126results about How to "Isolation" patented technology

A distributed broadband, omni-dual-band monopole antenna system for use in a Wi-Fi access point. The distributed omni-dual-band antenna system may include an antenna array that includes 4, 6, or 8 monopole antennas arranged in a circular array fashion along the perimeter of the access point. Each monopole antenna may be associated with a single Wi-Fi radio of the access point, and each of the antennas for the different radios are interleaved in order to provide omni-coverage with minimal distortion; that is, each antenna of the access point is alternated with antennas for different radios. A broadband printed omni-dual-band monopole antenna comprising three horizontal radiating elements arranged in an S-shape and a single vertical radiating element connected to the bottom-most horizontal radiating element is also disclosed.

An adaptive antenna used in a receive only mode with a separate omnidirectional transmit antenna. The arrangement is especially effective for small, handheld wireless devices. The transmit antenna maybe integrated with the receive array by utilizing a horizontally polarized transmit and vertically polarized receiver ray. In other embodiments, the transmit antenna may be physically separate and not integrated with the receive array. In either case there is separate receive and transmit signal port as an interface to radio transceiver equipment. The use of an adaptive antenna in the receive only direction has the potential to increase forward links capacity to levels equal to or greater than reverse link capacity. This allows for a significant increase in the overall number of users that may be active at the same time in a wireless system.

An antenna apparatus includes a first feeding point and a second feeding point provided at respective positions on an antenna element. The antenna element is excited through the first and second feeding points simultaneously so as to operate as a first antenna portion and a second antenna portion simultaneously, the first antenna portion and the second antenna portion correspond to the first and second feeding points, respectively. The antenna element further includes, between the first and second feeding points, an electromagnetic coupling adjuster for making an amount of isolation between the first and second antenna portions.

An antenna system internal to a radio device, the system comprising separate antennas and having separate operating bands. The system is implemented as decentralized in a way that each antenna is typically based on a small-sized chip component (310; 320; 330; 340; 350; 360; 610), which are located at suitable places on the circuit board (PCB) and possibly on also another internal surface in the device. The chip component comprises a ceramic substrate and at least one radiating element. The operating band of an individual antenna covers e.g. the frequency range used by a radio system or only the transmitting or receiving band in that range. At least one antenna is connected to an adjusting circuit with a switch, by which the antenna's operating band can be displaced in a desired way. In this case the operating band covers at a time a part of the frequency range used by one or two radio systems. The antennas can be made small-sized, because a relatively small bandwidth is sufficient for an individual antenna, when there is a plurality of antennas. When the bandwidth is small, a material with higher permittivity can be chosen for the antenna than for an antenna having a wider band, in which case the antenna dimensions can be made correspondingly smaller. In addition, a good matching of the antenna is achieved on the whole width of each radio system, because the matching of a separate antenna having a relatively narrow band is easier to arrange than that of a combined multiband antenna.

Camera mount systems are disclosed herein. In one embodiment, a camera mount system is provided, including a first and a second axial arm configured to mount a camera system. The camera mount system further includes a plurality of pistons configured to attach the first and the second axial arms to a vehicle frame. The camera mount system also includes a plurality of springs configured to attach the first and the second axial arms to the vehicle frame, wherein the first and the second axial arms are disposed underslung to the vehicle frame, and wherein the pistons enable a first movement of the first and the second axial arms about a geometric plane and the springs enable a second movement of the first and the second axial arms along an axis normal to the geometric plane.

A radome covers an antenna substrate of a millimeter-band radar apparatus, with a partition wall formed integrally in the radome separating the internal space of the radome into a first internal space, located in correspondence with a transmitting antenna section, and a second internal space, located in correspondence with a receiving antenna section. Increased isolation between transmission and reception is achieved thereby, by reducing the amount of transmitted radar waves which directly reach the receiving antenna section.

A multiport amplifier and a wireless device using the same are obtained in which isolation among output terminals is improved, whereby the quality of communication is improved. The multiport amplifier includes an input hybrid, an output hybrid, a plurality of amplifiers and a plurality of gain and phase control circuits that are inserted between the input hybrid and the output hybrid, a plurality of output coupling circuits that are inserted between the output hybrid and a plurality of output terminals so that they receive output extraction signals corresponding to a plurality of output signals, and a feedback circuit including a frequency selection circuit that is inserted between the plurality of output coupling circuits and the plurality of gain and phase control circuits.

