308results about "Resonators" patented technology

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.

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.

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 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.

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.

This application discloses an electronic device applied in the field of electronic technology. The electronic device includes: a resonator, a connector, a tuner, and a ground plane. The resonator is electrically connected to the ground plane in sequence through the connector and the tuner. The tuner is used to adjust the frequency band of the clutter generated by the resonator to be outside the operating frequency band of the antenna of the electronic device.

The invention discloses a Fabry-Perot resonant cavity for testing a Josephson junction and a manufacturing method, and relates to the technical field of Josephson junction testing devices. Comprising a reflecting spherical surface and a reflecting plane, and the reflecting plane is formed by the surface of one side of the metal reflecting substrate; a patterned dielectric layer is locally arranged on the surface of the metal reflection substrate; a metal redistribution layer is arranged on the patterned dielectric layer, and the metal redistribution layer forms an electrical path connected with a Josephson junction chip; wherein the patterned dielectric layer is only located right below the area covered by the metal redistribution layer. According to the invention, reliable electrical connection of Josephson junctions can be realized on the premise of not sacrificing the high Q value characteristic of the resonant cavity.

The invention discloses a superconducting microwave resonant cavity, a band elimination filter and a frequency control method, and relates to the technical field of superconducting microwave resonant cavities. The superconducting microwave resonant cavity comprises a thin film layer, a first superconducting electrode, a second superconducting electrode, a third superconducting electrode, a first port and a second port. The first superconducting electrode is arranged on the first surface of the thin film layer; the second superconducting electrode is arranged on one side of the second surface of the thin film layer, a gap exists between the second superconducting electrode and the second surface, and the first end of the second superconducting electrode is connected with the first end of the first superconducting electrode; the third superconducting electrode is arranged on the first surface; the first port is coupled with the first end of the first superconducting electrode and is coupled with the first end of the second superconducting electrode, and the first port receives an external input signal and outputs a target signal; and the second port is connected with the third superconducting electrode and receives an external direct current control signal. The resonant frequency of the microwave resonant cavity is adjustable.

The filter of the present application includes first and second resonators, and first and second stub resonators. The first and second resonators each include a first conductor portion, and a second conductor portion electrically connected to the first conductor portion and having a smaller impedance than the first conductor portion. The first stub resonator is electrically connected to the first conductor portion of the first resonator. The second stub resonator is electrically connected to the first conductor portion of the second resonator. The shape of the first stub resonator and the shape of the second stub resonator are different from each other.

A device includes a source region, a drain region, a channel region, a pair of depletion gates, an accumulation gate, and a superconductive resonator. The channel region is between the source region and the drain region. The pair of depletion gates are spaced apart from each other. The pair of depletion gates both overlap the channel region and define a quantum dot qubit region in the channel region and between the pair of depletion gates. The accumulation gate is above and crossing the pair of depletion gates. The superconductive resonator is laterally adjacent the quantum dot qubit region.

The invention discloses a quantum device, a quantum chip and a quantum computer, and belongs to the technical field of quantum chip manufacturing. The quantum device comprises a substrate of which the surface is provided with quantum bits; the resonant cavity and the quantum bit are arranged on the substrate in a coplanar mode, and the resonant cavity is coupled with the quantum bit and used for reading the quantum state of the quantum bit; wherein the resonant cavity takes the quantum bit as a starting point and spirally extends in a direction far away from the starting point. Through the mode, the quantum device provided by the invention comprises the spiral resonant cavity, and the resonant cavity in the form is smaller in size, namely, the area occupied by the surface of the substrate is smaller, so that more quantum devices such as quantum bits can be integrated on the surface of the substrate with the same size.

The application discloses a double-resonance microwave sensor and relates to the technical field of sensors, which comprises a dielectric plate, the front surface of the dielectric plate is provided with a microwave resonance layer, and the microwave resonance layer is etched with a complementary open resonant unit; the complementary open resonant unit comprises concentrically arranged inner ring grooves and outer ring grooves, one side of the inner ring grooves is provided with an outwardly extending connecting bridge, the connecting bridge is in communication with the outer ring grooves; the two sides of the outer ring grooves are respectively provided with interdigitated slotted units that are symmetrical to each other; and the back surface of the dielectric plate is provided with a microstrip line corresponding to the complementary open resonant unit. The double-resonance structure of the complementary open resonant unit and the microstrip line coupling can excite a double-resonance transmission response, so that the detection precision and sensitivity of the sensor are improved.

