223 results about "Dipole" patented technology

A low band dipole for a dense multiband antenna array has a plurality of dipole arms. The dipole arms have a coupling plate disposed on a first side of a PCB and a conductive trace pattern disposed on a second side of the PCB. The conductive trace pattern has a plurality of resonator block structures that are coupled together by a phase shifting trace along a first edge of the conductive trace pattern and a bandwidth compensating disposed along a second edge of the conductive trace pattern.

The invention belongs to the technical field of microwave antennas, and particularly provides a tight coupling phased array with a tail end unit loaded with asymmetric dipoles. The main structure of the antenna comprises a radiation structure (I) which is composed of frequency selection surfaces which are arranged above folded dipoles and are periodically arranged, dipoles which are symmetrically arranged in a central unit and dipoles which are asymmetrically arranged in an edge unit; and the feed structure II is composed of a gradient microstrip feeder line, a metal floor and a coaxial line. According to the invention, a frequency selective surface is loaded above a folded dipole, a traditional tight coupling phased array is replaced, a heavy dielectric layer is loaded above the dipole, and a 1 * 8 one-dimensional linear array is designed. Besides, by prolonging the length of the folded dipole on the tail end array element, compared with a traditional structure, extra capacitance is introduced under the condition that the height of the array section is not changed, and the problem that the array is difficult to match at low frequency is effectively relieved.

The application discloses a kind of based on ensemble rare earth ions double quantum bit controlled gate construction method, it is related to quantum control technical field, it includes to double quantum bit frequency site selection, and respectively as control bit, target bit;Utilize the blocking effect generated by the dipole-dipole interaction between double quantum bits to construct controlled gate, including: to control bit apply light pulse driving control bit is from ground state transition to excited state;To target bit apply single quantum gate to drive its evolution, and apply compensation pulse;To control bit apply light pulse driving control bit from excited state de-excitation to ground state.The application utilizes the interaction of the light pulse and quantum system medium that can be optimized to produce arbitrary geometric quantum logic gate on target quantum bit, and simultaneously by using the blocking effect caused by dipole-dipole interaction, the evolution of target bit quantum bit can be constrained by control bit.

A dipole including a flexible end configured for being plugged into a socket in an antenna structure. The flexible end includes two plastic parts hingedly connected to each other. The dipole provides a pluggable and adjustable connection with the antenna structure.

This utility model belongs to the field of radar antenna technology and relates to a quick-release triangular dipole antenna. The antenna includes a connecting wire, at least one triangular dipole, and several linear dipoles. The connecting wire includes a base and several parallel metal tubes. Each metal tube is connected to one end of the base. One end of each linear dipole is fixedly connected to a metal tube. The triangular dipole includes a first linear dipole, a second linear dipole, a bent dipole, a mounting base, a pressure block, and a wing screw. On the one hand, dividing the triangular dipole into three sections greatly reduces the packaging size, and the tubular structure of both the linear and bent dipoles reduces the overall antenna weight, making it very suitable for portable use. On the other hand, the mounting structure proposed in this utility model is stable and reliable, and easy to assemble and disassemble.

The invention relates to a flow polarization process for improving the polarization efficiency of a ceramic / polymer-based piezoelectric composite material, and belongs to the technical field of flexible piezoelectric composite materials. Piezoelectric nanorods selected by the composite material are consistent in electric dipole orientation under a mesoscale (can be prepared by a molten salt method, a hydrothermal method or an electrostatic spinning method), a thermosetting polymer is used as a matrix (such as polydimethylsiloxane, thermosetting epoxy resin and the like), and polarity orientation of piezoelectric filler in the polymer matrix is regulated and controlled by means of electrophoresis, so that the piezoelectric composite material is obtained. The orientation of the electric dipoles of the material is consistent under the macroscopic scale, the material is firstly polarized and then molded, and the polarization efficiency of the material is remarkably improved.

The invention discloses a high-gain spatial directivity construction method of a single-vector hydrophone, and relates to the technical field of underwater acoustic signal processing. Acquiring a sound pressure signal and a three-dimensional vibration velocity signal of the target area by using a three-dimensional vector hydrophone; equally dividing the orientation guide angle of the three-dimensional vector hydrophone to obtain a plurality of guide directions; for each guide direction, extracting a horizontal vibration velocity component in the three-dimensional vibration velocity signal, and obtaining two paths of dipole combined vibration velocity signals in each guide direction according to the horizontal vibration velocity component; performing synthetic convolution operation according to the sound pressure signal and the two paths of dipole combined vibration velocity signals in each guide direction to obtain a plurality of synthetic convolution combined signals in each guide direction; and according to the response of all the synthetic convolution combination signals in each guiding direction, obtaining the corresponding synthetic convolution combination directivity. According to the invention, high-gain high-order combination directivity is constructed, and the stability of the detection precision of an underwater weak target is improved.

