119 results about "Waveguide channel" patented technology

The present disclosure relates to an antenna layer (1) having a rear face (2) and a front face (3) and a method for producing an antenna layer (1). The antenna layer (1) comprises at least two waveguide channels (4) extending at the rear face (2), each comprising at least one waveguide hole (5) arranged at the front face (3) for transmitting and / or receiving signals. The waveguide channels (4) each comprise at least one radiation opening (6) which is arranged in the antenna layer (1) and which is interconnected to the waveguide aperture (5) by at least one radiation channel (7). A parting line (8) is arranged in the at least one radiation channel (7) between the rear face (2) and the front face (3), which parting line (8) is spaced apart from the at least one radiation opening (6) towards the at least one waveguide hole (5) by a distance (D) and preferably extends circumferentially within the at least one radiation channel (7). The present disclosure also relates to an antenna assembly (17) comprising the antenna layer (1) and an antenna arrangement (23) comprising the antenna assembly (17).

The embodiment of the invention relates to the technical field of semiconductors, and discloses a radio frequency module, radar and electronic equipment, the radio frequency module comprises a chip packaging body, the chip packaging body is provided with at least one radiation part, and a plurality of salient points are arranged around the radiation part and form a first waveguide channel; a second waveguide channel is arranged at the position, corresponding to each first waveguide channel, of the PCB carrier plate; the waveguide antenna is provided with at least one antenna unit and a third waveguide channel; wherein the first waveguide channel, the second waveguide channel and the third waveguide channel are communicated to form a radio frequency signal transmission channel. According to the scheme, the loss of the module on the feeder line can be effectively reduced, and the waveguide antenna is externally connected to the PCB, so that replacement is convenient to realize.

An antenna device for automotive radar applications includes a printed circuit board having a front face and a back face and an electronic component which is interconnected to the printed circuit board and an antenna layer having a front face and a back face, which back face is interconnected to the front face of the printed circuit board. At least one waveguide aperture is interconnected to the front face of the antenna layer and is communicatively connected to the electronic component by at least one waveguide channel, wherein the at least one waveguide channel comprises a conductive surface for guiding an electromagnetic field between the electronic component and is formed by a recess arranged between the back face of the antenna layer and the front face of the printed circuit board.

The invention discloses a waveguide antenna structure and a radar, and relates to the field of waveguide antennas. The antenna structure comprises a first substrate and a second substrate, wherein a waveguide cavity is formed by a first waveguide channel arranged on the bottom surface of the first substrate and a second waveguide channel arranged on the top surface of the second substrate; the top surface of the first substrate is provided with a plurality of rows of radiation slots, and each row of radiation slots is communicated with the corresponding first waveguide channel. The radiation slots comprise a first radiation slot and a second radiation slot; each group of first radiation slots comprises two rows of first radiation slots, a first metal ridge is arranged between two adjacent groups of first radiation slots, and a second metal ridge is arranged on the outer side of the outermost row of first radiation slots; a third metal ridge is arranged between two adjacent rows of second radiation slots, and a fourth metal ridge is arranged on the outer side of the outermost row of second radiation slots. According to the invention, the antenna beam width is widened, the beam is stabilized, and the radar can realize a large detection range.

A flexible waveguide device, of the bellows type, for guiding a radio frequency signal at a given frequency range. The device includes: a core including outer and inner side walls, the inner walls delimiting a waveguide channel; two fixing flanges connected to or integral with respective ends of the core, and at least one flexible corrugated portion formed on a part of the outer side walls of the core and including a plurality of circumferential ribs adjacent to each other. Each rib is devoid of corrugation along its circumference. Also, a method of manufacturing the flexible waveguide device.

The invention relates to the technical field of optical sensing, in particular to a metasurface waveguide array based on a silicon carbide substrate and a spectrum sensing system. The system comprises a coupling modulation module, a waveguide transmission module and a spectral analysis module, the coupling modulation module realizes multi-physical field coupling modulation through a nonlinear coupling superposition principle of a thermo-optical effect and an electro-optical effect; the waveguide transmission module selectively activates waveguide channel combination based on a neural network prediction model and dynamically optimizes transmission parameters through an online reinforcement learning algorithm; the spectral analysis module performs environment compensation correction on the spectral characteristic parameters and outputs a corrected recognition result; according to the invention, multi-physics field coupling modulation, intelligent waveguide channel selection and environment adaptive compensation technologies are innovatively combined, the problems of insufficient precision and poor adaptability of a traditional spectrum sensing system in a complex environment are solved, and high-precision and adaptive spectrum sensing is realized.

