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58 results about "Six port" patented technology
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Headspace sampling apparatus and method
InactiveUS6395560B1Easy to sampleVolume maximizationAnalysing fluids using sonic/ultrasonic/infrasonic wavesComponent separationGas phaseEngineering
Owner:MARKELOV MICHAEL
Automated capillary liquid chromatography small volume analysis system
InactiveUS6989129B2Reduce flow rateImprove performanceSamplingComponent separationChromatographic separationAutosampler
A system for automatically performing liquid chromatography analysis of low volume liquid chemical samples at nanosecond flow rates using an analysis column that integrates a pre-concentration trapping column and a chromatography separation column terminating at an electrospray nozzle of an online mass spectrometer. The analysis column consists of a capillary having an inside diameter of between 75 and 125 microns packed throughout with a porous bed of micron particles. A branch outlet positioned 10 to 16 centimeters upstream from the nozzle divides the analysis column into an upstream pre-concentration trap and a downstream separation column. An autosampler delivers low volume liquid samples to the upstream inlet via a two-position valve. Feed connections couple the autosampler to upstream inlet when the valve is open to inject a liquid sample into the pre-concentration trap at a maximum loading flow rate in the range from 0.5 to 50 microliters / minute. Thereafter, when the valve closes, it terminates the further injection the sample, and a concentrated portion of the sample then passes though the chromatography separation column at a much slower flow rate between 10 and 1,000 nanoliters per minute. Throughput can be doubled by coupling two such analysis columns to a single autosampler using a ten-port, two position valve. A single column can be supplied through a six port two-position valve.
Owner:PRESIDENT & FELLOWS OF HARVARD COLLEGE
Automatic testing system of non-linear thermal parameter of high-power microwave device and testing method thereof
The invention provides an automatic testing system of a non-linear thermal parameter of a high-power microwave device and a testing method thereof. The testing system comprises a control circuit module and a microwave circuit module. During a testing process, a vector network analyzer provides a signal source; connection with a correlated port of a microwave testing system is realized; and an MFC program is compiled by using a Microsoft Visual Studio 2012 to control a control circuit part of the system and obtain and display instrument testing data. With the Labview, adata collection program is complied for a six-port amplitude and phase testing module reserved in the system, thereby realizing automatic testing of a non-linear thermal parameter of a high-power microwave device. According to the invention, automatic switching of the testing circuit is realized; and in the testing system, the interface is reserved for the six-port amplitude and phase testing module, so that the cost of phase and amplitude testing of the high-power microwave device is reduced. An objective of automatic testing of a non-linear thermal parameter of a high-power microwave device within a broadband of 2G to 18G can be achieved. The system and method have characteristics of broadband, great convenience, rapidness, and high accuracy.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Tri-band measurement and control remote sensing satellite communication multi-functional composite feed source
ActiveCN109728445AEnsure consistencyLow cross polarizationWaveguide hornsSimultaneous aerial operationsNetwork connectionCoupling
The invention discloses a tri-band measurement and control remote sensing satellite communication multi-functional composite feed source. S-band folding arm oscillator illuminators are installed at the outermost side of a common-caliber corrugated horn through the X / Ku ring loading and the differential mode compatible loading; the S-band folding arm oscillator illuminators are connected with an S-band sum-difference network to form S-band sum-difference signals; common-caliber corrugated horn through the X / Ku ring loading and the differential mode compatible loading is connected with an X / Ku six-port wave separator; Ku-band signals are directly connected backwards for output to connect with a Ku-band orthogonal mode coupler to output orthogonal Ku signals of two paths of vertical polarization and horizontal polarization; X-band signals are subjected to equal-amplitude and in-phase coupling through fourth coupling ports of the X / Ku six-port wave separator to connect with four coupling input ports of an X-band five-end synthesizer, and the output port is connected with the input port of an X-band separator circular polarizer.
