64 results about "Slot-waveguide" patented technology

The invention relates to the technical field of antennas, in particular to a dual-mode high-gain millimeter wave beam scanning antenna, which comprises a bottom layer dielectric substrate, a first excitation port and a second excitation port are arranged at two ends of the bottom layer dielectric substrate; the top-layer dielectric substrate comprises a +-shaped dielectric covering layer arranged at the top of the bottom-layer dielectric substrate; two ends of the parallel plate slot waveguide are respectively connected with the first substrate integrated waveguide horn and the second substrate integrated waveguide horn; two ends of the first waveguide transition structure are respectively connected with the first excitation port and the first substrate integrated waveguide horn; two ends of the second waveguide transition structure are respectively connected with the second excitation port and the second substrate integrated waveguide horn; according to the invention, large-range beam scanning including backward end radiation can be realized, high-gain single-beam scanning is maintained, the antenna has the characteristics of simple structure, easy integrated processing, high gain and full coverage of the upper half space, and the performance of a millimeter wave wireless communication system is greatly improved.

The utility model discloses a millimeter wave radar microstrip-to-gap waveguide structure, which comprises a PCB (printed circuit board), a microstrip line is arranged on the PCB, one end of the microstrip line is connected with a radiation patch, and the radiation patch is connected with a waveguide structure; the waveguide structure comprises a copper sheet layer arranged on the PCB, a metal plate opposite to the PCB, a trapezoidal column and a plurality of metal columns, wherein the trapezoidal column and the metal columns are arranged on the metal plate. The end face, away from the metal plate, of the trapezoidal column makes contact with the radiation patch. The metal columns are arranged on the two sides of the trapezoidal column, located on the two sides of the microstrip line and symmetrically distributed on the two sides of the trapezoidal column. According to the millimeter wave radar microstrip-to-gap waveguide structure provided by the utility model, by arranging the trapezoidal column in contact with the radiation patch, quasi-TEM waves of radiation signals of the microstrip patch are converted into TE (10) waves of a waveguide, and then the TE (10) waves are transmitted through the waveguide formed by the microstrip-to-gap waveguide structure of the scheme. Therefore, the conversion from the on-board microstrip radio frequency signal to the one-layer waveguide signal is realized.

The invention discloses a high-power microwave waveguide slot antenna array, and aims to solve the problem that a rectangular waveguide slot antenna cannot radiate at an extreme temperature. The antenna is composed of a vacuum window sealing power divider, a separation waveguide, N groups of flanges, N bent waveguides and N high-power microwave rectangular waveguide slot antennas with dielectric covers. The vacuum window sealing power divider carries out power division on microwaves and then inputs the microwaves into the separation waveguides, the separation waveguides input the N groups of microwaves into the N rectangular waveguide slot antennas with the dielectric covers through the N groups of flanges and the bent waveguides, and then the microwaves are radiated out. The vacuum window sealing power divider is composed of a power divider main body, a welding cover, a sealing plate and a medium window. The separating waveguide is composed of a connecting plate and a separating plate. The bent waveguide is composed of a vertical waveguide and a horizontal waveguide. The high-power microwave rectangular waveguide slot antenna with the dielectric cover is composed of the dielectric cover, a slotted waveguide, a supporting column and a supporting rod. The invention has the advantages of compact structure and large power capacity, and can be applied in extreme temperature.

The application relates to the technical field of antennas, in particular to a dual-mode high-gain millimeter wave beam scanning antenna, which comprises a bottom dielectric substrate provided with a first excitation port and a second excitation port at two ends; a top dielectric substrate comprising a '+'-shaped dielectric cover layer arranged on the top of the bottom dielectric substrate; parallel plate slot waveguides connected with a first substrate integrated waveguide horn and a second substrate integrated waveguide horn at two ends respectively; a first waveguide transition structure connected with the first excitation port and the first substrate integrated waveguide horn at two ends respectively; and a second waveguide transition structure connected with the second excitation port and the second substrate integrated waveguide horn at two ends respectively. The application can realize wide-range beam scanning including backward end radiation, meanwhile, high-gain single beam scanning is maintained, the application has the characteristics of simple structure, easy integration and processing, high gain and full coverage of the upper half space, and greatly improves the performance of a millimeter wave wireless communication system.

