical signal transformation device (100) configured for emulation of physical, for example, optical, phenomena and/or a mathematical or logical process. The device employs a first plurality (X oriented Li j ) , second plurality (Y oriented Lij) and third plurality (Cij) of electrical components each having a first terminal and a second terminal. The first plurality and second plurality of electrical components are arranged along a first direction (X) and a second direction (Y) respectively, to form a planar two dimensional lattice (110) . The first plurality of electrical components (X oriented Lij) are configured to provide at least one of a constant signal propagation velocity and/or amplitude while the second plurality of electrical components (Y oriented Lij ) are configured to provide at least one of a varying signal propagation velocity and/or amplitude. The lattice includes at least two input signal nodes and at least one output signal node and is configured to transform and communicate a plurality of input signals from the input node to the output node .
摘要翻译：一种电信号变换装置（100），被配置用于仿真物理，例如光学，现象和/或数学或逻辑过程。该装置采用分别具有第一端子和第二端子的第一多个（X取向Li j），第二多个（Y取向Lij）和第三多个（Cij）电气部件。第一多个和第二多个电气部件分别沿着第一方向（X）和第二方向（Y）布置，以形成平面二维网格（110）。第一组多个电组件（X取向Lij）被配置成提供恒定的信号传播速度和/或振幅中的至少一个，而第二组多个电组件（Y定向的Lij）被配置成提供至少一个变化的信号传播速度和/或振幅。晶格包括至少两个输入信号节点和至少一个输出信号节点，并且被配置为将多个输入信号从输入节点变换和传送到输出节点。

7. 发明申请

WO2016134384A1 DEVICE FOR TERAHERTZ SIGNAL GENERATION AND TRANSMITTER 审中-公开
标题翻译： TERAHERTZ信号发生器和发射机的设备
公开(公告)号：WO2016134384A1
公开(公告)日：2016-08-25
申请号：PCT/US2016/018991
申请日：2016-02-22
申请人： CORNELL UNIVERSITY
发明人： HAN, Ruonan , AFSHARI, Ehsan
IPC分类号： H03B5/20 , H03B27/00 , H03B28/00
CPC分类号： H03B5/1847 , H03B5/1215 , H03B5/1231 , H03B2200/0008 , H03B2200/0062 , H03B2200/007 , H03B2200/0076 , H03B2200/0084
摘要： A high-power transmitter with a fully-integrated phase Iocking capability is disclosed and characterized. Also provided herein is a THz radiator structure based on a return-path gap coupler, which enables the high-power generation of the disclosed transmitter, and a self-feeding oscillator suitable for use with the transmitter.
摘要翻译：公开并表征了具有完全集成相位Iocking能力的大功率发射器。本文还提供了一种基于返回路径间隙耦合器的THz辐射器结构，其能够实现所公开的发射机的高功率发生，以及适于与发射机一起使用的自馈振荡器。

8. 发明申请

WO2015120374A1 SCALABLE TERAHERTZ PHASED ARRAY AND METHOD 审中-公开
标题翻译：可定量的TERAHERTZ相位阵列和方法
公开(公告)号：WO2015120374A1
公开(公告)日：2015-08-13
申请号：PCT/US2015/014993
申请日：2015-02-09
申请人： CORNELL UNIVERSITY
发明人： TOUSI, Yahya , AFSHARI, Ehsan
IPC分类号： H03B28/00
CPC分类号： H03B5/24 , H01Q3/36 , H03B2200/0084
摘要： A device and method for terahertz signal generation are disclosed. Oscillators are arranged in a two-dimensional array, each oscillator connected to a corresponding antenna. Each oscillator is unidirectional connected to its adjacent oscillators by a phase shifter. A method for generating a steerable terahertz signal utilizes an array of oscillators connected by corresponding phase shifters. A terahertz signal having a fundamental frequency is generated using the array. The phase shift of one or more of the phase shifters is varied in order to vary the fundamental frequency and/or steer the signal generated by the array.
摘要翻译：公开了一种用于太赫兹信号产生的装置和方法。振荡器以二维阵列排列，每个振荡器连接到相应的天线。每个振荡器通过移相器单向连接到其相邻的振荡器。用于产生可导向的太赫兹信号的方法利用由相应的移相器连接的振荡器阵列。使用阵列产生具有基频的太赫兹信号。改变一个或多个移相器的相移以便改变基频并/或引导阵列产生的信号。

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