62 results about "Radiated emission" patented technology

The invention discloses a chip radiation emission test method, device and equipment and a storage medium, and relates to the technical field of chip electromagnetic compatibility design and simulation, and the method comprises the steps: constructing a target packaging body model corresponding to a to-be-tested chip; constructing a target test circuit board model corresponding to the to-be-tested chip; determining a target scattering parameter corresponding to the target to-be-measured electromagnetic structure; based on the target scattering parameters, the target to-be-tested electromagnetic structure is connected to the first simulation model, the second simulation model and a voltage source model and a current source model matched with the target to-be-tested electromagnetic structure, and a test link of the target to-be-tested electromagnetic structure is constructed; performing frequency response analysis on the test link, and determining radiation emission energy data of an output port of the transverse electromagnetic wave cell model; and generating a corresponding amplitude-frequency characteristic curve based on the radiation emission energy data. According to the method, the early simulation test of the radiation emission characteristic of the chip can be realized, and the research and development efficiency of the chip is remarkably improved.

The present invention provides a part radiation emission electromagnetic field risk prediction method and apparatus, a device, and a medium. The method comprises: acquiring part simulation data, wherein the part simulation data comprises physical device data and working parameter data; establishing a first simulation model on the basis of the part simulation data, and inputting actually measured common-mode current data into the first simulation model to carry out spatial domain solution so as to obtain a spatial domain electromagnetic field distribution and a port parameter; linking the spatial domain electromagnetic field distribution and the port parameter to a preset second simulation model for circuit simulation, and using actually measured noise data and the port parameter as input of the second simulation model to obtain a predicted field intensity value, so as to carry out risk prediction on a part radiation emission electromagnetic field. The method can improve the operation efficiency and the modeling precision, and realize the part radiation emission electromagnetic field risk prediction.

A communication system for use in a vehicle includes a first communication device configured for operation in the vehicle, and a second communication device configured for operation in the vehicle. A cable assembly communicatively couples the first communication device with the second communication device. A signal suppressing device is coupled to the cable assembly at a location proximate to an end of the cable assembly. The signal suppressing device is configured to suppress signals in a frequency range corresponding to in-band radiated emission (RE).

A cleaning system for cleaning a component related to a lithographic process such as a pellicle, reticle, wafer or another lithographic component, the system including at least one radiation emitter configured to, in use, irradiate a region of the component so as to cause thermomechanical vibrations in the component and / or induce sputtering of contaminants present on the component.

To provide a compact sensor that detects the movement of an object in a 360-degree plane around the sensor. [Solution] The system includes a sensor module 50 that emits radio waves in a specific direction and detects the movement of an object based on the reflected waves of the emitted radio waves, and an antenna 51 that radiates the emitted radio waves in a 360-degree direction on a plane centered on the sensor. The antenna includes a conical reflector 68 that splits the radio waves into two directions, a slit 69 that allows radio waves traveling in a specific direction to pass through, an opening 70 that radiates the radio waves split into two directions, and first fins 71 and second fins 72 that adjust the angle of the radio waves radiated from the opening. The shielding plates 66 provided above and below compress the vertical direction and increase the gain of the radio waves radiated in the horizontal direction.

A guidance method and system for calculating course correction when navigating includes using unintended radio frequency and / or unintended radiative emissions The guidance method and system for calculating course correction when navigating using unintended radio frequency and / or radiative emissions may generally include sensing the unintended radio frequency and / or unintended radiative emissions and then utilizing the sensed unintended radio frequency and / or the sensed unintended radiative emissions for navigation. The unintended radio frequency and / or the unintended radiative emissions sensed and utilized for guidance includes non-standard, ambient, third-party, or other radio frequencies or radiative emissions not originally designed for navigational purposes. Wherein, the utilizing the sensed unintended radio frequency and / or the sensed unintended radiative emissions includes calculating course corrections via the sensed unintended radio frequency and / or the unintended radiative emissions.

