865results about "Resonators" patented technology

The invention provides an active regulation and control device for a microwave resonant cavity based on Rydberg atoms. The microwave resonant cavity comprises a protective shell, an atomic gas chamber and a photoelectric detector, the active regulation and control device comprises a PID control module and piezoelectric ceramics, the PID control module is used for processing a received EIT transmission spectrum signal after generating a modulation signal to carry out atomic resonant frequency scanning on the atomic gas chamber, obtaining a target resonant frequency through a current feedback zero crossing point corresponding to an EIT transmission spectrum valley bottom value, and generating a deviation correction signal; and the piezoelectric ceramic is used for adjusting the length of a protective shell of the microwave resonant cavity according to the received correction signal, so that the atomic resonant frequency is locked as the target resonant frequency. The invention further provides an active regulation and control method for the microwave resonant cavity based on the Rydberg atoms. According to the invention, the resonant frequency of the microwave resonant cavity can be rectified in real time, and the optimal and most stable resonant mode of the local oscillation microwave frequency responding to atoms is kept.

Systems, methods, and apparatus for multiplexed control and readout of quantum computing systems that can include qubits, couplers, and other related quantum computing circuit devices. Numerous examples of superconducting quantum computing systems are described that include some, or all, of these quantum computing circuit devices integrated into a superconducting quantum circuit that can be interfaced by a classical control system. In one example, a superconducting circuit is described. The superconducting circuit includes: a superconducting device including a superconducting loop interrupted by one or more Josephson junctions; a first microwave resonator inductively coupled to the superconducting loop of the superconducting device; a second microwave resonator capacitively coupled to the superconducting device, where the first and second microwave resonators each have a different fundamental frequency; and a microwave transmission line evanescently coupled to each of the first and second microwave resonators.

To provide a component for millimeter wave communication.SOLUTION: Disclosed herein are a component for millimeter wave communication and a related method and system.SELECTED DRAWING: Figure 5A

The invention discloses a medium cavity filtering coupler with an adjustable center frequency, particularly relates to the technical field of wireless communication, and solves the problems that in the prior art, the fusion design between a coupler and a filter of the same type is mainly adopted, most designs are low-power planar circuits, and the cost is low. The technical problem of lack of fusion design of an adjustable cavity filter and a coupler is solved. According to the technical scheme, a metal stepped shaft assembly is inserted into a non-metallized through hole of a medium cavity in a segmented mode, disturbance of different magnitudes is generated on a TE110 mode electric field in the medium cavity, and then the resonant frequency of the medium cavity is shifted; the effect of flexibly regulating and controlling the center frequency of the filtering coupler can be achieved.

A semiconductor device has an amplifier and common mode suppression (CMS) circuit formed on a common substrate. The CMS circuit has a first input and second input coupled for receiving an input signal and further has a first output coupled to a first input of the amplifier and a second output coupled to a second input of the amplifier to reduce common mode. The CMS circuit further has a ground plane, a first conductive trace disposed over the ground plane and coupled between the first input and first output, second conductive trace disposed over the ground plane and coupled between the second input and second output, and third conductive trace disposed over the ground plane with a first end of the third conductive trace coupled to the ground plane and a second end of the third conductive trace open circuit to form a resonator.

The invention discloses a dual-passband filtering coupler based on a dielectric resonant cavity, particularly relates to the technical field of wireless communication, and solves the technical problems that in the prior art, a cavity filter and a cavity coupler often work in a cascade mode, and a matching network needs to be additionally configured between the cavity filter and the cavity coupler, so that the hardware cost is high, and the occupied system space is large. According to the technical scheme, the coupler and the dual-passband filter are integrated in one device, the circuit size can be remarkably reduced, and cascade loss between the coupler and the dual-passband filter is eliminated. The high-performance index of the microwave circuit is guaranteed, effective balance between performance and cost is achieved, and the microwave circuit completely conforms to the development direction of miniaturization, high performance and low cost of a future communication system.

The invention belongs to the technical field of electronic information, and discloses a millimeter wave magnetic coupling variable resonant equalizer, which comprises a transmission waveguide channel, a coupling channel and a resonant cavity which are communicated, the resonant cavity and the coupling channel are arranged in the narrow side direction of the transmission waveguide channel, the opening direction of the coupling channel is parallel to the direction component of an electric field, and the opening direction of the coupling channel is parallel to the direction component of the electric field. The inner walls of the two ends of the resonant cavity are adjustably and slidably connected with adjusting blocks, the opposite inner side faces of the two adjusting blocks are fixedly connected with wave absorbing materials, and the inner wall, facing the coupling channel, of the resonant cavity is detachably and movably connected with a guide block. The center position of the resonant cavity is provided with a telescopic tuning pin perpendicular to the direction component of the magnetic field. According to the structure, the processing and installation problems of a common waveguide equalizer are effectively solved, the equalizer is debugged more simply and quickly, meanwhile, the standing-wave ratio is optimized by changing the cavity structure, and a relatively complex gain curve can be equalized through the good frequency response characteristic.

