68results about How to "Small weight" patented technology

The invention discloses an ultra-wideband low-profile feed source loaded with a step medium, and relates to the field of ultra-wideband feed sources. The antenna comprises four log-periodic antennas, four groups of step dielectrics, dielectric cylinders, a reflection floor, a metal cavity and two feed baluns, the four log-periodic antennas are divided into two pairs which are orthogonally arranged, each pair comprises two log-periodic antennas which are oppositely arranged, the log-periodic antennas are fixed on the dielectric cylinder through screws, and an included angle is formed between the log-periodic antennas and the reflection floor; each group of stepped dielectric is formed by arranging twelve dielectric blocks in height stepped distribution, is positioned between the log-periodic antenna and the reflection floor, and clings to the reflection floor; the two feed baluns are orthogonally arranged, and each balun comprises a dielectric substrate, an index gradient microstrip line and a one-to-two power divider. The antenna is wide in frequency band, low in profile and suitable for serving as a primary radiator of a reflector antenna in the fields of satellite communication, radar detection, radio astronomy and the like.

The modular ROV switching lifting device comprises a lifting frame, a retracting winch, a butt joint assembly, a supporting frame, a hydraulic system and an electric control system, the upper portion of the lifting frame is connected with an original lifting system of a mother ship, the lower portion of the lifting frame is connected with the retracting winch through a bolt, and two side plates of the lifting frame are connected with the butt joint assembly through two guide rods; the lug plates on the supporting frame side plates are used for being connected with an ROV guide connector body, fixed to a guide connector and connected with a deck to be fixed to the deck. An electric control assembly in the electric control system and a hydraulic assembly in the hydraulic system are both placed on a side plate of the winding and unwinding winch; the winding and unwinding winch is controlled by a console and a remote controller, and the winding and unwinding winch is connected with an ROV lifting point through a winch cable to complete the laying and winding operation of the ROV; through the modularized ROV switching lifting device, quick reloading can be completed in a short time, and quick switching from a manned submersible launching and recovery system to an ROV launching and recovery system is achieved.

The invention discloses an optical domain routing reconfigurable information exchange device and method, the device comprises an electrical interface, a signal acquisition unit, a photoelectric conversion unit, an optical path scheduling unit and an optical interface which are connected in sequence, the electrical interface can be externally connected with a group of sensors or directly output electrical signals, and the optical interface is connected with opposite terminal equipment. And the electrical interface, the signal acquisition unit, the photoelectric conversion unit, the optical path scheduling unit and the optical interface form a closed loop through opposite terminal equipment. The device can realize large-scale high-speed data optical domain routing reconfigurable information exchange processing, and is low in cost, small in equipment weight and size, low in equipment power consumption, good in expandability, suitable for various complex application scenes and wide in application prospect, and the method is easy to operate and high in practicability.

The invention provides a six-axis linkage motion platform, and belongs to the technical field of scanning electron microscopes. The X-axis linear motion mechanism comprises an X-axis linear motion structure arranged on a base; the Y-axis linear motion mechanism is arranged on the base and is used for enabling the portal frame to move in the Y direction; the Z-axis linear motion structure is arranged on the portal frame; the R-axis rotating structure is arranged on the X-axis linear motion structure and is used for enabling the sample to rotate by 360 degrees; the T-axis tilting and swinging structure is arranged on the Z-axis linear motion structure and is used for enabling the electron gun assembly to swing; and the A-axis linear motion mechanism is arranged on the T-axis tilting and swinging structure and used for providing linear motion of the electron gun assembly in the A-axis direction. The X-axis, the Y-axis, the Z-axis, the A-axis, the T-axis and the R-axis are arranged, adjustment of movement in six directions can be achieved, slicing treatment is not needed when large-size samples are observed, and precious samples are prevented from being damaged.