An electrical generator system including a radionuclide material; and a sandwich structure, the sandwich structure including: a layer of an n-type semiconductor material; a layer of intrinsic n-type semiconductor material; a layer of p-type semiconductor material; and metal electrodes, one of the electrodes being in direct contact with said n-type semiconductor material and another electrode being in contact with the p-type semiconductor material, forming metal-semiconductor junctions therebetween; wherein radiation emissions received from said radionuclide material are converted into electrical energy at said metal-semiconductor junctions; and electrical contacts connected to said electrodes which facilitate the flow of said electrical energy when connected to a load.

The invention discloses a high-precision electromagnetic detection device, which belongs to the technical field of radiation emission testing and comprises a movable base, a mast is arranged on the upper surface of the movable base, a linear module is vertically arranged in the mast, a fixing plate is mounted on the surface of a sliding table of the linear module, and an antenna assembly is mounted on the upper surface of the fixing plate. By arranging the antenna assembly, the physical length of the antenna can be dynamically adjusted, half-wavelength resonance conditions of different test frequency bands can be matched in real time, dynamic impedance matching is achieved in continuous scanning, polarization switching can be completed through electric control in the static state of the physical structure by arranging the horizontal polarization unit and the vertical polarization unit, and the test efficiency is improved. Cable abrasion, phase instability and vibration interference caused by mechanical rotation are avoided, the measurement consistency is guaranteed, rapid complete polarization scanning is supported, the test efficiency and precision are effectively improved, electromagnetic reflection interference can be restrained through annular scattering ribs arranged on the surface of the mast, and the measurement accuracy is further enhanced.

An electrical generator system including a radionuclide material; and a sandwich structure, the sandwich structure including: a layer of an n-type semiconductor material; a layer of intrinsic n-type semiconductor material; a layer of p-type semiconductor material; and metal electrodes, one of the electrodes being in direct contact with said n-type semiconductor material and another electrode being in contact with the p-type semiconductor material, forming metal-semiconductor junctions therebetween; wherein radiation emissions received from said radionuclide material are converted into electrical energy at said metal-semiconductor junctions; and electrical contacts connected to said electrodes which facilitate the flow of said electrical energy when connected to a load.

The embodiment of the invention provides a radiation emission simulation method and device, a medium and a program product, and relates to the technical field of electrical testing. The method is used for performing radiation emission simulation on an Ethernet link comprising an Ethernet chip, and comprises the following steps: electromagnetic parameters of key components in the Ethernet link are extracted in a segmented manner, and the key components comprise components with the capability of generating electromagnetic interference in the Ethernet link; performing cascade analysis on the electromagnetic parameters of the key components according to an actual connection sequence to generate an electromagnetic coupling path model of the Ethernet link; and based on the electromagnetic coupling path model, performing simulation calculation through an excitation source of the Ethernet link sending end to obtain a radiation emission simulation result of the Ethernet link. By adopting the method, a radiation emission simulation result with relatively high accuracy can be obtained.

The utility model discloses a USB port power supply product radiation emission test system, including direct current source, filter, impedance stabilizing network, direct current source is used for converting commercial power into DC5V output, and through the filter, the interference of output end is filtered and then is accessed to the wave darkroom, and then through the short line is connected to the positive and negative electrode input end of passive device impedance stabilizing network, and is output through the USB port, and the impedance matching network is used for providing the uniform standard impedance for the measured equipment connected with its USB port through the USB line. The utility model through the wave darkroom isolation direct current source's interference, and the filter has filtered out the interference of direct current source output end, and after direct current is introduced into the wave darkroom, through the short line connection to the impedance stabilizing network, and the short line can reduce the interference from direct current source as far as possible, and the impedance stabilizing network is passive device, and itself does not produce the interference, and can provide the uniform standard impedance for the sample, to guarantee the consistency of test result from the whole.