Owner:BEIJING RES INST OF TELEMETRY +1
System parameter of linearity multi-port, detection method and device for vector network analyzer
ActiveCN101387671AResistance/reactance/impedenceVoltage-current phase angleComplex amplitudePhase difference
The invention aim to shorten computing time used for system parameters of a five-port knot or a six-port knot e.g. a network analyzer (VNA), thereby simplifying a structure of a tested circuit. VNA is used to test the system parameters required by a tested device (DUT), but in the prior art, the system parameters are computed according to positions and diameters of centers of three circles on a complex plate based on complex amplitude ratio of input ports W=a2 / a1, just like the known integration method, complex steps are needed. The invention performs computation based on points of intersection of three circles of the system parameter k on the complex plane, e.g. three waves with phase difference 120 degrees are input in turn to input ports of the five-port knot, power values are output normalizedly based on the preset reference power, to compute the system parameters. Compared with the integration method in the prior, computation is simple, and no phase shifter is required.
Owner:矢加部 利幸
Six port linear network single wire multi switch transceiver
ActiveUS20100071009A1Multiple-port networksSatellite broadcast receivingTransceiverMultiway switching
A fluid sensor comprises a sensor housing (12), a sensor package (14), an actuator (16) and a switch (18). The sensor package (14) is disposed within the sensor housing (12) and includes first and second screens and at least one sensing membrane. The sensing membrane is disposed between the first and second screens (36) and is adapted to expand when exposed to a predetermined quantity of a first predetermined fluid. The actuator (16) is disposed proximate the sensor package (14) within the sensor housing (12) and moveable between a first position and a second position through an intermediate position. The switch (18) is disposed proximate the actuator (16) and is operable between closed and open positions. When the actuator (16) is in the second position at least a portion of the actuator (16) depresses the switch (18) to control an-electrical, circuit connected therewith.
Owner:INTERDIGITAL MADISON PATENT HLDG
Chromatographic automatic sampler and automatic sampling method
ActiveCN109100458AThe injection volume is accurate and reliableHigh precisionComponent separationFour-way valveAutosampler
The invention discloses a chromatographic automatic sampler and automatic sampling method. The chromatographic automatic sampler comprises a four-way valve, a quantitative loop, an injection valve anda six-way valve, wherein the four-way comprises four ports a, b, c and d and outer ends of the four ports are respectively connected with an injector, a cleaning fluid storage bottle, a first waste fluid bottle and a buffer tube; one end of the quantitative loop is communicated with the buffer tube; the injection valve comprises three ports A, B and C and two passages respectively used for communicating the ports A and C and communicating the ports A and B in a switchable manner; the outer ends of the three ports A, B and C are respectively connected with the other end of the quantitative loop and one ends of a sampling needle and a connection ring; the six-way valve comprises six ports I, II, III, IV, V and VI and the outer ends of the six ports are respectively connected with one ends of high-pressure leacheate and a sampling ring, the other end of the connection ring, the other ends of another waste fluid bottle and the sample ring and a chromatographic column. When being used forcarrying out automatic sampling, the chromatographic automatic sampler has the advantages of being high in sampling amount correctness and high repeatability.