The present invention discloses a dewatering filter for an airborne oxygen system, wherein an air inlet pipe is provided at the upper end of a shell, a water outlet hole is provided at the bottom of the shell, an air outlet pipe is provided on the outer wall of the shell, a spiral tooth plate and a filter body are installed in the shell, a vertical filter body is located at the center of the shell, the spiral tooth plate is installed around the middle and upper outer wall of the filter body, a gap is provided between the outer wall of the spiral tooth plate and the inner wall of the shell, a filter air inlet is provided at the lower part of the filter body, a filter air outlet is provided at the upper part of the filter body, and the filter air outlet is connected to the air outlet pipe. The present invention highly integrates a dewatering device and a filter device into one device, which has both dewatering and filtering functions, so that the air entering the oxygen concentrator meets the high quality requirements of dryness and cleanliness, prolongs the life of the airborne oxygen concentrator, and significantly reduces the volume and weight of the entire oxygen system, reducing the flight load and cost of the aircraft.

The utility model relates to the technical field of fish culture, in particular to a rapid fishing device which comprises a main body frame and an inserting rod fixedly connected with the surface of the main body frame and further comprises an adjusting assembly. The adjusting assembly comprises a rotating shaft, the rotating shaft is rotatably connected with the inner wall of the main body frame, the surface of the rotating shaft is fixedly connected with a winding drum, the surface of the winding drum is sleeved with an adjusting rope, one end of the adjusting rope is fixedly connected with the surface of the winding drum, and the other end of the adjusting rope is fixedly connected with a fish cage; positioning holes are formed in the surface of the fixing disc, a fixing frame is fixedly connected to the surface of the body frame, positioning rods are slidably connected to the inner wall of the fixing frame, and first screw holes are formed in the surface of the fixing frame. By arranging the adjusting assembly, the distance between the two sets of fish cages can be rapidly adjusted in a labor-saving mode according to the widths of different fish channels, the size and weight of the whole device are small, carrying, moving and placing are convenient, and the convenience of the device is effectively improved.

This invention discloses a piston and its design method, relating to the field of piston technology. The piston includes a skirt and a head connected to the top of the skirt. The skirt has a pin hole extending transversely through the skirt. Two hole sides are located on either side of the skirt along the transverse direction. A main thrust side and a secondary thrust side are formed on either side of the skirt along the longitudinal direction. The main thrust side has two first grooves recessed towards the secondary thrust side, both located near the bottom of the skirt and spaced apart transversely. The secondary thrust side has a second groove recessed towards the main thrust side, located near the top of the skirt. The piston provided by this invention can effectively avoid stress concentration, reduce abnormal wear, has a long service life, and high reliability.

Disclosed is a battery module which has a simple structure, small volume and weight, and efficient cooling performance. The battery module includes a plurality of secondary batteries, each including an electrode assembly and a pouch exterior configured to accommodate the electrode assembly in an inner space thereof and having a sealing portion provided thereto, the plurality of secondary batteries being arranged in a vertical direction in a state of being laid in a horizontal direction; and a plurality of cartridges configured to be stacked in a vertical direction, each cartridge being coupled in contact with a sealing portion of the secondary battery to surround the sealing portion and being made of thermally-conductive material.

The utility model relates to the technical field of primary processing equipment in the tobacco industry, in particular to a novel negative pressure dust and moisture removal device, which is characterized in that the upper end part of a split type dust and moisture removal cover is fixedly connected with a dust and moisture removal branch pipeline, one side of the dust and moisture removal branch pipeline is fixedly connected with a group of electromagnetic valves, and a branch pipe valve is arranged in the dust and moisture removal branch pipeline; a set of PLC is connected to the lower end of the electromagnetic valve, a negative pressure detector is arranged in the dust removal and moisture removal branch pipeline, a centralized dust removal body is fixedly connected to the upper end of the dust removal and moisture removal branch pipeline, and a branch pipe valve and a negative pressure detector are arranged in the middle section of the branch pipeline. The other one can concentrate on quickly discharging moisture and heat, the professional design can improve the overall dust removal and moisture discharging efficiency, and meanwhile, the pressure and load borne by single equipment can be reduced, so that the noise and vibration during operation are reduced, the working stability of the equipment is improved, and the service life of the equipment is prolonged.

