74results about "Resonators" patented technology

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.

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.

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 application discloses a double-rotation-in-rotation-out structure microstrip resonator and microwave filter, and relates to the technical field of microwave communication. The opening end of the first rotation-in-rotation-out structure and the opening end of the second rotation-in-rotation-out structure are opposite and diagonally symmetrical. The first rotation-in-rotation-out structure and the second rotation-in-rotation-out structure are both double-line structures, which are wound in a character-shaped manner at a set initial position, and when wound to a preset terminal position, the inner line is elongated until a U-shaped structure surrounds the part wound in the character-shaped manner. The outer lines of the two double-line structures are connected through a first microstrip line. The double-line structure is composed of two parallel microstrip lines, and the two parallel microstrip lines are connected through a preset microstrip line at the corresponding set initial position. The application aims to solve the problem that it is difficult to achieve extremely weak coupling of the resonator at a small interval, and improve the stability of the coupling.

A quantum device (1) includes a qubit substrate (170) having qubits and conductive pads coupled to the qubits, the qubit substrate (170) having a first thermal expansion coefficient; a first support (210) having a second thermal expansion coefficient; a plurality of second supports (220) disposed between the qubit substrate (170) and the first support (210), each having a third thermal expansion coefficient a plurality of coupling members (230) each coupling the first support (210) and a corresponding second support of the second supports (220); and spring pins (310) supported by the second supports and contacting the conductive pads. A control signal for controlling a state of each of the qubits is supplied to a corresponding conductive pad of the conductive pads through a corresponding spring pin of the spring pins (310). An absolute value of a difference between the first thermal expansion coefficient and the second thermal expansion coefficient is smaller than an absolute value of a difference between the first thermal expansion coefficient and the third thermal expansion coefficient.

The application relates to the communication field and provides a multimode resonator and a filter. The multimode resonator comprises a resonator shell and a dielectric resonant piece. The dielectric resonant piece is arranged in the resonator shell and is connected to a first wall of the resonator shell. The dielectric resonant piece is provided with a first opening structure in a first radial direction and a second opening structure in a second radial direction. The first radial direction and the second radial direction are perpendicular to a central axis of the dielectric resonant piece. The first opening structure and the second opening structure are non-rotationally symmetrical structures along the central axis of the dielectric resonant piece, so that two electric field polarization directions of the HE mode are along the first radial direction and the second radial direction respectively. The multimode resonator can reduce the requirement for processing error and processing precision based on the first opening structure and the second opening structure, accurately control the two electric field polarization directions of the HE mode along the preset first radial direction and the second radial direction, improve the processing convenience and consistency of the multimode resonator, and facilitate the related coupling design of the HE mode of the multimode resonator.

A high-frequency tunable bandstop filter based on a YIG substrate belongs to the field of microwave magnetic device technology. It includes a YIG substrate, functional metal layers and ground metal layers formed on the front and back sides of the YIG substrate; the functional metal layers include a microstrip line structure penetrating the YIG substrate, and a square open-loop resonant ring structure disposed on one side of the microstrip line structure. This invention utilizes the tunable permeability of the YIG substrate as a tuning source, overcoming the limitations of traditional fixed resonant structures and methods using semiconductor varactor diodes, ferroelectric materials, or piezoelectric materials, which cannot meet the poor adaptability to high-frequency scenarios and environments. It achieves precise suppression of dynamic electromagnetic interference frequencies at their source; by employing a composite structure of a square open-loop resonant ring and a microstrip line, and YIG substrate-compatible semiconductor wafer technology, it achieves real-time high-frequency signal tuning processing, meeting the current low-cost and high-integration industrial application value.

A quantum node includes one or more communication qubits, one or more interior qubits coupled to the one or more communication qubits with interior tunable couplers, a communication tunable coupler coupled to each of the one or more communication qubits, and a communication resonator coupled to each of the communication tunable couplers. In addition, a distributed quantum computing system includes two or more quantum nodes, and one or more coaxial cables or coplanar waveguides connecting the two or more quantum nodes together using at least one of the communication resonators of the two or more quantum nodes. Entanglement and fabrication methods of the quantum nodes are also described.

