18 results about "Waveguide flange" patented technology

The application provides a terahertz waveguide cascade connection system, belonging to the technical field of waveguide flange connection, comprising a front-stage connecting device, a rear-stage connecting device and an intermediate gasket; the front-stage connecting device has an output waveguide hole; the rear-stage connecting device has an input waveguide hole with a hole diameter equal to that of the output waveguide hole; the input waveguide hole is misaligned with the output waveguide hole; the intermediate gasket is clamped and abuts between the output side of the front-stage connecting device and the input side of the rear-stage connecting device; the intermediate gasket has a waveguide passage, one end of which has a hole diameter equal to that of the output waveguide hole, and the other end has a hole diameter larger than that of the output waveguide hole, and the difference between the large-end hole radius and the small-end hole radius of the waveguide passage is larger than the misalignment error; the small-end hole of the waveguide passage is coaxially arranged with the input waveguide hole, and the large-end hole of the waveguide passage is arranged on the output waveguide hole. The terahertz waveguide cascade connection system provided by the application can effectively reduce the transmission loss caused by cascade error and improve the quality of signal transmission.

The application relates to a quick-disassembly waveguide structure for testing the line width of ferrite ferromagnetic resonance, belonging to the field of microwave and millimeter wave band magnetic material parameter testing. The quick-disassembly waveguide structure comprises a main waveguide tube and a quick-disassembly resonant cavity, and the main waveguide tube comprises a first rectangular waveguide, a second rectangular waveguide, a connecting bridge, a waveguide flange and a positioning pin. The quick-disassembly waveguide structure for testing the line width of ferrite ferromagnetic resonance is characterized in that the rectangular waveguide, the waveguide flange, the connecting bridge and the coupling sheet of the resonant cavity are integrally connected to form the main waveguide tube, the quick-disassembly resonant cavity is placed in the gap formed by the connecting bridge, and the quick-disassembly resonant cavity is achieved; the sample loading method of 'filling medium in the cavity and loading the sample through the medium sheet' is adopted, and the loading problem of the 30GHz and above millimeter wave band ferrite FMR test sample is solved.

The utility model relates to a quick locking tool convenient for installing a waveguide flange. The quick locking tool comprises a first millimeter wave device and a second millimeter wave device from left to right in sequence, a tool fixing block is installed on the second millimeter wave device, and a tool sliding block connected with the tool fixing block is installed on the first millimeter wave device. During flange connection, a screw fastening mode can be avoided, installation is simple and efficient, and connection efficiency is effectively improved.

A waveguide spacer for thermally decoupling a first flange member from a second flange member of a waveguide structure for guiding high frequency radio waves, the waveguide spacer includes a band-gap layer composed of a dielectric substrate and a plurality of electrically conductive contacts inserted into the substrate. The substrate has a waveguide hole connecting opposite sides of the substrate and the contacts are arranged around the waveguide hole to form a band-gap structure. The waveguide spacer includes a dielectric first outer layer for contacting the first flange member. The first outer layer at least partially covers a first side of the band-gap layer. The waveguide spacer further includes an electrically conductive second outer layer for contacting the second flange member. The second outer layer at least partially covers a second side of the band-gap layer and is electrically connected to each contact.

The invention discloses a waveguide chip test fixture. A base comprises a first waveguide shell; one side of the first waveguide shell is provided with at least one second waveguide shell, and a plurality of waveguide cavities are formed through cooperation of the first waveguide shell and the second waveguide shell; an inner shell is arranged on the first waveguide shell, and an elastic contact assembly is arranged on the inner shell; an outer shell is arranged below the second waveguide shell, a connecting assembly is arranged on the outer shell, the other end of the connecting assembly extends to the elastic contact assembly, a to-be-tested chip is placed in the middle of the inner shell, the elastic contact assembly is electrically connected with the to-be-tested chip, and waveguide, radio frequency and low frequency tests are carried out on the to-be-tested chip through the waveguide cavity and the connecting assembly; the first waveguide shell and the second waveguide shell are matched to form a plurality of waveguide cavities which extend and fan out from the middle to the periphery in the horizontal direction, the waveguide cavities are communicated with the outside to form a plurality of waveguide ports, the waveguide cavities can be connected with a plurality of waveguide flanges at the same time, and multiple groups of waveguide tests can be conducted at the same time through the waveguide cavities.