Owner:ANHUI WAYEE SCI & TECH CO LTD
Common-path forward-reverse simultaneous measuring device for fiber optic gyroscope ring
ActiveCN107289922AObtaining Polarization Coupling SymmetryRealize forward/reverse simultaneous measurementSagnac effect gyrometersFiberMeasurement device
Owner:HARBIN ENG UNIV
Dielectric integrated suspension line-based six-port network
The invention discloses a dielectric integrated suspension line-based six-port network. The dielectric integrated suspension line-based six-port network comprises a dielectric integrated suspension line and a six-port circuit, wherein the six-port network is arranged on the dielectric integrated suspension line, the dielectric integrated suspension line comprises five layers of double-side printedcircuit boards which are laminated from top to bottom, the six-port circuit is printed on the third layer of circuit board and comprises four couplers, the four couplers are annularly connected by employing a strip line structure, each coupler employs a patch design, and respective cavity of the couplers is independent. The six-port circuit has the characteristics of low loss, self assembly, integration, low cost and high integral cost performance.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Cantilever beam based direct heating microwave radiation device of micro nano electromechanical system
InactiveCN108414829AImprove linearityHigh sensitivityPower measurement by digital techniqueFrequency to amplitude conversionMicrocontrollerMicro nano
The invention relates to a cantilever beam based direct heating microwave radiometer of a micro nano electromechanical system. The radiometer is composed of a microwave antenna, a low noise amplifier,a six-port cantilever beam coupler, a microwave frequency and power detection module, an amplifier, a single-chip microcomputer and an LCD; a signal received by the microwave antenna is amplified andthen input to the six-port cantilever beam coupler, a coupled signal is used for power and frequency detection, amplified by the amplifier and then operated by the single-chip microcomputer, and thefrequency and power of the radiation signal are displayed in the LCD. The radiation frequency and intensity of the radiation signal can be obtained at the same time, a direct heating type vertical nano microwave power sensor instead of a traditional diode serves as a microwave power sensor, the radiometer has the advantages of high linearity, low temperature shift and high upper power limit, the thermal conductivity of a polycrystalline silicon nano wire is much lower than that of a traditional body material, the thermal to electric conversion efficiency is improved, the output voltage is increased greatly, and the sensitivity and precision of the radiometer are improved.
Owner:SOUTHEAST UNIV
An Antenna Channel Detection Method Based on Six-Port Circuit
InactiveCN101299644BTransmission monitoringWireless communicationAudio power amplifierFrequency mixer
Owner:INVENGO INFORMATION TECH
Realizing method and realizing device of six-port phase detector
InactiveCN103217576AImprove anti-interference abilityAdapt to nuclear occasionsVoltage-current phase anglePhase sequence/synchronism indicationPhase detectorSignal-to-noise ratio (imaging)
The invention provides a realizing method of a six-port phase detector. The realizing method of the six-port phase detector is used for detecting a phase of a radio frequency (RF) signal. According to the realizing method of the six-port phase detector, firstly, a traditional circuit model is modified, then according to the amplitude and a phase of a vector quantity and a base band vector quantity F related to a RF unknown signal, a certain reference signal is generated, can be used for measuring the phase of the unknown signal and is applied to phase verification and phase sequence verification of microwaves, a receiver and a radar. A traditional phase detection device is prone to external disturbance, and is low in signal to noise ratio and sensitivity and complex in system constitution. The realizing method of a six-port phase detector is high in sensitivity and signal to noise ratio, good in stability, strong in capacity of resisting disturbance, and simple and reasonable in structure, thereby obtaining an optimal phase detection result.
Owner:王少夫
Pumped storage power generator running at continuously variable speed and non-continuously variable speed
InactiveCN105846739AImprove running stabilityAchieve smooth self-startGenerator control by field variationWater wheelAutomatic control
The invention discloses a pumped storage power generator running at continuously variable speed and non-continuously variable speed. The generator is designed to increase the comprehensive running performance of a pumped storage power generator set so that the generator set can be applied to a wider water head scope, achieve high speed adjustment to active power, provide frequency automatic control capacity, increase the stability, and realize smooth self-startup. The technical solutions of the invention are as follows. The generator is a three-phase AC power supply type generator whose outlet wires from the stator winding and the excitation winding are in a six-port manner. Both the stator winding and the excitation winding adopt a speed regulating mode, allowing the switch between a high speed rotation gear and a low speed rotation gear. At the high speed rotation gear, the stator winding is in YY type connection. At the low speed rotation gear, the stator winding is in Y type connection. According to the invention, the power generator can expand the rotation speed change scope of a generator set. With changeable speed, the generator can be better applied to meet the requirements of power generating and water pumping so that the working efficiency of water wheels and water pumps can be improved.
