36 results about "Slotted line" patented technology

A process of forming a wiring in a semiconductor interlayer dielectric, include simultaneously patterning a via and a slotted line in the interlayer diectric, simultaneously etching the via and the slotted line, and simultaneously filling the via and the slotted line with a metal.

An ultra-wideband common radiating aperture antenna unit disclosed by the invention aims to provide a broadband radiating aperture antenna unit with high polarization isolation, small insertion loss,capable of reducing antenna weight and reducing antenna loss. The invention is realized by the following technical solution, a strongly coupled antenna dielectric layer is embedded with cross-angulararc-coupled patches having adjacent cross-arcs in transition connection, the upper and lower surfaces are etched with cross-shaped microstrip dipole oscillator arm radiating patches, the microstrip dipole oscillator arm radiating patches are divided into symmetrical dipole pairs by four slotted lines, and the horizontal microstrip dipole pair and the vertical dipole pair are respectively located on upper and lower sides of the layer structure, so that the two dipole pairs are mostly used as the basic unit of the antenna, and in the space, represent in a structure of being separated by the cross partition, being correspondingly overlapped up and down, and being symmetrically coupled to the balanced feeding, thereby forming an ultra-wideband working antenna unit with high isolation, low cross polarization and strong coupling effect for generating mutual capacitive loading feed.

The invention provides a wireless terminal and an antenna thereof. The antenna comprises an antenna feeder, a grounding element, a metal radiating unit with a slotted line and a matching point located at the gap of the slotted line, wherein the grounding element is located around the metal radiating unit with the slotted line, and a gap is left between the grounding element and the metal radiating unit with the slotted line. In the invention, the antenna is directly engraved on a circuit board or the antenna is connected with the circuit board by means of welding, cables and the like, so that the expense for specially manufacturing an antenna support, unmolding and the like is saved, the project expense is reduced, and the cost is reduced. The structure design requirement of the wireless terminal is well satisfied.

The invention discloses an antenna for generating radial spreading RF OAM wave beams based on an annular travelling wave antenna. The integral structure of the antenna includes a metal annular cavity, a circular ring slit is formed in one side surface of the cavity, the metal annular cavity is formed by bending a rectangular waveguide, the width of the metal annular cavity serves as the broadside of the rectangular waveguide, the height of the side surface serves as the narrow side of the rectangular waveguide, the slit is arranged in the middle of the narrow side, the perimeter of the metal annular cavity equals the vertical length of the rectangular waveguide, the sidewall of the metal annular cavity is provided with an annular loudspeaker, the annular loudspeaker is composed of two parts in up and down symmetry, a slit is formed at the bottom end of the annular loudspeaker during combination, and the position of the slit corresponds to the circular ring slit in the middle of the narrow side of the annular metal cavity. The antenna structure of the invention is formed by combining a resonant cavity of the rectangular waveguide with the antenna structure of the annular travelling wave antenna, the channel capacity of a direct channel can be improved, the transmission distance is increased, and the transmission efficiency of the communication system is improved.

The invention discloses a high-power microwave mode-conversion antenna based on a diffraction period structure and belongs to the technical field of microwave antennas. The antenna is composed of a primary feed source and an antenna array surface, wherein the primary feed source is a mode exciter capable of generating a symmetrical mode of a rotary shaft and the antenna array surface is subjectedto feeding by adopting a positive feedback manner; the antenna array surface is formed by periodically arraying a plurality of transmitting units formed by overlapping a plurality of layers of slottedmetal thin plates up and down. According to the antenna disclosed by the invention, the metal thin plates with slotted lines are used as the antenna array surface; compared with a traditional microstrip array antenna, the antenna has the advantage that the power capacity is greatly improved; the symmetrical mode of any rotary shaft can be converted into a single linear polarization mode, so thatthe antenna has a wide application field; the antenna also has the advantages of high gains, low sections, simple structure, easiness for processing and the like.