The utility model discloses a slot waveguide array antenna attached to the outer side of an elastic wall. The slot waveguide array antenna comprises a protection base embedded in the elastic wall and an antenna substrate attached to the outer side of the elastic wall. The bottom of the antenna substrate is welded with a connecting socket, the connecting socket is inserted into the protection base, one side of the upper surface of the antenna substrate is provided with an inclined chamfer, and the upper surface of the antenna substrate is provided with slot guided waves. The utility model provides a detection antenna which is suitable for being used on a missile, can save the space of the whole missile, is high in performance and narrow in radiation pattern of a pitching surface, and in order to improve the available design space of the antenna, reduce the design difficulty and save the space of the whole missile, a transmitting-receiving antenna which is conventionally arranged on the inner side of the missile wall and is conformal with the missile wall is improved into a transmitting-receiving antenna which is attached to the outer side of the missile wall. The available design space of the antenna is increased to a great extent by arranging the antenna on the outer side of the missile wall, so that the design difficulty is reduced, the antenna performance is improved, and the whole missile space is saved.

The invention discloses a conversion structure of an E-plane waveguide feeder line and a deep-groove waveguide feeder line, which comprises the E-plane waveguide feeder line, the deep-groove waveguide feeder line and a transition structure, and is characterized in that the E-plane waveguide feeder line and the deep-groove waveguide feeder line are perpendicular to each other; wherein the deep groove waveguide feeder line is higher than the E-plane waveguide feeder line, one end of the E-plane waveguide feeder line and one end of the deep groove waveguide feeder line are partially overlapped to form a transition through hole, and the transition structure is arranged at one end, connected with the E-plane waveguide feeder line, of a spacer of the deep groove waveguide feeder line. The E-plane waveguide feed line is adopted, the characteristic that the middle current is zero is utilized, electromagnetic wave leakage cannot be caused due to separation, electromagnetic waves can be converted to the deep groove waveguide feed line, electromagnetic wave conversion can be achieved without welding, the turning structure of the feed network is placed on the E-plane feed line, and the feed line of the radiation structure is achieved through the deep groove waveguide. And a transition structure between the two feeder lines is designed, so that high-efficiency conversion of the two feeder line modes is realized.

The present invention discloses a mid-infrared gas sensor based on a tapered sub-micron grating-slot waveguide, which includes a lower cladding, a first tapered grating array and a second tapered grating array. The first tapered grating array and the second tapered grating array are arranged on the upper surface of the lower cladding. The first tapered grating array is located on the front side of the second tapered grating array. The first tapered grating array is formed by 5566 identical first core layer waveguides evenly spaced in sequence from left to right. The second tapered grating array is formed by 5566 identical second core layer waveguides evenly spaced in sequence from left to right. Both the first core layer waveguide and the second core layer waveguide are tapered waveguides, and the upper and lower sides of the first core layer waveguide and the second core layer waveguide are both isosceles trapezoids. The advantages are high sensitivity, low detection threshold and fast response time.

The present invention discloses a millimeter-wave microstrip antenna unit and an array antenna fed by a slot waveguide. The antenna unit includes a metal bottom plate, and a plurality of metal pins are formed on the upper surface of the metal bottom plate. A ridge slot waveguide is formed between the metal pins near the middle. An upper metal plate is disposed on the upper surface of the metal pins. A coupling hole is formed at the center of the upper metal plate, and the inner end of the ridge slot waveguide is located below the coupling hole. A dielectric layer is formed on the upper surface of the upper metal plate, and a plurality of radiation patches are formed on the upper surface of the dielectric layer. The radiation patches are interconnected by microstrip lines, and the microstrip lines are located above the coupling hole. The array antenna has the advantages of convenient mechanical assembly, low cost, high gain, etc.

