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2348 results about "Coaxial cable" patented technology

Coaxial cable, or coax (pronounced /ˈkoʊ.æks/) is a type of electrical cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield. Many coaxial cables also have an insulating outer sheath or jacket. The term coaxial comes from the inner conductor and the outer shield sharing a geometric axis. Coaxial cable was invented by English physicist, engineer, and mathematician Oliver Heaviside, who patented the design in 1880.

Leaky coaxial resonant sensor systems and methods

A disclosed leaky coaxial resonant sensor system and methods. In use, the system includes at least one split-ring resonator (SRR) embedded within a material of the component. The at least one SRR is formed from a composite material. Additionally, the at least one SRR is configured to resonate at a first frequency in response to an interrogation signal from a leaky coaxial cable antenna. In some aspects, each SRR may resonate at a first frequency in response to an electromagnetic ping when the composite material is in a first state, and may resonate at a second frequency in response to the electromagnetic ping when the composite material is in a second state. A resonant frequency of the composite material may be based on physical characteristics of the composite material.
Owner:LYTEN INC

Superconducting coaxial cable and preparation method thereof

The invention relates to the technical field of coaxial cables, in particular to a superconducting coaxial cable and a preparation method thereof, and the superconducting coaxial cable is composed of an inner conductor, an insulating layer, a shielding layer and a protective layer from inside to outside; the inner conductor is made of a plurality of wires and is used for transmitting signals; the insulating layer coats the periphery of the inner conductor, is used for isolating current and reducing heat conduction, and is made of a flexible material; the shielding layer longitudinally wraps the periphery of the insulating layer and is used for shielding internal and external signal interference, and the thickness of the shielding layer is determined by the diameter of the inner conductor, the thickness of the insulating layer and the standard bending radius; the protection layer wraps the periphery of the shielding layer and is used for protecting the shielding layer, and the protection layer is made of a flexible material. According to the invention, signal transmission in an ultralow-temperature superconducting state can be realized, and the heat conduction efficiency can be reduced.
Owner:嘉兴翼波电子有限公司

Broadband impedance spectroscopy cable fault positioning method based on end function compensation

The invention discloses a broadband impedance spectroscopy cable fault positioning method based on end function compensation, and the method comprises the steps: determining a voltage and current partial differential equation set of a healthy coaxial cable according to an infinitesimal equivalent model of the healthy coaxial cable, and calculating a general solution of the voltage and current partial differential equation set; calculating a reflection coefficient of a load end of the healthy coaxial cable according to the general solution, and calculating an impedance spectrum of the healthy coaxial cable about frequency according to the reflection coefficient and the general solution; measuring the impedance spectrum of the tested cable about the frequency, and comparing the impedance spectrum with the impedance spectrum of the healthy coaxial cable to determine whether the tested cable has a fault or not; constructing an orthogonal integral function according to the phase spectrum, introducing Gaussian filtering to eliminate local interference caused by a large fault, and extracting an extreme value and an extreme value of the function to form a compensation function; a fault diagnosis function based on the impedance phase spectrum is established, the local fault position and the local soft fault type of the detected cable are determined, accurate positioning of different fault positions is achieved, and meanwhile the detection and positioning precision is greatly improved compared with a traditional method.
Owner:CHINA UNIV OF MINING & TECH

Wrapping method and system for manufacturing radio frequency coaxial cable

The invention relates to the technical field of radio frequency coaxial cable manufacturing, in particular to a wrapping method and system for manufacturing a radio frequency coaxial cable, and the method comprises the steps: controlling a take-up frame to pull a to-be-wrapped body made of an inner conductor and an insulating layer to an initial wrapping position at a constant speed; starting wrapping equipment to be matched with the take-up frame to wind a metal belt in the wrapping equipment onto the to-be-wrapped body according to a preset wrapping angle from the initial wrapping position so as to carry out wrapping test on the to-be-wrapped body; collecting the diameter of the to-be-wrapped body wound with the metal belt in the wrapping test; determining the surface wrapping state of the to-be-wrapped body according to the diameter; and determining a wrapping processing mode based on the surface wrapping state, and performing actual wrapping on the to-be-wrapped body according to the wrapping processing mode to form an outer conductor layer. According to the invention, signals are prevented from leaking between the metal tape and the to-be-lapped body, and the signal transmission efficiency is improved.
Owner:嘉兴翼波电子有限公司