The utility model belongs to signal power supply system equipment electromagnetic compatibility protection technical field relates to a power supply system electromagnetic compatibility port protection device. Including shielding shell, top cover, incoming line mouth closing plate, shielding connector, shielding connector mounting plate, surge protection device, filter and output terminal, shielding shell and top cover mutually cooperate constitute closed cavity, the cavity inside sets surge protection device, filter in proper order, shielding connector is fixed in the cavity lateral wall through mounting plate, and the incoming line mouth closing plate is located in the incoming line side of cavity, and the output terminal is located in the output side of cavity. The utility model device can be used for signal power supply system power supply conduction annoyance, radiation emission overproof improvement, surge protection.

The invention relates to the technical field of large-scale power grid safety guarantee, and particularly provides a remote monitoring method and system for a high-low voltage switch cabinet, and the method comprises the steps: enabling a solid film coating to be attached to the surface of an outer insulating layer of an inner conductor of the switch cabinet; the solid film coating generates stimulated radiation and emits visible light band photons to form an initial polychromatic light signal array containing space field intensity distribution information; binding the parameters with the spatial source point coordinates of the optical signals, compiling into a structured digital document, and generating a multi-dimensional spectrum feature coding data set; outputting the encrypted data packet sequence; and the encrypted data packet sequence is sent according to a preset frame format through a remote communication interface to form a remote monitoring data stream which can be used for transmission and interpretation. The system comprises an optical signal array acquisition module, a data set generation module and a data packet output module. Electromagnetic field changes are converted into optical signals through the fluorescent coating, field intensity characteristic parameters are extracted through spectral analysis, and remote transmission is achieved after encryption processing.

The invention discloses a maneuvering deployment electromagnetic environment effect test system and method, and relates to the field of electronic engineering and electromagnetic measurement. According to the invention, a military cross-country general chassis vehicle is adopted to carry a 9m shelter as an integrated carrier, and based on modular integration of four subsystems of conduction emission, radiation emission, conduction sensitivity and radiation sensitivity, a mobile lifting platform is matched with a multi-degree-of-freedom servo turntable to realize maneuvering deployment of an antenna and a power amplifier; the electromagnetic environment effect one-stop test which covers the full frequency band of 10 kHz to 40 GHz, is compatible with multiple GJB standards, and has high external field adaptability and rapid unfolding and folding capability is realized.

An optoelectronic semiconductor chip comprises a front-facing, radiation-transparent chip substrate, a rear-facing semiconductor layer sequence arranged on the chip substrate (the semiconductor layer sequence being configured for radiation emission or detection), and rear-facing contact elements for contacting the semiconductor layer sequence. The chip substrate is formed in one piece with a lens shape that deviates from a cuboid. Furthermore, a method for manufacturing at least one optoelectronic semiconductor chip is described.

Radiation-emitting semiconductor chip (1), comprising - a semiconductor body (2) having an active region (20) designed to generate radiation; - a first contact layer (3) comprising a first contact surface (31) for external electrical contacting of the semiconductor chip and a first contact finger structure (35) connected to the first contact surface; - a second contact layer (4) comprising a second contact surface (41) for external electrical contacting of the semiconductor chip and a second contact finger structure (45) connected to the second contact surface, wherein the first contact finger structure and the second contact finger structure overlap in places in a top view of the semiconductor chip; - a current distribution layer (51) which is electrically connected to the first contact layer; - a connecting layer (52) which is electrically connected to the first contact layer via the current distribution layer; - an insulating layer (6) containing a dielectric material, wherein the insulating layer is arranged locally between the connection layer and the current distribution layer; - the insulation layer has at least one opening (60) in which the connection layer and the current distribution layer adjoin each other; and - the diameter of the openings is between inclusive 2 µm and inclusive 6 µm.

