| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | JPH026446B2 - | JP20224182 | 1982-11-19 | JPH026446B2 | 1990-02-09 | RICHAADO MITSUSHERU JOSEFU; TSUSHINGU CHO UONGU |
| 22 | Amplifier using dc superconduction quantum interference device | JP10493884 | 1984-05-22 | JPS60247311A | 1985-12-07 | NOGUCHI TAKU |
| PURPOSE:To improve greatly the amplification capacity of an AC signal with no reduction of an action frequency by inserting an impedance transformation circuit between an inpt coil of a DC superconduction quantum interference device (dc SQUID) and a signal source or between an output terminal of the dc SQUID and a load resistance. CONSTITUTION:A transformation circuit 7 is used for matching of impedance between a signal source 1 and an input coil 3; while an impedance transformation circuit 8 is added for matching between the output resistance of a dc SQUID4 and a load 5. The power reflection of the circuit 7 can be eliminated by securing a proper constitution of the circuit 7, and it is possible to transmit all available powers to an amplifier circuit 30. The impedance matching is secured between the source 1 and the SQUID4 to improve the power gain. In addition, the impedance matching is secured also between an output load and the dc SQUID4 at the output side. Thus the maximum available power is obtained. | ||||||
| 23 | High gain josephson junction voltage amplifier | JP20224182 | 1982-11-19 | JPS5892115A | 1983-06-01 | RICHIYAADO MITSUSHIERU JIYOSEF; TSUSHINGU CHIYOU UONGU |
| 24 | 조셉슨 접합-기반 서큘레이터 및 관련 시스템 및 방법 | KR1020177027135 | 2016-02-26 | KR1020170127476A | 2017-11-21 | 슬리와카트리나; 해트리지마이클; 날라아니루드; 샨카르쉬암; 프룬지오루이지; 숄코프로버트제이.3세; 데보렛미쉘 |
| 일부양태에따르면, 회로가제공되고, 상기회로는, 루프내에직렬로배열된복수의조셉슨접합, 상기루프를통해자속을생성하는적어도하나의자성요소, 복수의초전도공진기로서, 각공진기는상기복수의조셉슨접합의상이한인접한쌍의조셉슨접합들사이에상기루프에결합된, 상기복수의초전도공진기, 복수의포트로서, 각포트는상기공진기들이상기루프에결합된단부들과반대쪽상기공진기들의단부들에서상기복수의공진기중 적어도하나의공진기에결합된, 상기복수의포트, 및상기회로가상기복수의포트사이에서서큘레이터로서기능하게하는입력에너지를상기복수의포트각각에제공하도록구성된적어도하나의제어기를포함한다. | ||||||
| 25 | 증폭 회로 | KR1020037007901 | 2001-12-19 | KR1020030060991A | 2003-07-16 | 고샬우탐 |
| 보완 장치 내에 구성된 자기 터널 접합 디바이스와 전계 효과 트랜지스터를 갖는 듀얼 증폭 회로가 본 발명에서 개시된다. 일 실시예에서, 전계 효과 트랜지스터는 자기 터널 접합 디바이스를 통해 흐르는 전류 동작 신호의 전류 레벨을 제어하도록 동작될 수 있다. 다른 실시예에서, 자기 터널 접합 디바이스가 전계 효과 트랜지스터의 게이트 단자에 인가되는 전압 신호의 전압 레벨을 제어하도록 동작될 수 있다. 두 실시예의 이득 대역폭 곱은 잡음을 높이는 저항성 타입 회로 요소를 제거함으로써 개별 디바이스의 개별 이득 대역폭 곱보다 크다. | ||||||
| 26 | 증폭 회로 | KR1020037007901 | 2001-12-19 | KR100509190B1 | 2005-08-17 | 고샬우탐 |
| 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. | ||||||
| 27 | 죠셉슨 접합에서의 전위차 증폭 방법 | KR1019960064129 | 1996-12-11 | KR100240654B1 | 2000-01-15 | 박선희; 김승환; 류창수 |
| 본 발명은 외부 전류가 있는 죠셉슨 결합에서 측정하고자 하는 전위차를 증폭하는 방법에 관한 것으로, 특히 외부 전류가 있는 간단한 죠셉슨 접합에서 외부 전류에 외부 유색 잡음을 삽입하여 전위차를 증폭하는 죠셉슨 접합에서의 전위차 증폭 방법에 관해 개시된다. | ||||||
| 28 | MAGNETIC LOGIC UNITS CONFIGURED AS AN AMPLIFIER | EP13749177 | 2013-02-15 | EP2815401A4 | 2015-04-08 | CAMBOU BERTRAND F; LEE DOUGLAS J; MACKAY KEN |
| 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. | ||||||
| 29 | METHOD AND APPARATUS FOR JOSEPHSON DISTRIBUTED OUTPUT AMPLIFIER | EP09790943.6 | 2009-07-29 | EP2313972B1 | 2013-09-04 | HERR, Quentin, P.; MILLER, Donald, L.; PRZYBYSZ, John, X. |
| 30 | METHOD AND APPARATUS FOR JOSEPHSON DISTRIBUTED OUTPUT AMPLIFIER | EP09790943.6 | 2009-07-29 | EP2313972A1 | 2011-04-27 | HERR, Quentin, P.; MILLER, Donald, L.; PRZYBYSZ, John, X. |