Radio frequency electromagnetic energy explosion testing device and method

The invention discloses a radio frequency electromagnetic energy explosion testing device and method. The device comprises a closed gas cavity, a testing cable, a linear driving mechanism and a processing circuit. The airtight gas cavity is filled with explosive gas. The test cable comprises an inner conductor and an outer conductor, the outer conductor is coaxially arranged around the inner conductor, the inner conductor comprises a first inner conductor and a second inner conductor which are oppositely arranged in the axial direction, the end, away from the second inner conductor, of the first inner conductor is configured to receive radio frequency electromagnetic energy, and the power of the radio frequency electromagnetic energy tends to be increased. And the linear driving mechanism is connected with one end, far away from the first inner conductor, of the second inner conductor, and is configured to drive the second inner conductor to periodically reciprocate along the axial direction, so that the second inner conductor and the first inner conductor are periodically disconnected or connected. And the processing circuit is configured to take the power of the radio frequency electromagnetic energy corresponding to gas explosion as a power safety threshold. According to the invention, data support can be provided for safe operation of the coaxial cable in practical application.
Owner:YULIN SHENHUA ENERGY CO LTD +1

Anti-interference method and device for high-frequency coaxial cable

The invention relates to the technical field of cable anti-interference, and discloses a high-frequency coaxial cable anti-interference method and device.The method comprises the steps that a radial progressive impedance gradient double-layer shielding structure with an inner shielding layer and an outer shielding layer is constructed, and a triangular supporting frame structure is arranged between the inner shielding layer and the outer shielding layer; an electromagnetic induction probe is installed on the triangular supporting frame structure, and differential interference signals between the inner shielding layer and the outer shielding layer are collected; performing time-frequency domain conjoint analysis on the differential interference signal to obtain an interference source feature mapping map; and performing multi-mode interference identification and suppression according to the interference source characteristic mapping map to generate an interference offset signal, and performing real-time elimination and feedback on electromagnetic interference in the inner shielding layer and the outer shielding layer based on the interference offset signal to obtain an interference offset feedback effect. And signal reflection and crosstalk among the structures of all layers in the cable are effectively compensated.
Owner:SHENZHEN HILUM TECH CO LTD

Radio frequency chip high-frequency performance test technology and clamp thereof

The invention provides a radio frequency chip high-frequency performance test process and a clamp. The radio frequency chip high-frequency performance test process comprises the following steps: S1, welding a crimping shaft sleeve to one end of a radio frequency cable; by adopting the scheme of combining the coaxial cable and the PCB, the PCB part can be used for digital signal transmission and product power supply, and the coaxial cable is used for radio frequency signal transmission, so that the microwave interference caused by the use of a PCB microstrip line and the signal influence caused by 90-degree switching between the conductive part and a PCB plane microstrip can be reduced, the high-frequency test requirement of a radio frequency chip is met, and the test efficiency is improved. Through the crimping mode, the problems of long welding time, high operation requirements, unmaintainability and the like in the welding process are solved, the situation that after a radio frequency cable is heated for a long time, the high-frequency test index of the clamp is affected is avoided, the independently designed elastic conductive film serves as a transmission elastic carrier of the clamp, the influence of the conductive film on the radio frequency index is reduced to the minimum, and the reliability of the clamp is improved. The fixture is suitable for double-sided chip layout, and the top of the fixture is also provided with a test assembly, so that double-sided radio frequency chip test can be realized.
Owner:CHENGDU HUAYI TECH CO LTD

Method for improving fusion plasma ion cyclotron heating efficiency

The invention discloses a method for improving fusion plasma ion cyclotron heating efficiency, and belongs to the technical field of magnetic confinement fusion. The method comprises coupling use of an ion cyclotron antenna and a helical wave antenna, the ion cyclotron antenna is installed in a Tokamak vacuum chamber, is connected with an external radio frequency power supply through a coaxial line, and is used for exciting an ion cyclotron frequency band electromagnetic wave to heat plasma; and the helical wave antenna is arranged at a Tokamak window adjacent to the ion cyclotron antenna, is connected with a radio frequency power supply through a coaxial line or a rectangular waveguide, and is used for exciting a helical wave to increase the plasma density of a scraping layer and improve the accessibility of the ion cyclotron wave. The plasma is excited through the spiral wave antenna, so that the density of the scraping layer is improved, the coupling efficiency of the ion cyclotron wave and the plasma is improved, and technical support is provided for application of ion cyclotron heating in future high-parameter Tokamak.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES +1