An apparatus for inspecting a coated electrode sheet for a secondary battery. The apparatus comprises: a radiation emitting part configured to emit an x-ray or a beta ray towards the coated electrode sheet; a radiation detecting part, disposed opposite the radiation emitting part so as to have the coated electrode sheet positioned therebetween, wherein the radiation detecting part is configured to detect an amount of the x-ray or the beta ray emitted by the radiation emitting part and transmitted through the coated electrode sheet, to thereby gauge the thickness of the coating; a first protective layer disposed between the coated electrode sheet and one of the radiation emitting / detecting parts to cover a surface of said one of the radiation emitting / detecting parts facing the coated electrode sheet; and a controller configured to relatively move the first protective layer parallel to said surface facing the coated electrode sheet, either at a predetermined constant speed or periodically by a preset length.

The invention discloses a fuze anti-interference method, system and device based on random pulse position and frequency agility composite modulation and a medium, and the method comprises the steps: carrying out random pulse position and frequency agility composite modulation on a transmitted sub-pulse signal, and setting basic parameters of a fuze transmitted signal; the fuze transmitting end radiates a transmitting signal, the fuze receiving end captures an echo signal r (t), then the echo signal r (t) is sequentially subjected to frequency mixing and filtering processing, and after the processed echo signal r '(t) enters a specified correlator channel, random pulse position correlation operation and frequency agility correlation operation are respectively carried out to obtain a second-stage output signal of the fuze correlator; performing range gate gating and constant false alarm detection on the second-stage output signal of the fuze correlator in sequence until peak pulses near a preset explosion height are continuously detected for multiple times, and then outputting a detonation signal; according to the invention, random pulse position and frequency agility composite modulation are taken as an inner core, series two-stage related processing is taken as a skeleton, continuous cycle detection is taken as insurance, and a dual anti-interference system with both accuracy and robustness is constructed.

There is disclosed a method of monitoring the functionality of individual irradiation emitters within a UVC irradiation disinfecting device comprising: supplying a constant current supply to at least one irradiation emitter; sensing the voltage across the at least one irradiation emitter; sensing the current drawn by the at least one irradiation emitter; analysing the sensed voltage and the sensed current against predetermined values; and determining a failure state of the at least one irradiation emitter based on said analysis.

The application discloses a shaft current and radiation emission integrated test method and system for an electric drive system, and belongs to the technical field of testing. Through real road working conditions, the method and system realize the synchronous collection of multiple physical quantities of the electric drive system, and combine a high-fidelity digital twin model to perform dynamic correction and simulation analysis, thereby solving the problems of misalignment of data, missing correlation between internal shaft current and external radiation field, and incapability of quantifying the contribution of the shaft current in the traditional test. Therefore, the specific influence of the shaft current in the total radiation emission of the electric drive system can be accurately identified, a quantitative basis is provided for the diagnosis and optimization of electromagnetic compatibility problems, and the efficiency and accuracy of the EMC test and rectification of the electric drive system of the new energy vehicle are improved.

Light source (1) with a radiation emission surface (2), wherein the light source (1) comprises: - a housing part (3) with a receptacle (9), - an organic optoelectronic device (5) arranged in the receptacle (9), and - a cover part (4) connected to the housing part (3), wherein the organic optoelectronic component (5) is held between the cover part (4) and the housing part (3), wherein the light source (1) has one or a plurality of external electrical connection parts (7, 8), and wherein the organic optoelectronic device (5) has a plurality of electrical contacts (21, 22) of the same polarity, wherein the contacts (21, 22) of the same polarity are connected via a connecting conductor of a conductor part (20) to the common external electrical connection part (7, 8) or to one of the plurality of external electrical connection parts (7, 8), wherein the cover part (4) is recessed in a radiation transmission area and wherein the housing part (3) is recessed in an area that overlaps with the radiation transmission area.