| The disclosure generally relates to a method and apparatus for providing high-speed, low signal power amplification. In an exemplary embodiment, the disclosure relates to a method for providing a wideband amplification of a signal by forming a first transmission line in parallel with a second transmission line, each of the first transmission line and the second transmission line having a plurality of superconducting transmission elements, each transmission line having a transmission line delay; interposing a plurality of amplification stages between the first transmission line and the second transmission line, each amplification stage having an resonant circuit with a resonant circuit delay; and substantially matching the resonant circuit delay for at least one of the plurality of amplification stages with the transmission line delay of at least one of the superconducting transmission lines. | ||||||
| 31 | WIDEBAND DUAL AMPLIFIER CIRCUITS | EP01271101.6 | 2001-12-19 | EP1344314B1 | 2005-10-26 | GHOSHAL, Uttam |
| 32 | WIDEBAND DUAL AMPLIFIER CIRCUITS | EP01271101.6 | 2001-12-19 | EP1344314A2 | 2003-09-17 | GHOSHAL, Uttam |
| Dual amplifying circuits having a magnetic tunnel junction device (MTS) and a field effect transistor (FET) configured in a complementing set are disclosed herein. In one embodiment, the field effect transistor (FET) is operable to control a current level of a current operating signal flowing through the magnetic tunnel junction device (MTS). In another embodiment, the magnetic tunnel junction device (MTS) is operable to control a voltage level of a voltage signal being applied to a gate terminal of the field effect transistor (FET). 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. | ||||||
| 33 | Superconducting input interface circuit for superconducting circuit | EP93401108.1 | 1993-04-28 | EP0568455B1 | 1998-06-24 | Tokuda, Hitoki; Iiyama, Michitomo |
| 34 | Josephson junction device | EP82306174.2 | 1982-11-19 | EP0081922B1 | 1985-09-11 | Josephs, Richard Michael, Dr.; Wang, Tsing-Chow, Dr. |
| 35 | Josephson junction device | EP82306174.2 | 1982-11-19 | EP0081922A1 | 1983-06-22 | Josephs, Richard Michael, Dr.; Wang, Tsing-Chow, Dr. |
The invention provides a Josephson junction device having substantial voltage amplification. The junction (J3) is connected between a current summing node (31) and ground. An input terminal (23) is connected to the node (31) through an input resistor Rin2(25) and the node is also connected to a constant current source through an output resistor Rout(29). A single-shot multivibrator (12) senses the switching of the Josephson junction, and thereupon closes a normally-open switch (14) connected across the output resistor (29), causing the voltage across this resistor to appear across output leads (37). It is shown that the voltage amplification at the instant of switching of the Josephson junction is equal to Rout divided by Rin, and this may be quite high, for example as high as 400. The resistors (25 and 29) are enclosed within the cryogenic enclosure indicated by the dashed outline (38), and therefore the amplification at the output resistor is virtually noise-free. In a modification, the normally-open switch (14) may be replaced by a voltage comparator device. |
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| 36 | MAGNETIC LOGIC UNITS CONFIGURED AS AN AMPLIFIER | EP13749177.5 | 2013-02-15 | EP2815401B1 | 2018-04-04 | CAMBOU, Bertrand F.; LEE, Douglas J.; MACKAY, Ken |
| 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. | ||||||
