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公开(公告)号：US11791810B2
公开(公告)日：2023-10-17
申请号：US17634590
申请日：2020-08-13
摘要： A transposed delay line oscillator including a mode selection filter and a transposed delay line is provided. An output of the transposed delay line is coupled to an input of the mode selection filter to establish an oscillator loop. Based on the transposed delay line output, the mode selection filter generates a mode selection signal including an isolated oscillatory mode, in a Radio Frequency (RF) band. The transposed delay line receives the mode selection signal for transposition to an intermediate frequency of an intermediate frequency (IF) delay line. The IF delay line includes a delay filter and a phase noise suppression loop configured to suppress de-correlated transposition phase noise resulting from a delay of the delay filter. Suppression of phase noise in the IF delay line enables cancellation of transposition phase noise when transposing the IF delay line output to the RF band.
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公开(公告)号：US20230231545A9
公开(公告)日：2023-07-20
申请号：US17634590
申请日：2020-08-13
IPC分类号： H03K5/1252 , H03K5/14 , H03D7/00
CPC分类号： H03K5/1252 , H03K5/14 , H03D7/00
摘要： A transposed delay line oscillator including a mode selection filter and a transposed delay line is provided. An output of the transposed delay line is coupled to an input of the mode selection filter to establish an oscillator loop. Based on the transposed delay line output, the mode selection filter generates a mode selection signal including an isolated oscillatory mode, in a Radio Frequency (RF) band. The transposed delay line receives the mode selection signal for transposition to an intermediate frequency of an intermediate frequency (IF) delay line. The IF delay line includes a delay filter and a phase noise suppression loop configured to suppress de-correlated transposition phase noise resulting from a delay of the delay filter. Suppression of phase noise in the IF delay line enables cancellation of transposition phase noise when transposing the IF delay line output to the RF band.
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公开(公告)号：US11443222B2
公开(公告)日：2022-09-13
申请号：US16666553
申请日：2019-10-29
摘要： A signal generating system is provided. The signal generating system provides a microwave signal to a plurality of qubits. The signal generating system includes a generator, an oscillator, a mixer, and a splitter. The oscillator generates an oscillator signal including a constant frequency. The generator generates a generator signal including an initial frequency. The mixer is electrically coupled to the generator and the oscillator. The mixer combines the generator and oscillator signals to produce the microwave signal. The splitter is electrically coupled to the mixer. The splitter fans-out the microwave signal to a plurality of physical lines. Each of the plurality of physical lines is electrically connected to a corresponding one of the plurality of qubits.
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公开(公告)号：US20210152127A1
公开(公告)日：2021-05-20
申请号：US17161844
申请日：2021-01-29
发明人： Baleegh Abdo
摘要： A superconducting device that mixes surface acoustic waves and techniques for fabricating the same are provided. A superconducting device can comprise a first surface acoustic wave resonator comprising a first low-loss piezo-electric dielectric substrate. The superconducting device can also comprise a second surface acoustic wave resonator comprising a second low-loss piezo-electric dielectric substrate. Further, the superconducting device can comprise a Josephson ring modulator coupled to the first surface acoustic wave resonator and the second surface acoustic wave resonator. The Josephson ring modulator is a dispersive nonlinear three-wave mixing element.
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公开(公告)号：US10985701B1
公开(公告)日：2021-04-20
申请号：US16819234
申请日：2020-03-16
发明人： Baleegh Abdo
IPC分类号： H03D7/00
摘要： A technique relates to a pulse shaping of microwave signals. A nondegenerate mixing device receives signals and a time-varying magnetic flux via input ports. The nondegenerate mixing device uses the signals and the time-varying magnetic flux to generate an output signal on an output port, the output signal having a waveform profile set by the time-varying magnetic flux.
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公开(公告)号：US10715083B2
公开(公告)日：2020-07-14
申请号：US16385667
申请日：2019-04-16
发明人： Baleegh Abdo
摘要： Superconducting device applications implemented with two surface acoustic wave resonators coupled to a Josephson ring modulator are provided. A method can include receiving, by a unitary Josephson mixer and from a first superconducting surface acoustic wave resonator of a superconducting device, a first surface acoustic wave signal that comprises one or more phonons that resonate at a first frequency, and receiving, by the unitary Josephson mixer and from a radio frequency source operatively coupled to the unitary Josephson mixer, a radio frequency control signal. The method can also include mixing the first surface acoustic wave signal and the radio frequency control signal and outputting a second surface acoustic wave signal based on mixing the first surface acoustic wave signal and the radio frequency control signal. The second surface acoustic wave signal can comprise one or more phonons that resonate at a second frequency.
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公开(公告)号：US10693566B2
公开(公告)日：2020-06-23
申请号：US15567198
申请日：2016-04-15
申请人： Yale University
发明人： Katrina Sliwa , Michael Hatridge , Anirudh Narla , Shyam Shankar , Luigi Frunzio , Robert J. Schoelkopf, III , Michel Devoret
IPC分类号： H04B10/90 , G06N99/00 , H04B10/70 , H01L27/18 , H03D7/00 , H01L39/02 , H01L39/04 , H01L39/22 , H01P3/12 , H03F19/00 , H03D9/06 , H01P5/08 , G06N10/00 , H01P5/02 , H01P5/103
摘要： A wireless Josephson-junction-based parametric converter is described. The converter may be formed on a substrate with antennas that pump are configured to wirelessly receive pump, signal and idler frequencies and couple the received frequencies to the converter's circuitry. Capacitors may also be fabricated on the same substrate and sized to tune operation of the converter to desired frequencies. The converter may be coupled directly to microwave waveguides, and may be tuned to different signal frequencies by applying magnetic flux to the converter circuitry.
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公开(公告)号：US20200162076A1
公开(公告)日：2020-05-21
申请号：US16193649
申请日：2018-11-16
摘要： Techniques for mixing, or modulating, a high-frequency, digital communication signal with a low-frequency, analog current loop signal are provided. In certain examples, the techniques allow mixing the signals in a non-AC coupled manner. In certain examples, such mixing techniques can allow for simplified connections between a modem chip and an analog current loop interface chip of an analog I/O module.
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公开(公告)号：US20200036330A1
公开(公告)日：2020-01-30
申请号：US16048935
申请日：2018-07-30
发明人： Baleegh Abdo
摘要： A superconducting device that mixes surface acoustic waves and techniques for fabricating the same are provided. A superconducting device can comprise a first surface acoustic wave resonator comprising a first low-loss piezo-electric dielectric substrate. The superconducting device can also comprise a second surface acoustic wave resonator comprising a second low-loss piezo-electric dielectric substrate. Further, the superconducting device can comprise a Josephson ring modulator coupled to the first surface acoustic wave resonator and the second surface acoustic wave resonator. The Josephson ring modulator is a dispersive nonlinear three-wave mixing element.
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公开(公告)号：US10528885B2
公开(公告)日：2020-01-07
申请号：US15720927
申请日：2017-09-29
摘要： A signal generating system is provided. The signal generating system provides a microwave signal to a plurality of qubits. The signal generating system includes a generator, an oscillator, a mixer, and a splitter. The oscillator generates an oscillator signal including a constant frequency. The generator generates a generator signal including an initial frequency. The mixer is electrically coupled to the generator and the oscillator. The mixer combines the generator and oscillator signals to produce the microwave signal. The splitter is electrically coupled to the mixer. The splitter fans-out the microwave signal to a plurality of physical lines. Each of the plurality of physical lines is electrically connected to a corresponding one of the plurality of qubits.
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