99 results about "Coaxial line" patented technology

This invention provides a broadband circularly polarized slot antenna for partial discharge detection in high-voltage electrical equipment, comprising a first dielectric substrate, a second dielectric substrate, a coupled feed structure, an annular slotted metal patch, a metal ground, a shorting pin, a metal post, and a coaxial line. The first dielectric substrate is disposed parallel to the upper center of the second dielectric substrate. The coupled feed structure is printed on the upper surface of the first dielectric substrate, the annular slotted metal patch is printed on the lower surface of the first dielectric substrate, and the metal ground is printed on the upper surface of the second dielectric substrate. An annular slot is formed in the center of the annular slotted metal patch, and the coupled feed structure is coupled to the annular slot. This invention can better match the complex electromagnetic environment formed by multiple reflections inside high-voltage equipment, thereby improving the acquisition efficiency and detection reliability of partial discharge signals, thus completely solving the detection blind zone problem caused by the random polarization of discharge signals in traditional linearly polarized antennas.

An ultra-wideband end-fire antenna with a common aperture embedded in a metal carrier includes a metal cavity with a coaxial cable compartment on one side. A radiator module is connected to the bottom of the metal cavity via a radiator fixing slot. The radiator module includes a common aperture antenna substrate. A low-frequency radiator is printed on the side of the common aperture antenna substrate closer to the coaxial cable compartment, and a high-frequency radiator is printed on the side farther from the coaxial cable compartment. This invention utilizes a dual-band antenna in a common aperture design to enhance the channel capacity and anti-fading capability of the communication system. At the same time, by achieving the antenna's carrier conformal characteristics, high isolation, and miniaturization, it enriches the antenna's application scenarios and improves the overall performance of the communication system.

The present disclosure provides a ceramic antenna and a preparation method thereof, the ceramic antenna comprising a ceramic substrate in a special shape, and a coaxial line welded on a silver layer printed on the ceramic substrate. The high dielectric plastic ceramic antenna is prepared through the steps of preparing a special ceramic substrate, printing antenna lines, and welding a coaxial line. Compared with the commonly used FPC antenna and LDS antenna, the ceramic antenna has a larger dielectric constant, a smaller antenna size, a lower loss, and a bandwidth basically meeting the WiFi frequency band. The coaxial line is directly welded on the silver layer on the surface of the ceramic, which well meets the connection requirements of a notebook computer network card.

The application discloses a coaxial line and smart glasses, wherein the coaxial line has two end portions and a coaxial line body connecting the two end portions, the coaxial line body comprises a first body section and a second body section, and the cross section of the first body section is different from the shape and / or area of the cross section of the second body section. The technical scheme of the application aims to provide the possibility for miniaturization of the smart glasses.

The application provides an anti-static antenna and a communication device. The anti-static antenna comprises a dielectric substrate, a coaxial line and a radiator. The radiator is arranged on the dielectric substrate. The radiator comprises a radiation part and a grounding part. The radiator is electrically connected with an inner conductor. The grounding part is electrically connected with a shielding layer. The radiator further comprises an anti-static part which is electrically connected between the radiator and the grounding part. The anti-static antenna provided by the application has the advantage of good anti-static effect.

The application discloses a minimally invasive planar ablation antenna, which comprises a microstrip line, an SICL structure and a radiator; the microstrip line is connected with the SICL structure through a first via hole, and the SICL structure is matched with the radiator through a pi matching network; and the radiator is in a serpentine wiring structure. The application designs a planar ablation needle with a very small cross-sectional area, which is different from an ablation needle based on a coaxial line structure and has the advantage of low cost based on PCB processing. The application proposes a method for constructing a pi matching network in the planar ablation antenna, and directly matches the radiator with the SICL, so that the ablation needle has a free length.