The invention relates to a process for preparing a rust-bearing rust-proof heavy-duty coating and belongs to the technical field of rust-bearing rust-proof heavy-duty coating preparation. The process comprises the following steps: 1) stirring; 2) grinding; 3) dispersing; 4) preparing a resin; 5) preparing the coating; and 6) stirring. The production process is simple and quick, and the produced coating has high permeability, high solid content and low viscosity and can passivate active and harmful iron compounds in a rust layer into harmless fillers.

The present invention relates to an antenna system including at least two antenna modules operable for transmitting and / or receiving radiation in certain common frequency band. The at least two antenna modules are collinearly arranged along a common axis so as to provide low gain along the axis, and are spaced apart from one another along this axis by a distance of at least a few nominal wavelengths of the common frequency band. Each two locally adjacent antenna modules of the at least two antenna modules operate with substantially mutually orthogonal polarizations of radiation, thereby suppressing electromagnetic coupling between the antenna modules in the common frequency band.

A communication device including a first antenna, a second antenna, a ground element, and an isolation element is provided. The ground element is coupled to a conductive plane. The isolation element is disposed between the first antenna and the second antenna and includes a first portion and a second portion. A first end of the first portion and a first end of the second portion are respectively coupled to the ground element, and a second end of the first portion is spaced apart a coupling distance from a second end of the second portion.

The invention discloses an iron phosphate lithium battery power supply management system used for service robots and a working method. The system comprises a iron phosphate lithium battery set, and the iron phosphate lithium battery set is connected with a lithium battery hardware protection circuit. The input end of the lithium battery hardware protection circuit is connected with a charging interface, and the output end of the lithium battery hardware protection circuit is connected with a power supply input interface. The power supply input interface is connected with a power loop and a control loop respectively through a main switch. The output end of the lithium battery hardware protection circuit is connected with a power supplying power supply of an electric quantity measurement and display circuit, and the power supplying power supply of the electric quantity measurement and display circuit supplies power for the electric quantity measurement and display circuit. The electric quantity measurement and display circuit comprises an STM32 chip, wherein the STM32 chip conducts battery remaining power percentage SOC estimation in a mode of combining an ampere-hour integral method and an open circuit voltage method. By means of the system, the power supplies of the service robots can be managed, stable work of an iron lithium battery set is guaranteed, the battery set information is obtained in real time, and the system has the function of power supply expansion.

An antenna apparatus includes an antenna element having at least one slit, a first feeding point provided at a position on the antenna element, and a second feeding point provided along the slit. The antenna element is excited as an electric current antenna through the first feeding point, and at the same time, the slit is excited as a magnetic current antenna through the second feeding point.

The invention relates to a novel clutch driven disc intersection angle expansion damping device which comprises a main shaft sleeve plate, a predamping shaft sleeve plate and a spline shaft sleeve, wherein one side of the main shaft sleeve plate is provided with a predamping shaft sleeve plate, and the other side is provided with a first-stage forward shaft sleeve plate and a first-stage reverse shaft sleeve plate; the predamping shaft sleeve plate, the main shaft sleeve plate, the first-stage forward shaft sleeve plate and the first-stage reverse shaft sleeve plate are connected in series with the spline shaft sleeve in a spline tooth way; and the spline shaft sleeve is connected with an input shaft of a gear-box. The invention has forward and reverse large-angle and multistage damping performance, and all stages have independent damp.

An antenna device is provided and includes a bottom, two monopole antennas, and a cover assembled with the bottom. A projection plane is defined perpendicular to the bottom. The two monopole antennas substantially symmetrically protrude from the bottom, and a gap is formed between the two monopole antennas. Projections of the two monopole antennas on the projection plane intersect with each other. Each of the two monopole antennas includes a first frequency receiving portion adjacent to the bottom, a second frequency receiving portion, and a connection portion located between the first frequency receiving portion and the second frequency receiving portion. A slot is formed through the connection portion to adjust a received frequency of the first or second frequency receiving portion. An accommodating space is formed between the cover and the bottom to accommodate the two monopole antennas.