The invention relates to the technical field of ceramic materials, in particular to temperature-stable low-loss low-dielectric tetragonal lithium-based microwave dielectric ceramic and a preparation method thereof, the chemical formula of the microwave dielectric ceramic is LiScO2, and the preparation raw materials are Li2CO3 and Sc2O3. The preparation method comprises the following steps: weighing Li2CO3 powder and Sc2O3 powder according to a certain proportion, mixing, sequentially carrying out wet grinding and drying, pre-sintering for 4-8 hours in an air atmosphere at the temperature of 700 DEG C to obtain pre-sintered powder, carrying out secondary ball milling and drying on the pre-sintered powder, adding a binder, granulating, carrying out compression molding, and finally sintering for 4-8 hours in an air atmosphere at the temperature of 875-925 DEG C, so as to obtain the Li2CO3 / Sc2O3 composite material. The tetragonal lithium-based microwave dielectric ceramic can be obtained. The LiScO2 microwave dielectric ceramic prepared at the sintering temperature of 900 DEG C has a near-zero temperature coefficient of resonance frequency (-3.4 ppm / DEG C), can ensure the thermal stability of devices, and is widely used for manufacturing various dielectric antenna substrates, resonators, filters and other microwave devices.

A device for measuring a property of a substrate comprises an enclosure, two resonators, and two probes. The substrate has a top surface, and the enclosure defines a cavity for placing the substrate. The resonators extend into the cavity of the enclosure. The probes extend into the cavity, and each of the probes comprises a loop that extends about an axis that is substantially parallel to the top surface of the substrate so that the probes are operable to excite a transverse magnetic mode signal in the cavity.

The application discloses a dielectric resonator, comprising: a cavity; a cover plate, comprising a first cover plate and a second cover plate, the second cover plate being crimped on the first cover plate; a tuning screw being installed on the cover plate; a metal resonant rod being fixed on the bottom of the cavity; a dielectric resonant rod having an upper end surface and a lower end surface, the upper end surface being in contact with the first cover plate, and the lower end surface being in contact with the metal resonant rod; the first cover plate having a first opening, a first slot portion and a second slot portion, the first slot portion being located radially outside the first opening and axially above the dielectric resonant rod, an elastic member being arranged in the first slot portion, and the second slot portion being located radially outside the first slot portion. The dielectric resonator adopts a double-layer thick cover plate, and through designing an inner and outer double-cut slot structure on the first cover plate, the upper and lower end surfaces of the dielectric resonant rod are kept in good contact in a simple and controllable structure.

A system for tracking diet and nutrition includes an oral module configured to be affixed within a mouth of a user and including a set of salivary sensors responsive to a level of at least one nutrient. The system also includes a set of eating event sensors responsive to an eating event. The set of eating event sensors can be included in the oral module, or can be included in a body module configured to be affixed adjacent to a body part of the user.

The invention discloses a resonance regulation and control system based on symmetry control. The resonance regulation and control system comprises a low-symmetry metal spiral structure and an excitation microstrip circuit. The low-symmetry metal spiral structure is composed of four metal spiral arms, and the four metal spiral arms have two different lengths. The excitation microstrip circuit sequentially comprises a metal strip, a dielectric substrate layer and a metal ground plane; the resonator introduces an electromagnetic resonance mode excited by a first-order current through the asymmetric design of a low-symmetry metal spiral structure, and realizes the regulation and control of resonance characteristics.

The invention provides a radio frequency resonator and an ion trap experimental device comprising the same. Wherein the radio frequency resonator comprises a shielding shell, an antenna coil and at least one spiral coil; the shielding shell is of a hollow through cylinder structure and is provided with a shielding cavity and a hollow area penetrating through the shielding shell. The antenna coil is at least partially arranged in the shielding cavity and can be connected with a radio frequency signal source; the spiral coil is arranged in the shielding cavity and is in mutual inductance coupling with the antenna coil, and the spiral coil can be connected with a load; the effective length of the antenna coil in the shielding cavity can be changed so as to adjust the mutual inductance intensity with the spiral coil and realize impedance matching. The topological structure of the radio frequency resonator is designed to be the hollow cylinder, the function of placing other devices in the hollow area of the hollow cylinder is achieved, and the radio frequency resonator has the advantage that the radio frequency resonator and the ion trap can be placed in different cold heads when the radio frequency resonator is used in the cryostat. Meanwhile, impedance matching is realized by adjusting mutual inductance in a manner of stretching and retracting the length of the antenna coil without depending on an external LC circuit.