A multi-layer waveguide comprising at least three physical layers assembled into a multi-layer waveguide. The layers are a top layer, one or more intermediate layer, and a bottom layer. The multi-layer waveguide further comprises a waveguide channel being an elongated aperture in at least one intermediate layer. At least one layer has a metasurface on a first surface facing a first adjoining layer, wherein the metasurface surrounds the elongated aperture and comprise thick and thin sections.

The invention provides a sound amplification device based on an M-H metamaterial and a sound transmission method using the sound amplification device, the sound amplification device at least comprises an upper shell, a lower shell and a waveguide located between the upper shell and the lower shell, and the waveguide is made of the Mie metamaterial; the waveguide comprises an outer wall, a plurality of sound wave inlets are formed in the outer wall, and the upper shell, the lower shell and the outer wall enclose a waveguide space; a through hole penetrating through the waveguide and the upper shell is formed in the waveguide space, and the through hole is a sound wave outlet in the sound amplification device; the waveguide comprises a plurality of fan parts which are arranged around the through hole in a circumferential radiation manner; a waveguide channel penetrating through the sound wave outlet and the sound wave inlet is formed between the adjacent fan parts; the control current of the sound source is determined by the size of the sound amplifying device and the scattering distribution condition of the sound amplifying device in different resonance modes, the sound at the sound wave outlet is larger than the sound at the sound source in energy level, and an included angle exists in the propagation direction. By determining the control current at the sound source which is most matched with the size of the sound amplifying device, the sound propagation control with low cost, high accuracy and wide application range is realized.

An opto-electronic module and a co-packaged optics device included therein are provided. The co-packaged optics device can include a package substrate; an electronic component disposed on the package substrate; optical transceivers disposed on the package substrate, arranged around the electronic component, wherein the electronic component is electrically connected to the optical transceivers; and a waveguide component disposed on the package substrate. The waveguide component includes a waveguide bulk having an inward surface facing the optical transceivers and an outward surface opposite to the inward surface; a first waveguide channel embedded in the waveguide bulk and extending from the outward surface to the inward surface; and a second waveguide channel embedded in the waveguide bulk and extending from the outward surface to the inward surface, wherein the first waveguide channel and the second waveguide channel are intersected and directed to different ones of the optical transceivers.

The invention discloses a manufacturing method of a high-performance photoelectric co-packaging IC (integrated circuit) carrier board integrated low-loss optical waveguide, belongs to the field of IC packaging carrier boards / PCBs (printed circuit boards), and can greatly reduce optical transmission loss, improve packaging performance and reliability, simplify process flow, improve production efficiency and reduce cost. The method mainly comprises the following steps: substrate selection and pretreatment: selecting a glass substrate with a thickness of 50-100 [mu] m, controlling the thickness of a copper foil on the surface of the glass substrate to be 2-3 [mu] m, and carrying out plasma cleaning by using an Ar / O2 mixed gas; photoresist coating and high-precision patterning: coating the pretreated glass substrate with photoresist, controlling the coating thickness to be 20-50 microns, exposing through an ultraviolet light source, developing through an alkaline developing solution, and etching to form an optical waveguide channel; and optical waveguide material deposition. The manufacturing method is mainly used for manufacturing the low-loss optical waveguide integrated on the photoelectric co-packaged IC carrier plate.

This invention discloses a method and device for detecting the load at the charging port of an electric vehicle charging pile, relating to the field of charging safety technology. The method includes: acquiring an electrical signal from the charging port; extracting a clean load response signal using a quantum noise-resistant processor based on Majorana fermion operators; inputting the clean load response signal into a pulse neural network autoencoder to generate a neural pulse sequence through a pulse firing mechanism; performing time-frequency domain transformation on the neural pulse sequence to reconstruct a complex impedance tensor, and solving the eigenvalue sequence of the complex impedance tensor; embedding the eigenvalue sequence into a five-dimensional anti-de Sitter space boundary based on the AdS / CFT duality principle, and generating a three-dimensional holographic tomographic map by solving the Einstein field equations relating the volume to the boundary; this invention achieves topological separation of noise and load signal through a Majorana zero-mode waveguide channel, solving the problem of insufficient high-frequency noise suppression in dynamic load scenarios.