The invention provides a miniature ultra-wide-band antenna. The miniature ultra-wide-band antenna comprises a dielectric substrate and metal patches on the upper surface and the lower surface of the dielectric substrate, wherein the metal patch on the upper surface is an antenna patch, and the metal path on the lower surface is a microstrip feeder; the antenna patch comprises an earth plate, a short branch knot and a long branch knot, each of the long branch shot and the short branch shot comprises an internal slot line and an external slot line, the center of the earth plate is provided with a vertically slotted slot line, the upper part of the slotted line is connected to the internal slot line of the long branch knot, the bottom of the slotted line is connected to a circular slot, the edge shapes of the external slotted lines and the internal slotted lines of the long branch knot and the short branch knot adopt exponential type transition curves, and an exponential annular slot is formed between an external slot of the long branch knot and an internal slot of the short branch knot. The overall space of the miniature ultra-wide-band antenna is compact in structure, an antenna backboard is tightly connected with the feeder, a radiation element saves the dimensions while meeting a phase-position requirement in virtue of a coplanar strip line coupling power supply manner, the design is convenient, the principle that the antenna is additionally provided with the exponential annular slot to transfer the radiation of low-frequency points is easy to understand, and the replicability of a miniature scheme is high.

The invention relates to a panel for assembly and a machining technology thereof and a dryer. The machining technology comprises the steps that S1, plate blanking is carried out; S2, laser cutting iscarried out, specifically, laser cutting is carried out on a plate according to the boundary contour of a developing drawing of a finished panel; S3, slotting is carried out, specifically, a pluralityof bent lines are drawn on the plate, and slotting is carried out along the bent lines; S4, bending is carried out, specifically, bending treatment is carried out along slotted lines, one opposite sides are bent first, and then the other opposite sides are bend; and S5, welding and polishing are carried out, specifically, butt joints of the edges are subjected to welding and polishing treatment.According to the machining technology, five visible surfaces of the panel have no side seams which need to be welded, all positions which need to be welded are arranged on the inside side surfaces, namely, the invisible surfaces, line disappearance and chromatic aberration of the visible surfaces after welding and polishing are avoided, and an integral attractive effect is achieved. Meanwhile, themachining technology of the panel can effectively simplify the operation steps of bending and effectively ensure the overall flatness and attractive degree of bent parts.

The present invention refers to a method to provide slots in pipes and, more specifically, to a method to provide slots in metal pipes used to extract oil or to form slotted lines, wherein said slots are specially designed to avoid the intake of impurities while pumping oil. More specifically, the method consists of the following steps: a) external cleaning of the pipe (1) with slag jetting to remove the protecting layer that comes from its manufacture or to remove the impurities due to its oxidation; b) placing the pipe (1) on the receiving table by the set of motors (2) to be subsequently transferred to the cutting table (3), by means of motors (4); c) positioning and fixation of the pipe in the cutting cabin (5) by screwing the pneumatic rotating plate (6); d) execution of the first sequence of slots in the pipe by means of laser or plasma, in a refrigerated environment, by making a first slot with pre-defined power and subsequently the opening of the slot with determined length and thickness, according to the characteristics of the pipe, with said slot having an initial section with parallel shape and subsequently with divergent section; e) angle rotation of the pipe by means of turning the rotating plate (6) to make the second sequence of slots, in the opposite direction of the first sequence and then successively on the whole perimeter of the pipe to meet the desired specification; f) removal of the sludge and impurities generated by the cut by the sleeves (7); g) internal cleaning of the slotted pipe with slag jetting; h) visual inspection of the slotted pipe to correct failures and possible imperfections with MIG soldering; and i) painting to provide a uniform visual aspect to the slotted pipe.

The invention relates to a roller machine, a bobbin winding margin detection device and a use method of the bobbin winding margin detection device. Because the outer surface of a spool of a bobbin isprovided with a light-reflecting detection surface, a bobbin case is provided with a detection window, the outer side of the bobbin case is provided with a probe of a sensor, after a stitch on the spool of the bobbin is going to use up to make the light-reflecting detection surface exposed, the probe of the sensor can receive light rays transmitted by the detection window from the light-reflectingdetection surface and transmit the light rays to a sensor controller through optical fiber, the sensor controller judges the stitch margin on the spool according to the intensity of the received reflected light, and when the stitch margin is less than a set threshold, the sensor controller transmits alarm information to a sewing machine controller.