A superconducting qubit-based device includes: a superconducting qubit comprising a first conductive pad and a second conductive pad, each being formed of a superconducting material, and a ferromagnetic body configured to form a Josephson junction with the first conductive pad and the second conductive pad; a conducting wire spaced apart from the ferromagnetic body by a predetermined distance; and a control circuit configured to control a resonance frequency of the superconducting qubit by controlling a current flowing through the conducting wire.

A radio frequency adjusting structure comprises an adjusting screw, a cover plate, a base and a limiting piece. The adjusting screw comprises a cap part and a polished rod part located at the position of the middle axis of the cap part, the polished rod part defines the vertical direction, and the cap part is provided with a first internal thread spirally surrounding the cap part in the vertical direction. The cover plate comprises a horizontally-extending base plate part and a vertically-extending cylinder part, the cover plate is provided with a through hole, the through hole penetrates through the cylinder part and the base plate part from top to bottom in the vertical direction, and the polished rod part penetrates through the through hole. The cylinder part is provided with a first external thread which spirally surrounds in the vertical direction, and the first internal thread is spirally matched with the first external thread. The base is located below the substrate part, a frequency modulation cavity is formed between the substrate part and the base, the polished rod part partially extends into the frequency modulation cavity, and the cap part is located above the substrate part and annularly arranged outside the cylinder part. The limiting piece is connected to the column part in a sleeving mode, located below the cap part and connected with the cap part in an up-down abutting mode. According to the device, chippings are prevented from falling below the cover plate, and the stability of the adjusting screw in the adjusting process is guaranteed.

An apparatus comprising a resonator structure comprising a first transmission line and first two symmetric ring-shaped stubs with substantially equal width and length, placed substantially in a middle of the first transmission line. The apparatus further comprises a cross-coupling line structure for induction of crosstalk, the cross-coupling line structure comprising a second transmission line and second two symmetric ring-shaped stubs, wherein the second transmission line is coupled to a DC or pulsed voltage source.

A system, for measuring a dielectric property of a medium, includes: a resonator; an oscillator electrically coupled to the resonator and configured to generate an electrical signal representing an oscillation of the oscillator when the resonator is disposed in a vicinity of the medium; and measuring circuitry that receives the electrical signal. The measuring circuitry determines, from the electrical signal, at least one of a resonance frequency of the resonator and a quality factor of the resonator. The measuring circuitry determines, from the at least one of the resonance frequency and the quality factor, the dielectric property of the medium.

The invention provides a broadband filtering device and a multi-system access platform, and relates to the technical field of multi-system access platforms, and the broadband filtering device comprises a dielectric substrate; the resonator is arranged on the surface of the dielectric substrate; and the plurality of input units are wound on the resonator, each input unit comprises a first coupling line, a second coupling line and an input piece which are arranged on the surface of the dielectric substrate, the first coupling line and the second coupling line are connected with the input piece, the first coupling line and the second coupling line are coupled with the resonator, and the input piece is used for inputting an electric signal. According to the broadband filtering device and the multi-system access platform provided by the invention, the problem that the bandwidth is relatively narrow when a filtering device works in the prior art is solved.

Localized heating can be provided using fixed-frequency planar transmission line resonators arranged along a main-line, and tuning an electromagnetic input signal frequency applied to the main line to selectively address and energize one or more planar resonators for also addressing and energizing one or more correspondingly located active substrate transducer heat sources for depositing heat in an adjacent active substrate. More generally, adjusting input signal frequency to select one or more planar resonators arranged along a main line can be used to selectively address and energize an electromagnetic-to-heat, an electromagnetic-to-vibration, or other transducer to controllably direct energy toward a desired transducer load.

To suppress the generation of unnecessary radiation.SOLUTION: An antenna includes a resonator formed by a ground conductor plate, and at least a portion of the ground conductor plate has a notch, the notch satisfies a condition that the notch exists at the position of at least a part of the antinode of a virtual standing wave which is a standing wave that may occur when there is no notch.SELECTED DRAWING: Figure 4

The invention is generally related to the field of quantum computing and particularly to a quantum processing unit comprising at least one superconducting qubit based on phase-biased linear and non-linear inductive-energy elements. A superconducting phase difference across the linear and non-linear inductive-energy elements is biased, for example, by an external magnetic field, such that quadratic potential energy terms of the linear and non-linear inductive-energy elements are cancelled at least partly. In a preferred embodiment, such cancellation is at least 30%. By so doing, it is possible to implement a high-coherence high-anharmonicity superconducting qubit design.