The invention discloses an adjustable automatic inflatable pressure injury prevention air cushion for newborns, which belongs to the technical field of air cushions for newborns and comprises a separation air bag, mirror image adjustment air cushions capable of forming pressure difference feedback are arranged on two sides of the separation air bag, a first bidirectional air pump is arranged in the separation air bag, and a second bidirectional air pump is arranged in the separation air bag. The two adjusting air cushions and the outside form a differential inflation and deflation loop through a first two-way air pump. The first waveguide channel comprises massage air bags which are arranged at the top of the adjusting air cushion in an array mode and are connected in series through air paths in the width direction, and infrared sensors are arranged in the massage air bags. By arranging the adjusting air cushions, the massage air bags and the transition air bags, precise turning over can be conducted by inflating and deflating the adjusting air cushions on the two sides at the same time, skin pressure injuries caused by pressure concentration of the pressure face after turning over can be effectively avoided, and therefore the adaptability of the device and the effect of preventing the pressure injuries are effectively improved.

The invention discloses a 3D waveguide type multi-core optical fiber link monitor which comprises an optical chip platform with n layers of stacked waveguide structures and a photoelectric detector, n is larger than or equal to 2, and the number n of waveguide layers of the optical chip platform is equal to the number of layers of connected multi-core optical fibers. The cross section distribution of waveguides in the optical chip platform and the cross section distribution of fiber cores of the multi-core optical fiber are the same and are in one-to-one correspondence; a waveguide channel corresponding to each fiber core of the multi-core optical fiber in the optical chip platform comprises an optical fiber signal coupling fan-out module, an optical signal beam splitting module, an optical signal monitoring module and a multi-core optical fiber signal coupling fan-in module which are connected in sequence; after an optical signal of a multi-core optical fiber transmitting end is coupled by the fan-out module, a small part of the signal is separated by the beam splitting module through a waveguide coupling effect and is used for monitoring, and most of the signal is transmitted back to a transmission link through the fan-in module; and the monitoring module realizes real-time detection through a photoelectric detector. According to the invention, no extra optical fiber fan-in / fan-out module is needed, the insertion loss is low, and the device is not sensitive to polarization.

A microwave waveguide of unitary construction comprising integrated reinforcing ribs or protrusions 124 and cooling pipes 122. The reinforced ribs extend along the waveguide in a direction parallel to

The invention belongs to the technical field of terahertz biological sample sensing detection and analysis, and relates to a system and a method for testing a terahertz characteristic spectrum of a sample based on a closed microflow waveguide channel, in particular to a method for testing the characteristic spectrum of a liquid biological sample in a terahertz frequency band. The method comprises the following steps: firstly, carrying out an experiment by using a blank solution without a biological sample, and measuring the signal response of the blank solution in a terahertz wave band to obtain a corresponding background characteristic spectrum; then sample liquid containing the biological sample is conveyed into the waveguide, a total characteristic spectrum containing the biological sample and blank liquid is obtained, the measured change of the total characteristic spectrum relative to a background characteristic spectrum is biological sample characteristic information, and a net characteristic spectrum of the biological sample is obtained through calculation by means of a difference algorithm or a neural network or other methods; the terahertz characteristic spectrum is the terahertz characteristic spectrum of the biological sample. The invention provides a high-efficiency, stable and low-cost biological sample terahertz detection scheme for biological detection by using terahertz waves, and has the advantages of high feasibility, multiple method variety selections and the like.