A light detection and ranging (LiDAR) device includes a transmitter configured to radiate a transmission signal to a target, an optical element between the transmitter and the target, a receiver, and a circuit. The transmission signal includes a first transmission signal portion and a second transmission signal portion different from the first transmission signal portion. The optical element is configured to modulate the first transmission signal portion with a modulation frequency, and reflect the modulated first transmission signal portion. The receiver is configured to generate a first beat signal by mixing a first reception signal reflected from the target with the transmission signal, and generate a second beat signal by mixing a second reception signal reflected from the optical element with the transmission signal. The circuit is configured to generate a clock signal based on the second beat signal, and correct the first beat signal by using the clock signal.

comprising organic light-emitting component (100) - a substrate (1), - a first electrode (2) which is arranged above the substrate (1), - at least one organic functional layer stack (5) designed to emit radiation and arranged at least above the first electrode (2), - at least one conductive current expansion structure (3) arranged on the first electrode (2) and facing the organic functional layer stack (5), wherein the conductive current expansion structure (3) comprises at least one metal, wherein the conductive current expansion structure (3) has a layered structure (301, 302, 303) comprising two silver layers (301, 303), wherein the two silver layers (301, 303) are separated from each other by another metal layer (302) formed from a metal, wherein the conductive current expansion structure (3) is coated with an inorganic passivation layer (4), wherein the inorganic passivation layer (4) comprises a sulfide of at least one metal of the conductive current-expansion structure (3), wherein the inorganic passivation layer (4) has a layer structure (401, 402, 403) which, where the silver layers (301, 303) are arranged, has silver sulfide, and where the metal layer (302) is arranged, has a sulfide of the metal, wherein the inorganic passivation layer (4) is either an n- or a p-type semiconductor, such that no current flow occurs between the conductive current expansion structure (3) and the organic functional layer stack (5) via the inorganic passivation layer (4), and - a second electrode (6) arranged above the organic functional layer stack (5).

A phosphor has the molecular formula Li8−2x−aMBx+cMFaMC1−c[MAMD4−z−bMEzMGbN4−z+b−cO8+z−b+c]:E, wherein 0≤x≤4, 0≤c≤1, 0≤z≤4, 0≤a≤8, 0≤b≤4, 0≤2x+a≤8, 0≤z+b≤4, −4≤−z+b−c≤4. A method for producing the phosphor, a use of the phosphor, with the molecular formula, are described. Further, an optoelectronic component having a radiation-emitting semiconductor chip and a conversion element is described. The conversion element includes the phosphor with the molecular formula.

Semiconductor component (1) comprising at least one radiation-emitting optical semiconductor chip (11, 12, 13, 14), an integrated circuit (15), and exactly two connection contacts (21, 22), wherein the semiconductor component (1) has a variable emission characteristic which is controlled as a function of a time-varying voltage signal (V1-2) that can be applied to the connection contacts (21, 22) for both data transmission and supply of the semiconductor component (1), and wherein the semiconductor chip (11, 12, 13, 14) has a truncation point (39) at the end of a process (38) and / or the integrated circuit (15) has a truncation point (39) at the end of a process (38).

The invention discloses a novel winding method of a switching power supply high-frequency transformer winding convenient for passing an EMI (Electro-Magnetic Interference) test, which comprises a transformer framework, and a primary coil winding first pin, a primary coil winding second pin and a primary coil winding third pin which are arranged on the transformer framework, a first direction coil is wound from the first pin of the primary coil winding to the second pin of the primary coil winding, a second direction coil is wound from the third pin of the primary coil winding to the second pin of the primary coil winding, and the winding of the first direction coil and the winding of the second direction coil are arranged in opposite directions; the secondary coil is located between the first direction coil and the second direction coil. The reverse coil can significantly improve the radiation EMI effect, the generated common-mode current phase difference forms the vector cancellation effect, the EMI conduction test is facilitated, the effective area of a high-frequency current loop is equivalently reduced through reverse arrangement, particularly, radiation components of 100 MHz or above are significantly suppressed, and the radiation emission level is greatly reduced.

A radiation emitting semiconductor device (1) comprising a semiconductor body with a semiconductor layer sequence (2) is specified, wherein the semiconductor layer sequence (2) comprises an active region configured to emit radiation with a peak emission wavelength in the near-infrared spectral range, and wherein the semiconductor layer sequence (2) comprises an absorber (3) configured to at least partially absorb a shortwave radiation component, the absorber (3) having a cut-off wavelength that is shorter than the peak emission wavelength.