The invention discloses a multi-functional liquid plant protection film agent. Natural raw materials such as fulvic acid, rice bran wax and mixed fat are emulsified to form thick water emulsion, and the emulsion belongs to green, low-carbon and environmentally-friendly products which are developed in a sustainable mode. The emulsion with water is sprayed on the full surfaces of plants to form a liquid film, before the liquid film is solidified, the film can paste pathogenic bacteria, spores of the bacteria, soft pests and ova of the pests and block pest air holes to enable the pests to be inactivated and stifle, the pathogenic bacteria, the spores of the bacteria, the soft pests and the ova of the pests are attached to the surfaces of the plants, after the film is naturally solidified, a solid protective micro film layer which can not be seen by naked eyes is formed on the surfaces of the plants, and seals and protects the plants, the film layer repels and isolates encroaching of multiple diseases and pests on crops and has the functions of conserving water, resisting drought, preventing freezing, preventing dry hot (cold) wind, preventing rain and preventing lodging, the use number of pesticides and the use amount of chemical fertilizer can be reduced, environment and food safety can be protected, meanwhile, labor intensity of farmers can be reduced, investment by the farmers can be reduced, and the aim that the production and income are greatly increased is achieved.

A communication device including a ground element and an antenna system is provided. The antenna system is adjacent to the ground element. The antenna system includes at least a first antenna, a second antenna, a connection element, and a resistive element. The second antenna is adjacent to the first antenna. The connection element includes a first portion and a second portion, wherein the first portion is coupled to the first antenna, and the second portion is coupled to the second antenna. The resistive element is coupled between the first portion and the second portion of the connection element. The connection element and the resistive element increase the isolation between the first antenna and the second antenna.

The invention discloses a wheat powdery mildew inhibitor. The wheat powdery mildew inhibitor comprises, by weight, 2-40 parts of a loss control regulation agent, 2-200 parts of modified silicone oil, 0.01-0.1 part of nano-selenium and 759.9-995.99 parts of water, wherein the loss control regulation agent is prepared by mixing aminated attapulgite with micro-nano biosilicon / carbon according to a mass ratio of (3-5):(1-2). The invention also discloses a preparation method of the wheat powdery mildew inhibitor. The wheat powdery mildew inhibitor and the preparation method of the wheat powdery mildew inhibitor have the advantages that the preparation is simple, the operation is simple, and the cost is low; the wheat powdery mildew inhibitor can be produced in a large scale mode, and since nanocomposite is prepared from attapulgite, the modified silicon oil and nano-selenium, when the nanocomposite is sprayed on wheat leaves, a net-shaped nano protective layer can be formed through self-assembly so as to effectively isolate pathogen invasion; the inhibitor is natural, free of pollution and side effects, environmentally friendly and safe, and can reduce the incidence of wheat powdery mildew by 70-90 %.

The invention relates to a preparation method of a novel titanium-nickel medical implantation material, particularly a composite treatment method for preparing a titanium dioxide / aluminum oxide mixture by depositing titanium on a titanium-nickel surface and performing micro-arc oxidation. The method comprises the following steps: firstly, by using a titanium-nickel alloy base as a workpiece, eliminating the oxide film on the workpiece surface by a mechanical-chemical mixed method; secondly, depositing titanium on the workpiece surface by a plasma surface alloying technique; thirdly, carrying out micro-arc oxidation on the workpiece in a micro-arc oxidation device; and finally, carrying out ultrasonic cleaning on the workpiece, and drying to obtain the finished product. The material can effectively isolate the precipitation of the nickel element in the titanium-nickel alloy, and the ceramic film layer of the titanium base surface subjected to micro-arc oxidation has the advantages of fewer surface voids, high hardness, high corrosion resistance, favorable insulativity and high binding force with the base metal. The method has the characteristics of favorable technical repetitiveness, controllable quality and the like, is simple to operate, can be widely used for surface modification treatment of titanium-nickel alloys, and effectively improves the application range and level.

A high-frequency module (1) includes a multilayer dielectric substrate (2), an RFIC (21), and an array antenna (13). The array antenna (13) includes a plurality of first patch antennas (11) having identical polarization directions with each other, and a plurality of second patch antennas (12) having identical polarization directions with each other, which are polarization directions positioned between two orthogonal polarizations of the first patch antenna (11). The first patch antenna (11) and the second patch antenna (12) simultaneously operate as a transmitting antenna or a receiving antenna.

The invention relates to a coaxial in-arc wire feeding and out-arc powder feeding TIG electric arc additive manufacturing device. The device comprises a SiO2 glass tube, four powder feeding spray nozzles, a tungsten electrode red copper cooling body, a half-cracking hollow tungsten electrode and four powder feeding channels. Four types of alloy powder with different components can be supplied at most through the four powder feeding channels and the powder feeding quantity of each powder feeding channel is adjustable, and additive manufacturing of a functional gradient structure material part is achieved easily, so that material, structure and service performance of the additive manufacturing part are matched optimally.