A multilayer waveguide (1) comprises at least three physical layers (21, 2a, 2b, 2c, ..., 2n, 22) assembled into the multilayer waveguide (1). The layers are a top layer (21), one or more intermediate layers (2a, 2b, ..., 2n) and a bottom layer (22). The multilayer waveguide (1) further comprises a waveguide channel (77), which is an elongated hole (7) in at least one of the intermediate layers (2a, 2b, ..., 2n). At least one layer (21, 2a, 2b, ..., 2n, 22) has a metasurface (3) on a first surface (5a) facing a first adjacent layer, wherein the metasurface (3) surrounds the elongated hole (7) and comprises a thick portion (3a) and a thin portion (3b).

The invention relates to the technical field of waveguide microwave probes, in particular to a terahertz-band waveguide microwave probe with a waveguide-coaxial conversion structure, which comprises an elastic needle tip, the elastic needle tip is positioned outside a waveguide cavity and is connected with one end of a coaxial cable, the other end of the coaxial cable is connected with a waveguide ball, and the waveguide ball is connected with the waveguide cavity. The coaxial cable extends into the main body from the outside of the waveguide cavity, a waveguide channel is arranged in the waveguide cavity, and the small waveguide ball is arranged at one end of the waveguide channel. The elastic needle point is connected to one end of the coaxial cable and is mainly used as a detection needle point to transmit a signal to the coaxial cable, and the other tail end of the elastic needle point is connected with the small waveguide ball and goes deep into the waveguide cavity to transmit a coaxial line signal to an internal waveguide channel.

The application provides a cooking assembly and a microwave oven. The cooking assembly is applied to the microwave oven. The cooking assembly has a cooking cavity. A cavity bottom wall of the cooking cavity is formed with a plurality of first microwave feed openings. The cooking assembly comprises a microwave generator and a waveguide channel. The microwave generator is used to generate microwaves. The waveguide channel is used to conduct the microwaves generated by the microwave generator to the cooking cavity through the plurality of first microwave feed openings. The waveguide channel comprises a plurality of standing waves arranged along the propagation direction of the microwaves. The cavity bottom wall is equally divided into a plurality of sub-zones along the propagation direction of the microwaves. The number of the sub-zones is the same as the number of the standing waves. At least one first microwave feed opening is arranged in each sub-zone. The center of each sub-zone is taken as the origin of the corresponding four quadrants. The first microwave feed openings of two adjacent sub-zones are arranged in pairs. The absolute value of the difference between the number of the quadrants in the sub-zone where the same pair of the first microwave feed openings is arranged is 2. The cooking assembly and the microwave oven provided by the application can improve the radiation efficiency.

The utility model provides a photoelectric module and a co-packaging optical device comprising the same. A co-packaged optical device may include a package substrate; the electronic component is arranged on the packaging substrate; the optical transceiver is arranged on the packaging substrate and arranged around the electronic component, and the electronic component is electrically connected with the optical transceiver; and a waveguide member disposed on the package substrate. The waveguide member includes a waveguide block having an inward surface facing the optical transceiver and an outward surface opposite the inward surface; the first waveguide channel is embedded in the waveguide block and extends from the outward surface to the inward surface; and a second waveguide channel embedded in the waveguide block and extending from the outward-facing surface to the inward-facing surface, wherein the first waveguide channel intersects the second waveguide channel and is directed toward a different one of the optical transceivers.

The present disclosure relates to a multi-layer waveguide transition (100), an inter-waveguide transition (101), and a waveguide T-junction (103). The waveguide transition (100) comprises a top layer (1), at least one intermediate layer (2, 201, 202) and at least one bottom layer (3), where the at least one intermediate layer (2, 201, 202) comprises an elongated waveguide channel (21), and a metasurface (4) is arranged around the elongated waveguide channel (21), the metasurface (4) being arranged between the top layer (1) and the at least one intermediate layer (2, 201, 202) and between the bottom layer (3) and the at least one intermediate layer (2, 201, 202). In addition, the waveguide transition (100) comprises a port opening (31) arranged in the bottom layer (3), which port opening overlaps the coupling portion (C) of the elongated waveguide channel (21), and a central conductor arranged in the elongated waveguide channel (21).