The invention discloses a compact micro-strip balance filter based on slotted line structures. The compact micro-strip balance filter based on the slotted line structures comprises a first filter and a second filter, wherein the first filter and the second filter are formed on a dielectric substrate The first filter and the second filter respectively comprise a micro-strip line structure located on the upper layer of the dielectric substrate and a slotted line located on the lower layer of the dielectric substrate. The first filter and the second filter are the same in structure and are symmetric mutually. The slotted line of the first filter is integrally connected with the slotted line of the second filter. The compact micro-strip balance filter has a very wide difference mode signal passband which internally has the very high common-mode rejection characteristic, a circuit is simple, and machining is easy.

The invention relates to the field of liquid crystal display, in particular to a lateral entrance type reflector plate and a backlight module containing the same. The lateral entrance type reflector plate comprises a mixing portion and an installation portion. The mixing portion and the insulation portion are divided by roulettes. Transmitting openings are formed in the mixing portion, the transmitting openings close to the roulettes are corresponding to an LED light source interval positions. The reflector plate of the mixing portion is attached to an upper surface of a light guide panel by folding the roulettes. Most of light ray of heat pot regions close to the LED light source side is reflected back to the light guide panel to continuously generate reflection, refraction and scattering to enable the integral light guide panel to light uniformly through the arrangement of the transmitting openings, the hot spot phenomenon is avoided, the light utilization ratio is improved, and the backlight module and a liquid crystal displayer having good effect, high energy utilization ratio and narrow frames are produced.

An electrical cable assembly including an electrical cable (10) and an electrical connector (12) connected to the electrical cable has a housing (20,22) thereon defining a passage therethrough for the electrical cable and opposed housing ends circumscribing the cable, one of the housing ends being in facing relation to the electrical connector. The housing has an EAS member (42) secured therein aside the housing passage. An article surveillance unit has first and second housing members joined to one another and defining a seam line, one of the first and second housing members defining structure overlapping the seam line.

The present invention discloses a "Z" -shaped pattern slotting structure applicable to a thin-film PERC battery. The "Z" -shaped pattern slotting structure comprises a silicon substrate, a passivationfilm arranged on the back surface of the silicon substrate, and slotted lines arranged on the passivation film; the slotted lines comprise a plurality of equally spaced horizontal laser slots and a plurality of equally spaced vertical laser slots; the horizontal laser slots and the vertical laser slots have the same length; the horizontal laser slots and the vertical laser slots are connected endto end to form "Z" -shaped slotted lines; a plurality of slotted lines are equidistantly arranged on the surface of the passivation film. According to the slotting structure of the passivation film on the back surface of the PERC solar battery provided by the present invention, the aluminum paste on the back surface of the battery is in good contact with the silicon wafer, and the battery efficiency is slightly improved, efficiency improvement is more reflected in the increase of the open-circuit voltage and the filling, especially for thin silicon wafers; and the crushing rate of the slottedpattern batteries is reduced, and the warpage is reduced.

A broadband GPS antenna, the choke ring is composed of a multi-layer concentric metal ring wall with a central cavity and a common metal floor under the multi-layer concentric metal ring wall, the output SMA connector is installed under the metal floor and connected to the support Connection; two pairs of double-armed helical units and a broadband impedance transformer are installed in the central cavity of the choke ring; the inner tube of the coaxial sleeve and the outer tube of the coaxial sleeve have symmetrical slots, the symmetrical slots are in the same direction and the slotted lines are coupled ; One symmetrical arm of the double-arm spiral unit is directly welded to the upper and lower ends of the coaxial sleeve outer tube; the upper end of the other symmetrical arm bridges the upper end of the coaxial sleeve inner tube and the coaxial sleeve outer tube by welding, and its lower end Welded at the lower end of the outer tube of the coaxial sleeve; the lower end of the inner tube of the coaxial sleeve and the outer tube of the coaxial sleeve are sealed and connected by brazing; the upper end of one side of the symmetrical groove of the inner tube of the coaxial sleeve is coaxial with the center through a short circuit arc The inner conductor is connected, and the lower end of the inner conductor is connected to the output SMA connector through the coaxial medium support terminal.