Owner:HARBIN UNIV OF SCI & TECH
Wide frequency band microwave measurement method
InactiveCN106501746AEasy to useConducive to accurate solutionElectrical measurementsMicrowaveMean square
The invention discloses a wide frequency band microwave measurement method. The wide frequency band microwave measurement method utilizes double-frequency signals to generate a synthesis sample, uses a genetic algorithm to search the optimal sample distribution, and then performs optimization calibration on a W plane and an error box. For the wide frequency band microwave measurement method, the sample synthesis technology is used, thus being conductive to usage of the value optimization technology, and improving the measurement accuracy of a six-port system; a minimum mean square deviation optimization method is used to determine the estimated initial value, thus being conductive to accurate solution of calibration parameters; the genetic optimization algorithm is used to search the optimal sample combination, thus achieving the aim of maximally reducing the calibration error; and a sub-band method is used, thus being conductive to implementation of ultra wide band measurement. The invention provides a strong functional wide frequency band calibration method for measurement of microwave parameters, being high in measurement accuracy. The wide frequency band microwave measurement method is suitable for low cost on-line measurement and real-time monitoring of microwave parameters, and is suitable for a digital receiver in a low cost communication system, and the like.
Owner:SOUTHWEST JIAOTONG UNIV
Device and method for detecting non-methane total hydrocarbon content and fractional hydrocarbon content of carbon dioxide
PendingCN108254469ADetection securitySimple and fast operationComponent separationSix portChromatography column
The invention discloses a device and a method for detecting the non-methane total hydrocarbon content and the fractional hydrocarbon content of carbon dioxide. The device comprises a column box, and afirst six-port valve, a second six-port valve, a sample quantifying tube, a first chromatographic column, a second chromatographic column and an FID detector which are arranged inside the column box,wherein a port VI-a of the first six-port valve is connected with a sampled gas input pipe; a port I-a is connected with a sampled gas output pipe; a port V-a is connected to a port II-a through thesample quantifying tube; a port IV-a is connected with the carrier gas input pipe; a port III-a is connected with one end of a carrier gas output pipe; a port II-b of the second six-port valve is connected with the other end of the carrier gas output pipe; a port I-b is connected to a port VI-b through the first chromatographic column; a port V-b is connected with the FID detector; a port III-b isconnected to a port IV-b through the second chromatographic column. Through the device and the method, the non-methane total hydrocarbon content and the fractional hydrocarbon content of a sample canbe simultaneously analyzed under the conditions that an additional analytical instrument is not used and the chromatographic columns are not replaced, the operation is simple and convenient, the analysis speed is high and the analysis precision is high.
Owner:KUNSHAN JINHONG CARBON DIOXIDE
Adaptive radar ratio method slot-coupling direct micro-nano microwave detecting and demodulating system
An adaptive radar ratio method slot-coupling direct micro-nano microwave detecting and demodulating system of the invention is mainly composed of a six-port slot coupler, a microwave phase detection module, a microwave frequency and power detection module and a demodulation module. The adaptive radar consists of an antenna, a transmitting-receiving conversion circuit, a ratio method slot-couplingdirect micro-nano microwave detecting and demodulating monolithic system, a signal memory, a signal analyzer, a microwave signal reconstructor, a microwave signal modulator, and a microwave signal power amplifier. An indirect heating microwave power sensor uses polycrystalline silicon nanowire clusters to form a thermocouple arm. The polycrystalline silicon nanowire clusters have thermal conductivity much lower than that of a conventional bulk material, have high thermoelectric conversion efficiency, and can greatly improve the sensitivity of the microwave detection system. The above structurecan integrate the power detection module, the frequency detection module, and the phase detection module of the microwave signal, and can simultaneously and synchronously detects the power, the frequency and the phase of the microwave signal and demodulates a modulated signal.
