30results about How to "No need to increase the number" patented technology

The invention discloses a substrate integrated waveguide filter which is high in selectivity, small in size and low in loss. The substrate integrated waveguide filter comprises a first metal layer, a first dielectric substrate, a second dielectric substrate, a second metal layer and a metallization through hole array, the first metal layer, the first dielectric substrate, the second dielectric substrate, the second metal layer and the metallization through hole array are sequentially stacked from top to bottom, and a first band-shaped coupling unit and a second band-shaped coupling unit are arranged between the first dielectric substrate and the second dielectric substrate. By means of the substrate integrated waveguide filter, the LTCC technology is adopted for integrating the band-shaped coupling units into resonant cavities of the substrate integrated waveguide filter, a signal transmission channel can be added without increasing the number of the resonant cavities, a transmission null point can be accordingly obtained in an attenuation band, and the selectivity of the filter is improved; meanwhile, the position of the transmission null point can be flexibly controlled by adjusting the resonant frequencies of the band-shaped coupling units, more stages of the resonant cavities are not needed, and the substrate integrated waveguide filter has the advantages of being small in size, light in weight and low in loss. The substrate integrated waveguide filter is suitable for popularization and application in the microwave millimeter wave technical field.

The invention relates to a liquid crystal display device of polydomain vertical orientation mode, comprising a first substrate and second substrate oppositely disposed; a liquid crystal layer between the first substrate and second substrate; a pixel electrode formed on the first substrate; a common electrode formed on the second substrate; a groove or protrusion graved on the pixel electrode or common electrode; a first protrusion and second protrusion alternatively oppositing to the said groove or protrusion on the pixel electrode or common electrode; the first protrusion having first height and the protrusion having second height and the first height is higher than the second height and the first protrusion being alternatively arranged with the second protrusion. The liquid crystal display device can realize 8-domain display without increasing the drive cost and reducing the production good ratio, in order to improve the aberration.

A display device includes: a casing configured by at least one chassis; a display arranged inside the casing; a light guiding plate arranged on a rear face side of the display and has an outer peripheral face at least a part of which is formed as an incident face on which light is incident; a light source unit including a light source arranged to face the incident face of the light guiding plate on a lateral side of the light guiding plate; and a heat dissipating member, to which the light source unit is attached, that dissipates heat generated when the light source is driven. The heat dissipating member or the light source unit is attached to the light guiding plate, and the heat dissipating member and the light source unit can be moved with respect to the chassis in accordance with expansion or shrinkage of the light guiding plate.

The present invention relates to the technical field of mobile communications, and in particular to a precoding method and apparatus for solving the technical problem that an existing codebook solution is not applicable to a new antenna form under 3D-MIMO anymore. Provided is a new form W1, wherein W1 can contain a plurality of block matrices, and each of the block matrices can be represented as a Kronecker product of a matrix Ai and a matrix Bi, so that W can not only support an antenna in a horizontal dimension, but can also support an antenna in a vertical dimension, thereby providing a new codebook for a 3D-MIMO system.

The invention discloses a double-rotor internal combustion engine which comprises an air cylinder, a main shaft, a left rotor, a right rotor, a left intermittent motion mechanism and a right intermittent motion mechanism. The air cylinder comprises an axially-through air cylinder hole, each rotor comprises blades and a supporting body, and each intermittent motion mechanism is a closed differential gear train comprising a non-circular gear pair and can achieve continuous and stable speed change. The left rotor, the right rotor and the main shaft are located in the air cylinder and have coaxial rotational degrees of freedom. The blades of the left rotor and the right rotor are parallel in the radial direction, a combustion chamber is formed by the space between the blades, the two rotors intermittently rotate periodically in the ignition work, air exhaust, air suction and compression processes of the internal combustion engine, the right rotor is static when the left rotor moves, and the left rotor is static when the right rotor moves. The left rotor and the right rotor transmit respective intermittent rotation to the main shaft through the left intermittent motion mechanism and the right intermittent motion mechanism respectively, and the intermittent rotation speed is converted into a constant rotation speed. Under the action of inertia, the main shaft feeds rotation of the main shaft back to the left rotor and the right rotor to control the acceleration, deceleration and static processes of the rotors.

The invention discloses a binding post and a wiring terminal. The binding post comprises at least two wiring structures used for being connected with cables, and the wiring structures are used for being matched with fixing holes of different cables respectively. According to the binding post disclosed by the invention, by arranging the wiring structures connected with the cables and selecting theat least two wiring structures to be respectively matched with the fixing holes of the different cables, the binding post can be connected with the different cables, and the number of the binding posts or the number of the wiring terminals does not need to be increased, so that the space occupied by wiring is reduced; and wiring cost reduction is achieved.

An optical signal modulation pathway, an electro-optic modulator and an optical transmitter. All electrodes on the optical signal modulation pathway except a reference electrode differ from the reference electrode in the material parameters of electro-optic crystals and/or the width of an electric field when the electric field acts in the transverse direction. The phases of input light signals varied by the other electrodes are greater than the phase of the input light signal varied by the reference electrode. In the case that a particular space is occupied by the entire optical signal modulation pathway, when a high level is accessed to the electrodes on the optical signal modulation pathway, as compared to the situation where only the reference electrode is present on the optical signal modulation pathway, the accumulated value of the phases of the input light signals that can be varied by the entire optical signal modulation pathway can be increased by increasing the phases of the input light signals varied, with no need of the increase in the number of electrodes or the length of individual electrodes.

The invention discloses a liquid level tracking type multi-point temperature measuring device and a manufacturing method thereof. The liquid level tracking type multi-point temperature measuring device comprises an optical fiber temperature measuring wire, and the two ends of the optical fiber temperature measuring wire are connected with a liquid surface floating device and an elastic spring correspondingly; when the liquid level tracking type multi-point temperature measuring device is located in a liquid,the liquid surface floating device floats on the liquid surface, the elastic spring sinks inside the liquid, and the optical fiber temperature measuring wire is straightened. The invention providesthe liquid level tracking type multi-point temperature measuring device and the manufacturing method thereof.The problems that a temperature measuring device of a thermal fluid experiment in the prior art cannot track liquid level change, causes serious interference to the fluid around a measuring point, and influences pressure-bearing and sealing of a pressure vessel, the tracking of the height position of the liquid surface is realized, the stability of the measuring point from the liquid surface is ensured, the number of openings of a container are decreased, sealing is easy, and the fluid interference around the measuring point is reduced.