Linkage differential measurement system and method suitable for micro thrust calibration

The invention discloses a linkage differential measurement system and method suitable for micro thrust calibration. The system comprises a linkage differential measurement rack, a liquid metal radio frequency coaxial cable connector arranged on the rack, and a mass center precise regulation and control device arranged on the rack. The linkage differential measurement system provides micro-Newton-level micro thrust except environment common-mode noise; the method comprises the following steps: a torsional pendulum inclination angle control module controls a torsional pendulum inclination angle # imgabs0 #; the centroid position deviation calculation module is used for calculating centroid position deviation; judging whether the offset s of the current centroid position is less than 10 [mu] m or not; the mass center position adjusting module is used for adjusting the mass center position; the gravitational wave micro-thrust calibration torsional pendulum solves the problems that the gravitational wave thruster needs to calibrate thrust noise besides calibrating thrust, high rigidity of a coaxial cable can generate interference on motion of the gravitational wave micro-thrust calibration torsional pendulum, and the gravitational wave micro-thrust calibration torsional pendulum has extremely high requirements on sensing precision of mass center regulation and control.
Owner:INST OF MECHANICS CHINESE ACAD OF SCI

Wire buckling equipment for mobile phone line installation

The invention discloses a line buckling device for mobile phone line installation, and relates to the technical field of mobile phone assembly equipment, and the line buckling device comprises a support main body, and a feeding mechanism, a coaxial line carrying mechanism, a mobile phone shell conveying mechanism, a coaxial line adjusting mechanism, a coaxial line buckling mechanism and a transfer mechanism which are arranged on the support main body, the mobile phone shell with the wire clamping groove is stopped after being conveyed forwards to a corresponding position by the mobile phone shell conveying mechanism; meanwhile, the material clamping jaw clamps the coaxial line in the material hopper and puts the coaxial line into the belt conveying mechanism, then the coaxial line carrying clamping jaw clamps the coaxial line on the belt conveying mechanism and sends the coaxial line into the coaxial line adjusting mechanism, and then the coaxial line buckling mechanism clamps the two ends of the adjusted coaxial line and installs the coaxial line in a mobile phone shell with a line clamping groove. And finally, the mobile phone shell provided with the coaxial line is transferred to the next machining step through the transferring mechanism. Compared with the mode that the two ends of the coaxial line are manually buckled into the line clamping grooves in the mobile phone shell, the working efficiency can be improved.
Owner:CHENGDU PUNOS ELECTRONIC TECH CO LTD

Bending-resistant radio frequency coaxial cable

The utility model discloses a bending-resistant radio frequency coaxial cable, which comprises an inner conductor, an insulating layer, a shielding layer and a sheath layer which are sequentially arranged from inside to outside, the inner conductor is formed by concentrically twisting a plurality of strands of silver-plated copper wire monofilaments; the insulating layer comprises an inner insulating layer and a polytetrafluoroethylene film outer insulating layer; the inner insulating layer is wrapped outside the inner conductor and is formed by sintering a polytetrafluoroethylene tape; the polytetrafluoroethylene film outer insulating layer is wrapped outside the inner insulating layer; the shielding layer comprises an inner shielding layer, a middle layer and an outer shielding layer, and the inner shielding layer is a silver-plated copper strip wrapping layer and wraps the insulating layer; the middle layer is a polyimide aluminum foil composite belt wrapping the inner shielding layer; the outer shielding layer is a silver-plated aramid yarn woven layer and is woven outside the middle layer; the sheath layer is a polytetrafluoroethylene sheath layer. The cable provided by the utility model has the characteristics of high-frequency bending resistance and good environment resistance, and also has excellent electrical transmission performance.
Owner:SICHUAN JIUZHOU WIRE & CABLE