Owner:SOUTHEAST UNIV
Quantitative concentration and enrichment sample injecting device and method of proton transfer reaction ion source
InactiveCN107578979AIncrease concentrationReduce spreadSamples introduction/extractionPreparing sample for investigationDiffusionProton
A quantitative concentration and enrichment sample injecting device and method of a proton transfer reaction ion source comprises a collection / sample injecting six-way valve, a semiconductor refrigerator, an electric heating driver, a gas extracting meter, a gas extracting pump and a central controller. A capturing pipe supportive of direct electric heating and condensation is arranged in a vacuumrefrigerating cavity of the semiconductor refrigerator and connected with a heating electrode and the electric heating driver, six ports of the collection / sample injecting six-way valve are a zero gas port, a PTR sample injecting port, a sample injecting end port, a sampling port, a capturing gas extracting pump port and a sample ejecting end port, and the gas extracting pump is connected with ametering device. The device can realize switching between two working states like collection / sample injecting and switching of condensing capture and heating analysis. Forward sampling and reverse sample injecting are realized in a same system according to gas flow direction, so that diffusion is reduced, concentration of samples after analysis is increased, and sensitivity is improved by 2-4 orders of magnitude.
Owner:BEIJING SANXIONG SCI & TECH CO
High-contrast photonic crystal "or," "not" and "xor" logic gate
InactiveUS20170351157A1Compact structureEasy to integrateLogic circuits using opto-electronic devicesOptical light guidesPhotonic crystalEngineering
The present invention discloses an high-contrast photonic crystal “OR”, “NOT” and “XOR” logic gate, comprising a six-port two-dimensional photonic crystal, a nonlinear cavity unit and a cross-waveguide logic gate unit; the high-contrast photonic crystal “OR” logic gate includes a first reference-light input port, two first idle ports, two first signal-input ports and a first signal-output port; the high-contrast photonic crystal “NOT” logic gate includes two second reference-light input ports, two second idle ports, a second signal-input port and a second signal-output port; and the high-contrast photonic crystal “XOR” logic gate includes a three reference-light input port, two three-idle ports, two three-signal input ports and a three-signal output port; the cross-waveguide logic gate unit is arranged with different input or output ports; and the nonlinear cavity unit is coupled with the cross-waveguide logic gate unit. The structure of the present invention is easy to integrate with other optical logic elements.
Owner:OUYANG ZHENGBIAO
CO oxidation reaction device
InactiveCN102274679AMonitor temperature in real timeExplicitly reveal internal reactive behaviorDispersed particle separationStraight tubeDisplay device
The invention relates to a CO oxidation reaction device. The first inlet of the gas path communicates with the mixer through the gas pipeline through the flow controller one, and the second gas inlet connects with the mixer through the gas pipeline through the flow controller two. The third inlet is connected to the mixer through the gas pipeline through the flow controller, the fourth inlet of the gas pipeline is connected to the mixer through the gas pipeline through the flow controller four, and the outlet of the mixer is connected to the reaction furnace and the six-way valve of the six-way valve. The first interface is sequentially connected through the gas pipeline, a quantitative tube is connected between the second interface of the six-way valve and the fifth interface of the six-way valve, the third interface of the six-way valve and the fourth interface of the six-way valve are respectively connected to the chromatographic interface. The gas pipeline is connected, the sixth port of the six-way valve is connected with the mass spectrometer interface through the gas pipeline, and the electrical signal output ends of the four flow controllers and thermocouples are respectively connected to the computer and the spectrogram display device. The invention adopts the straight-tube structure of the reaction furnace, which is fast in analysis and satisfies various functions of precise measurement, control and analysis.