Radiation-emitting semiconductor body (1) with a semiconductor layer sequence (2) comprising an active region (20) intended for generating radiation, an n-conducting region (21), a p-conducting region (22) and a mirror layer (5), wherein - the active region (20) is arranged between the n-conducting region (21) and the p-conducting region (22); - the p-conducting region (22) has a current expansion layer (3) based on a phosphide compound semiconductor material; - the current expansion layer (3) is doped with a first dopant which is incorporated at phosphorus lattice sites, - the first dopant is carbon, - the current expansion layer (3) is lattice mismatched and partially or completely relaxed with respect to a semiconductor material adjacent on a side facing the active region (20), - the p-conducting region (22) between the current expansion layer (3) and the active region (20) has a sub-region (221), wherein the sub-region (221) is p-conducting doped with a second dopant different from the first dopant, - the flow expansion layer (3) is structured in the lateral direction such that it has at least one recess (35) which is completely surrounded in the lateral direction by material of the flow expansion layer (3), - a dielectric layer (55) is arranged locally between the mirror layer (5) and the current-expansion layer (3), which has one or a plurality of openings (550) in which the mirror layer (5) is electrically connected to the current-expansion layer (3), and - which at least one recess (35) and the openings (550) of the dielectric layer (55) are laterally spaced apart from each other.

The invention discloses a large-caliber transmitting and small-caliber receiving type microwave level switch, which comprises an electromagnetic wave transmitting unit, an electromagnetic wave receiving unit and a main arithmetic processor, and is characterized in that the electromagnetic wave transmitting unit comprises an electromagnetic wave radiation transmitting assembly and an electromagnetic wave transmitting waveguide assembly; the electromagnetic wave receiving unit comprises an electromagnetic wave radiation receiving assembly and an electromagnetic wave receiving waveguide assembly, and the main arithmetic processor is electrically connected with the electromagnetic wave radiation receiving assembly; the radiation receiving assembly is configured to receive the electromagnetic wave signal transmitted by the radiation transmitting assembly and convert the electromagnetic wave signal into an electric signal; the transmitting section aperture SF of the transmitting waveguide assembly is larger than the receiving section aperture SS of the receiving waveguide assembly, the ratio of the transmitting section aperture divided by the receiving section aperture ranges from 1.1 to 16, and the section aperture is defined as the diameter of the maximum inscribed circle of the section. The small-caliber receiving unit is used for remarkably reducing the electrical interference influence of non-target electromagnetic waves and other electrical equipment in a measurement environment, and the signal-to-noise ratio is improved.

The invention provides a three-phase rectifier EMI (Electro-Magnetic Interference) characteristic analysis method, which comprises the following steps of: analyzing correlation between EMI characteristics of a three-phase rectifier and high-frequency parasitic parameters RLC (Radio Link Control) in an inductor, a capacitor and a diode contained in the three-phase rectifier, and respectively constructing high-frequency equivalent models of an RLC series-parallel multi-stage resonant structure by combining high-frequency resonance phenomena of the inductor, the capacitor and the diode; each device model is divided into a single-stage equivalent model of a conduction frequency band of 150 kHz to 30 MHz and a multi-stage equivalent model of a radiation frequency band of 30 MHz to 1 GHz; based on the topological structure of the device model, respectively obtaining corresponding impedance expressions associated with the high-frequency parasitic parameter RLC; and constructing a multivariate objective function and solving an optimal solution according to the impedance expression of each device and actually measured data so as to obtain an optimal high-frequency parasitic parameter RLC of each equivalent model, and performing EMI prediction through a time-frequency domain coupled field-circuit collaborative simulation method. According to the invention, the characterization of the impedance characteristic of the device in the broadband range from kilohertz to gigahertz can be realized, and the EMI characteristics of conducted emission (CE) and radiated emission (RE) of the three-phase rectifier can be systematically analyzed.