The invention relates to a dual-mode resonator, a dual-mode filter and communication equipment. The dual-mode resonator comprises a first resonator, a second resonator and a first tuning part, the first resonator is a dielectric resonator, the first resonator is provided with a first tuning hole, and the first tuning hole extends from the top face of the first resonator to the bottom in the axial direction. The second resonator is a metal resonator, the second resonator is connected to the top surface of the first resonator in an overlapping manner, the second resonator is provided with an avoiding hole, and the avoiding hole is aligned with the first tuning hole in the axial direction of the second resonator and is communicated with the first tuning hole. The first tuning piece extends into the first tuning hole from the avoiding hole and can adjust the position in the axial direction. When the first tuning part performs tuning operation, the dual-mode resonator does not need to be turned over, so that debugging is more convenient. Moreover, the first tuning part is located at the top of the dual-mode resonator, so that compared with the mode that the first tuning part is arranged at the bottom of the dual-mode resonator, the structure is simplified, and assembly is facilitated.

The application relates to a quick-disassembly waveguide structure for testing the line width of ferrite ferromagnetic resonance, belonging to the field of microwave and millimeter wave band magnetic material parameter testing. The quick-disassembly waveguide structure comprises a main waveguide tube and a quick-disassembly resonant cavity, and the main waveguide tube comprises a first rectangular waveguide, a second rectangular waveguide, a connecting bridge, a waveguide flange and a positioning pin. The quick-disassembly waveguide structure for testing the line width of ferrite ferromagnetic resonance is characterized in that the rectangular waveguide, the waveguide flange, the connecting bridge and the coupling sheet of the resonant cavity are integrally connected to form the main waveguide tube, the quick-disassembly resonant cavity is placed in the gap formed by the connecting bridge, and the quick-disassembly resonant cavity is achieved; the sample loading method of 'filling medium in the cavity and loading the sample through the medium sheet' is adopted, and the loading problem of the 30GHz and above millimeter wave band ferrite FMR test sample is solved.

The utility model discloses a combined resonance rod, comprising a first resonance rod, a second resonance rod, a third resonance rod and a fourth resonance rod, the second resonance rod is located at the upper end of the first resonance rod and extends into the first resonance rod, the third resonance rod is located at the upper end of the second resonance rod and extends into the second resonance rod, and the fourth resonance rod is located at the lower end of the third resonance rod. The third resonance rod penetrates through the second resonance rod and extends into the first resonance rod, the outer wall of the third resonance rod is provided with an external thread, the fourth resonance rod is located at the lower end of the first resonance rod and extends into the third resonance rod, and the outer edge of the lower end of the fourth resonance rod is fixedly connected with a threaded cylinder; the threaded cylinder is located in the first resonance rod, the end face, extending into the first resonance rod, of the threaded cylinder makes contact with the second resonance rod, and the threaded cylinder is in threaded connection with the third resonance rod. According to the utility model, the problem that when a plurality of resonance rods are stored together, the resonance rods are easy to collide with one another, so that the resonance rods are damaged is solved.

A tunable coupler is provided for generating a controllable coupling to at least a first qubit (801). It comprises a first fixed coupling element (803) and a tunable coupling element (804). The first fixed coupling element (803) forms a non-galvanic coupling interface to at least the first qubit (801) at a first end remote from the tunable coupling element (804). The tunable coupling element (804) is positioned adjacent to a non-galvanic coupling interface formed between the first fixed coupling element (803) and a further circuit element (802) at its second end.

To provide a quantum converter and a quantum conversion method capable of improving conversion efficiency even when light with low loss in an optical fiber is used.SOLUTION: The quantum transducer includes a three dimensional cavity resonator, and a nonmagnetic first insulator film and a ferromagnetic or antiferromagnetic second insulator film that are provided in the three dimensional cavity resonator and are stacked on each other, A laminate including an interface between the first insulator film and the second insulator film, a magnetic field application unit configured to apply a magnetic field including a component perpendicular to the interface to the laminate, and a microwave transmission and reception unit configured to transmit and receive microwaves to and from the laminate, wherein the first insulator film and the second insulator film do not include a topological insulator, the second insulator film has an easy magnetization axis along a first axis perpendicular to the interface, and the laminate is irradiated with laser light from a direction inclined with respect to the first axis. Quantum converters can be used, for example, in quantum computing.SELECTED DRAWING: Figure 1

A spherical designer electromagnetic surface plasmon open resonator is provided. The open resonator includes a resonator inner core and a resonator outer shell. The resonator inner core is located in an inner center of the resonator outer shell, and the resonator inner core and the resonator outer shell are coaxial. The disclosure provides a device that implements the superscattering function for incident waves in all incident directions and in all polarization directions, and a spherical open resonator is implemented. The scattering cross section of the disclosure can be more than five times greater than that of a metal sphere of the same size, and the operating frequency can be flexibly designed. By utilizing the characteristic that the scattering cross section of the spherical designer electromagnetic surface plasmon resonator is much greater than its own geometric cross section, the electromagnetic super-scattering device can be implemented.