Owner:TIANJIN XIANNQUAN IND & TRADE DEV
Miniaturized double-layer half-mode substrate integrated waveguide six-port device
The invention discloses a miniaturized double-layer half-mode substrate integrated waveguide six-port device, which includes a top layer dielectric substrate, a bottom layer dielectric substrate, and a middle layer metal layer that are stacked and attached to each other, and the upper surface of the top layer dielectric substrate is arranged There is a top metal layer, and the lower surface of the bottom dielectric substrate is provided with a bottom metal layer; the top dielectric substrate and the bottom dielectric substrate are provided with two sets of mutually symmetrical metallized through holes, and a set of metallized through holes is connected to the top metal layer. 1. The top dielectric substrate and the middle layer metal layer constitute the first half-mode substrate integrated waveguide; a group of metallized through holes and the bottom metal layer, the bottom dielectric substrate and the middle layer metal layer constitute the second half-mode substrate integrated waveguide; The top metal layer is provided with three ports and multiple complementary split resonant rings; the middle metal layer is provided with two rows of mutually symmetrical round holes; the bottom metal layer is provided with three ports. The invention has the advantages of simple design structure, wide six-port stable output working bandwidth, compact structure, reduced processing difficulty and cost, and reduced volume.
Owner:NANJING UNIV OF POSTS & TELECOMM
Automatic testing system and testing method for nonlinear thermal parameters of microwave high-power devices
The present invention provides a kind of microwave high-power device non-linear thermal parameter automatic testing system and testing method thereof, and testing system comprises: control circuit module and microwave circuit module; Testing process is that vector network analyzer provides signal source, and then with microwave testing system Connect the relevant ports, and finally use Microsoft Visual Studio 2012 to write the MFC program to control the system control circuit part and acquire and display the instrument test data, and use Labview to write the data acquisition program for the six-port amplitude and phase test module reserved in the system. Finally, the automatic test of nonlinear thermal parameters of microwave high-power devices is realized; the present invention realizes the automatic switching of test paths, and the test system reserves interfaces for the six-port amplitude-phase test module, which reduces the cost for microwave high-power device amplitude-phase tests; In the 2G-18G wide frequency band, the goal of automatic testing of nonlinear thermal parameters of microwave high-power devices is realized, and it has the characteristics of wide frequency band, convenience, speed and accuracy.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Micro-nano electronic machinery system indirect heating microwave radiometer based on cantilever beam
InactiveCN108459204AImprove linearityHigh sensitivityPower measurement by digital techniqueFrequency to amplitude conversionMicro nanoPower sensor
A micro-nano electronic machinery system indirect heating microwave radiometer based on a cantilever beam comprises a microwave antenna, a low-noise amplifier, a six-port cantilever beam coupler, a microwave frequency and power detection module, an amplifier, a single chip microcomputer and a liquid crystal display. Signals received by the microwave antenna are amplified to enter the six-port cantilever beam coupler, the coupled signals are used for power and frequency detection, the signals are calculated through the single chip microcomputer, and the radiation signal frequency and power aredisplayed on the liquid crystal display. The micro-nano electronic machinery system can obtain radiation frequency and radiation intensity of radiation signals at the same time, replaces a traditionaldiode with an indirect heating vertical nano microwave power sensor as a microwave power sensor and is high in linearity, small in temperature excursion and high in power upper limit, the heat conductivity of polycrystalline silicon nanowires is far lower than traditional bulk materials, and therefore, the thermoelectric conversion efficiency is improved, the output voltage is greatly improved, and the sensitivity and the precision of the radiometer are improved.
Owner:SOUTHEAST UNIV
Six-port microwave reflectometer self-calibration device and using method thereof
PendingCN109495191ACorrect test errorImprove measurement accuracyTransmitters monitoringMicrowaveStandard state
The invention discloses a six-port microwave reflectometer self-calibration device, comprising a coupler, a phase power switching module, a single-pole-four-throw microwave switch, an inserting element module, and a single-pole-double-throw microwave switch, which has one input end and two output ends and can generate 8 sets of self-calibration signals. The phase power switching module is connected to the inserting element module though the single-pole-four-throw microwave switch. The single-pole-four-throw microwave switch and the single-pole-double-throw microwave switch are controlled by the PC to achieve automatic switching of the calibration state. According to the six-port microwave reflectometer self-calibration device, eight standard states can be generated for self-calibration ofthe six-port microwave reflectometer, and the test error is corrected, thereby greatly improving the measurement accuracy.