The application belongs to the technical field of centrifugal pumps, and provides a micro centrifugal pump guide vane and a processing method, which comprises a reverse guide vane and a positive guide vane. A plurality of welding connection assemblies are arranged on the positive guide vane, the positive guide vane is fixedly connected with the reverse guide vane in the coaxial direction through the plurality of welding connection assemblies, and a welding positioning piece is arranged on the reverse guide vane, which is used for making the reverse guide vane and the positive guide vane on the same axis. The welding connection assembly comprises a plurality of welding holes arranged on the positive guide vane and a plurality of welding points arranged on the reverse guide vane, and the plurality of welding points are arranged in correspondence with the plurality of welding holes. The guide vane is divided into the positive guide vane and the reverse guide vane, which are processed and formed respectively and welded, so that the problem of inconvenient casting processing of the micro flow channel is solved, and the accuracy of the guide vane processing size is ensured through the mode of reserving the welding positioning piece and the processing allowance.

This utility model discloses a female connector with wire ends, including a housing, at least two sets of coaxial cables, shielding terminals, a second fixing member, a first fixing member, and power connection components and shielding wires corresponding to the number of coaxial cables. The housing has accommodating cavities corresponding to the number of coaxial cables, and each power connection component is installed in a corresponding accommodating cavity. The shielding terminals, the second fixing member, and the first fixing member are installed on the housing. The front end of each shielding wire is connected to the shielding terminal, and the rear end of each shielding wire is connected to the rear end of the corresponding coaxial cable. The front end of each coaxial cable is connected to the corresponding power connection component. The first fixing member is installed on the housing and connected to the power connection component. This utility model adds an outer shielding layer to the ordinary FAKRA wire end connector to form a complete shielded link, improving the overall anti-interference capability of the product. Furthermore, the assembly process is simple and quick, solving the problems of poor shielding effect and low assembly efficiency in the prior art.

This invention relates to the field of antenna technology, and particularly to a miniaturized circularly polarized antenna with a wide axial ratio and wide beamwidth. The antenna includes a dielectric substrate, a circular radiating patch unit, metal shorting posts, a coaxial differential feed structure, and a metal ground plane. The circular radiating patch unit consists of a pair of orthogonal fan-shaped cross-printed dipoles. A slot structure is added in the middle along the X-axis to divide the radiator into left and right parts, and three metal shorting posts are added to the end of each fan-shaped cross-printed dipole structure. The feed structure is a differential-feed coaxial cable, with its inner and outer conductors contacting the left and right halves of the circular radiating patch unit, respectively. Simultaneously, due to the slight difference in curvature between the two orthogonal fan-shaped printed dipoles, a phase difference is formed between the pair of orthogonal modes of the circular radiating patch unit, ultimately achieving circularly polarized radiation of the antenna. A metal short-circuit post is applied to the electric field zero of a conventional printed dipole, forming a new half-mode operating mode at low frequencies. Simultaneously, the slot structure improves the impedance characteristics of the half-mode, enabling antenna miniaturization. Due to the radiation contribution of the metal short-circuit post in the horizontal direction, the axial ratio beamwidth of this circularly polarized antenna is significantly extended. This application exhibits excellent forward radiation characteristics, along with miniaturization, a wide axial ratio beamwidth, simple structure, low cost, and ease of fabrication.

This invention provides a conformal antenna array capable of radiating vortex waves and its usage method, comprising a cylindrical conformal support bracket with multiple through holes on its upper surface. An antenna support column is axially movable within each through hole, and the antenna support column is detachably connected to the conformal support bracket via a connector. An antenna element is located at one end of the antenna support column outside the conformal support bracket, and the antenna element is connected to a power divider via a coaxial line. The projection of the multiple antenna elements outside the conformal support bracket onto a horizontal plane is polygonal. Each antenna element includes a first metal sheet, a dielectric substrate, and a second metal sheet stacked from top to bottom. Isolation holes are formed on the second metal sheet and the dielectric substrate, and non-metallic through holes are provided within these isolation holes. A coaxial line passes through the non-metallic through holes and connects to the first metal sheet. Phase modulation is achieved by adjusting the height of the antenna element, providing a simple and effective means for antenna beamforming and vortex mode number variation design, avoiding the complexity and high cost of traditional complex feed networks.

