10results about "Multiple-port active networks" patented technology

An Ising machine system comprises a plurality of capacitors, a plurality of resistors having first and second terminals, wherein each capacitor is electrically connected to the first or second terminal of at least one resistor of the plurality of resistors via each of its positive and negative terminals, a power supply having positive and negative rails, a switching network configured to initialize each of the plurality of capacitors with a positive or negative voltage from the power supply, then disconnect all of the plurality of capacitors from the power supply, allowing the capacitor voltages to float, and at least one voltage measuring device configured to measure a voltage across the positive and negative terminals of a capacitor of the plurality of capacitors. A method of running an Ising machine system is also disclosed.

Embodiments of redrivers and resistive units for redrivers are disclosed. In an embodiment, a resistive unit for a redriver includes at least one resistor connected to an input / output terminal of the redriver, at least one switch serially connected to the at least one resistor, and a voltage regulator connected to the at least one switch and configured to generate a termination voltage for the at least one switch. Instead of grounding the at least one resistor, using the voltage regulator can avoid large voltage jump at input / output terminals to keep connected devices safe.

An electronic device according to an embodiment of the present disclosure may comprise: a processor; a memory electrically connected to the processor; a power management integrated circuit (PMIC) electrically connected to the processor; a radio frequency integrated circuit (RFIC) electrically connected to the processor; a power supply module including a power supply electrically connected to the PMIC and the processor; a front-end module including circuitry\electrically connected to the PMIC, the RFIC, and the power supply module, and is configured to modulate and amplify an RF signal received from the RFIC; a variable notch filter electrically connected to the power supply module and the front-end module, and connected to a transmission signal amplifier of the front-end module and configured to remove a harmonic frequency; and an antenna electrically connected to the front-end module, wherein the processor is configured to: control the PMIC and the power supply module to supply power to the front-end module; control a wireless communication operation to be performed using multiple frequency bands; and based on performing the wireless communication operation using the multiple frequency bands, control impedance of the variable notch filter to adjust a frequency removal band of the variable notch filter based on a parameter pre-stored in the memory.

Disclosed is an electromagnetic-circuit co-design approach for massively reconfigurable, multifunctional, and high-speed programmable metasurfaces with integrated chip tiling. The ability to manipulate the incident electromagnetic fields in a dynamically programmable manner and at high speeds using integrated chip tiling approach is also disclosed. The scalable architecture uses electromagnetic-circuit co-design of metasurfaces where each individual subwavelength meta-element is uniquely addressable and programmable. The disclosed device comprises a large array of such meta-elements. The design relies on integrated high frequency switches designed in conjugation with meta-element for massive reconfigurability of incident amplitude and phase. The disclosed chip is multi-functional and can perform beamforming, high speed spatial light modulation, dynamic holographic projections, and wavefront manipulation.

An excitation source circuit comprises a sinusoidal signal generation circuit, a D-type power amplification circuit, an LC filter and a push-pull switching power supply circuit. The sinusoidal signal generation circuit is used for outputting a sinusoidal signal; the D-type power amplification circuit is electrically connected with the sinusoidal signal generation circuit, and the D-type power amplification circuit realizes the amplification of a sinusoidal signal by controlling the on and off of a power switching device; the LC filter is electrically connected with the D-type power amplification circuit, and the LC filter processes the amplified sinusoidal signal and then outputs a driving signal; the push-pull switching power supply circuit is used for supplying power to the D-type power amplification circuit. According to the utility model, the noise of the excitation source circuit is reduced, and the measurement precision of the inductive displacement sensor is further improved.

A non-linear superconducting quantum circuit comprising at least one resonant portion and an asymmetrical threaded superconducting quantum interference device connected to said at least one resonant portion galvanically, said non-linear superconducting circuit having a first mode with a first resonant frequency and a second mode with a second resonant frequency, the ratio between said first resonant frequency and said second resonant frequency being different from ½, said at least one resonant portion being configured with inductance and capacitance values of its symbolic representation which induce with said asymmetrical threaded superconducting quantum interference device said first mode and said second mode such that, said non-linear superconducting quantum circuit has zero-point fluctuations of the superconducting phase across the asymmetrical threaded superconducting quantum interference device for the first mode and the second mode which are superior or equal to 0.05 rad.

A tunable filter (40; 50; 60; 70; 80; 80'; 90; 130) with tunable suppression, comprising: a first inductor (L1); a second inductor (L2) mutually coupled to the first inductor (L1), wherein the first inductor (L1) is connected in series with the second inductor (L2); and a tunable capacitor circuit (42; 52; 62; 72; 74; 92) which is electrically connected in parallel to the first inductor (L1) which has a switch (S11, S12, ..., S1N; S21, S22, ..., S2N; S31, S32, ..., S3N; S41, S42, ..., S4N; S51, S52, ..., S5N) and which is designed to match at least two notches in the frequency response of the tunable filter by changing a switching state of the switch (S11, S12, ..., S1N; S21, S22, ..., S2N; S31, S32, ..., S3N; S41, S42, ..., S4N; S51, S52, ..., S5N), wherein the tunable filter is designed to filter a high-frequency signal.

Various embodiments are described for controlling the resonant frequency of a resonator. The system includes at least one resonant circuit and an active variable reactance circuit that controls the resonant frequency of the at least one resonant circuit. The active variable reactance circuit includes an electrically controllable switching element and a switch controller subcircuit configured to switch the electrically controllable switching element at a frequency of a radio frequency (RF) current or voltage passing through or across the device such that the RF current flowing from a first terminal to a second terminal is substantially sinusoidal.

Methods and devices to address body leakage current generation and bias voltage distribution associated with body leakage current in an OFF state of a FET switch stack are disclosed. The devices include charge redistribution arrangements and bridge networks to perform coupling / decoupling to / from the FET switch stack. Detailed structures of such bridge networks are also described.

This utility model discloses a 1-40GHz downconverter component, comprising a 1-6GHz input channel, a 6-18GHz input channel, and a 33-40GHz input channel; a 3-18GHz output channel and a 1.75-1.85GHz output channel; the 1-6GHz input channel is composed of a 1-6GHz filter, a first limiter, a first amplifier, and a first power divider connected in series; the 33-40GHz input channel is composed of a 33-40GHz filter, a second limiter, a fourth amplifier, and a second power divider connected in series; the 6-18GHz input channel is composed of a 6-18GHz filter, a third limiter, a seventh amplifier, and a third power divider connected in series. This utility model has the advantages of wide bandwidth, high adaptability, high precision, and strong anti-interference, and also has dual-band coverage capability of 1-18GHz and 33-40GHz, which can seamlessly adapt to complex signals in multiple fields such as communication and radar, greatly improving the overall performance of electronic systems.