An ultra-wideband millimeter-wave filter based on TGV belongs to the field of filters. It includes an input conversion port, a tapered microstrip line structure, an input tap, an output tap, and an output conversion port located on the front side of a glass substrate, and a ground metal layer located on the back side of the glass substrate. The tapered microstrip line structure is connected to the ground metal layer through a metallized via penetrating the glass substrate. The input conversion port is connected to one end of the tapered microstrip line structure via the input tap, and the output conversion port is connected to the other end of the tapered microstrip line structure via the output tap. This invention uses a glass substrate instead of a traditional silicon semiconductor substrate, resulting in higher surface smoothness, lower loss performance, and superior high-frequency response in the millimeter-wave band, significantly improving microwave performance. The use of a tapered line resonator offers greater design freedom, smaller size, and higher integration compared to a uniform impedance resonator, and reduces the impact of discontinuities at the step junction compared to a step impedance resonator.

A thin film type resonator used in a wireless power transmission system is proposed together with a design method thereof. The thin film type resonator may include a thin film line formed in a spiral shape. The thin film line may have a form factor in which a width and a pitch of the thin film line gradually increase from an innermost portion to an outermost portion.

To provide a calculation device that can improve characteristics.SOLUTION: According to an embodiment, a calculation device includes an element part, a first conductive part, a second conductive part, a first coupling conductive part, and a control part. The element part includes a first structure, a second structure, and a first coupling structure. The first structure includes a first cavity resonator, a first another cavity resonator, and a first coupler. The second structure includes a second cavity resonator, a second another cavity resonator, and a second coupler. The first coupling structure can couple the first structure and the second structure to each other. The control part can supply a first AC signal including an AC component to the first conductive part. The control part can supply a second AC signal including an AC component to the second conductive part. The control part can supply a first DC pulse signal to the first coupling conductive part.SELECTED DRAWING: Figure 1

This application relates to the field of communications, providing a multimode resonator and filter. The multimode resonator has at least two resonance modes: HE mode and HE mode. The multimode resonator includes a resonator housing, a dielectric resonator, and a coupling structure. The dielectric resonator is disposed within the resonator housing and connected to a first wall of the housing. The two electric field polarization directions of the HE mode are along a first radial direction and a second radial direction, respectively, and the first and second radial directions intersect perpendicularly at the central axis of the dielectric resonator. The coupling structure is disposed at one end of the dielectric resonator and intersects perpendicularly at the central axis of the dielectric resonator. The coupling structure is set at an angle to both the first and second radial directions to achieve HE dual-mode coupling. The multimode resonator can achieve HE dual-mode coupling through a simplified and optimized coupling structure, resulting in better coupling performance. This optimizes the structural design, coupling design, and overall performance of the multimode resonator, and facilitates the simulation design of the multimode resonator.

This invention discloses a method for testing the microwave conductivity of planar materials, comprising: fabricating a first resonant cavity using a known material; measuring the resonant frequency of the first resonant cavity, the lower sideband and upper sideband corresponding to a 3dB drop in the maximum value of the transmission coefficient, and calculating the loaded and unloaded quality factors and a first intermediate parameter using a vector network analyzer; fabricating a second resonant cavity using the known material, wherein the height of the first resonant cavity is twice that of the second resonant cavity; obtaining the loaded and unloaded quality factors and a second intermediate parameter of the second resonant cavity through measurement and calculation; replacing the bottom surface of the second resonant cavity with a bottom surface fabricated using the material to be tested, forming a third resonant cavity; obtaining the loaded and unloaded quality factors of the third resonant cavity through measurement and calculation, and calculating the conductivity of the material to be tested based on the first intermediate parameter, the second intermediate parameter, and the resonant frequency and unloaded quality factor of the third resonant cavity. This invention can simply and effectively test the microwave conductivity of materials.

The present disclosure relates to a dual-mode filter, comprising: an electrically conductive casing defining a first resonance cavity and a second resonance cavity located adjacently and separated from each other by a partition wall inside the casing; a first cross-shaped TM dual mode dielectric resonator provided in the first resonance cavity and comprising a crossing portion and two horizontal arms and two vertical arms integrally extending from its crossing portion; and a second cross-shaped TM dual mode dielectric resonator provided in the second resonance cavity and comprising a crossing portion and two horizontal arms and two vertical arms integrally extending from its crossing portion. The first resonator and the second resonator are positioned substantially parallel to each other and coupled by a main coupling structure extending through the partition wall. An orthogonality-disrupting coupling structure is provided on a crossing portion of each of the first and second resonators and extends diagonally or parallel to a diagonal section of the crossing portion such that a first operation mode and a second operation mode of the resonator where the orthogonality-disrupting coupling structure is provided are coupled thereby. At least one cross-coupling window is provided in the partition wall. At least one conductive strip each extends across one cross-coupling window, without any conductive contact with the resonators and walls of the resonance cavities. Orientations of the orthogonality-disrupting coupling structures, a position, a shape and a size of the cross-coupling window, and a shape and a size of the conductive strip are selected in such a manner that the orthogonality-disrupting coupling structures, the at least one cross-coupling window and the at least one conductive strip cooperate with the main coupling structure together so as to have transmission zeros positioned in a controllable manner with respect to a passband of the filter. The present disclosure also relates to a communication device comprising an above-said dual-mode filter.