The invention provides a wing gust mitigation control method based on combined plasma excitation, and belongs to the technical field of aircraft gust mitigation control. The control method comprises the following steps: S1, acquiring an aerodynamic characteristic curve of the wing; s2, a first installation position is determined based on the aerodynamic characteristic curve obtained in the step S1, and a first plasma exciter is installed at the first installation position; s3, determining a second mounting position based on the aerodynamic characteristic curve obtained in the step S1, and mounting a second plasma exciter at the second mounting position; and S4, a gust signal of the wingtip or the nose of the unmanned aerial vehicle is obtained, and the first plasma exciter or the second plasma exciter is controlled to operate according to the gust signal. Induced jet flow is generated on the surface of the wing through the plasma exciter and acts on an airflow field on the surface of the wing, aerodynamic force fluctuation of the wing is controlled, gust load is slowed down, and hang time is prolonged.

The utility model provides an infusion device which comprises a shell, an infusion tube, an infusion tube and an infusion tube. The medicine storage bag is arranged in the accommodating cavity; the remaining needle assembly is mounted in the mounting opening; the infusion pump is arranged in the containing cavity, the input end of the infusion pump is communicated with the medicine storage bag through a medicine inlet pipeline, and the output end of the infusion pump is communicated with the remaining needle assembly through a medicine outlet pipeline. According to the scheme, a piston component is omitted, the internal structure of the infusion device is fully simplified, the size and weight of the infusion device are smaller, and the use experience of the infusion device is effectively improved.

The invention provides a measuring tool for grounding. The measuring tool comprises a seat body; the transmission gear is rotatably arranged on the seat body; the insertion rod is arranged on the transmission gear in a penetrating mode and matched with the transmission gear in a rotation stopping mode, and the insertion rod can move up and down relative to the transmission gear; the driving part comprises a driving gear, the driving gear can be meshed with the transmission gear to drive the transmission gear to rotate, and the transmission gear rotates to drive the insertion rod to rotate and move up and down; and the detector is electrically connected with the insertion rod. According to the technical scheme, the problems that in the related technology, a measuring tool for grounding is large in size and weight and inconvenient to carry are effectively solved.

This invention discloses a non-standard drill pipe loading and unloading jig. It utilizes a clearance notch to avoid the protruding ribs on the drill pipe section surface. The upper surface of the support plate vertically abuts against the drill pipe section, providing support. Compared to using friction generated by clamping to resist the weight of the drill pipe section, this method avoids damage and is well-suited for loading and unloading large drill pipe sections. The support plate extends radially through a pad to abut against the support surface around the drill pipe. The two components are separate, reducing the weight and volume of individual parts. The pad is designed to consist of multiple arc-shaped pads, and the support plate is designed to consist of multiple arc-shaped support blocks. This not only facilitates installation and use but also further reduces the weight and volume of individual components, improving manufacturing, transportation, and use. This non-standard drill pipe loading and unloading jig is not only simple in structure but also effectively addresses the problem of existing drill pipe jigs being unsuitable for large drill pipes with protruding ribs, thus reducing drilling difficulty.

The embodiment of the utility model relates to the technical field of electric appliances, and discloses a driving device and an electric toothbrush. The motor comprises a shell and a rotating shaft with the two ends extending out of the shell. The motor drives the rotating shaft to rotate around the axis in a reciprocating mode in the working state. The air cylinder comprises a cylinder body, an air inlet one-way valve and an air outlet one-way valve, the cylinder body is provided with a moving end, an air inlet and an air outlet, the air inlet one-way valve is arranged at the air inlet, and the air outlet one-way valve is arranged at the air outlet; one end of the rotating shaft is in driving connection with the moving end through the connecting assembly, the rotating shaft drives the moving end to reciprocate to change the volume of a cavity in the cylinder body, when the volume of the cavity in the cylinder body is increased, the air inlet one-way valve is opened to suck air from the air inlet, and when the volume of the cavity in the cylinder body is decreased, the air outlet one-way valve is opened to discharge air from the air outlet. By means of the mode, the driving device can drive the rotating shaft and the air cylinder at the same time only through one motor, and the size and the weight are smaller.