Low-loss leaky coaxial cable and manufacturing method thereof

The invention belongs to the field of wireless communication, and particularly relates to a low-loss leaky coaxial cable and a manufacturing method thereof. The leaky coaxial cable comprises an inner conductor, a composite insulating layer, an outer conductor and a sheath layer which are coaxially arranged in sequence, and each layer forms a concentric cylindrical structure by taking an axis as a center. The outer surface of the inner conductor and the outer surface of the outer conductor of the leaky coaxial cable are respectively roughened, so that the contact between the inner conductor and the insulating layer and the contact between the outer conductor and the sheath layer are improved, meanwhile, a solid inner skin layer originally used for bonding the inner conductor and the insulating layer is omitted, the signal transmission performance is improved, and the service life of the leaky coaxial cable is prolonged. And the transmission loss is reduced. Compared with an existing product, the leaky coaxial cable with the surfaces of the inner conductor and the outer conductor, provided by the invention, has the advantages that the attenuation index is integrally optimized by 2.6%-5.8% under multiple frequency bands of 900 MHz to 2700 MHz on the premise of meeting the test requirements of adhesive force, standing wave and insulating dielectric strength between the insulating layer and the inner conductor.
Owner:YANGTZE OPTICAL FIBRE & CABLE CO LTD +1

Preparation method and application of flexible superconducting coaxial cable outer conductor

The invention belongs to the technical field of cable processing, and relates to a preparation method and application of a flexible superconducting coaxial cable outer conductor. The preparation method comprises the following steps: mixing Nb powder and Ti powder by adopting a vibrating ball mill to prepare NbTi composite powder; a substrate of laser powder bed melting equipment is preheated, the NbTi composite powder is spread on the substrate of the laser powder bed melting equipment, a melting powder layer is scanned through the laser powder bed melting technology, a three-dimensional communicated grid structure is formed through interlayer staggered scanning, finally, the NbTi net-shaped alloy pipe is placed in a strong acid solution to be soaked for a short time, redundant metal powder is removed, and the NbTi net-shaped alloy pipe is obtained. And finally, the preparation of the flexible superconducting coaxial cable outer conductor for the quantum computer is realized.
Owner:XIAN SUPERCONDUCTING WIRE TECHNOLOGIES CO LTD

Self-repairing radio frequency coaxial cable, leaky coaxial cable and manufacturing method thereof

The invention belongs to the technical field of wireless communication, and particularly relates to a self-repairing radio frequency coaxial cable, a leaky coaxial cable and a manufacturing method thereof. On the basis of meeting the standard of the communication cable, the technical problems of electrical performance deterioration, reliability reduction and service life reduction caused by micro damage of the foaming insulating layer in the use process of the cable are further solved. Tests show that the self-repairing technology provided by the invention is suitable for a mobile communication radio frequency coaxial cable and a leaky coaxial cable (the frequency range is 0.1 GHz-6 GHz). According to the HLRCTYZ-50-22 leaky coaxial cable in the YD / T2491 standard and the HCTAYZ-50-22 radio frequency coaxial cable in the YD / T1092 standard, when the voltage standing wave ratio is smaller than or equal to 1.20 and the characteristic impedance meets 50 + / -2 ohms, the MTBF (average fault-free time) of the leaky coaxial cable and the HCTAYZ-50-22 radio frequency coaxial cable can be improved by 20%-40% compared with that before improvement.
Owner:YANGTZE OPTICAL FIBRE & CABLE CO LTD +1

Low-loss high-power radio frequency coaxial cable and leaky coaxial cable

The invention belongs to the technical field of wireless communication, and more particularly relates to a low-loss high-power radio frequency coaxial cable and leaky coaxial cable, the radio frequency coaxial cable comprises an inner conductor, an insulating layer, an outer conductor layer and an outer sheath layer from inside to outside, and by optimizing the structures of the insulating layer and the conductor, the overall thermal resistivity of the cable is improved, and the overall performance of the cable is improved. And the attenuation performance of the cable and the heat resistance in a high-power application scene are improved. Compared with a high-power cable with a conventional structure, the attenuation test value of the radio-frequency coaxial cable under the specification of 3 / 8 inches is optimized by about 15% compared with the requirement on the premise of meeting the 125 DEG C temperature resistance grade; on the premise of meeting the 105 DEG C temperature resistance grade, the attenuation test value of the leaky coaxial cable under the 1 / 2 inch specification is optimized by about 17% compared with the standard requirement.
Owner:YANGTZE OPTICAL FIBRE & CABLE CO LTD +1

Anti-interference ultra-wideband radiation unit and anti-interference ultra-wideband antenna