The invention discloses a vertical polarization waveguide slot array antenna for high-power pitching one-dimensional phase scanning. The vertical polarization waveguide slot array antenna comprises a radiation waveguide, a radiation slot, a reflecting plate, a metal baffle and a waveguide flange. The radiation waveguides are arranged at equal intervals in the narrow side direction, the radiation slots are wide-side inclined slots to generate vertical polarized waves, the reflecting plate is arranged on the back side, the distance between the reflecting plate and the center line of the wide side of the waveguide is 1 / 4 waveguide wavelength, and back radiation in-phase superposition is achieved. The antenna adopts a rectangular waveguide structure, a single linear array bears power of more than 105 watts, pitching dimension large-angle phase scanning can be realized, vacuumizing or inflation is not needed, and the antenna is suitable for a high-power scene.

The present invention relates to an antenna apparatus for establishing wireless coupling to a device under test, comprising an antenna structure and a first blind-mating waveguide flange coupled to the antenna structure, wherein the first waveguide flange has a ridged waveguide structure including at least two ridges.

An enclosure is constructed of multiple sections joined end-to-end at joints. Each joint includes a waveguide flange at one end of one of the sections. The waveguide flange defines a waveguide channel that is configured proportionally to a predetermined electromagnetic frequency. Each joint also includes a shield flange at one end of another section joined to the waveguide flange. The shield flange defines a shield surface for the waveguide channel.

The application discloses a waveguide flange structure for transmitting high-power microwave, and belongs to the technical field of high-power microwave transmission and emission. The waveguide flange structure is composed of a flange, blind holes and a radial sealing ring. The flange has a certain spacing between two flange surfaces. The two flange surfaces are provided with a circle of blind holes. The blind holes on one flange surface are rotationally offset from the blind holes on the other flange surface. The waveguide and the flange are sealed by engraving sealing grooves on the radial sealing ring and placing sealing rings, so that the waveguide can work in a vacuum environment. In the application, the spacing between the waveguide flange end surfaces is artificially increased, so that the tip field enhancement at the traditional flange surface is reduced, and the power capacity of the waveguide is improved. Meanwhile, the application solves the problem of increased loss caused by easy leakage of microwave at the traditional flange surface, reduces the precision requirement of the flange end surface in engineering, and greatly reduces the processing difficulty and cost.

A mounting base (14) is fixed to an antenna (13) or an antenna bracket (15) for supporting the antenna (13). A baseband unit (11) and an RF unit (12) are fixed to the mounting base (14). The baseband unit (11) fixed to the mounting base (14) is disposed to face a back part (132) of the antenna (13) and to form a space between the back part (132) and the first enclosure (111). The RF unit (12) fixed to the mounting base (14) is disposed in the space formed between the back part (132) of the antenna (13) and the baseband unit (11) and is coupled to a waveguide flange (132) of the antenna (13). Thus, for example, in a configuration of a point-to-point wireless apparatus in which an RF unit and a baseband unit are separated, restrictions on installation space of the apparatus can be facilitated.

The invention discloses a non-contact total reflection calibration piece for a port network parameter tester and a calibration method. The non-contact total reflection calibration piece comprises a metal plate, a cylindrical platform is arranged on the metal plate, a periodic square column electromagnetic band gap structure is etched on the cylindrical platform, a cylindrical total reflection structure is etched in the middle of the periodic square column electromagnetic band gap structure, connecting holes are formed in the periphery of the periodic square column electromagnetic band gap structure, and an annular protection surface is arranged on the outermost periphery of the metal plate. The upper surface of the periodic square column electromagnetic band gap structure, the surface of the cylindrical total reflection structure and the annular protection surface are located on the same horizontal plane. The electromagnetic band gap periodic structure is used for replacing a traditional waveguide flange metal face, transverse leakage of electromagnetic waves along the flange face is restrained, the testing precision is improved, and the testing error is reduced.

The application discloses a waveguide antenna assembly precision visual calibration method and system, and belongs to the technical field of waveguide antenna assembly. In the state that the waveguide antenna and the docking component are not in contact, a multi-view high-resolution industrial camera and a structured light projection are used to synchronously collect a waveguide flange surface image, and a three-dimensional appearance is reconstructed through phase demodulation; based on the image and the point cloud, a port center axis, a waveguide flange surface normal vector and a positioning reference are extracted, and flatness and edge continuity are calculated; geometric features are matched with a standard assembly model, a six-degree-of-freedom pose deviation is solved through singular value decomposition, visual guidance instructions are generated according to a preset tolerance threshold, a closed-loop dynamic calibration is driven by an adjustment platform, and the process is paused when there is an edge defect. The application changes the assembly calibration from a posteriori mechanical contact to a prospective geometric alignment based on visual detection, realizes intelligent assembly of non-contact real-time guidance, and significantly improves the assembly precision and consistency of the waveguide system.

