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.

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 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.

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 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.

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.

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.

For use in an amplifier configuration including a high-power amplifier and a low-power amplifier which are always interconnected in terms of high frequencies and between which switching is made using no switches, a highly stable high-frequency power amplifier module with high isolation between the amplifiers is provided. To reduce wrapping around from a low-power amplifier section in an activated state to a high-power amplifier section in a deactivated state or from the high-power amplifier section in an activated state to the low-power amplifier section in a deactivated state, an input matching circuit having high isolation characteristics is included in an input matching circuit portion which does not have much to do with amplifier efficiency. Switching of each of the amplifier sections between an activated state and a deactivated state is effected by control using bias input terminals.

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.

A dual-polarized dual-feeding planar antenna includes a first substrate, a second substrate and an air layer. The first substrate includes at least one first microstrip and at least one patch electrically connected with each other. The second substrate is disposed on one side of the first substrate and includes a common ground layer, a slot, a first feeding port, a second feeding port and a second microstrip. The slot is disposed corresponding to the patch. The air layer is disposed between the first substrate and the second substrate. The first microstrip is electrically connected to the first feeding port through a conducting wire. The patch couples to the second microstrip via the slot, and the second microstrip is electrically connected to the second feeding port.

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.

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.