The invention discloses an anti-interference ultra-wideband radiation unit and an anti-interference ultra-wideband antenna, and the radiation unit comprises a light guide sheet which is located above a radiation surface and is used for expanding the bandwidth; the radiating surface consists of four folded dipole radiating arms and is printed on a first substrate of which the dielectric constant is 4.4, the loss tangent is 0.005 and the thickness is 0.762 mm, and every two folded dipole radiating arms are connected together through a high-impedance lead; the balun comprises an inductance circuit and a capacitance circuit on the front surface and the back surface, the inductance circuit is arranged in a bending manner and is electrically conducted through a metalized via hole, the capacitance circuit performs energy coupling through a gap of the substrate thickness to form a gap capacitor, and the balun is connected with each folded dipole radiation arm and is used for providing broadband impedance matching; and the base is connected with the balun and is used for converting the feed type, so that the coaxial cable is welded in parallel to the base, the electromagnetic interference between different frequency bands can be effectively reduced, and the gain can be improved.
Owner:GUANGDONG SHENGLU TELECOMM +2

Electrical connector

A coaxial connector device includes: a signal contact member; a signal contact member; a ground contact member to which a ground potential is applied; and a conductive member including a rear ground connection portion that is connected to the ground contact member, and a front ground connection portion that is connected to a ground contact portion of a mating connector device. When viewed in a direction of fitting to the mating connector device, the front ground connection portion overlaps at least a part of a signal line including a center conductor of a coaxial cable and the signal contact member, and at least a part of a signal line including a center conductor of a coaxial cable and the signal contact member.
Owner:I PEX INC

Segmented slot design method and system of leaky coaxial cable and storage medium

The invention discloses a segmented slot design method and system of a leaky coaxial cable and a storage medium. The method comprises the following steps: constructing a performance fitting formula of the leaky coaxial cable according to segmented slot state parameters; and calculating the coupling loss of each slotted hole segmented structure on the leaky coaxial cable according to a performance fitting formula and a system loss threshold. And calculating corresponding segmented slot state parameters and transmission attenuation according to the coupling loss of each slot segmented structure. And calculating an expected size parameter of the leaky coaxial cable according to the segmented slotted hole state parameter and the transmission attenuation of each slotted hole segmented structure. According to the leaky coaxial cable, the maximum value and the minimum value of the system loss are limited in a relatively small expected value, so that the system loss curve tends to be in a uniform and horizontal state, and the system loss of the leaky coaxial cable reaches a relatively good state.
Owner:CHINA TOWER CO LTD

Coaxial cable

The invention provides a coaxial cable which comprises an inner conductor, an insulating layer, an outer conductor, a protective layer, a shielding layer and a sheath which are sequentially and coaxially arranged from inside to outside, the insulating layer wraps the outer surface of the inner conductor, the outer conductor wraps the outer surface of the insulating layer, the protective layer wraps the outer surface of the outer conductor, and the shielding layer wraps the outer surface of the outer conductor. The shielding layer wraps the outer surface of the protection layer, the sheath wraps the outer surface of the shielding layer, compared with the prior art, the protection layer is additionally arranged between the outer conductor and the shielding layer, friction between the shielding layer and the outer conductor can be avoided when the coaxial cable is bent, and the coaxial cable can be prevented from being damaged. In other words, friction protection is carried out on the shielding layer through the protection layer, so that the situation that the shielding performance is reduced due to the fact that surface metal of the shielding layer falls off due to friction between the shielding layer and the outer conductor is reduced or even avoided, and the service life of the coaxial cable is prolonged.
Owner:KINGSIGNAL TECHNOLOGY CO LTD

Temperature-controlled automatically-unfolded shape memory alloy helical antenna and control method

The invention provides a temperature-controlled shape memory alloy helical antenna capable of automatically unfolding and a control method, and belongs to the technical field of antennae, and the antenna comprises a helical radiation unit which is made of a shape memory alloy material and is of a multi-circle helical winding structure; the edge of the metal reflection unit is warped upwards to form an annular reflection cavity, and the metal reflection unit is used for enhancing the directivity and radiation gain of the spiral radiation unit; the supporting rod is of a multi-section coaxial nested structure, is vertically mounted in the center of the metal reflection unit and is used for providing stable axial support in the contraction and expansion process of the spiral radiation unit; the dielectric disc is mounted between the supporting rod and the spiral radiation unit; the metal via hole structure penetrates through the dielectric disc and is used for connecting a coaxial cable and the radiation structure to form a complete feed path; and the impedance matching arm structure is used for connecting the feed path and the spiral radiation unit and adjusting the impedance matching relation between the feed path and the spiral radiation unit so as to realize impedance continuity and radio frequency matching.
Owner:SHANDONG UNIV

