43 results about "Microribbon" patented technology

The invention discloses a multilayer ceramic antenna and a preparation method thereof. The ceramic antenna comprises a ceramic medium and multiple layers of radiating conductor belts positioned in the ceramic medium, and is characterized in that the ceramic antenna further comprises peripheral end sealing metal and edge isolating holes, wherein by adopting the edge isolating holes, vertical overlapping parts of the multiple layers of radiating conductor belts protrude from the surface of the ceramic medium; the edge isolating holes are used for isolating adjacent peripheral end sealing metal; and the peripheral end sealing metal is used for interconnecting the multiple layers of radiating conductor belts. The multilayer ceramic antenna disclosed by the invention has the advantages that through the isolating holes and chamfers positioned in appropriate positions of the edge of the periphery of the ceramic medium, the vertical overlapping parts of the multiple layers of radiating conductor belts and the vertical overlapping parts of the multiple layers of radiating conductor belts with an external micro strip feeder line are enabled to protrude from the surface of the ceramic medium and be isolated from each other, and the multiple layers of connectors can be conveniently connected through the end sealing metal, thereby realizing the interconnection among different metal layers under the circumstance that a through-hole is not needed; and besides, a large quantity of ceramic media can be stacked to be edge-punched and chamfered at once.

The invention discloses a cobaltosic oxide micro-ribbon with high peroxidase-like activity and stability and a preparation method therefor. According to the Co3O4 micro-ribbon with high peroxidase-like activity and stability, the micro-ribbon is of a ribbon-shaped structure formed through connecting Co3O4 single-crystal grains. The preparation method comprises the steps: firstly, dissolving polyvinyl pyrrolidone (PVP) into ethanol, adding a cobalt nitrate solution into the solution after the PVP is completely dissolved, and carrying out uniform mixing, so as to obtain spinning sol; then, carrying out spinning on the spinning sol by adopting an electrostatic spinning method, so as to obtain gelatinous fibers, and carrying out drying; and finally, carrying out staged calcination on the dried gelatinous fibers, thereby obtaining the Co3O4 micro-ribbon. When the micro-ribbon is used as mimetic peroxidase, activity can be shown in a relatively wide pH and temperature range; a sample shows relatively good affinity to H2O2 and TMB; and meanwhile, the micro-ribbon with relatively high specific surface area shows relatively high peroxidase-like activity and stability.

The invention relates to a full-bridge circuit and a fast recovery diode, which solves the technical problem of bearing a small driving current. By adopting the full-bridge circuit, the ceramic substrate is provided with a copper-clad microstrip and a chip, and a copper-clad microstrip There is a copper bridge for connection between the strip and the chip. One end of the copper bridge is connected to the chip, and the other end is connected to the copper clad microstrip. The contact between the two ends of the copper bridge and the chip or the copper clad microstrip is the lead foot mechanism; the copper connecting bridge is not in contact with the corresponding chip and is divided into a suspension mechanism, and the technical solution of the hollow space between the suspension mechanism and the ceramic substrate solves this problem better and can be used in semiconductor module packaging.

The present invention is directed towards an article suitable for attachment to facial skin or other surfaces, which comprises microfibrils and continuous microribbons. The article provides good sealing when used on a regular skin, and on a challenge skin surface with facial hair, sweat and acnes. The article also provides good adhesion and sealing on any other rough surfaces, and can be used repeatedly against different surfaces. These dry adhesives can be used for improving sealing of mask respirators, swimming goggles, or for other applications such as medical bandage, working gloves, and protective clothing seal.

The invention provides a TiO 2 Microwave-based ceramic substrate material and its preparation method and application, it is composed of two crystal phases, the ceramic main crystal phase is rutile TiO 2 , the second crystal phase is MgTi 2 O 5 ; Ordinary oxide ZrO 2 , Nb 2 O 5 , SnO 2 Enter TiO as a dopant 2 A solid solution is formed in the crystal lattice; MnCO 3 , CoO, CuO, ZnO, Al 2 O 3 As a dopant in ceramics, it plays a role in improving the quality factor of ceramics. The general chemical formula is Ti 1‑x A x O 2 +yMgO+zB, its preparation method includes batching, ball milling, granulation, molding, sintering, and the TiO prepared by the method of the present invention 2 The microwave-based ceramic substrate material has a high Q×f value (20000~40000), high dielectric constant (80~95) and serialized dielectric constant temperature coefficient (‑550~‑900) through laboratory research and testing. The composite ceramic of the invention is suitable for making substrate materials of microwave capacitors, and can also be used for making materials of adjustable microwave devices such as microstrip filters.