Low-Pass Filter
    42.
    发明申请

    公开(公告)号:US20210067142A1

    公开(公告)日:2021-03-04

    申请号:US17007745

    申请日:2020-08-31

    IPC分类号: H03H11/04 H01F27/06 H05K9/00

    摘要: A low pass filter is disclosed. In an embodiment a low-pass filter includes a current-compensated choke, a reference potential and a capacitor connected in parallel with the current-compensated choke and to the reference potential, wherein a core of the current-compensated choke is configured to have a magnetic circuit, and wherein the core has an air gap.

    Magnetoinductive waveguide
    44.
    发明授权

    公开(公告)号:US10931252B2

    公开(公告)日:2021-02-23

    申请号:US16085636

    申请日:2017-03-17

    摘要: A re-configurable magnetoinductive waveguide (300), comprising a plurality of resonator cells, wherein each resonator cell comprises a primary resonator (110) that is inductively coupled to a primary resonator (110) of at least one other resonator cell, and wherein at least one of the plurality of resonator cells is a controllable cell (100) which further comprises a control element (120), the control element (120) having an active control component (125) that is operable to adjust the impedance of the primary resonator (110) of the controllable cell (100) in response to a control signal; wherein: the control element (120) comprises a secondary resonator, the secondary resonator is inductively coupled to the primary resonator (110), and the active control component (125) is arranged to vary the electrical properties of the secondary resonator in response to the control signal.

    Quantum computer hardware with reflectionless filters for thermalizing radio frequency signals

    公开(公告)号:US10891557B2

    公开(公告)日:2021-01-12

    申请号:US16788439

    申请日:2020-02-12

    摘要: A quantum computer hardware apparatus may include a first stage, which is connected to one or more signal generators, and a second stage adapted to be cooled down at a lower temperature than the first stage. Superconducting qubits are arranged in the second stage. The signal generators are configured, each, to generate radio frequency (RF) signals to drive the qubits, in operation. The apparatus may further include an intermediate stage between the first stage and the second stage, wherein the intermediate stage comprises one or more coolable filters, the latter configured for thermalizing RF signals from the signal generators. Related methods for thermalizing radio frequency signals in a quantum computer hardware apparatus are also disclosed.

    LED lamp having aperture located in the light emitting surface

    公开(公告)号:US10859251B2

    公开(公告)日:2020-12-08

    申请号:US16815013

    申请日:2020-03-11

    摘要: An LED lamp includes: a lamp shell including a lamp head, a lamp neck and a sleeve; a passive heat dissipating element having a heat sink connected to the lamp shell; a power source having a first portion and a second portion; a light emitting surface connected to the heat sink of the passive heat dissipating element and comprising LED chips electrically connected to the power source; a first heat dissipating channel formed in a first chamber of the lamp shell for dissipating heat generated from the power source while the LED lamp is working, and the first chamber is located between bottom of the LED lamp and an upper portion of the lamp neck; and a second heat dissipating channel formed in the heat sink and between the fins and the base of the heat sink for dissipating the heat generated from the LED chips and transferred to the heat sink; wherein a lateral outline of the LED lamp detours around the axis of the LED lamp 360 degrees to turn around to form a contour of the LED lamp, the outline includes an outline of the lamp neck and an outline of the heat sink, the outline of the lamp neck has a slope a which is a constant, the outline of the heat sink has a slope b which is a constant, and the value of the slope a is greater than that of the slope b.

    LED lamp emitting high luminous flux

    公开(公告)号:US10859250B2

    公开(公告)日:2020-12-08

    申请号:US16794258

    申请日:2020-02-19

    摘要: An LED lamp includes: a lamp shell including a lamp head, a lamp neck and a sleeve; a passive heat dissipating element having a heat sink connected to the lamp shell; a power source having a first portion and a second portion; a light emitting surface connected to the heat sink of the passive heat dissipating element and comprising LED chips electrically connected to the power source; a first heat dissipating channel formed in a first chamber of the lamp shell for dissipating heat generated from the power source while the LED lamp is working, and the first chamber is located between bottom of the LED lamp and an upper portion of the lamp neck; and a second heat dissipating channel formed in the heat sink and between the fins and the base of the heat sink for dissipating the heat generated from the LED chips and transferred to the heat sink; wherein a lateral outline of the LED lamp detours around an axis of the LED lamp 360 degrees to turn around to form an contour of the LED lamp, any point on the outline meets a formula as follows: y=−ax3+bx2−cx+K; where K is a constant, and range of the constant of K is 360˜450; range of value of a is 0.001˜0.01, range of value of b is 0.05˜0.3, and range of value of c is 5˜20.

    Filter
    49.
    发明授权
    Filter 有权

    公开(公告)号:US10855253B2

    公开(公告)日:2020-12-01

    申请号:US16326471

    申请日:2017-08-17

    申请人: NOVELDA AS

    IPC分类号: H03H11/04

    摘要: A circuit comprising: a passive reactive component; and an active circuit, the active circuit arranged to increase the ac voltage difference across the reactive component by changing the current at an input to the reactive component and the current at an output of the reactive component by equal and opposite amounts. By increasing the current on one side of the resonant circuit and decreasing the current on the other side of the resonant circuit, the amount of current flowing through the resonant circuit is increased and thus the ac voltage difference across the inductor of the LC resonant circuit is increased. The Q of an inductor (the ratio of its imaginary to real impedance) is increased. In a filter, the improved Q provides a sharp, high rejection notch and faster pass-band to stop-band roll-off, thus improving the frequency response of the circuit.

    Tunable microwave resonator for qubit circuits

    公开(公告)号:US10833680B2

    公开(公告)日:2020-11-10

    申请号:US16570702

    申请日:2019-09-13

    摘要: In an embodiment, a quantum circuit (circuit) includes a first qubit and a second qubit. In an embodiment, a quantum circuit includes a tunable microwave resonator, wherein a first applied magnetic flux is configured to tune the microwave resonator to a first frequency, the first frequency configured to activate an interaction between the first qubit and the second qubit, and wherein a second applied magnetic flux is configured to tune the microwave resonator to a second frequency, the second frequency configured to minimize an interaction between the first qubit and the second qubit.