The utility model relates to a transportation system which is provided with a moving device capable of moving along a driving road section, in particular a track, a slotted waveguide of the transportation system and the driving road section are arranged in parallel for high-frequency data transmission, and the slotted waveguide surrounds a cavity. The utility model relates to a mobile device for a motor vehicle, in particular a motor vehicle, comprising a slotted waveguide having a cavity which opens into the environment via a slot of the slotted waveguide which runs through in the direction of a travel route, in particular in the direction of a track, the mobile device having an antenna which projects through the slot of the slotted waveguide into the cavity of the slotted waveguide, in particular for inputting or outputting electromagnetic waves, the slotted waveguide being made of a steel sheet as a bent part.

The utility model relates to the technical field of terahertz radio frequency circuits, solves the technical problems of narrow relative bandwidth and complex processing of a terahertz frequency band waveguide duplexer, and particularly relates to a terahertz multistage coupling type duplexer easy to realize by CNC (computer numerical control). Comprising a duplexer main body structure which is formed by separably combining an E-plane slotted waveguide structural body A and an E-plane slotted waveguide structural body B. The duplexer main body structure is formed by cascading an E-plane Y-type junction with two filters and is provided with an input waveguide, a low-frequency output waveguide and a high-frequency output waveguide. Compared with a traditional T-shaped junction, the T-shaped junction is more suitable for the design of a broadband waveguide duplexer, and the compactness and simplicity of the structure are kept. Actual measurement shows that 24% of total working bandwidth is obtained, and the overall performance of a terahertz communication system is further improved.

The present invention discloses a radio frequency transmit and receive assembly kit comprising a slotted waveguide antenna assembly (100) wherein the slotted waveguide antenna assembly (100) comprises a plurality of sets of slotted waveguide antennas wherein each of the plurality of sets of slotted waveguide antennas comprises antenna feed elements forming a set of a plurality of antenna feed elements; and a circuit arrangement (306) for transmitting and receiving radio frequency (RF) signals wherein the circuit arrangement further comprises one or more circuit connection elements adapted to form an RF feed connection with an antenna feed element of the plurality of antenna feed elements, the slotted waveguide antenna assembly is mountable to the circuit arrangement in a plurality of different orientations, where, in each orientation, a particular one of the antenna feed elements forms an RF feed connection with a respective one of the circuit connection elements.

The application belongs to the technical field of millimeter wave transmission, and discloses a zero-point adjustable low-loss dual-frequency filter based on a printed ridge gap waveguide, which comprises two waveguide resonant cavities with printed ridge gaps arranged in a center-symmetrical and back-to-back mode along a vertical axis and a shared ground metal plate, the shared ground metal plate is arranged between the two waveguide resonant cavities, a rectangular slot is etched on the shared ground metal plate, the waveguide resonant cavity comprises an upper artificial magnetic conductor layer, a transmission layer and a lower artificial magnetic conductor layer, a resonant column is arranged through the upper and lower artificial magnetic conductor layers and the transmission layer, the resonant column is connected with upper and lower metal ground plates, resonance is generated through the resonant column, a slow wave structure is arranged in the middle of the lower artificial magnetic conductor layer, the transmission layer is connected with a microstrip line, and the microstrip line and the lower artificial magnetic conductor layer are connected through a slow wave through hole. The length and width of the resonator are changed, the electromagnetic mixed coupling mode is adjusted by changing the size and position of the rectangular slot, and the zero-point is adjusted.

The present invention addresses the problem of providing: an optical modulation device that has a protective layer which exhibits good adhesion to an electro-optic material that contains a liquid crystal compound; and a method for manufacturing an optical modulation device. An optical modulation device according to the present invention comprises: a substrate; a slot waveguide in which an electro-optic material that contains a liquid crystal compound is present between two electrodes disposed on the substrate; and a protective layer that covers the surface of the electro-optic material which is present in the slot waveguide. The protective layer is obtained by curing a composition that satisfies at least one of the following conditions 1 and 2.　Condition 1: The composition contains a compound A that has an acidic group and a crosslinking group.　Condition 2: The composition contains a compound B that has an acidic group and does not have a crosslinking group, and a compound C that has a crosslinking group and does not have an acidic group.

