| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Quantum limited josephson amplifier with spatial separation between spectrally degenerate signal and idler modes | US15581770 | 2017-04-28 | US10141928B2 | 2018-11-27 | Baleegh Abdo |
| A technique relates to a quantum-limited microwave amplifier. A Josephson ring modulator (JRM) is connected to a first lumped-element resonator. The first lumped-element resonator includes one or more first lumped elements. A second lumped-element resonator is connected to the JRM, and the second lumped-element resonator includes one or more second lumped elements. The JRM, the first lumped-element resonator, and the second-lumped element resonator form a Josephson parametric converter (JPC). The one or more first lumped elements and the one or more second lumped elements have a value that is the same, thereby configuring the JPC to be spectrally degenerate. | ||||||
| 42 | Multimode Josephson parametric converter: coupling Josephson ring modulator to metamaterial | US15443120 | 2017-02-27 | US10056885B2 | 2018-08-21 | Baleegh Abdo |
| A technique relates to operating a multimode Josephson parametric converter as a multimode quantum limited amplifier. The multimode Josephson parametric converter receives multiple quantum signals in parallel at different resonance frequencies. The multimode Josephson parametric converter amplifies simultaneously the multiple quantum signals, according to pump signals applied to the multimode Josephson parametric converter. The multiple quantum signals having been amplified at the different resonance frequencies are reflected, according to the pump signals. | ||||||
| 43 | NEUROMIMETIC CIRCUIT | US15841701 | 2017-12-14 | US20180211158A1 | 2018-07-26 | Jeffrey Shainline; Sae Woo Nam; Sonia Buckley |
| A neuromimetic circuit includes: a primary single photon optoelectronic neuron; a synapse in optical communication with the primary single photon optoelectronic neuron; and an axonic waveguide in optical communication with the primary single photon optoelectronic neuron and the synapse such that the axonic waveguide optically interconnects the primary single photon optoelectronic neuron and the synapse. | ||||||
| 44 | WIRELESS JOSEPHSON BIFURCATION AMPLIFIER | US15914995 | 2018-03-07 | US20180198427A1 | 2018-07-12 | Anirudh Narla; Katrina Sliwa; Michael Hatridge; Shyam Shankar; Luigi Frunzio; Robert J. Schoelkopf, III; Michel Devoret |
| A wireless Josephson-junction-based amplifier is described that provides improved tunability and increased control over both a quality factor Q and participation ratio p of the amplifier. The device may be fabricated on a chip and mounted in a waveguide. No wire bonding between the amplifier and coaxial cables or a printed circuit board is needed. At least one antenna on the chip may be used to couple energy between the waveguide and wireless JBA. The amplifier is capable of gains greater than 25 dB. | ||||||
| 45 | QUANTUM LIMITED JOSEPHSON AMPLIFIER WITH SPATIAL SEPARATION BETWEEN SPECTRALLY DEGENERATE SIGNAL AND IDLER MODES | US15692384 | 2017-08-31 | US20180091143A1 | 2018-03-29 | BALEEGH ABDO |
| A technique relates to a quantum-limited microwave amplifier. A Josephson ring modulator (JRM) is connected to a first lumped-element resonator. The first lumped-element resonator includes one or more first lumped elements. A second lumped-element resonator is connected to the JRM, and the second lumped-element resonator includes one or more second lumped elements. The JRM, the first lumped-element resonator, and the second-lumped element resonator form a Josephson parametric converter (JPC). The one or more first lumped elements and the one or more second lumped elements have a value that is the same, thereby configuring the JPC to be spectrally degenerate. | ||||||
| 46 | DRIVING THE COMMON-MODE OF A JOSEPHSON PARAMETRIC CONVERTER USING A SHORT-CIRCUITED COPLANAR STRIPLINE | US15193743 | 2016-06-27 | US20170373369A1 | 2017-12-28 | Baleegh Abdo |
| Techniques relate to an on-chip Josephson parametric converter. A Josephson ring modulator includes four nodes. A lossless on-chip flux line is capacitively coupled to two adjacent nodes of the four nodes of the Josephson ring modulator. The lossless on-chip flux line has an input port configured to receive a pump drive signal that couples differentially to the two adjacent nodes of the of the Josephson ring modulator. The pump drive signal thereby excites a common mode of the on-chip Josephson parametric converter. | ||||||
| 47 | MULTIMODE JOSEPHSON PARAMETRIC CONVERTER: COUPLING JOSEPHSON RING MODULATOR TO METAMATERIAL | US14952117 | 2015-11-25 | US20170201222A1 | 2017-07-13 | Baleegh Abdo |
| A technique relates to a microwave device. The microwave device includes a Josephson ring modulator, a first multimode resonator connected to the Josephson ring modulator, where the first multimode resonator is made of a first left-handed transmission line, and a second multimode resonator connected to the Josephson ring modulator, where the second multimode resonator is made of a second left-handed transmission line. | ||||||
| 48 | MULTIMODE JOSEPHSON PARAMETRIC CONVERTER: COUPLING JOSEPHSON RING MODULATOR TO METAMATERIAL | US15443120 | 2017-02-27 | US20170170812A1 | 2017-06-15 | Baleegh Abdo |