| 37 | WIRELESS JOSEPHSON PARAMETRIC CONVERTER | EP16780864.1 | 2016-04-15 | EP3284115A1 | 2018-02-21 | SLIWA, Katrina; HATRIDGE, Michael; NARLA, Anirudh; SHANKAR, Shyam; FRUNZIO, Luigi; SCHOELKOPF III, Robert, J.; DEVORET, Michel |
| 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. | ||||||
| 38 | Superconducting input interface circuit for superconducting circuit | EP97111509.2 | 1993-04-28 | EP0803983A2 | 1997-10-29 | Tokuda, Hitoki; Iiyama, Michitomo |
A superconducting interface circuit converting a signal sent from a normal conducting circuit into a small voltage swing signal suitable for the superconducting circuit, comprising two superconducting field effect devices, characterized in that the superconducting gate electrode of the first superconducting field effect device is connected to a signal line which transmits a voltage signal from the normal conducting circuit, and the superconducting drain of this first superconducting field effect device is connected to a ground line, the superconducting source of the first superconducting field effect device is connected to the superconducting drain and the gate electrode of the second superconducting field effect device; and the superconducting source of the second superconducting field effect device is connected to a power line; and in that the superconducting interface circuit is connected to the superconducting circuit through a magnetic coupling. |
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| 39 | Superconducting input interface circuit for superconducting circuit | EP93401108.1 | 1993-04-28 | EP0568455A1 | 1993-11-03 | Tokuda, Hitoki; Iiyama, Michitomo |
A superconducting interface circuit converting a signal sent from a normal conducting circuit into a small voltage swing signal suitable for a superconducting circuit includes a superconducting field effect device. The superconducting field effect device has a superconducting channel of an extremely thin oxide superconductor thin film, a superconducting source region and a superconducting drain region of an oxide superconductor thin film positioned at the both ends of the superconducting channel, and a gate electrode on the superconducting channel through a gate insulator. The gate electrode of the super-FET is connected to a signal line which transmits a voltage signal from the normal conducting circuit. |
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| 40 | AMPLIFICATION OF FREQUENCY MULTIPLEXED MICROWAVE SIGNALS USING CASCADING MULTI-PATH INTERFEROMETRIC JOSEPHSON DIRECTIONAL AMPLIFIERS WITH NONOVERLAPPING BANDWIDTHS | US15829099 | 2017-12-01 | US20190173445A1 | 2019-06-06 | BALEEGH ABDO |
| A cascading microwave directional amplifier (cascade) includes a set of Josephson devices, each Josephson device in the set having a corresponding operating bandwidth of microwave frequencies, wherein different operating bandwidths have different corresponding center frequencies. A series coupling is formed between first Josephson device from the set and an nth Josephson device from the set, such that the first Josephson device amplifies a signal of a first frequency from a frequency multiplexed microwave signal (multiplexed signal) and propagate without amplification a signal of an nth frequency, and the nth Josephson device to amplify the signal of the nth frequency and propagate without amplification the signal of the first frequency from the multiplexed signal in the first signal flow direction through the series. | ||||||