The invention relates to a carrier jamming restraining device of a radio frequency identification reader-writer. The carrier jamming restraining device of the radio frequency identification reader-writer comprises an antenna, a circulator, a combiner, a power amplifier, a low-noise amplifier, an adjustable gain amplifier, a multiplying unit, a directional coupler, a phase splitter, a digital-to-analog converter, a local oscillator, a low-pass filter, an analog-to-digital converter, a base band signal sending unit, a base band signal decoding unit, a base band approximation phase position amplitude calculation unit and a fine base band phase position adjusting unit. The carrier jamming restraining device of the radio frequency identification reader-writer has the advantages that a carrier counteraction loop is designed, leaked carriers are effectively isolated, received signals and sent signals are effectively separated, and the sensitivity of the reader-writer is improved.

The invention provides a preparation method and application of a coated yeast fermentation product, and provides a preparation method of a coated yeast fermentation product. The method comprises the following steps: 1, preparing a culture medium: using a YPD culture medium as a primary seed culture medium, wherein the fermentation expression medium is a BSM medium. 2, performing fermentation expression. The invention also discloses application of the coated yeast fermentation product. The coated yeast fermentation product is a natural fermentation yeast product, and is rich in vitamins, essential amino acids, enzymes and yeast peptides. The coated yeast fermentation product filtrate can increase the expression of sericin and prevent the reduction of serine protein tyrosine mediated sericin, and the coated yeast fermentation product filtrate can increase the expression of caspase-14 in epidermal keratinocytes in a 3D model. The product can resist bacteria and diminish inflammation, promote wound healing, repair skin barriers and improve skin and mucous membrane immunity.

In a high-frequency switch module, a switch IC is mounted on a multilayer board to define a high-frequency switch module. The multilayer board includes two internal wirings and two internal ground electrodes. The internal ground electrodes are spaced apart from each other at an interval when viewed from a lamination direction of the multilayer board. The first internal wiring is located on the upper surface side of the first internal ground electrode, and is entirely separated from an RF wiring, and the first internal wiring includes a power supply wiring for supplying power to the switch IC. The second internal wiring is located on the upper surface side of the second internal ground electrode, and is entirely separated from the power supply wiring, and the second internal wiring includes a signal wiring through which an RF signal propagates.

The invention discloses a skin repair mask composition used before and after make-up. The mask composition is prepared from water, butanediol, glycerol, erythritol, mycose, pentanediol, an algae extract, sodium hyaluronate, hydrolyzed collagen, hydrolyzed silk, an EGF (Epidermal Growth Factor), a prostheca helichrysum extract, a liquorice root extract, a chamomilla recutita flower extract, glucan, phenoxyethanol, methylparaben, triethanolamine, PE-40 hydrogenated castor oil, Carbomer and essence. The mask composition is suitable for make-up people, is more convenient to use, and has a better effect. By using the mask composition, caring steps before make-up and after make-up removal are reduced, the absorption efficiency of facial treatment essence is increased, and time needed by the skin caring before make-up and after make-up removal is saved.

A mobile terminal is provided that includes a body; a metal frame provided in the body and configured to support a display; a main board provided in a rear surface of the metal frame; a first conductive member arranged in a lateral surface of the body, spaced a preset distance apart from the metal frame, and configured to transceive a first frequency signal; a first connecting portion configured to connect one end of the first conductive member with the metal frame; a second conductive member arranged in a lateral surface of the body, spaced a preset distance apart from the metal frame and having one end which faces the other end of the first conductive member, and configured to transceive a second frequency signal; a slit formed between the other end of the first conductive member and one end of the second conductive member; a second connecting portion configured to connect the other end of the second conductive member with the metal frame; a first feeding line configured to supply power to the first conductive member; a second feeding line configured to supply power to the second conductive member; and a filter connected with the other end of the first conductive member and one end of the second conductive member.

The invention discloses tooth beautifying liquid. The tooth beautifying liquid comprises the following components by weight percent: 55-75% of solvents, 0.1-15% of humectant, 0.1-25% of film forming agent, 0.01-5.0% of covering agent and 0.05-1% of taste screening agent. Due to the mode, the tooth beautifying liquid disclosed by the invention has the advantages that a thin film incapable of being dissolved in the oral environment is formed on the surface of teeth and can cover flaws on the teeth, so that the surfaces of the teeth are smooth and bright; meanwhile, the invasion to the teeth caused by eaten substances is isolated, the teeth can be protected, and the thin film can be removed when teeth are brushed; the use is convenient, and the use safety can be ensured; and compared with a common oral cavity nursing appliance, the tooth beautifying liquid can achieve the effect of rapidly beautifying.