The utility model relates to a color band pipeline extruding machine head belongs to the extruding machine field, including extruding machine head body, the one end of extruding machine head body has extrusion passageway, the inside of extruding machine head body is opened with a plurality of material guiding passageways to corresponding extrusion passageway, and the one end of material guiding passageway towards extrusion passageway is connected with extrusion passageway and sets, the inside of extruding machine head body still rotatably sets up the mounting ring of circular ring shape, and the mounting ring surrounds extrusion passageway and sets up with extrusion passageway coaxial line, and the through hole is opened with corresponding material guiding passageway on the mounting ring, and the through hole and corresponding material guiding passageway intercommunication same and coaxial line set up, and the inside of extruding machine head body still opens the injection passageway to corresponding through hole, and the injection passageway is located the outside of mounting ring, and the injection passageway includes total branch and a plurality of branch sections connected with total branch through connecting passageway, and branch section and corresponding through hole intercommunication same and coaxial line set up, and the one end of total branch extends out extruding machine head body and forms injection port.

The application discloses a double-head double-motion spring for a semiconductor test probe and a processing method thereof, and relates to the technical field of semiconductor testing.The first effective part and the second effective part are provided with the integrated coaxial line structure but different middle diameters, and the spring is fixed in the middle part of the probe shell by the fixed clamping groove, so that the single spring provides differentiated elastic force for two independent motion probes.The effective part with the smaller middle diameter has greater rigidity, can exert greater test pressure on the driven probe, and avoids the problems of excessive contact resistance and signal distortion, and the other end can generate smaller test pressure to prevent the problem of physical damage.

This invention discloses an integrated coaxial multi-layered annular emitter self-powered detector, comprising a probe, a connecting sleeve, and a transmission cable. The probe includes a collector, an insulating layer, and an emitter arranged coaxially from the outside in. The insulating layer includes a side insulating layer, a bottom insulating layer, a top insulating layer, and insulators. Multiple insulators and emitters are present, and the emitters and insulators are alternately stacked coaxially to form a sandwich structure. The transmission cable includes a cable shell and cable cores, with an insulating layer filling the space between the cable shell and the cable cores. There are multiple cable cores, each connected to a corresponding emitter. The connecting sleeve is an annular structure with different diameters at both ends; the larger end is welded to the open end of the collector, and the smaller end is welded to the cable shell. This invention enables the measurement of neutron flux distribution and neutron energy spectrum under the confined space of a reactor core.

Power amplifiers including balanced coaxial baluns are described. One example includes first and second amplifiers coupled to a balanced pair of first and second microstrip lines on a circuit board. A balun is coupled between the microstrip lines at a balanced end and between a conductive trace and a ground plane of the circuit board at an unbalanced end of the balun. The balun includes a coaxial balun line and a surface mount balancing inductor. The coaxial line includes center and shield conductors. A first end of the center conductor is coupled to the first microstrip line and a first end of the shield conductor is coupled to the second microstrip line at the balanced end of the balun. The balancing inductor is coupled between the first microstrip line and the ground plane to maintain symmetry for the balanced pair of microstrip lines.

The utility model discloses a multifunctional adhesive tape winding device, it includes the shell, installs heat seal tube in the shell, is provided with heating area in the heat seal tube, one side of heat seal tube is provided with first cable access; one side of heat seal tube installs the clamping device for clamping cable, one side of clamping device rotatory installation adhesive tape support ware, the adhesive tape support ware includes adhesive tape placement cylinder and connecting seat, the adhesive tape placement cylinder fixed connection one side at connecting seat, connecting seat, clamping device with coaxial line arrangement of heating area to set up and be provided with with first cable access through second cable access on connecting seat and clamping device, and connecting seat is connected with motor through transmission mechanism. The utility model can complete cable connection vulcanization operation, effectively reduces manpower and time input, improves work efficiency.

The application discloses a large field of view imaging microscopic device for free-moving animals, which comprises an objective lens assembly, a barrel lens assembly and an image sensor arranged coaxially in sequence, and a coaxial cable electrically connected with the image sensor. The objective lens assembly adopts a spherical lens for adjusting the chief ray angle and improving the illumination distribution of an image surface. The barrel lens assembly adopts an aspherical lens for comprehensively correcting the field curvature, astigmatism, coma and distortion and other aberrations in the large field of view imaging through the aspherical surface type. The coaxial cable is used for realizing stable transmission of power supply and image data and suppressing electromagnetic interference. The device is compact in structure and easy to assemble and adjust, and is suitable for behavior and neuroscientific imaging experiments of free-moving animals such as rodents, and can obtain clear large field of view imaging under free-moving conditions.