The application discloses a high-power microwave waveguide slot antenna array, and aims at solving the problem that a rectangular waveguide slot antenna cannot radiate in extreme temperature. The application is composed of a vacuum window sealed power divider, a partition waveguide, N sets of flanges, N curved waveguides and N high-power microwave rectangular waveguide slot antennas with dielectric covers. The microwave is divided by the vacuum window sealed power divider and then input into the partition waveguide, the N sets of microwaves are transmitted through the N sets of flanges and the curved waveguides, and then input into the N high-power microwave rectangular waveguide slot antennas with dielectric covers, and finally radiated. The vacuum window sealed power divider is composed of a power divider main body, a welded cover, a sealing plate and a dielectric window. The partition waveguide is composed of a connecting plate and a partition plate. The curved waveguide is composed of a vertical waveguide and a horizontal waveguide. The high-power microwave rectangular waveguide slot antenna with the dielectric cover is composed of a dielectric cover, a slotted waveguide, a support column and a support rod. The application has the advantages of compact structure, large power capacity and application in extreme temperature.

Technologies for a strong rare-earth-ion interactions are disclosed. In the illustrative embodiment, a heterogeneous slot waveguide is formed with two layers of silicon surrounding a layer of Er:Y2O3, resulting in a waveguide that supports a TM mode with a strong confinement of electromagnetic field near the erbium dopants. The strong concentration of electromagnetic field and small mode volume allows for strong interactions between optical fields and the erbium dopants. In some embodiments, the slot waveguide structure may be configured as a microring resonator or a photonic crystal, resulting in small-mode-volume resonators with high Q-factors. In some embodiments, strong electro-optic and / or acousto-optic coupling may be achieved, resulting in quantum transducer able to coherently convert between signals in different systems.

An optical waveguide element according to one embodiment incudes a substrate; a strip waveguide portion formed in a first layer located above the substrate; a slot waveguide portion formed in a second layer located above the substrate and different from the first layer; and a mode conversion portion connected between the strip waveguide portion and the slot waveguide portion. The mode conversion portion includes a first optical confinement portion formed in the first layer and connected to the strip waveguide portion, and a pair of second optical confinement portions formed in the second layer and connected to the slot waveguide portion. A width of the first optical confinement portion decreases as the first optical confinement portion approaches the slot waveguide portion from the strip waveguide portion. The first optical confinement portion is included inside the pair of second optical confinement portions in a plan view of the substrate.

The present invention relates to a communication system for communicating between at least one vehicle (4; 5) and a fixed-position base station (6), wherein the at least one vehicle travels along a predetermined motion trajectory, wherein the communication is performed using a slot waveguide (1) extending parallel to the motion trajectory of the vehicle (4; 5), wherein at least one antenna (16A, 16B; 17A, 17B; 18A, 18B) connected to a transmitting and receiving device (10; 11; 12) of the fixed-position base station (6) and at least one antenna (21A, 21B; 22A, 22B) of the vehicle (4; 5) extend into the slot waveguide, wherein when the vehicle (4; 5) moves, the antenna (21A, 21B; 22A, 22B) of the vehicle (4; 5) extends along the slot waveguide (1). The slot waveguide (1) moves in the longitudinal direction, the slot waveguide (1) comprises at least two sections (1A; 1B; 1C; 1D) separated from each other by gaps (7; 8; 9), each section (1A; 1B; 1C; 1D) of the slot waveguide (1) is provided with at least one antenna (16A, 16B; 17A, 17B; 18A, 18B) extending into the corresponding section (1A; 1B; 1C; 1D), and two mutually adjacent antennas (16A, 16B; 17A, 17B; 18A, 18B) extending into different sections (1A; 1B; 1C; 1D) of the slot waveguide (1) are respectively coupled via coupling devices (13; 14; 15) not only to the common transmitting and receiving device (10; 11; 12) of the fixed base station (6), but also to each other.

