51results about How to "No dielectric loss" patented technology

A solar air conditioner consists of tubular energy collectors, an energy-storing part, an automatic light-electric inter-compensator, an exchanger, one-way valves, solenoid three-way valves, a condenser, a distiller, a pressure-reducing throttle valve, an enhancer, pressure-regulating valves, a relay console, a blower, and conveying and conducting pipes. Its outdoor unit consists of the tubular energy collectors and energy storing part with the exchanger and the automatic light-electric inter-compensator inside. The exchanger is connected with the condenser and then enhancer via one-way valves and solenoid three-way valves and pressure-regulating valves. The distiller with the relay console and blower is connected with the condenser and enhancer at both ends of the distiller respectively. The said inter-compensator is connected with relay console via electric wires. The conveying and conducting pipes make connection of all parts. It has a simple structure, saves energy, runs in a closed loop at low cost stably and durably, without media loss and noise, and is easy to be used widely.

This invention discloses a photocatalytic ozone tube. The photocatalytic ozone tube comprises: an end cover, an ultraviolet lamp tube fixed on the end cover, a tubular network electrode, a quartz tube and a stainless steel tube. The ultraviolet lamp tube is set in the tubular network electrode to form a photocatalytic region between the ultraviolet lamp tube and the tubular network electrode. The tubular network electrode is in the stainless steel tube, and the quartz tube is between the tubular network electrode and the stainless steel tube to form an ozone generation tube. The oxidation rate and efficiency of ozone are increased by photocatalysis, thus ozone is decomposed into OH free radicals. Neutral, acidic and basic organic matters that cannot be degraded by ozone alone can be oxidized with an oxidation rate 10-10 to the power 4 times that of ozone or ultraviolet. In this photocatalytic ozone tube, organic matters can be completely degraded into CO2 and water.

The invention relates to a composite crystal change modification method of cotton fiber. According to the method, the cotton fiber is placed in a closed container, a modification medium is added, pressure is raised to modification pressure, then, the pressure is released instantly, the combined effect of vacuumization, high-speed centrifugal rotation and drafting and microwave is used for removing the modified medium, and therefore composite crystal change and modified cotton fiber can be obtained. According to the crystal change and modified cotton fiber, pores are increased, degree of crystallinity is reduced, the fiber is soft, and size stability, flexibility, dyeing performance and the like of products are improved; the method of pressure instant release is adopted, and the fluffiness and flexibility of the fiber are improved greatly; the combined effect of vacuumization, high-speed centrifugal rotation and drafting and microwave is adopted, therefore, fiber quality is further improved, and modification efficiency is greatly improved.

The invention discloses a radial multi-beam gap waveguide slot antenna array applied to a microwave band. The radial multi-beam gap waveguide slot antenna array comprises three parts of a gap waveguide radial feeding network, a slot antenna array and a coaxial-gap waveguide conversion structure. By a design of a bottom-layer feeding network and each slot sub-array in a top layer in a radial direction, generation of random numbers of radial wave beams can be achieved, the size and the direction of each wave beam are independently adjustable, and a beam split phenomenon is proposed according toa certain radial asymmetric construction mode of the antenna.

The invention relates to a novel planar double inversed-L antenna comprising two patches, one feeder line, one grounding plate and one short-circuit pin. The two patches are juxtaposed on the same plane to form the upper half part of the novel planar double inversed-L antenna, wherein one patch is connected with the grounding plate through the short-circuit pin, and the other patch is connected with the grounding plate through the feeder line. The short-circuit pin and the feeder line are respectively arranged on the apexes of the two patches. The novel planar double inversed-L antenna adoptsthe coaxial feeding form, has simple structure, small size and large gain, is easy to integrate and regulate, causes no dielectric loss and can be widely applied to the wireless communication field.

The invention relates to an LED (light emitting diode) high-efficient conversion hollow glass curtain wall and a manufacturing method. The LED high-efficient conversion hollow glass curtain wall forms an LED hollow glass display layer by overlapping a glass or toughened glass layer and an LED lattice glass mold layer, wherein one surface of the LED lattice glass mold layer is embedded with a layer of conductive metal lattice network formed by an LED positive pole and negative pole, or one surface of the LED lattice glass mold layer is provided with a conductive metal lattice network formed by conductive films; an LED chip is positioned on a crossed point of the conductive metal lattice network; the back glass or back toughened glass is adhered at the back of the LED lattice glass mold layer through a hollow aluminum strip, and the area of the back glass or back toughened glass is less than that of the LED lattice glass mold layer, so that periphery parts of the LED lattice glass mold layer are exposed; and an aluminum alloy subframe is formed by a front slot, a hollow cavity and a rear slot.