| A technique relates to operating a multimode Josephson parametric converter as a multimode quantum limited amplifier. The multimode Josephson parametric converter receives multiple quantum signals in parallel at different resonance frequencies. The multimode Josephson parametric converter amplifies simultaneously the multiple quantum signals, according to pump signals applied to the multimode Josephson parametric converter. The multiple quantum signals having been amplified at the different resonance frequencies are reflected, according to the pump signals. | ||||||
| 49 | JOSEPHSON-COUPLED RESONATOR AMPLIFIER (JRA) | US14754315 | 2015-06-29 | US20170085231A1 | 2017-03-23 | Baleegh Abdo |
| A Josephson-coupled resonator amplifier is provided. The Josephson-coupled resonator amplifier includes a first and a second resonator, each formed from respective lumped-element capacitance and respective lumped-element inductance. The Josephson-coupled resonator amplifier further includes one or more Josephson junctions coupling the first resonator to the second resonator, whereby a superconducting loop is formed from at least the lumped-element inductance of the resonators and the one or more Josephson junctions. | ||||||
| 50 | DRIVING THE COMMON-MODE OF A JOSEPHSON PARAMETRIC CONVERTER USING A THREE-PORT POWER DIVIDER | US15341340 | 2016-11-02 | US20170077381A1 | 2017-03-16 | Baleegh Abdo |
| An on-chip Josephson parametric converter is provided. The on-chip Josephson parametric converter includes a Josephson ring modulator. The on-chip Josephson parametric converter further includes a lossless power divider, coupled to the Josephson ring modulator, having a single input port and two output ports for receiving a pump drive signal via the single input port, splitting the pump drive signal symmetrically into two signals that are equal in amplitude and phase, and outputting each of the two signals from a respective one of the two output ports. The pump drive signal excites a common mode of the on-chip Josephson parametric converter. | ||||||
| 51 | Driving the common-mode of a josephson parametric converter using a three-port power divider | US14754243 | 2015-06-29 | US09548742B1 | 2017-01-17 | Baleegh Abdo |
| An on-chip Josephson parametric converter is provided. The on-chip Josephson parametric converter includes a Josephson ring modulator. The on-chip Josephson parametric converter further includes a lossless power divider, coupled to the Josephson ring modulator, having a single input port and two output ports for receiving a pump drive signal via the single input port, splitting the pump drive signal symmetrically into two signals that are equal in amplitude and phase, and outputting each of the two signals from a respective one of the two output ports. The pump drive signal excites a common mode of the on-chip Josephson parametric converter. | ||||||
| 52 | Magnetic Logic Units Configured as an Amplifier | US13769156 | 2013-02-15 | US20130241636A1 | 2013-09-19 | Bertrand F. Cambou; Douglas J. Lee; Ken Mackay |
| An apparatus includes a circuit and a field line. The circuit includes a magnetic tunnel junction including a storage layer and a sense layer. The field line is configured to generate a magnetic field based on an input signal, where the magnetic tunnel junction is configured such that a magnetization direction of the sense layer and a resistance of the magnetic tunnel junction vary based on the magnetic field. The circuit is configured to amplify the input signal to generate an output signal that varies in response to the resistance of the magnetic tunnel junction. | ||||||
| 53 | Superconducting switching amplifier | US11705351 | 2007-02-12 | US20080048762A1 | 2008-02-28 | Amol Inamdar; Sergey Rylov |
| A superconducting switching amplifier embodying the invention includes superconductive devices responsive to input/control signals for clamping the output of the amplifier to a first voltage or to a second voltage. The amplifier includes a first set of superconducting devices serially connected between a first voltage line and an output terminal and a second set of superconducting devices serially connected between the output terminal and a second voltage line. The first set and the second set of devices are operated in a complementary fashion in response to control signals. When one of the first and second sets is driven to a superconducting (zero resistance) state the other set is driven to a resistive state. In accordance with the invention, the devices of each set are laid out in a pattern and driven in a manner to enable all the devices of each set to be driven to a selected state at substantially the same time. In one embodiment, the devices in each set are superconducting quantum interference devices (SQUIDs). Four sets of superconductive devices may be interconnected to function as a differential switching amplifier. The operating voltage applied to an amplifier may be varied to provide additional shaping of the output signal. | ||||||
| 54 | Superconductor signal amplifier | US09816240 | 2001-03-26 | US06486756B2 | 2002-11-26 | Yoshinobu Tarutani; Kazuo Saitoh; Kazumasa Takagi; Yoshihisa Soutome; Tokuumi Fukazawa; Akira Tsukamoto |