The application provides a resonator and a photonic chip, comprising: a micro-ring waveguide and a straight waveguide, a coupling section of the straight waveguide and the micro-ring waveguide, in the coupling section, the straight waveguide and the micro-ring waveguide have the same waveguide structure, the waveguide structure comprises: a first waveguide arm and a second waveguide arm, and there is a radiation slot between the first waveguide arm and the second waveguide arm; a side of the first waveguide arm facing the radiation slot is provided with a plurality of first grating slots arranged along the extension direction of the radiation slot; a side of the second waveguide arm facing the radiation slot is provided with a plurality of second grating slots arranged along the extension direction of the radiation slot; and the first grating slots and the second grating slots are one-to-one aligned. Thus, the second waveguide arm and the first waveguide arm in the waveguide structure of the coupling section can constitute a subwavelength grating slot waveguide with a continuous outer boundary. Since the outer boundary is continuous, mode disturbance and sidewall scattering can be effectively suppressed, so that the scattering loss of the resonator can be significantly reduced.

A fill level measuring device for measuring the fill level of a liquid in a tank of a vehicle includes a multiband slotted waveguide antenna to be attached in the upper region of the tank, the antenna having a waveguide and multiple slots spaced apart, which are dimensioned differently, so that they have different resonance frequencies, to respectively emit radar waves having different frequencies. At least one radar transmitter can be coupled to the waveguide to feed the multiband slotted waveguide antenna with radar waves having the different resonance frequencies, and at least one radar receiver is provided for receiving reflected radar waves of different frequencies via the multiband slotted waveguide antenna. An evaluation unit is provided for detecting the fill level and the spatial distribution of the liquid in the tank based on the reflected radar waves.

The utility model discloses a gas detection optical path structure and gas detection sensor wherein the gas detection optical path structure comprises: a reference optical path with a first optical waveguide and a detection optical path with a second optical waveguide, on the optical transmission path, the first optical waveguide comprises a directional coupling part and a reference part in order, and the detection optical path comprises a second optical waveguide. The second optical waveguide sequentially comprises an optical coupling part, a transmission part and a detection part; the reference part and the detection part are slot waveguides; the optical coupling part is used for coupling a laser beam, the input end of the transmission part is connected with the optical coupling part and is used for receiving the laser beam, the directional coupling part is coupled with the transmission part and is used for coupling a reference beam, and the output end of the transmission part is connected with the detection part and is used for outputting a detection beam; the reference part is located in a reference gas environment and is used for outputting a reference test light beam; the detection part is located in the detection gas environment and used for outputting the detection test light beam, and the accuracy of the detection result is improved.

This document describes a slot waveguide modulator that utilizes both silicon photonics and electro-optic materials to achieve high bandwidth, high efficiency and low optical loss. The slot waveguide modulator has an electro-optic layer that is sandwiched between two mode stopper layers, where the mode stopper layers are formed in waveguide layers having a refractive index that is higher than the refractive index of the electro-optic layer.

The present invention provides an optical waveguide element capable of performing mode conversion between a strip waveguide section and a slot waveguide section, which have different layers. [Solution] An optical waveguide element according to one embodiment comprises a substrate, a strip waveguide portion formed in a first layer located above the substrate, a slot waveguide portion formed in a second layer located above the substrate and different from the first layer, and a mode conversion portion connected between the strip waveguide portion and the slot waveguide portion. The mode conversion portion includes a first optical confinement portion formed in the first layer and connected to the strip waveguide portion, and a pair of second optical confinement portions formed in the second layer and connected to the slot waveguide portion. The width of the first optical confinement portion decreases as it approaches the slot waveguide portion from the strip waveguide portion. The pair of second optical confinement portions include the first optical confinement portion on the inside in a plan view of the substrate.