A quantum interconnect module includes a quantum memory that has a dual arm interferometer embedded therein. The dual arm interferometer has a first arm within a crystal and a second arm within the crystal. The interferometer is coupled to a photon source. A microwave resonator has a waveguide coupled to a microwave source. The microwave resonator is coupled to the first arm of the quantum memory. The interferometer generates an output based on the microwave source.

The invention relates to the technical field of microwave communication, in particular to a stepped transmission band line shielding cavity resonance suppression structure, which comprises a shielding shell provided with an open accommodating cavity; the transmission band line is arranged in the accommodating cavity of the shielding shell; and the shielding cover plate is used for covering the shielding shell, and a convex block is integrally formed on the lower surface of the shielding cover plate. The bump structure is integrally formed on the shielding cover plate, so that resonance suppression of the shielding cavity is realized, and the influence of cavity resonance on the performance of the transmission band line can be reduced or even eliminated through introduction of the bump structure.

The invention discloses PZT-based ferroelectric ceramic with high radial resonant frequency and temperature stability as well as a preparation method and application of the PZT-based ferroelectric ceramic. The composition of the PZT-based ferroelectric ceramic is 0.1 Pb (Yb1 / 2Nb1 / 2) O3-0.9 Pb (Zr1-xTix) O3 (0.1 PYN-0. 9PZT). According to the invention, a large signal test system is adopted to obtain data similar to actual working conditions, and data fitting and differential processing are combined to more reliably evaluate the radial resonant frequency temperature stability. It is found that components with x equal to 0.56 are excellent in performance, and the radial resonant frequency temperature coefficient TCfr (25 DEG C) is 64 * 10 <-6 > / DEG C under small signal excitation; under large signal excitation, when Eac is increased from 5V / mm to 20V / mm, TCfr (25 DEG C) is changed from 0 * 10 <-6 > / DEG C to-68.3 * 10 <-6 > / DEG C. In addition, the component is simple in preparation method, low in raw material cost and wide in application prospect.

Scalable and easily manufactured cavity resonator radiator arrays for millimeter wave or terahertz phased array antenna applications are provided. In one aspect, an antenna device includes: a first component including a substrate having antenna feedlines within a first dielectric and a ground plane disposed on the first dielectric; a second component, coupled to the first component, including a metallic grid having a plurality of cavities filled with a second dielectric to provide an array of cavity resonator radiators, where the ground plane includes aperture slots between the antenna feedlines and the cavity resonator radiators. The antenna feedlines can include first and second antenna feedlines for dual-polarization, located in different layers, for enhanced port isolation. A method of forming an antenna device is also provided where the metallic grid having the plurality of cavities filled with the second dielectric can be formed using 3D printing, metal stamping and / or laser cutting.

Embodiments relate to a coaxial double motor for tuning an RF filter whose one motor is equipped with two coaxial shafts for controlling a tuning screwdriver for tightening a tuning screw of an RF filter and a nut driver for tightening a nut thereof and that is implemented to make one motor independently rotate one shaft for controlling a tuning screwdriver of an RF filter and the other shaft for controlling a nut driver thereof; and an RF filter tuning apparatus using the same and a method thereof.

A resonating structure and a dielectric filter having the same are disclosed. The resonating structure comprises a body, at least one set of negative coupling holes, and a conductive material layer. The body is made of a solid dielectric material and comprises at least two resonators. The negative coupling holes are formed at a connection between two adjacent resonators. Each set of negative coupling holes comprises a first blind hole and a second blind hole disposed on two opposite surfaces of the body respectively. The first blind hole and the second blind hole are offset from each other in a plane perpendicular to a direction along which the first or second blind hole is dug. The conductive material layer covers surfaces of the body and surfaces of the first blind hole and the second blind hole.

The present disclosure relates to a resonance element (120) for a cavity filter (1), the resonance element made of a metal sheet and comprising a planar portion (1200) to be positioned facing a first inner side of a resonance cavity of the cavity filter and an elongate supporting portion (1210) extending from the planar portion towards the second inner side of the resonance cavity opposite to the first inner side and connected therewith in a grounding state, wherein the planar portion (1200) is configured to be substantially in an E-shape, an F-shape, an L-shape or a T-shape when viewed along a direction perpendicular to a plane of the planar portion. The present disclosure also relates to a one-piece resonance member comprising the above resonance element and a cavity filter comprising the above-said resonance element and / or the above-said one-piece resonance member.