The utility model provides a multimode resonant waveguide slot antenna structure and a waveguide radar, and the structure comprises a waveguide antenna which is provided with a waveguide channel; the waveguide channel comprises a waveguide input cavity, a waveguide power division cavity, a waveguide extension cavity and a multimode coupling window; the waveguide input cavity is vertically connected with the waveguide power division cavity; the plurality of waveguide extension cavities are in offset connection with the two ends of the waveguide power division cavity respectively, the waveguide power division cavity and the waveguide extension cavities are communicated through the multimode coupling window, and the opening of the multimode coupling window is smaller than the widths of the waveguide power division cavity and the waveguide extension cavities; and a plurality of radiation slots penetrate through the top of the waveguide channel. According to the utility model, the multimode coupling window is additionally arranged between the waveguide power division cavity and the waveguide extension cavity, and the opening width of the multimode coupling window is smaller than the widths of the waveguide power division cavity and the waveguide extension cavity, so that a dual-mode or multimode resonant mode is excited, and the bandwidth is greatly broadened; and the increase of manufacturing difficulty and cost caused by a complex power division structure or a power division network in the structural design is also avoided.

The utility model relates to a three-dimensional tunable coupling packaging structure based on a PPLN waveguide device. The three-dimensional tunable coupling packaging structure comprises a waveguide device internally provided with an installation cavity, a waveguide chip fixedly assembled in the installation cavity, and an optical fiber patch cord connector movably assembled in the installation cavity. The waveguide chip is provided with at least two waveguide channels, and the waveguide channels correspond to different polarization periods; and a position adjusting mechanism used for adjusting the position of the optical fiber patch cord connector so as to enable the axis of the optical fiber patch cord connector to be coaxially matched with each waveguide channel in a one-to-one manner to realize coupling is arranged in the mounting cavity. A user can realize matching wavelength adaptation in a larger range under the condition that a waveguide device is not replaced; therefore, high-conversion-efficiency output light of the corresponding matched wavelength is realized.

The utility model relates to the technical field of electromagnetic isolation efficient waveguide ventilation, in particular to an electromagnetic isolation efficient waveguide ventilation structure convenient to disassemble and assemble, which comprises a waveguide ventilation structure main body. The waveguide ventilation structure comprises a waveguide ventilation structure body and further comprises an isolation cover, a waveguide window assembly, a sealing ring and a connecting assembly, a mounting hole is formed in the lower end of the waveguide ventilation structure body, the isolation cover is fixed to the upper end of the waveguide ventilation structure body, a mounting window is formed in the lower end of the waveguide ventilation structure body, and the waveguide window assembly is connected to the inner side of the mounting window; according to the utility model, through precise sleeving of the waveguide window sleeve and the mounting window and stable connection of the limiting base and the bolt, the waveguide channel can be rapidly disassembled and assembled, and through arrangement of the copper foil electromagnetic isolation layer and the hexagonal waveguide channel, external electromagnetic interference is blocked while ventilation requirements are effectively guaranteed, and the ventilation effect is improved. The waveguide ventilation structure is convenient to disassemble and assemble, so that a user can operate more conveniently, the maintenance difficulty is effectively reduced, and the user experience is improved.

An integrated digital RF circuit system includes: a substrate, the substrate including a substrate integrated waveguide, the substrate integrated waveguide including a waveguide width, a first plurality of vias and a second plurality of vias; and a source circuit board including a waveguide channel, wherein: the waveguide channel is at least partially positioned between the first plurality of vias and the second plurality of vias; the waveguide channel defines a channel length and a channel width; the channel length is greater than the channel width; and the channel length is greater than the waveguide width.

The invention provides a topological interference power divider, a power control method and related equipment. The topological interference power divider comprises a dielectric substrate; the upper copper layer and the lower copper layer are arranged on the surface of the dielectric substrate; the valley photonic crystal structure is composed of triple symmetric apertures of periodic triangular lattices etched on the upper copper layer; the structure comprises A-type unit cells and B-type unit cells which are alternately arranged, the topological waveguide channel is a domain wall formed by the interface of the A-type unit cell and the B-type unit cell, and the channel comprises a plurality of branches which are intersected in a central area to form a coherent interference area; the input port and the output port are respectively arranged at the head end and the tail end of the topological waveguide channel; a matching network is arranged between each port and the channel and is used for realizing conversion between a conventional guided wave mode and a topological edge state; the modulation of the output power distribution ratio, the central working frequency or the transmission bandwidth of the topological interference power divider can be realized by regulating and controlling the topological edge state in the coherent interference region, and the flexibility and the reconstruction capability of power distribution are improved.