This invention discloses a linear multi-zero cavity duplexer based on a hybrid resonator. The duplexer comprises a rectangular hollow metal cavity, a common signal terminal at the top of the cavity, and two signal branches on either side. The branches employ a hybrid cascaded structure of single-mode and dual-mode metal resonators, forming a linear topology without cross-coupling. The dual-mode metal resonator can operate simultaneously in inter-plate coupling mode and coaxial mode. The resonant mode order is set by pre-setting the internal inter-plate distance, allowing each branch to generate two preset transmission zeros. This invention achieves a six-pole filtering response using only four resonant cavities, forming a dual passband and generating four preset transmission zeros, ensuring high quality factor and high channel isolation while achieving device miniaturization. This invention features a simple structure, easy fabrication, and independently and precisely adjustable coupling parameters, making it suitable for 5G / 6G communication, emergency communication, and UAV-borne high-performance miniaturized RF front-end applications.

The utility model relates to the technical field of precise instruments, in particular to a high-rigidity resonance rod, which comprises a barrel and a mounting bottom surface, a connecting structure is arranged at the top of the barrel, and the mounting bottom surface is connected to one side, far away from the connecting structure, of the barrel. A connecting ring, an inner ring and a mounting ring are sequentially arranged on the side wall of the cylinder body in a step shape in the direction from the connecting structure to the mounting bottom surface, the connecting ring, the inner ring and the mounting ring are coaxially arranged, and a mounting hole is coaxially formed in the mounting bottom surface relative to the cylinder body; a mounting sleeve is connected to the periphery of the barrel, and a mounting block is arranged on the mounting sleeve and faces the mounting bottom face. According to the utility model, on the premise that the mass is not greatly increased, the structural rigidity is obviously improved, and meanwhile, good frequency stability and high quality factor are kept, so that the increasingly improved performance requirements in the modern precision measurement field are met.

The utility model relates to the field of communication, and provides a multimode resonator and a filter. The multi-mode resonator at least has two resonant modes of an HE mode, the multi-mode resonator comprises a resonator shell, a dielectric resonance piece and a grounding plate piece, and the dielectric resonance piece comprises a dielectric main body and at least three dielectric pins connected to the peripheral side of the dielectric main body; the grounding plates are in one-to-one correspondence with the dielectric pins and are connected to the ends, away from the dielectric main body, of the dielectric pins; the dielectric resonance part and the grounding plate parts are arranged in the resonator shell, and the grounding plate parts are connected to the inner wall of the resonator shell in a grounding mode. Based on the structure, the multi-mode resonator can be used for coupling at least two orthogonal high-Q-value resonance modes of the HE mode in a single cavity, and the performance, the space utilization rate, the usability, the applicability and the practicability of the multi-mode resonator can be improved; moreover, compared with the prior art, the installation convenience and the installation reliability of the dielectric resonance piece can be optimized, and the overall assembly convenience and the assembly reliability of the multimode resonator can be improved.

The present invention relates to a method for manufacturing a tuner comprising: a number of coaxial resonant circuits (21) each mounted such that both opposing ends (21A, 21B) are coupleable to a corresponding tuner (22, 23); a number of first tuners (22) made of a dielectric material each slidably mounted to a first end (21A) of the corresponding coaxial resonant circuit (21) such that the first tuners (22) are moveable relative to the first end (21A) to form a dielectric of a capacitive load associated with the first end (21A) of the corresponding coaxial resonant circuit (21); and a number of second tuners (23) made of a dielectric material each slidably mounted to a second end (21B) of the corresponding coaxial resonant circuit (21). and a second tuner (23) slidably mounted on a first open end (21A) and an opposite second end (21B) of a corresponding coaxial resonant circuit (21), respectively, so as to be movable relative to the second end (21B) to form a dielectric of a capacitive load associated with the opposing ends (21A, 21B) of the coaxial resonant circuit (21), wherein the first and second tuners (22, 23) are movable relative to the corresponding coaxial resonant circuit (21) to adjust the capacitive load associated with the opposing ends (21A, 21B) of the coaxial resonant circuit (21), and ultimately the resonant frequency and mutual coupling coefficient of the coaxial resonant circuit (21).

This heater assembly comprises: an oscillation unit that generates microwaves; a resonance unit that comprises an insertion space in which an aerosol-generating article is accommodated, and that heats the aerosol-generating article by resonance of the microwaves; and a microwave output unit that transmits the microwaves generated by the oscillation unit to the resonance unit, wherein the microwave output unit connected to the oscillation unit is screw-coupled to one region of the resonance unit, thereby coupling the oscillation unit to the resonance unit.