| A superconductor signal amplifier which receives an extremely small high-frequency signal having a frequency of tens of GHz generated in a superconductive circuit, amplifies the voltage of the high-frequency signal without a decrease in frequency, and outputs the thus amplified high-frequency signal from the superconductive circuit. At an output part of a single flux quantum circuit using a flux quantum as a binary information carrier, there are provided a superconductive junction line for flux quantum transmission and a splitter for simultaneously producing two flux quanta from a flux quantum. According to the number of plural series-connected SQUIDs, a plurality of flux quantum signals are generated and input to the plural series-connected SQUIDs so that the SQUIDs are simultaneously switched to a voltage state. In each SQUID pair comprising two SQUIDs, a part of an inductor is shared by the two SQUIDs for reduction in inductance, thereby increasing an output voltage of the series-connected SQUIDs. Furthermore, a magnetic shielding film formed under each SQUID is electrically isolated from ground to prevent a signal delay due to a parasitic capacitance. | ||||||
| 55 | Wideband dual amplifier circuits | US09740435 | 2000-12-19 | US06356147B1 | 2002-03-12 | Uttam S. Ghoshal |
| Dual amplifying circuits having a magnetic tunnel junction device and a field effect transistor configured in a complementing set are disclosed herein. In one embodiment, the field effect transistor is operable to control a current level of a current operating signal flowing through the magnetic tunnel junction device. In another embodiment, the magnetic tunnel junction device is operable to control a voltage level of a voltage signal being applied to a gate terminal of the field effect transistor. The gain-bandwidth product of both embodiments is greater than the individual gain-bandwidth products of the individual devices through the elimination of noise contributing resistive type circuit elements. | ||||||
| 56 | Superconducting active impedance converter | US850475 | 1992-03-12 | US5262395A | 1993-11-16 | David S. Ginley; Vincent M. Hietala; Jon S. Martens |
| A transimpedance amplifier for use with high temperature superconducting, other superconducting, and conventional semiconductor allows for appropriate signal amplification and impedance matching to processing electronics. The amplifier incorporates the superconducting flux flow transistor into a differential amplifier configuration which allows for operation over a wide temperature range, and is characterized by high gain, relatively low noise, and response times less than 200 picoseconds over at least a 10-80 K. temperature range. The invention is particularly useful when a signal derived from either far-IR focal plane detectors or from Josephson junctions is to be processed by higher signal/higher impedance electronics, such as conventional semiconductor technology. | ||||||
| 57 | High gain Josephson junction voltage amplifier | US323144 | 1981-11-19 | US4458160A | 1984-07-03 | Richard M. Josephs; Tsing-Chow Wang |
| A single Josephson junction device is arranged in a single branch which comprises an external source resistor connected in series with an output resistor and a Josephson junction device. An input node and an input resistor are in series and connected to the node between the output resistor and the Josephson junction device. Voltage signals applied to the input voltage node are amplified by connecting a high gain voltage output in parallel with the output resistor and providing sensing means for sensing the voltage output across the output resistor only when the Josephson junction device is switching from its low impedance state to its high impedance state. | ||||||
| 58 | Circuit arrangement for amplifying high frequency electromagnetic waves | US891145 | 1978-03-28 | US4132956A | 1979-01-02 | Peter Russer |
| A circuit for amplifying high frequency electromagnetic waves composed of a Josephson junction constituting an electromagnetic high frequency line along which electromagnetic waves can propagate at a signal frequency and at least one idler frequency, the junction being supplied with a direct voltage which modulates its associated Josephson current with respect to time, and with a magnetic field which modulates that current with respect to space. | ||||||
| 59 | High gain, large bandwidth amplifier based on the josephson effect | US44108974 | 1974-02-11 | US3913027A | 1975-10-14 | ZAPPE HANS HELMUT |
| A wide band linear amplifier comprising first and second heavily damped Josephson devices and associated superconducting circuitry. Each Josephson device has a parallel path with a load resistor connected thereto. The parallel path connected to the first Josephson device is positioned to operate as a control current path for the second Josephson device. Both Josephson devices are operated on linear portions of their respective gain curves. The output current through the second load resistance is a linear amplification of the input current; the latter being applied as control current to the first Josephson device.
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| 60 | Ferroelectric amplifier | US51594365 | 1965-12-23 | US3401348A | 1968-09-10 | STEPHEN YANDO |
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