The disclosure provides an on-chip polarization beam splitter based on a double-slot waveguide, comprising a substrate, two core waveguides and three restriction waveguides. The three restriction waveguides are arranged alternately with the two core waveguides, and there are hollow slots between two adjacent waveguides; the first core waveguide, the first restriction waveguide, the second restriction waveguide and the two hollow slots between adjacent waveguides together constitute a first double-slot waveguide; the second core waveguide, the second restriction waveguide, the third restriction waveguide and the two hollow slots between adjacent waveguides together constitute a second double-slot waveguide. The double-slot waveguide structure has a strong polarization-dependent mode field distribution regulation characteristic, which can directly separate the fundamental transverse electric mode and the fundamental transverse magnetic mode to different waveguides without the help of high-order mode conversion, avoiding mode conversion loss; the polarization beam splitter provided by the disclosure has the advantages of small coupling loss, short coupling distance, high polarization extinction ratio and simple preparation process while realizing effective polarization beam splitting, which is beneficial to compact and large-scale photonic integration applications.

This application discloses an optofluidic chip, a computing device, and a photosensitive sensor. The optofluidic chip includes a substrate, a slit waveguide with nano-slits, a conductive waveguide, a thin layer disposed on the slit waveguide and the conductive waveguide, and a liquid thin film disposed on the thin layer. The slit waveguide is used to propagate the optical field of pulsed light and to form a local optical mode field using the nano-slits. The conductive waveguide is used to absorb the local optical mode field to form plasma, thereby generating optical excitation heat. The thin layer is used to transmit the optical excitation heat, causing a thermocapillary effect in the thin layer and the liquid thin film, which deforms the liquid thin film. The liquid thin film is used to store pulsed light information using the deformation. The technical solution disclosed in this application utilizes a simple optical waveguide, substrate, thin layer, and liquid thin film to achieve the storage of pulsed light information by using optical excitation heat to drive the liquid thin film to flow and deform. This reduces the complexity and cost of the chip structure and the energy consumption of the chip.

The utility model discloses a rectangular groove waveguide horn antenna, which comprises a horn antenna body, the horn antenna body is composed of a horn antenna main body and a cross-shaped back plate, the back surface of the cross-shaped back plate is provided with a quick mounting mechanism, and the quick mounting mechanism comprises a threaded column, a fixing plate, four insertion blocks, two limiting sliding grooves, two limiting sliding plates and two strip-shaped pressing plates. The outer wall of the threaded column is sleeved with a movable plate, a fixed six-face lantern ring is arranged on the back face of the movable plate, a rotating six-face lantern ring is arranged on the back face of the fixed six-face lantern ring, an annular rotating groove is formed in the front face of the rotating six-face lantern ring, and a rotating ring is arranged in an inner cavity of the annular rotating groove. According to the utility model, the installation work of the rectangular groove waveguide horn antenna can be rapidly completed by rotating one rotating six-surface lantern ring through the cooperation of the threaded column, the fixed plate, the insertion block, the limiting sliding plate, the strip-shaped pressing plate, the movable plate, the fixed six-surface lantern ring, the rotating six-surface lantern ring and the rotating ring by utilizing the arrangement of the rapid installation mechanism; and the complexity of mounting the rectangular groove waveguide horn antenna is reduced.

Embodiments of the present application relate to slot waveguide-based optical components and optical chips. According to some embodiments of the present application, a slot waveguide-based optical component includes: a first waveguide; a slot waveguide located within the first waveguide; and an optical device located within the slot waveguide. Another embodiment of the present application provides an optical chip including one or more of the aforementioned optical components. The slot waveguide-based optical components and optical chips provided by the embodiments of the present application can effectively address issues encountered in conventional technologies.