Owner:METROLOGY & MEASUREMENT CENT OF CHINA ACADEMY OF ENG PHYSICS
Phase comparison method slot-coupling MEMS microwave detection and demodulation single-chip system in adaption radar
InactiveCN108469606AMeet the requirements of real-time matching communicationReduce power consumptionWave based measurement systemsTransceiverSlot coupling
The invention provides a phase comparison method slot-coupling MEMS microwave detection and demodulation single-chip system in adaption radar, which is mainly composed of a six-port slot coupler, a microwave frequency and power detection module, a microwave phase detection module and a demodulation module. The adaption radar is composed of an antenna, a transceiver conversion circuit, a phase comparison method slot coupling MEMS microwave detection and demodulation single-chip system, a signal memory, a signal analyzer, a microwave signal reconstruction, a microwave signal modulator and a microwave signal power amplifier. With the above structure, synchronous detection of the power, frequency and phase of the microwave signal at the same time and demodulation of the modulated signal can beachieved, realizing the phase comparison method slot-coupling MEMS microwave detection and demodulation single-chip system in the adaption radar.
Owner:SOUTHEAST UNIV
Non-coherent six-port receiver
InactiveCN1135803CLow costSimple structureAmplitude demodulation by homodyne/synchrodyne circuitsPhase-modulated carrier systemsRF front endSix port
The present invention relates to a method and a receiver for high-frequency signals. The receiver comprises a power divider(4)to divide a modulated RF input signal in at least two branches. At least one delay line(5, 6)is provides for a delay of the branches relatively to each other by a predetermined delay constant. A calculation circuit(7, 8)calculates at least three power levels based on combinations(12, 13, 14)of the two branches of the input signal relatively delayed(5, 6)to each other. A processing means(10)calculates the phase and the amplitude of a complex signal representing the relation between the two branches of the input signal relatively delayed to each other, on the basis of the said at least three power levels(8). The invention therefore provides for a direct 6-port receiver based on non-coherent detection. The concept of the invention is inherently cheap and features high integration ability and low-cost processes. Ideally the whole RF front end can be placed on one chip.
Owner:SONY INT (EURO) GMBH
Scalable optical network-on-chip architecture and communication method based on double-layer layout
ActiveCN106936736BReduce lossImprove energy utilizationMultiplex system selection arrangementsData switching networksTime delaysIntellectual property
The invention discloses an expandable optical network-on-chip structure based on double-layer layout and a communication method thereof and mainly solves the problem that in an existing optical network-on-chip structure is high in cross loss and relatively high in communication time delay cost. The structure comprises optical routers, optical waveguides and intellectual property IP cores. Each six-port optical router is connected with two intellectual property IP cores and four optical waveguides. The optical waveguides are etched on upper layer silicon substrates and lower layer silicon substrates according to the positions of the connected router ports. The communication method comprises the steps of establishing a coordinate system in an expandable optical network-on-chip; determining transmission paths of signals; configuring optical router ports on the transmission paths; sending optical signals; and receiving and processing the optical signals. According to the structure and the method, the layout of the optical network-on-chip structure is effectively optimized, and the expandability and communication efficiency of the optical network-on-chip are improved.