The utility model belongs to the technical field of microwaves, and particularly discloses a rotary joint with a sealing window, which comprises a waveguide flange and a waveguide coaxial converter, the waveguide flange comprises a first sealing window flange and a second sealing window flange, and the waveguide coaxial converter comprises a first coaxial converter and a second coaxial converter; the first coaxial converter is arranged on the side edge of the first sealing window flange, the second coaxial converter is arranged on the side edge of the second sealing window flange, and a choke groove is formed between the first coaxial converter and the second coaxial converter. The two components of the antenna are not in contact, and radio frequency signals passing through the interior can be continuously, efficiently and stably transmitted; the first coaxial converter and the second coaxial converter realize mutual conversion between an electromagnetic wave mode transmitted in the waveguide and an electromagnetic wave mode transmitted in the coaxial line; the first sealing window flange and the second sealing window flange are used as waveguides to transmit signals; and air is isolated, so that a local sealing structure is formed.

The invention belongs to the technical field of electromagnetic fields and microwaves, and discloses a full-bandwidth terminating rectangular waveguide coaxial conversion device which is realized by adopting a mode that a coaxial inner conductor and a coaxial outer conductor are separated from each other, and a rectangular waveguide body, a second-order rectangular step metal structure and the coaxial inner conductor are of an integrated processing structure. Secondary assembly of the coaxial inner conductor and the second-order rectangular stepped metal structure is avoided, and secondary assembly errors are eliminated; according to the device, the coaxial outer conductor and the cut-off flange are integrally machined, the whole device only needs one-time assembly, namely assembly of the waveguide flange and the cut-off flange, and errors caused by multiple times of assembly are greatly reduced; the diameter of the coaxial inner conductor is uniform, a fine boss structure does not exist, the machining difficulty is greatly reduced, meanwhile, the coaxial inner conductor of the device does not need to be supported by a medium, the whole waveguide coaxial conversion device is of an all-metal structure, and the cost is low. And assembly errors and influences caused by a medium support material in traditional waveguide coaxial conversion are further avoided.

The invention discloses a waveguide flange butt-joint clamping tool which comprises a first waveguide flange and a second waveguide flange, a plurality of clamping assemblies are arranged on the outer side of the butt-joint position of the first waveguide flange and the second waveguide flange, each clamping assembly comprises a mounting shell, a pair of clamping pieces are rotationally connected to the top and the bottom of each mounting shell, and handheld parts are arranged at the tails of the clamping pieces. A first connecting lug and a second connecting lug are arranged at the two ends of the face, close to the mounting shell, of the clamping piece correspondingly. According to the clamping tool, through the structural design of the mounting shell, the clamping piece and the torsion assembly, the clamping tool conducts butt-joint clamping on the waveguide flange in a clamping mode, mounting and dismounting are convenient, the butt-joint efficiency is improved, practicability is high, application and popularization are facilitated, and through the structural design of the clamping force adjusting assembly, the clamping force adjusting assembly can adjust the clamping force. According to the clamping tool for the waveguide flange, the clamping force of the two clamping pieces on the waveguide flange can be accurately adjusted when the clamping tool is used, so that the applicability of the clamping tool is improved, and through the structural design of the clamping force reading assembly, the clamping force of the clamping pieces can be conveniently and accurately adjusted.

The application discloses a waveguide chip test fixture, a base comprises: a first waveguide shell; at least one second waveguide shell is arranged on one side of the first waveguide shell, a plurality of waveguide cavities are formed by cooperation of the first waveguide shell and the second waveguide shell; an inner shell is arranged on the first waveguide shell, and an elastic contact assembly is arranged on the inner shell; an outer shell is arranged below the second waveguide shell, a connecting assembly is arranged on the outer shell, the other end of the connecting assembly extends to the elastic contact assembly, a to-be-tested chip is placed in the middle of the inner shell, the elastic contact assembly is electrically connected with the to-be-tested chip, waveguide, radio frequency and low-frequency tests are carried out on the to-be-tested chip through the waveguide cavities and the connecting assembly; the plurality of waveguide cavities formed by cooperation of the first waveguide shell and the second waveguide shell extend fan-out from the middle to the periphery in the horizontal direction, are communicated with the outside to form a plurality of waveguide openings, can be connected with a plurality of waveguide flanges at the same time, and a plurality of groups of waveguide tests can be carried out at the same time through the plurality of waveguide cavities.

1. The name of the design product: soft waveguide flange (UDR48). 2. The use of the design product: for detachable connection of soft waveguide. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.