The application relates to a high-salt wastewater crystallization method and device, and belongs to the technical field of wastewater treatment. In the method, hot flue gas or hot air is blown through the surface of fine-particle crystal seeds in a scattered state and covered with a water film, heat and mass transfer occurs between the hot flue gas or hot air and the surface of the fine-particle crystal seeds, the water on the surface of the fine-particle crystal seeds evaporates into the flue gas or air, the salt in the high-salt wastewater is crystallized on the surface of the fine-particle crystal seeds, the growing crystal seeds in a scattered state collide with each other or with the wall surface of a crystallizer in the movement, the surface crystals are stripped off, screened and discharged from the crystallizer; the flue gas or air carrying a small amount of fine-particle crystallized salt is discharged after dust removal; and the crystal seeds in a scattered state return to the crystallizer, are re-coated with a water film, evaporate and crystallize, and are recycled. The device has the advantages of strong heat and mass transfer process, large crystallization area, crystal seed strengthening in the crystallization process, and the like, can realize rapid evaporation and crystallization of wastewater by using low-temperature flue gas or air (less than 90 DEG C), and has small volume and weight, and low manufacturing and using costs.

The utility model provides a chain connecting machine for chain repair, which comprises a base, an oil cylinder assembly, a ring breaking mechanism and a ring closing mechanism. The ring breaking mechanism comprises a slideway, a fixed ring breaking die and a sliding ring breaking die; the ring closing mechanism comprises a slideway, a fixed ring closing mold and a sliding ring closing mold; the oil cylinder assembly acts on two sides, one side drives the sliding ring breaking-off die to achieve the effect of breaking off a single ring, and the other side drives the sliding ring closing die to achieve the effect of closing the single ring. The utility model relates to the field of chain repair, in particular to a chain connecting machine for chain repair, which drives a ring breaking mechanism and a ring closing mechanism through reciprocating motion of an oil cylinder to complete a chain ring connecting process, is small in dead weight, convenient to move, capable of moving to a position where a chain needs to be repaired to work, and capable of improving efficiency and reducing cost. The labor is reduced.

The invention discloses a radioactive source shielding container capable of monitoring the in-place state of a radioactive source, which comprises a shielding body, a shielding base and a shielding bottom plate which are connected in sequence, an accommodating hole is formed in the shielding body, a spring and a radioactive source assembly are arranged in the accommodating hole, a detection hole is formed in the shielding base, a detection assembly is arranged on the shielding bottom plate, and the detection assembly is connected with the shielding body. The detection end of the detection assembly directly faces the detection hole. The shielding container can quickly open and retract the radioactive source, is convenient and quick, shortens the irradiation time, reduces the radiation quantity of personnel, reduces the irradiation influence on the surrounding environment, is small in size and weight, is easy to carry, is convenient to transfer, is easy to operate, is low in error-tolerant rate, reduces the probability of radiation accidents, can monitor the in-place state of the radioactive source in real time, and improves the working efficiency. The radioactive source is prevented from being lost.

The invention discloses an electronic sound production device which comprises a shell, a vibrating diaphragm and an energy conversion assembly matched with the shell. The transduction assembly comprises a linear micro-wire segment element and a magnetic element, the linear micro-wire segment element is provided with a base material, a plurality of metal wire segments in the same direction are manufactured on the base material, a gap is formed between every two adjacent metal wire segments, and the two ends of each metal wire segment are connected with power connection parts arranged on the base material respectively; the number of the magnetic element is at least one, and the magnetic element is used for forming a magnetic field penetrating through the linear micro-segment element; the vibrating diaphragm is connected with the linear micro-segment element, and the vibrating diaphragm moves along with the linear micro-segment element. The electronic sounding device has the advantages of small size and light weight, and the driving effect of the transduction assembly is strong, so that the sounding effect of the electronic sounding device is good.