The invention belongs to the technical field of electronic materials, and provides a microwave dielectric material, a preparation method thereof and an electronic component. The microwave dielectric material is prepared from the following raw materials in percentage by weight: 5wt%-20wt% of calcium-aluminum-boron glass, 60wt%-85wt% of SiO2 and 2wt%-15wt% of an additive, wherein the total weight percentage of the calcium-aluminum-boron glass, the SiO2 and the additive is 100%; wherein the additive comprises at least one of B2O3, Li2O and Al2O3, and at least one of ZnO and TiO2. The microwave dielectric material provided by the invention has a relatively low dielectric constant, can meet the high-frequency application requirement of the microwave dielectric material, has relatively low dielectric loss, can effectively reduce the energy loss of a system, also has a near-zero frequency temperature coefficient, and can ensure the frequency temperature property of a product at different use temperatures.

The invention discloses zinc borate microwave dielectric ceramic as well as a preparation method and application thereof, and relates to the technical field of microwave ceramic. The general chemical formula of the ceramic is Zn3BxO (3x + 6) / 2, wherein x is more than or equal to 6.5 and less than or equal to 8. The zinc borate ceramic is synthesized through a traditional solid phase sintering method, the sintering temperature ranges from 850 DEG C to 975 DEG C, the dielectric constant ranges from 3.6 to 7.6, and the highest quality factor can reach 78200 GHz. The preparation method can provide an alternative method for preparation of microwave communication component materials such as 6G communication resonators and filters, and has a wide application prospect.

The invention relates to the technical field of communication, in particular to a miniaturized wide-passband filter based on an EMSIW and a microstrip resonator. According to the miniaturized wide-passband filter, the two EMSIW cavities are adopted, the size of the filter can be effectively reduced, high-order modes TE120, TE210, TE220 and TE130 cannot be propagated in the EMSIW cavities, and therefore the filter has a wide stop band. Two microstrip resonators are embedded at a coupling window between two EMSIW cavities, and four-order quasi-elliptical filtering response is realized under the condition that no extra circuit area is occupied. Compared with other EMSIW filters, the filter has the advantages of being small in size, wide in passband, wide in stop band and good in selectivity, and has potential application value in a communication system.

A quantum circuit and related manufacturing method are disclosed. The quantum circuit comprises a vertical Josephson junction (1001) formed by a bottom electrode (810) in a first superconducting material layer, a tunnel barrier (830), and a top electrode (820) in a second superconducting material layer. A contact portion (811) and a coupling portion (812) of the bottom electrode are located inside and outside the Josephson junction, respectively. A transmon qubit of the quantum circuit comprises the Josephson junction and a shunt capacitor formed by the top electrode and the contact portion of the bottom electrode as capacitor plates. A readout circuit is capacitively coupled to the bottom electrode through the coupling portion and includes a coupling head (861). The coupling portion is fitted into a recessed portion of the coupling head. The top electrode is configured as a floating electrode, not resistively coupled to the first superconducting material layer.

A system and method for transfer of signals between an inside of a cryogenic system and an external environment including at least one optical source (e.g., a laser) for generating optical input signals and at least one fibre for transferring modulated optical signals to the inside of the cryogenic system and receiving optical output signals from the inside of the cryogenic system. A plurality of detectors, located in the external environment, is used for detecting the optical output signals and are connected to the fibre. A plurality of first transducers converts the modulated optical signals to microwave input signals and a plurality of second transducers converts the microwave input signals to optical output signals. A first microwave impedance matching resonator is connected to the plurality of first transducers and a second microwave impedance matching resonator is connected to the plurality of second transducers.

The embodiment of the invention provides an adjusting device of a matching column and a using method of the adjusting device. The adjusting device comprises a supporting component and an adjusting component. The microwave device comprises a shell and a matching column arranged in the shell. The supporting part is used for being fixedly connected with the shell; one end of the adjusting part and the supporting part form a plane pair, and the other end of the adjusting part is connected with the matching column, so that the position of the matching column in the microwave device is changed by adjusting the relative position of the supporting part and the adjusting part. According to the scheme provided by the embodiment of the invention, in the debugging process of the microwave device, the dismounting times of the microwave device, the first detection device and the second detection device can be reduced, and the convenience of adjusting the matching column is improved.

The invention discloses a quantum bit, a quantum chip and a quantum computer, and belongs to the technical field of quantum chip manufacturing. The quantum bit is arranged on the substrate and comprises a Josephson junction arranged on the surface of the substrate; the two through holes are adjacent to the Josephson junction, penetrate through the substrate and are used for forming a bit capacitor, and the bit capacitor and the Josephson junction jointly form the quantum bit. Through the above mode, the through hole type bit capacitor provided by the invention occupies a smaller area on the surface of the substrate, so that more quantum bits can be arranged on the limited surface of the substrate.

A resonator according to the present disclosure includes: a dielectric; conductor plates provided so as to enclose the dielectric; and a plurality of flat and conductive patches arranged inside the dielectric along a bottom surface of the conductor plates.