The utility model discloses a kind of power transmission line monitoring devices suitable for severe weather, comprising: mounting bracket, solar panel assembled in the top of mounting bracket by mounting unit and camera assembled in the bottom of mounting bracket, mounting bracket includes vertical first installation pipe, the mounting unit includes the mounting frame fixedly connected with solar panel, the mounting sleeve that can be set in the top of first installation pipe with mounting frame fixedly connected and clamp mechanism assembled on the lower end of mounting sleeve and can hold first installation pipe, the top end outer wall of first installation pipe is coaxially recessed with annular groove, at least one limiting bolt passing through annular groove is assembled on the mounting sleeve, by annular groove and limiting bolt cooperation, it can prevent mounting sleeve from falling, to adapt to strong wind environment, also convenient to adjust the direction of solar panel, the clamping force provided by clamp mechanism is greater than the clamping force of commonly used bolt lock, further mentioned wind resistance.

The utility model discloses a kind of detection equipment of industrial electron irradiation accelerator beam parameter, including irradiation box, scanning magnet and target, the scanning magnet is arranged in the beam entrance of the irradiation box;The target includes support and target material placed in the hollow position of support, the support is arranged at the beam outlet of the irradiation box, the target material is located in the middle of the support, ensure that the target material and beam coaxial line.The utility model simplifies the operation of detecting the beam parameter of industrial electron irradiation accelerator, and can carry out the detection of beam energy dispersion, effectively speed up the debugging progress of accelerator.

This invention relates to the field of wireless communication technology, specifically to a broadband balanced antenna feeding method based on a common-mode inductor. This method addresses the shortcomings of traditional balanced antenna feeding technologies, such as insufficient broadband adaptability and poor common-mode interference suppression. It employs a common-mode inductor to convert the single-ended RF signal of the coaxial cable into a differential balanced signal. The method sequentially performs calculations of the single-ended signal input value, measurement of the differential signal amplitude and phase difference, antenna feeding matching degree calculation, detection of coaxial cable outer wall current, and isolation rate calculation. Then, it integrates core parameters to generate feeding parameter calibration coefficients, adjusting the feeding signal output to obtain a stable broadband feeding value. This broadband balanced antenna feeding method based on a common-mode inductor can stably achieve single-ended to differential signal conversion over a wide frequency band, calibrate signal imbalance in real time, effectively suppress outer wall common-mode current interference, improve antenna feeding matching degree, and is suitable for broadband wireless communication, RF detection, and other system applications.

This utility model relates to the field of cable technology, and in particular to a bending limiting structure based on ultra-flexible, low-loss, high-temperature coaxial cable. It includes an ultra-flexible, low-loss, high-temperature coaxial cable body, a bending mechanism sleeved on the outside of the cable body, and a protective mechanism installed on the outside of the bending mechanism. The bending mechanism includes a central cylinder, with protective sleeves fixed at both ends of the central cylinder. Bending fins and a first inclined groove are formed on the outside of the protective sleeves. The protective mechanism includes a rubber sleeve, with linearly arranged pinholes on the outside of the rubber sleeve. A V-shaped groove is formed at the end of the rubber sleeve away from the central cylinder, and a weakening groove is formed on the inside of the rubber sleeve. In this utility model, the bending mechanism assists in bending the cable and reduces cuts, while the protective mechanism first buffers and then actively breaks to release the tension during pulling. The two work together to prevent cable breakage, achieving effective protection for the ultra-flexible cable during bending and stress.

The utility model relates to a kind of ground wave digital television signal receiving antenna technology.The utility model discloses a kind of logarithmic formula television receiving antenna feed matching port, including the coaxial cable and PCB single panel connected with logarithmic formula television receiving antenna feed end, PCB single panel includes the copper foil layer being set in upper portion and the PCB resin layer being set in lower portion, coaxial cable one end is equipped with net knitting, the other end is bare core wire, net knitting and core wire are respectively connected with PCB resin layer.PCB resin layer one end is connected in the net knitting of coaxial cable, the other end is pressed in coaxial cable core wire 2 connecting end, the copper foil layer of PCB single panel and core wire connecting end are isolated by PCB resin layer and form distributed capacitor, this distributed capacitor compensates the impedance mismatch caused by the tiny inductance of coaxial cable core wire lead line cross connection;Realize a kind of logarithmic formula television receiving antenna feed matching port;So as to realize the beneficial effect of improving the transmission efficiency of antenna.