The present invention relates to a vehicle (1) having a windshield wiper system with translational motion, comprising: a body (4) having a windshield (6) and two front pillars (10) respectively defining the windshield on the sides; and a windshield wiper system (12) having a single arm (13), a wiper blade (14) and an actuator device (15), the wiper blade being coupled to the arm and pushed against the outer surface of the windshield by the arm, the actuator device being configured to cause the arm to move on the windshield in an alternating motion requiring at least one portion (T1; T) of a purely translational linear motion therein, and the actuator device being configured to position the arm in a stationary position when the windshield wiper system is closed, in which the arm remains stationary. In the stationary position, the arm is positioned close to the front pillars.

The invention discloses an optical imaging system which comprises a lens front group, a lens focusing group and a lens rear group which are sequentially arranged from the object side to the image side in the extension direction of an optical axis. The lens front group comprises a first lens with negative focal power, a second lens with positive focal power, a third lens with positive focal power, a fourth lens with negative focal power and an aspheric fifth lens, the first lens, the second lens, the third lens, the fourth lens and the fifth lens are sequentially arranged from the object side to the image side, and the lens front group meets the following conditions:-1.8 lt; fa1 / Flt; and-0.8; wherein Fa1 is the focal length of the first lens; and F is the focal length when the optical imaging system is focused infinitely. Compared with the prior art, the optical system has the advantages that the structure is compact, the size is small, the full field angle changes slightly when the focusing group moves, the optical distortion in all the focusing distance ranges is smaller than 1%, the clear aperture is larger, and high-quality optical performance is provided.

The present invention relates to the field of battery temperature control technology, and discloses a dual-acting temperature control system and equipment for power batteries for new energy rail locomotives, the equipment comprising a power battery pack, a cold plate is provided on the outside of the power battery pack, a gas pipeline is connected to one side of the cold plate, and a compressor is connected to the end of the gas pipeline away from the cold plate. The present invention organically combines a compression refrigeration system and a separate heat pipe cooling system to achieve energy saving and heat dissipation performance, protect its dual-acting system structure design, protect its dual-system shared condenser structure, protect its dual-system shared evaporator structure, and protect its dual-system switching control logic. Through the combination of the two systems, the overall weight and volume are small, and automatic deep cleaning of the air-cooled condenser fins and heat conducting plates can be achieved, without the need for manual time-consuming and labor-intensive disassembly for cleaning, saving time and labor, and ensuring the normal use of the air-cooled condenser.

This utility model discloses a wind-resistant structure for the crown of a high-rise building, including a mass block disposed inside the crown and steel cables disposed inside the crown, with the mass block suspended inside the steel cables. The mass block consists of an upper part, a middle part, and a lower part. The upper part consists of block A, block B, and block C. Block A is disposed on top of block B, and block C is disposed at the bottom of block B. An installation mechanism is provided at the connection between the top of block B and blocks A and C. By using a modular design, the mass block is divided into relatively small modules, reducing the requirements for manufacturing equipment, manufacturing difficulty, and cost. Compared with the integral type, the modular mass block has a smaller individual module size and weight, which can be transported using ordinary transportation tools, making it easier to cope with road height and weight restrictions, greatly reducing transportation difficulty and cost. At the installation site, the smaller modules are easier to operate and position.