Integrated rapid correction device for formation and capacity grading equipment

An integrated rapid correction device for formation and capacity grading equipment comprises an upper computer which is connected with a switch through the Ethernet. The switch is in signal connection with a to-be-calibrated device and a plurality of independent working devices; the calibration unit is connected with the equipment to be calibrated through a voltage and current line and a wireless signal to achieve an equipment calibration effect; the calibration unit comprises a calibration main processor, an FPGA (Field Programmable Gate Array) coprocessor, a signal relay plate, a universal meter and a voltage and current connecting plate, and works through an external power supply; the test port of the universal meter is electrically connected with the calibration port of the to-be-calibrated device. The calibration main processor comprises a precision calibration circuit for adjusting measurement and output precision, a line sequence calibration circuit for ensuring signal synchronism and time sequence, and a coaxiality calibration circuit for ensuring coaxial cable signal accuracy; according to the utility model, the precision calibration circuit and the coaxiality calibration circuit are greatly improved on the basis of the utility model with the publication number of 115166614A, and the sensitivity of detecting the contact state of the probe, the accuracy of precision calibration and the energy utilization efficiency are improved.
Owner:ZHEJIANG HANGKE TECH

Low-loss radio frequency coaxial cable and manufacturing method thereof

The invention belongs to the field of wireless communication, and particularly relates to a low-loss radio frequency coaxial cable and a manufacturing method thereof. The inner conductor of the radio frequency coaxial cable is subjected to surface treatment, so that the adhesive force between the inner conductor and the insulating layer is improved, the transmission loss is reduced, and the signal transmission performance is improved. After the surface of the inner conductor is subjected to proper process treatment, the contact performance can be improved, and signal reflection and loss increase can be avoided. On the premise of meeting the test requirements of insulation adhesive force, standing wave and insulation voltage resistance, the surface of the inner conductor of the radio-frequency coaxial cable is moderately processed, so that the attenuation index of the radio-frequency coaxial cable is integrally optimized by 3.3%-6.0% under the frequency bands of 900MHz, 1800MHz, 2700MHz and the like compared with that of an existing product.
Owner:YANGTZE OPTICAL FIBRE & CABLE CO LTD +1

Signal switching device and test system

The embodiment of the invention discloses a signal switching device and a test system. The signal switching device comprises a coaxial cable input port, a decoupling filter circuit and a media signal output port. The input end of the decoupling filter circuit is connected with the coaxial cable input port, and the alternating current output end of the decoupling filter circuit is connected with the media signal output port; the decoupling filter circuit is used for decoupling the received coupling signal to generate an alternating current component and a direct current component, the alternating current component is a media signal, and the direct current component is a power component; and the media signal output port is used for outputting the alternating current component decoupled by the decoupling filter circuit. According to the device provided by the invention, the DC component in the transmission coupling signal in the coaxial cable can be decoupled through the decoupling filter circuit, so that the test process is simplified, and the test cost is reduced.
Owner:BEIJING CO WHEELS TECH CO LTD

Multi-channel leaky coaxial cable fault positioning system and method

The invention discloses a multi-channel leaky coaxial cable fault positioning system and method, and belongs to the technical field of rail transit leaky coaxial cable fault positioning and monitoring. The system comprises a modulation signal generator, a circulator, an SPTD module, an FPGA signal processor and an upper computer. The system only needs to install a monitoring device at one end of the leaky coaxial cable, and is convenient to implement. The ZYNQ control panel is used for controlling IO signals, so that the SPTD switch is controlled to realize switching of monitoring channels, and multi-channel fault detection and positioning are realized; the unattended operation is realized, the detection and positioning cost is effectively reduced, and the detection efficiency is improved. According to the method, by introducing the phase error compensation function of the transmitting signal and the phase error compensation function of the echo signal, the phase compensation of the frequency mixing signal is realized, so that the phase error of the fault detection signal is reduced, the detection precision is improved, and the accuracy of fault judgment, fault point positioning and fault type judgment is effectively improved.
Owner:无锡市雷华科技有限公司