The application relates to the field of silicon-based photoelectric integrated devices, in particular to a controllable high-nonlinear silicon-based graphene multimode slit waveguide and a preparation method thereof. The silicon-based graphene multimode slit waveguide comprises a silicon oxide substrate, a plurality of silicon waveguides arranged in parallel on the silicon oxide substrate, the silicon waveguides are strip-shaped and have rectangular cross sections, the silicon waveguides are arranged with slit gaps to form a multimode slit waveguide, graphene films are arranged on the surfaces of the multimode slit waveguide and extend to the surface of the silicon oxide substrate on both sides, first electrodes and second electrodes are arranged on the surfaces of the graphene films on both sides of the multimode slit waveguide, and a third electrode is arranged on the silicon oxide substrate at a position not covered by the graphene films; and ion gel layers are arranged above the graphene films, the silicon oxide substrate and the electrodes. The application greatly improves the nonlinear strength of the device and can be widely applied to high-speed optical logic operation devices and multimode optical logic operation.

The invention discloses a slot waveguide antenna, a radar with the same and an automobile, and relates to the technical field of waveguide antennas. Comprising a top plate and a bottom plate, the cross sections of the top plate and the bottom plate are rectangular, the bottom plate is parallel to the top plate and located below the top plate, the lower surface of the top plate is fixedly connected with a plurality of cuboid metal columns, the metal columns are enclosed on the lower surface of the top plate in a rectangular shape, and each side edge of the rectangular shape is composed of a plurality of metal columns distributed at intervals. At least two rows of metal columns are arranged corresponding to each side edge, the center distance between every two adjacent metal columns is smaller than 1 / 2 of the free space wavelength, and the air distance is smaller than 1 / 4 of the free space wavelength. The top of the metal column is fixedly connected to the lower surface of the top plate, and a gap smaller than 1 / 4 of free space wavelength is formed between the bottom of the metal column and the upper surface of the bottom plate; the top plate is provided with a plurality of waveguide slots, and the middle part of the bottom plate is provided with a waveguide port. The device has the beneficial effect that the phenomenon of energy leakage caused by the fact that the cavity is not closed can be avoided.

The invention discloses a fishbone grating micro-ring resonator sensing method and device based on envelope spectrum detection, and relates to the technical field of integrated optical sensing, and the method comprises the steps: designing a fishbone-shaped sub-wavelength grating slotted waveguide micro-ring resonator based on an SOI platform; analyzing light field distribution and a power limiting factor by adopting a three-dimensional finite difference time domain simulation method; establishing a transmissivity model of the micro-ring resonator by using a transmission matrix method, forming an envelope spectrum, and extracting a peak position and a drift distance characteristic parameter of the envelope spectrum; and calculating the sensing sensitivity according to the envelope spectrum drift data. By adopting the fishbone-shaped sub-wavelength grating waveguide structure and the envelope spectrum tracking detection method, the inherent contradiction between the performance and the size of the micro-ring resonator in the miniaturization process is cooperatively solved, the ultrahigh sensitivity of 565nm / RIU is successfully realized under the extremely small radius of 10 microns, the free spectral range limitation of single-peak tracking is broken through, and the sensitivity of the micro-ring resonator is greatly improved. And a reliable technical path is provided for realizing a high-density and high-flux integrated sensing chip.

The invention discloses waveguide equipment with an external sensor and an internal environment real-time detection method thereof. The method comprises the steps that a temperature and humidity sensor and a detection circuit are integrated in a shielding box through a slotted waveguide space synthesizer to form an external sensor, and environment monitoring is achieved through multi-sensor redundancy layout; establishing a temperature and humidity correction model through a least square method, and determining a data effective range in combination with a 3 sigma criterion; after abnormal values of real-time data are removed, the average value is taken to calculate the actual temperature and humidity, and the number of a fault sensor is automatically reported. The device adopts a graded waveguide structure, the microstrip probe and the waveguide cavity are accurately coupled through the unique waveguide slotting design, and the height difference between the bottom plate and the upper cover plate guarantees the center positioning of the probe. According to the invention, waveguide sealing performance and detection compatibility are realized through external sensor layout, the measurement precision is improved by combining a data fusion algorithm, and remote fault positioning and equipment health management are supported.