The application discloses a wideband equalization circuit based on microstrip ring resonators and adjustable lumped elements, and belongs to the technical field of radio frequency communication. The circuit comprises i microstrip ring resonators and adjustable lumped elements connected across the microstrip ring resonators, wherein i is greater than or equal to 1 and is a positive integer; the microstrip ring resonators are connected through microstrip lines, and the first and last two microstrip ring resonators are connected with an input port and an output port through microstrip lines. The application connects adjustable lumped elements across the microstrip ring resonators, and realizes multiple adjustments of the working frequency, working bandwidth and amplitude equalization of the circuit through impedance adjustment of the adjustable lumped elements, which is beneficial to multifunctional and reconfigurable design of equipment. In addition, the whole circuit structure is simple and can meet the requirements of miniaturization and light weight of equipment.

An LC filter (1) comprises: a ground electrode (3) and an electrode (2) facing each other with a gap therebetween; a resonator (7) positioned between the ground electrode (3) and the electrode (2); a via conductor (4) connected to the ground electrode (3) and the electrode (2); and a power supply conductor (8) connected to the electrode (2). The resonator (7) includes: an electrode (5) that is disposed apart from the electrode (2) and constitutes a capacitor component together with the electrode (2); and a via conductor (6) that is connected to the electrode (5) and the ground electrode (3) and has an inductor component. The LC filter (1) is supplied with power via the power supply conductor (8).

A method for manufacturing a quantum device, the method includes: mounting a qubit chip over a first substrate by using a first bump; and mounting the first substrate over a second substrate by, after mounting the qubit chip, locally heating a second bump provided at a position that does not overlap the qubit chip in plan view, wherein no joining member that joins the first substrate and the second substrate is provided between the first substrate and the second substrate at a position that overlaps the qubit chip in plan view.

The present invention relates to a tunable waveguide resonator and a method of tuning a frequency of the tunable waveguide resonator. The waveguide resonator comprises a waveguide part having a plurality of walls where one of the plurality of walls at least partly comprises a tuning element. The tuning element has a first main surface facing toward a first main surface of an inner wall of one other wall of the plurality of walls. The tuning element is caused to, in response to a change in a temperature of the tuning element be reversibly displaced with respect to a reference plane of the first main surface of the tuning element along an extension perpendicular to the first main surface of the one other inner wall and whereby changing a dimension of a cavity of the tunable wave-guide resonator.

The present application relates to a laminated filter device. The filter device includes a laminate including a plurality of dielectric layers laminated, and first to third resonators integrated with the laminate. The first to third resonators each include a first conductor portion, and a second conductor portion electrically connected to the first conductor portion and having an impedance smaller than that of the first conductor portion. The first conductor portion and the second conductor portion are disposed at different positions in a lamination direction.

Filters include a housing and at least first through fourth resonators are mounted within the housing. The first resonator is configured to couple with the second resonator and the third resonator but not the fourth resonator. The second resonator is configured to couple with the first resonator and the fourth resonator but not the third resonator. The third resonator is configured to couple with the first resonator and the fourth resonator but not the second resonator. The fourth resonator is configured to couple with the second resonator and the third resonator but not the first resonator. The first, second and fourth resonators are configured to resonate within a passband of the filter, while the third resonator is configured to resonate outside the passband of the filter.