The utility model discloses an easy maintenance commutator, including base and commutator sheet. Commutator sheet one side is equipped with two connecting sheets, and connecting sheet and commutator sheet are integrally formed, and the lower end of base is equipped with the fixed groove of size adaptation with connecting sheet, and connecting sheet and fixed groove are interference fit, and base is equipped with connecting screw hole, and is equipped with the compression member through screw thread connection, and the compression member is used for compressing connecting sheet, and the end face of compression member is equipped with the dismounting groove, and the lateral surface is equipped with the clamping force groove. Multiple commutator sheets are arranged in the outer ring of base in the form of circumferential array, and a sealing ring is arranged between the compression member and the connecting sheet, and the compression member and the base are respectively provided with through holes and coaxially arranged, and an insulation gap is arranged between adjacent commutator sheets. The commutator is stable in connection, easy to maintain, good in protection performance, and effectively improves the service performance and the life of the equipment.

The embodiment of the present application discloses an antenna and a broadband matching network, the broadband matching network comprises: a passive impedance matching circuit and a non-Foster impedance matching circuit. The passive impedance matching circuit has a first port and a second port; the second port is connected with a coaxial port. The non-Foster impedance matching circuit has an input end and an output end; the input end is connected with the first port, and the output end is connected with a feed end of the antenna. The passive impedance matching circuit comprises at least one capacitor and at least one inductor which are connected with each other; and the non-Foster impedance matching circuit comprises at least one transistor and at least one capacitor, inductor or resistor which are connected with each other. The antenna of the embodiment of the present application realizes impedance matching between a coaxial cable and the feed end of the antenna by using the broadband matching network, realizes the broadband design of the antenna, and provides convenience for the miniaturization of the antenna.

This invention discloses a three-dimensional micro-coaxial structure coupling filter for millimeter-wave communication, comprising a metal grounded shell, a signal transmission axis, a signal transmission line support structure, and a three-dimensional micro-coaxial line to coplanar waveguide adapter. The signal transmission axis is suspended within an air cavity inside the metal grounded shell via the signal transmission line support structure. The signal transmission axis includes multiple metal transmission lines arranged in two staggered columns, all with the same transmission direction and adjacent metal transmission lines coupled to each other. This invention employs a coupling line approach, where the radio frequency signal transmission lines are suspended and staggered within the metal shell. By controlling the length of the coupling lines and the coupling spacing, the electromagnetic characteristics of the filter can be adjusted, effectively achieving high-frequency, low-loss transmission characteristics. Furthermore, by using 3D printing technology combined with electroplating technology as processing methods, the processing cost is significantly reduced while ensuring high electromagnetic performance.

A full polarization programmable antenna unit comprises a digital amplitude and phase programmable matching network module and a horn type radiation antenna module; the digital amplitude and phase programmable matching network module comprises a T-type power divider, a 90-degree directional coupler, an FPGA control module and two 360-degree digital phase shifters; the amplitude adjustable through power divider, 360-degree phase shifter and 90-degree directional coupler are cascaded with each other, and programmable regulation and control are realized by the FPGA control module. The amplitude and phase modulation of two polarization components of the antenna unit can be realized through the digital amplitude and phase programmable matching network module. Specifically, the programmable matching network module for feeding is connected with the antenna radiator through a radio frequency coaxial line, which greatly improves the full polarization programmable capability. In a complex and changeable electromagnetic environment, polarization loss can be reduced and polarization interference capability can be improved through variable polarization, and the full polarization programmable antenna unit can also be applied to polarization imaging and other application scenarios in combination with related algorithms for polarization information recognition.