This invention discloses an immune cell with enhanced anti-tumor effect, its preparation method, and its application. Experiments using this invention show that... SERTAD1 CD8 gene overexpression + T cells can enhance their function in anti-tumor immunotherapy. SERTAD1 Gene overexpression can downregulate CD8 + The expression of immune checkpoint molecules on T cells upregulates the expression of mRNAs of tumor-killing cytokines. In the MC38-OVA subcutaneous tumor model, Naïve CD8 cells were extracted from OT-I mice. + T cells were infected with a virus to overexpress SERTAD1, followed by adoptive transfer to mice. The results showed that SERTAD1 overexpression enhanced CD8 expression. + T cells kill MC38-OVA cells, inhibit the growth of MC38-OVA tumor cells, and overexpress SERTAD1 CD8. + The tumor volume and weight in the T-cell adoptive group were significantly smaller than those in the control group.

The utility model relates to body -building equipment technical field especially arm strength device anti -collision protection device, including support, rotatably located on the ratchet wheel group of support, set up in ratchet wheel group one side and are used to the rebound assembly of ratchet wheel group rotation, set up in ratchet wheel group the other side's tachometer, set up in the upper cover of support top, set up in the brake of upper cover, set up in the main control circuit board and battery of support, when ratchet wheel group counterclockwise direction rotation speed (pull out line) of tachometer monitoring exceeds the pre -set value, main control circuit board immediately starts brake and lets machine stop working (rotation), ratchet wheel group stops rotating, when main control circuit board detects tachometer clockwise rotation (take up line), main control circuit board removes electronic brake, and new cycle starts work, and ratchet wheel group can move rotation, avoid arm strength device rebound and cause harm to human body.

The invention discloses a 23mm-focal-length large-aperture camera lens. The 23mm-focal-length large-aperture camera lens sequentially comprises a first lens group, an iris diaphragm, a second lens group and a third lens group from an object side to an imaging surface, the first lens group serves as a fixed group, has positive focal power, and comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens; the second lens group is used as a focusing group, has positive focal power, and comprises a seventh lens, an eighth lens and a ninth lens; the third lens group serves as a fixed group, has negative focal power and comprises a tenth lens, an eleventh lens and a twelfth lens; the aspheric lens is used for optimizing aberration, the cost and appearance advantages are achieved, meanwhile, the high-performance expression of the F1.4 maximum aperture is achieved, the imaging is excellent at infinity and close-up distance, the distortion is smaller than 2%, the discomfort of video shooting is greatly reduced, and the shooting experience is improved.

The invention belongs to the field of optical communication transmission, and particularly discloses a high-tensile-strength framework type ribbon optical cable and a preparation method thereof.The high-tensile-strength framework type ribbon optical cable comprises a framework type cable core and a sheath body, the sheath body wraps and is attached to the outer portion of the framework type cable core, and the framework type cable core comprises a framework body and a plurality of optical fiber ribbons; a plurality of skeleton grooves are formed in the peripheral side of the skeleton main body; the plurality of optical fiber ribbons are respectively arranged in the corresponding skeleton grooves; the skeleton-type cable core also comprises a water-blocking tape, and the water-blocking tape wraps the optical fiber tape and the skeleton main body. The sheath body comprises an inner sheath layer, a tension enhancement layer and an outer sheath layer which are sequentially arranged from inside to outside. According to the skeleton-type ribbon optical cable, the sheath body is combined with the skeleton-type cable core, so that the whole optical cable has better tensile performance on the premise that the advantages of high optical fiber density, small diameter and weight, no pollution and the like of the existing skeleton-type ribbon optical cable are reserved, and the skeleton-type ribbon optical cable is suitable for use and construction occasions with higher requirements on the tensile force of the optical cable.