Disclosed in the present invention are a circularly polarized intelligent metamaterial radio frequency enhancer (1) and a bilateral breast magnetic resonance imaging system (2). The circularly polarized intelligent metamaterial radio frequency enhancer (1) comprises a hollow cylindrical dielectric substrate (11), conductive rings (12), conductive connecting members (13), and tunable capacitors (14). A plurality of conductive rings (12) are sleeved on the outer circumference of the hollow cylindrical dielectric substrate (11) along the axial direction thereof. Each conductive ring (12) is provided with an opening (121) in the circumferential direction of the conductive ring (12). A tunable capacitor (14) is disposed in the opening (121) of each conductive ring (12). Every two adjacent conductive rings (12) are connected by means of a conductive connecting member (13). The bilateral breast magnetic resonance imaging system (2) comprises a pair of circularly polarized intelligent metamaterial radio frequency enhancers (1), wherein the pair of circularly polarized intelligent metamaterial radio frequency enhancers (1) respectively correspond to bilateral breast positions of a human body.

A resonator is disposed on a circuit board and includes a first coupling line, a second coupling line, at least one first resonant line, and at least one ground plane. The at least one first resonant line forms a loop shape. The first coupling line, the second coupling line, and the at least one first resonant line are located on a conductive layer of the circuit board. The first coupling line and the second coupling line are parallel to a first coupling portion and a second coupling portion of the at least one first resonant line, respectively. The first coupling line and the second coupling line couple the at least one first resonant line and are disposed inside the at least one first resonant line. The at least one ground plane is located on another conductive layer of the circuit board. Thus, the layout configuration flexibility of the circuit board is improved. The present disclosure also relates to a circuit element.

A quantum device includes a qubit substrate having qubits and conductive pads coupled to the qubits, the qubit substrate having a first thermal expansion coefficient; a first support having a second thermal expansion coefficient; a plurality of second supports each having a third thermal expansion coefficient disposed between the qubit substrate and the first support; a plurality of coupling members, each coupling the first support and a corresponding one of the second supports; and spring pins supported by the second supports and in contact with the conductive pads, wherein a control signal for controlling a state of each of the qubits is supplied to the corresponding conductive pad through the corresponding spring pin, and wherein an absolute value of a difference between the first and the second thermal expansion coefficients is smaller than an absolute value of a difference between the first and the third thermal expansion coefficients.

Techniques regarding encapsulating one or more superconducting devices of a quantum processor (100) are provided. For example, one or more embodiments described herein can regard a method that can comprise depositing an adhesion layer (402) onto a superconducting resonator (102) and a silicon substrate (104) that are comprised within a quantum processor. The superconducting resonator can be positioned on the silicon substrate. Also, the adhesion layer can comprise a chemical compound having a thiol functional group.

A kind of resonance rod includes body stem, resonance disc part and coupling surface part.The body stem has top end and bottom end oppositely arranged in the vertical direction of its extension, and the body stem is provided with inner cavity between top end and bottom end.The resonance disc part is integrally formed on the top end of the body stem.The coupling surface part is integrally formed on the bottom end of the body stem.The body stem includes first outer wall surface facing away from the inner cavity in the first direction, and the coupling surface part includes second outer wall surface facing away from the inner cavity in the second direction perpendicular to the first direction, and the first outer wall surface and the second outer wall surface have first connecting camber surface between them.The inner cavity has central axis extending in the vertical direction, and in the vertical section along the central axis, the wall thickness T of the body stem is 0.5mm-1mm, and the arc length R1 of the first connecting camber surface is not more than 0.25mm.The present application also relates to a manufacturing method of resonance rod.The present application has better coupling effect, simple manufacturing process, improved precision and reduced cost.

A coupling resonator circuit includes a capacitive portion that includes a capacitive plate having a geometrical shape; and an inductive portion that is coupled to the capacitive portion. The inductive portion includes a transmission line having a first end and a second end, and the transmission line tapers from the first end in the direction of the second end such that a width of the transmission line at the first end is greater than a width of the transmission line at the second end. The coupling resonator circuit is configured to resonate at a desired coupling frequency; and dimensions of the capacitive portion and the inductive portion determines a separation in frequency between the desired coupling frequency and one or more resonant frequencies that are nearest to the desired coupling frequency.

A dielectric filter is provided including at least two connected dielectric resonators and a hole group formed between two adjacent dielectric resonators. Each dielectric resonator includes a dielectric body and a resonant cavity. The dielectric body includes a top surface and a bottom surface along a first direction Z of the dielectric filter. The resonant cavity runs through the top surface or the bottom surface. The dielectric body further includes a first side surface and a second side surface along a second direction Y. Each hole group includes a first hole and a second hole. Two ends of the first hole respectively run through the top surface and the bottom surface. The second hole runs through at least one of the first side surface and the second side surface. Projections of the first hole and the second hole intersect along a third direction X of the dielectric filter.