The invention provides an ultra-wide band multi-path coaxial power distribution synthesis structure based on a high-odor oval function curve. A coaxial gradual change structure based on the high-odor oval function curve is adopted, an input signal enters a high-odor oval function curve coaxial gradual change structure from an input end coaxial connector, and is distributed onto a circular disc in a uniform-amplitude and same-phase way, multi-path coaxial probes in uniform distribution are led out from the edge of the circular disc to be coupled onto a plurality of independent amplifier assemblies corresponding to the multi-path coaxial probes for respectively carrying out power amplification, each coaxial probe adopts a step cylinder structure with the wider upper part and the narrower lower part, the amplified multi-path signal is synthesized and output through a structure completely identical to a power splitter structure. The ultra-wide band multi-path coaxial power distribution synthesis structure has the advantages that the difficult problem of high-power synthesis of the ultra-wide frequency band is solved, the high-odor oval function curve coaxial gradual change structure is adopted, in addition, the step coupling probe conversion is carried out, the signal energy high-efficiency distribution and synthesis of the ultra-wide frequency band are realized, the structure is compact and symmetrical, the heat radiation performance is good, the high-degree modular design is adopted, the processing and the assembly are simple, and the reliability is high.

The invention relates to a composite crystal change modification method of cotton yarn. According to the method, the cotton yarn is placed in a closed container, a modification medium is added into the container, pressure is raised to modification pressure, then, the pressure is released instantly, the combined effect of vacuumization, high-speed centrifugal rotation and drafting and microwave is used for removing the modified medium, and therefore composite crystal change and modified cotton yarn can be obtained. According to the crystal change and modified cotton yarn, pores are increased, degree of crystallinity is reduced, the yarn is soft, and therefore size stability, flexibility, dyeing performance and the like of products are improved; the method of pressure instant release is adopted, and the fluffiness and flexibility of the yarn are improved greatly; the combined effect of vacuumization, high-speed centrifugal rotation and drafting and microwave is adopted, therefore, yarn quality is further improved, and modification efficiency is greatly improved.

The invention provides a high-isolation radial power synthesis amplifier with broadband air micro-strips, which comprises a high-isolation radial power divider / synthesizer with broadband air micro-strips and at least one power amplifier module. The high-isolation radial power divider / synthesizer with the broadband air micro-strips comprises an input waveguide, a coaxial transition structure, a radial waveguide, the radial air micro-strips and at least one output waveguide, wherein the coaxial transition structure is arranged between the input waveguide and the radial waveguide, the center of the radial waveguide is connected with the input waveguide through the coaxial probe transition structure, the air micro-strips in radial distribution are connected to the periphery of the radial waveguide, a film resistor disc is pasted between each two adjacent air micro-strips, and each air micro-strip is connected with one output waveguide. The high-isolation radial power synthesis amplifier with the broadband air micro-strips can realize high-efficiency broadband power synthesis with one-division multiplexing and in single-mode operation.

A high-isolation miniaturized radial power splitter / combiner, including a radial power splitter / combiner inserted into a resistive diaphragm and a rectangular waveguide-circular waveguide mode conversion structure; the radial power of the inserted resistive diaphragm The distribution / synthesizer includes an input circular waveguide port, an impedance transformation structure, and more than one output rectangular waveguide, and the above three structures are connected in sequence; the rectangular waveguide-circular waveguide mode conversion structure includes sequentially connected input rectangular waveguides, one-to-four-way power Distribution network, waveguide expansion transition structure, output circular waveguide. The power distributing / combining device of the present invention can realize power distributing / combining with primary power division and multiplexing, broadband, low loss, miniaturization, easy assembly, and port isolation.

The invention discloses a planar dual-polarized millimeter-wave broadband frequency selective surface, belongs to the technical field of antenna engineering, and relates to a dual-polarized frequency selective surface. The frequency selective surface is formed by splicing and combining frequency selective surface unit arrays. The frequency selective surface unit is a metal square ring structure, and each side of the ring structure is provided with two strip-shaped dipoles protruding inward: The first dipole and the second dipole, the height of the first dipole is greater than the second dipole, and the included angle between each dipole and its corresponding ring structure side is the same and not 90°, each dipole The direction of the acute angle opening between the sub and its corresponding ring structure side is consistent. The traditional ring unit is not suitable for the integrated connection structure and requires dielectric support; the traditional dipole-shaped unit has a small passband bandwidth and high in-band loss. By adopting the deformed square ring unit, the invention obtains the bandwidth similar to the traditional ring unit and lower in-band loss, and can be realized through metal processing.