Multi-functional link assembly for small cell base station antenna apparatus

The present invention relates to a small cell base station antenna apparatus and, more particularly, comprises: a rotatable housing having an internal space open in the back / forth direction; a steering ball joint unit coupled to the rear side of the open internal space of the rotatable housing and guiding the rotatable housing to enable steering rotation in thereof the horizontal direction with reference to an arbitrary rotation center point in the internal space of the rotatable housing; a tilting ball joint unit which is coupled to the front side of the open internal space of the rotatable housing, and tilted and rotated in the vertical direction while the front end thereof, to which an antenna module is coupled, is guided by the rotatable housing with reference to the arbitrary rotation center point of the internal space; and a multi-strand coaxial cable provided for electrical connection between a radio unit (RRH) and the antenna module.
Owner:KMW INC

Multi-channel NbTi superconducting coaxial cable and preparation method thereof

The invention belongs to the technical field of superconducting wires, and discloses a multichannel NbTi superconducting coaxial cable and a preparation method thereof. The method comprises the following steps: introducing an Hf element into NbTi alloy powder to prepare an NbTi wire doped with the Hf element, respectively preparing an NbTi flat rectangular shell and a hole-containing insulating block, assembling the NbTi flat rectangular shell and the hole-containing insulating block, and inserting the NbTi wire into the hole of the insulating block to prepare the multi-channel NbTi superconducting coaxial cable. Through verification, the multi-channel NbTi superconducting coaxial cable can transmit a plurality of high-strength quantum bit signals at the same time, and is excellent in performance.
Owner:XIAN SUPERCONDUCTING WIRE TECHNOLOGIES CO LTD

A superconducting coaxial cable for quantum computer and a manufacturing method thereof

The present invention relates to the technical field of cable manufacturing, and in particular to a superconducting coaxial cable for quantum computers and a manufacturing method thereof, the method comprising: coating an inner insulating layer on the outer side of an inner conductor to form an inner conductor layer, electroplating a niobium coating layer on the inner wall of a stainless steel tube to form an outer conductor; forming a cable conductive layer; obtaining a single inner conductor layer travel speed change curve; determining a first speed mutation type and a second speed mutation type; determining the up and down stirring rate of an electroplating stirring rod at the outer conductor position; electroplating the inner wall of the stainless steel tube; determining an inner conductor movement adjustment mode according to the degree of friction between the inner conductor layer and the outer conductor, including adjusting the moving speed of the inner conductor layer in the outer conductor, or determining the initial rotation rate of the inner conductor layer when the outer conductor starts to pull the wire; pulling the outer conductor after sleeve connection to form a cable. The present invention achieves an increase in the stability of cable assembly.
Owner:嘉兴翼波电子有限公司

Coaxial cable processing technology

The invention relates to the technical field of cable processing, in particular to a coaxial cable processing technology which comprises the three steps of cable manufacturing, cooling forming and wiping drying, and the cooling forming step comprises the steps that after a coaxial cable body enters a cooling treatment box, a water inlet pipe is opened firstly, cooling water in the water inlet pipe is sprayed out through a spray head, and the coaxial cable body is cooled; and spraying on the surface of the coaxial cable main body for cooling. When the device is used, cooling water is sprayed through a spray head, and reciprocating rotation of a rotating ring is combined, so that a coaxial cable main body can be uniformly and quickly cooled, the cooling effect of the cable is ensured, and in the drying link, through cooperation of a piston cylinder and a heating box, a piston rod is driven to move through a push plate, so that hot air enters and exits; therefore, residual water drops on the surface of the cable are effectively dried, the cooling effect of the cable is guaranteed through the alternate cooling and heating treatment mode, and the situation that the performance of the cable is reduced due to water residues is avoided.
Owner:CHUNGUANG CABLE CO LTD

Wide beam radiation leakage coaxial cable

The present disclosure provides a wide beam radiation leakage coaxial cable, which includes an inner conductor, an insulating layer, an outer conductor and a sheath coaxially nested from inside to outside in sequence, at least two columns of slot groups are provided on the outer conductor, the columns of slot groups are distributed at different angles in the circumferential direction of the outer conductor, the included angle between two adjacent columns of slot groups is α=γ / n, where γ is the target radiation width, n is the number of columns of slot groups, each column of slot groups includes a plurality of slot arrays periodically arranged in the axial direction of the outer conductor, the pitch of each column of slot groups is the same, the pitch phase of each column of slot groups on the same leakage cable section is consistent, and each slot array includes a plurality of slots.
Owner:JIANGSU HENGXIN TECH CO LTD