The invention discloses cooking equipment, which comprises an inner container, a plurality of microwave feed ports, a plurality of heating devices, a plurality of heating devices, a plurality of heating devices and a plurality of heating devices, and is characterized in that a cooking space is limited by the inner container and is provided with a plurality of microwave feed ports; a microwave feed-in port is formed in the waveguide piece, a microwave generator and a waveguide piece are arranged in the waveguide piece, a waveguide channel is defined in the waveguide piece, the waveguide channel is provided with a microwave inlet end matched with the microwave generator, the waveguide channel is further provided with a microwave outlet, and the microwave feed-in port is communicated with the microwave outlet; a part of the microwave feed inlet is provided with the water box, at least part of the water box is located in the waveguide channel so that microwaves can heat liquid in the water box, the water box is provided with an air outlet, and the air outlet is communicated with the cooking space. According to the cooking equipment provided by the invention, microwaves are divided into multiple strands to enter the cooking space from different microwave feed inlets to heat food, so that the uniformity of microwave distribution in the cooking space is improved; and the microwave can heat water in the water box into steam to moisturize the food, so that the problem that the food is easy to dry is solved.

This invention discloses an ultra-low residual amplitude modulation waveguide-optical phase modulator, comprising a first electrode layer and a second electrode layer parallel to each other. An α-phase waveguide channel and a substrate layer are disposed between the first and second electrode layers. The optical axes of the α-phase waveguide channel and the substrate layer are both perpendicular to the plane of the first electrode layer. The difference between the thermo-optical coefficient of the α-phase waveguide channel and the thermo-optical coefficient of the substrate layer is less than a preset thermo-optical coefficient difference threshold. Part of the side of the α-phase waveguide channel is covered by the substrate layer. The electric field between the first and second electrode layers uniformly covers the entire α-phase waveguide channel and the substrate layer. The two ends of the α-phase waveguide channel serve as the input and output ends of the light beam, respectively. This invention, by changing the electric field application method and thermo-optical coefficient matching, fundamentally maintains the consistency of the interference phase, thereby significantly reducing the sensitivity of RAM signals to voltage and ambient temperature fluctuations.

A method for manufacturing a radar sensor. In the method, a circuit board is provided. A surface of the circuit board is equipped with a radar transceiver. A waveguide structure made of plastic material is provided. Waveguide channels including at least one metallic conductively coated side wall in the waveguide structure and an open side are formed. The waveguide structure is soldered to a surface of the circuit board, the open side being oriented in the direction of the circuit board.

This invention relates to the field of optical sensing technology, and more particularly to a metasurface waveguide array and spectral sensing system based on a silicon carbide substrate. The system includes a coupling modulation module, a waveguide transmission module, and a spectral analysis module. The coupling modulation module achieves multi-physics coupling modulation through the nonlinear coupling superposition principle of thermo-optic and electro-optic effects. The waveguide transmission module selectively activates waveguide channel combinations based on a neural network prediction model and dynamically optimizes transmission parameters through an online reinforcement learning algorithm. The spectral analysis module performs environmental compensation correction on spectral feature parameters and outputs the corrected recognition results. This invention innovatively combines multi-physics coupling modulation, intelligent waveguide channel selection, and environmental adaptive compensation technology, solving the problems of insufficient accuracy and poor adaptability of traditional spectral sensing systems in complex environments, and achieving high-precision, adaptive spectral sensing.

An antenna device (1) including a printed circuit board (2) and a thereon arranged electronic component (3). The antenna device (1) includes at least two individual antenna elements (12) which are interconnected to the electronic component (3) configured to transmit and receive a signal. The antenna elements (12) each include at least one waveguide channel (9) interconnecting in the antenna assembly (6). A first waveguide aperture (10) is arranged at a back face (16) of the antenna assembly (6). The first waveguide aperture (10) is interconnected to the electronic component (3) and configured to transmit and / or receive a signal. A second waveguide aperture (11) is arranged at a front face (17) of the waveguide assembly (6) and is also configured to transmit and / or receive a signal.