Owner:XIDIAN UNIV
Multifunctional large aperture oil (gas) extraction well head equipment
InactiveCN105275428ARelieve pressureImprove work efficiencyWell/borehole valve arrangementsSealing/packingManufacturing technologyEngineering
The invention relates to multifunctional large aperture oil (gas) extraction well head equipment, and belongs to the petroleum machinery design manufacture technical field; the multifunctional large aperture oil (gas) extraction well head equipment comprises a tubing head cross joint, a liquid operated gate valve, a hand-operated gate valve, a six-port, and a small cross joint; the six-port is connected between the top of the hand-operated gate valve and a lower port of the small cross joint. The six-port is arranged between the hand-operated gate valve and the small cross joint so as to increase inlet paths of the well head equipment, thus creating conditions for selecting a matching large aperture main drift diameter; under the conditions, four cracking machine can be connected through the front, rear, left and right paths of the six-port; water and agents can be injected underground, thus improving work efficiency; the caliber can be enlarged so as to effectively reduce the pressure in the well head equipment, and thus improving safety factor of the equipment; the multifunctional large aperture oil (gas) extraction well head equipment is high in work efficiency, and large in safety factor.
Owner:李玉俊
EHF frequency band microwave network device
The invention provides an EHF frequency band microwave network device with a novel structural design. The device comprises a wave separator provided with six ports; Four Q / K frequency band cavity filters; two + 45 DEG phase shifters; two-45 DEG phase shifters; a combiner provided with five ports; a separator polarizer; and a K-band orthogonal mode coupler. The four Q / K frequency band cavity filters are respectively connected to a front side port, a rear side port, an upper side port and a lower side port of the wave separator. One end of the two +45 DEG phase shifters in the same direction are respectively connected to the two Q / K frequency band cavity filters, and the other ends of the two +45 DEG phase shifters are respectively connected to the combiner. One end of the two -45 DEG phase shifters in the same direction is connected to the two Q / K frequency band cavity filters, the other end of the 45-degree phase shifter is connected to the combiner, and the separator polarizer is connected to a left side port of the wave separator. The K-band orthogonal mode coupler is connected to a left side port of the combiner. A circular waveguide is connected to the port of the right sidesurface of the wave separator.
Owner:SHAANXI EVSAT SCI & TECH DEV
Adaptive radar phase-comparing method slot-coupling direct micro-nano microwave detecting and demodulating system
An adaptive radar phase-comparing method slot-coupling direct micro-nano microwave detecting and demodulating system of the invention is mainly composed of a six-port slot coupler, a microwave phase detection module, a microwave frequency and power detection module and a demodulation module. The adaptive radar consists of an antenna, a transmitting-receiving conversion circuit, a phase-comparing method slot-coupling direct micro-nano microwave detecting and demodulating monolithic system, a signal memory, a signal analyzer, a microwave signal reconstructor, a microwave signal modulator, and amicrowave signal power amplifier. An indirect heating microwave power sensor uses polycrystalline silicon nanowire clusters to form a thermocouple arm. The polycrystalline silicon nanowire clusters have thermal conductivity much lower than that of a conventional bulk material, have high thermoelectric conversion efficiency, and can greatly improve the sensitivity of the microwave detection system.The above structure can integrate the power detection module, the frequency detection module, and the phase detection module of the microwave signal, can simultaneously and synchronously detects thepower, the frequency and the phase of the microwave signal and demodulates a modulated signal.
Owner:SOUTHEAST UNIV
MEMS microwave detection and demodulation monolithic integrated system with phase comparison method based on GaAs in adaptive radar
InactiveCN108680908AMeet the requirements of real-time matching communicationReduce power consumptionWave based measurement systemsTransceiverVIT signals
The adaptive radar faced by the invention consists of an antenna, a transceiver conversion circuit, an MEMS microwave detection and demodulation monolithic integrated system, a signal memory, a signalanalyzer, microwave signal reconstruction, a microwave signal modulator, and a microwave signal power amplifier. An MEMS microwave detection and demodulation monolithic integrated system with a phasecomparison method based on GaAs in the adaptive radar mainly consists of a six-port fixed beam coupler, a microwave frequency and power detection module, a microwave phase detection module, and a demodulation module. The detection of power, phase and frequency of microwave signals and the demodulation of modulated signals can be carried out at the same time by using the structure, and so the monolithic system integration of the MEMS microwave signal detection and demodulation for the adaptive radar can be realized.
Owner:SOUTHEAST UNIV
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