The present invention discloses a device and method for measuring the concave-convex quantity of aircraft fasteners. The device includes a device operation module, a data acquisition module, an embedded system, a device power supply module and an auxiliary measurement module; the data acquisition module includes a laser rangefinder, a two-dimensional camera and a binocular structured light camera, the binocular structured light camera is fixed on the device box and under the device upper cover, and collects point cloud data and image data of the aircraft surface; the laser rangefinder and the two-dimensional camera are fixed in the device box, and respectively obtain the distance data between the laser rangefinder and the aircraft surface, and the image of the aircraft surface in the shooting area of ​​the two-dimensional camera; the embedded system receives the operation instruction of the device operation module, sends the acquisition instruction to the data acquisition module, and stores and processes the data obtained by the data acquisition module, and marks the fasteners on the aircraft surface and calculates the concave-convex quantity. The present invention can realize the concave-convex quantity measurement of aircraft fasteners more conveniently, accurately and efficiently.

The invention provides a glass-based AOP phased-array antenna unit and a radar system, and relates to the technical field of antennae, the glass-based AOP phased-array antenna unit comprises a T / R assembly module and an antenna module, the T / R assembly module comprises a first BGA ball array, a first glass-based adapter plate, a glass-based adapter cap, a transceiving multifunctional chip and a transceiving bidirectional amplification chip; the antenna module comprises a glass-based adapter plate 2, an antenna assembly and a BGA ball array 2. The first BGA ball array, the first glass-based adapter plate, the glass-based adapter cap, the second BGA ball array, the second glass-based adapter plate and the antenna assembly are sequentially stacked in a selected direction to form a multi-layer structure. A transceiving multifunctional chip and a retractable bidirectional amplification chip which are mounted on the glass-based adapter plate I and are connected with each other are arranged in the glass-based adapter cap; the vertical parts of the first glass-based adapter plate, the second glass-based adapter plate and the glass-based adapter cap are respectively provided with a TGV structure used for signal transmission. The antenna efficiency can be effectively improved.

The present invention discloses a multi-frequency high-isolation millimeter-wave phased array antenna based on multipath cancellation, comprising a first layer of dielectric substrate, a second layer of dielectric substrate and a third layer of dielectric substrate which are stacked and placed, the upper and lower surfaces of the first layer of dielectric substrate are respectively provided with magnetoelectric dipole antenna units and metal floors arranged in an array, the second layer of dielectric substrate is provided with a feeding layer, the third layer of dielectric substrate is provided with a GCPW switching layer, two metal grounding column walls are provided on both side edges of the upper surface of the first layer of dielectric substrate, and magnetoelectric dipole antenna units are provided between the two metal grounding column walls; multiple coupling cancellation paths are provided in the first layer of dielectric substrate to cancel the inherent coupling paths. Compared with the traditional high-isolation antenna, the decoupling structure of the present invention is simple, and no additional profile is required to achieve decoupling of the multi-frequency antenna. Moreover, the multi-frequency high-isolation millimeter-wave phased array antenna based on multipath cancellation.

The utility model belongs to the field of power transmission and transformation equipment, and relates to a 220KV vehicle-mounted mobile transformer, a transport vehicle adopts a gooseneck type hydraulic axis vehicle, and a transformer adopts a self-coupling three-phase three-winding forced oil circulation air-cooling no-load voltage regulation high-impedance transformer; a high-voltage outgoing line structure is arranged at the tail end of the oil tank and comprises a high-pressure oil-SF6 sleeve inserted into the end of the oil tank, a medium-voltage outgoing line structure is arranged at the head end of the oil tank and comprises a medium-voltage oil-air sleeve communicated with the lower middle portion of the side wall of the oil tank, and a low-voltage outgoing line structure is arranged on the oil tank cover. The low-voltage outgoing line structure comprises a low-voltage oil-air sleeve and a low-voltage busbar, the oil tank is communicated with an air cooler installed at the position close to a vehicle head, the terminal box and the air cooling control cabinet are integrated into the control cabinet in a two-in-one mode, the control cabinet is installed between the air cooler and the vehicle head, and the transformer capsule oil conservator is located above an oil tank cover. The requirements for electrical parameters and physical connection of the transformer are met, and the three-phase three-winding 220kV vehicle-mounted mobile substation has feasibility.