The utility model relates to duplex gear pair tooth frock technical field, specifically disclose a duplex gear pair tooth frock, including upper clamp, with the lower clamp of upper clamp integral moulding, the first alignment hole and the second alignment hole of the first alignment hole and the second alignment hole of circumferential even distribution opening in the lower clamp on the upper clamp, the upper clamp and the lower clamp integral moulding form the passageway, the first alignment hole with the second alignment hole coaxial line, still include the first mark and the second mark of delineation on the upper end tooth and the lower end tooth, the second mark is used with the second alignment hole correspondingly, and the device solves the problem that the conventional duplex gear processing aligns the artificial alignment and lacks the auxiliary alignment frock.

The application discloses a large-diameter pipe impact deformation connecting device and a connecting method, relates to the field of plastic processing of metal pipes, and belongs to the technical field of metal pipe connecting devices. The connecting device comprises a profiling flat coil, a pipe base and a pipe supporting block. The profiling flat coil is assembled on a coil back plate, and the coil back plate and the pipe supporting block are slidably arranged on a base plate. The pipe base is installed on a rotatable lifting platform, and the pipe to be connected is coaxially arranged on the pipe base. An arc surface section is arranged on the profiling flat coil and is inwardly recessed, and the arc surface section is coaxially arranged with the pipe to be connected by impact deformation. The profiling flat coil is connected with a charging and discharging unit. The profiling flat coil is used to replace a solenoid coil to perform magnetic pulse connection of large-size pipes, so that the decrease of Lorentz force caused by excessively large size is avoided. The arc surface section of the profiling flat coil is more suitable for the magnetic pulse connection process of the pipe. Through dispersing the overall hoop deformation of the pipe to several local deformations, the size application range of the magnetic pulse connection technology can be greatly improved.

The application discloses a piezoelectric APU stop device and relates to the technical field of aircraft power devices.The device comprises a shell, which is sequentially provided with a piezoelectric module, an actuating block, a pressing disc, a moving disc and a pressure receiving disc from the bottom; the piezoelectric module is provided with lead wires of positive and negative electrodes, which are led out from corresponding holes; the actuating block is arranged on the end face of the piezoelectric module; the pressure receiving disc is fixed on the shell; coaxial pivots are arranged at the central positions of the end faces of the moving disc; one pivot penetrates the center of the pressing disc, and the other pivot penetrates the center of the pressure receiving disc and extends to the outside of the pressure receiving disc.The piezoelectric stop device utilizes the inverse piezoelectric effect of piezoelectric materials; after the piezoelectric module is electrified, deformation displacement and thrust are generated, braking torque is generated by pressing the brake disc, and the APU main shaft is stopped from rotating.

This invention discloses a microwave non-destructive testing device for grain moisture content. The device includes a shell, metamaterial lens antennas, a grain container, a 4.3-inch capacitive touchscreen, a coaxial cable, a near-infrared temperature probe, a microwave absorbing material plate, and a main control circuit board. The main control circuit board includes a main control chip, a 24GHz microwave transmitting circuit, and a 24GHz microwave receiving circuit. The main control circuit board is connected to symmetrical metamaterial lens antennas on both sides of the device via the coaxial cable. The device measures the change in scattering parameters between the two antennas using microwave signals, calculates the complex permittivity of the grain moisture content based on this change, and then uses a density-independent algorithm and a temperature calibration algorithm to invert the grain moisture content. The measurement results are displayed on the capacitive touchscreen. A microwave absorbing material plate is attached to the inner surface of the shell to reduce microwave reflection interference; a near-infrared temperature probe is used to quickly detect the grain temperature, reducing measurement errors caused by temperature.

The utility model discloses a kind of solve the mechanism of the unstability of conveying caused by chain conveying polygon effect, including conveying chain in baking equipment;It also includes toothed sprocket and toothless sprocket, conveying chain is arranged on the outside of toothed sprocket and toothless sprocket, toothed sprocket is engaged with conveying chain;Toothless sprocket is arranged in at least one end of conveying chain conveying section;Toothless sprocket side is equipped with auxiliary support wheel with its coaxial line arrangement and common rotation, auxiliary support wheel is located in the side of conveying chain, the top of wheel surface of auxiliary support wheel and the top surface of conveying chain conveying section are located on the same plane.The utility model provides the mechanism of the unstability of conveying caused by chain conveying polygon effect, can greatly reduce the shaking in product conveying process, ensure the bonding quality of glue to product.