The application discloses an aircraft structured grid generation method and device based on dipole regulation, equipment and a storage medium, relates to the technical field of aircraft, and comprises the following steps: mapping a non-structured grid of an aircraft to a plane space corresponding to a parameter domain to obtain a parameter domain plane grid, and determining a compression ratio value between the non-structured grid and the parameter domain plane grid; determining a target feature point set based on the angle values of each dihedral angle in the parameter domain plane grid; generating an initial scalar field based on the compression ratio value, and superimposing a dipole field corresponding to a target dipole on the initial scalar field to form a target scalar field; adjusting a feature parameter corresponding to a target contour line in the target scalar field until the distance between the target contour line and each feature point in the target feature point set meets a preset condition, and then determining the adjusted target contour line as a target feature line to generate a target grid line of the aircraft. In this way, the aircraft structured grid with good orthogonality can be obtained.

The application belongs to the technical field of antenna in the communication system comprehensive design, and particularly relates to a kind of omnidirectional broadband antenna based on multimode resonance, L-shaped folded dipole, rectangular loop, U-shaped branch and SMA joint are located at the lower surface of dielectric substrate, feed line is located at the upper surface of dielectric substrate, first metallized via hole and second metallized via hole in the up-down direction are opened on dielectric substrate, the outer conductor of SMA joint is connected with the right arm of L-shaped folded dipole, the inner conductor of SMA joint is connected with one end of feed line by passing through the right arm of L-shaped folded dipole and first metallized via hole, the other end of feed line is connected with the left arm of L-shaped folded dipole by passing through second metallized via hole, the application generates new resonance frequency by bending traditional dipole to form L-shaped folded dipole;rectangular loop is added around L-shaped folded dipole, two new resonance modes are introduced, and the bandwidth of antenna is further widened.

The application provides an electromagnetic transmittance enhancer, and belongs to the technical field of microwave frequency electromagnetic wave regulation and control, comprising a plurality of super units arranged in a rectangular shape. Each super unit comprises a dielectric base, a dielectric substrate and a metal patch, the dielectric substrate is vertically arranged at the middle position on the top of the dielectric base; the metal patch is in an inverted L shape and is arranged on one side of the dielectric substrate; when the electromagnetic wave in the air is incident on the upper surface of the electromagnetic transmittance enhancer, the plurality of super units will simultaneously resonate, the electric field component of the transmitted electromagnetic wave will excite electric dipoles of different lengths in the horizontal and vertical directions of the metal patch, and the electric dipoles will interfere with the incident electromagnetic wave to cancel each other out, so that the resonance zero point of the synthesized dipoles points to the direction of the reflected wave, and the electromagnetic wave is transmitted forward from the gap channel between adjacent units. The electromagnetic transmittance enhancer provided by the application can improve the transmittance of electromagnetic wave transmission to the medium under a large incident angle.

A multiband antenna has an array face with closely spaced dipoles of multiple frequency bands in the low band, the mid band, and C-band or CBRS (Citizens Broadband Radio Service). The low band dipole has four dipole arms formed in a plurality of loops from a single piece of metal. In one embodiment, the loops successively decrease in dimension, resulting in a tapered dipole arm shape and has a bend that bends the dipole arms downward to accommodate radome curvature. In a second embodiment, the outermost loop of each dipole arm is larger in volume and has its lateral loop features bent downward.

The application discloses an antenna device, comprising: a connecting part for connecting with a transmission line of an external device; a grounding part for connecting with the ground of the external device; a first power dividing line connected with the connecting part; a second power dividing line connected with the grounding part; and multiple groups of dipoles; the first power dividing line comprises multiple parallel first connecting branches, and the second power dividing line comprises multiple parallel second connecting branches; each group of the dipoles comprises a first radiation surface and a second radiation surface, the first radiation surface of each group of the dipoles is connected with one of the first connecting branches, and the second radiation surface of each group of the dipoles is connected with one of the second connecting branches, so that the multiple groups of dipoles realize parallel feeding. The antenna device of the application is used for improving the horizontal direction radiation performance of the antenna device without enhancing the transmission power of the antenna device, and enhancing the transmission distance of the antenna device.

The invention discloses an electric field evaluation method and system based on potential-power transmission line coupling, and relates to the technical field of power system protection, and the method comprises the steps: building a current fluctuation model based on a lightning channel engineering model; hybrid emission of a current element i and a charge element q is adopted based on a current fluctuation model; obtaining a voltage U'under the condition of lossy earth through the induced voltage on each section of line; obtaining a total horizontal voltage based on the voltage under the condition of lossy earth and the voltage under the condition of lossless earth; the electric field is evaluated based on the total horizontal voltage. On the basis of a dipole current model, charge distribution introduction, current generation of magnetic potential and charge generation of potential are combined, the relative positions of charges and current elements can be improved when an electric field channel is discretely simulated by a computer, a near-field electric field can be simulated more accurately, and the simulation precision is improved. Meanwhile, the divergence problem caused by calculation truncation errors can be counteracted when the structure is coupled with a coil type structure, and the accuracy and stability of calculation are improved.

The application provides a radio frequency antenna and a communication device. The radio frequency antenna comprises a substrate, a feed port and a radiator. The feed port is arranged on the substrate and is used for being connected with a signal source. The radiator is arranged on the substrate. The radiator comprises a first dipole and a second dipole. The feed port is connected between one end of the first dipole and one end of the second dipole. The first dipole and the second dipole are both bent and extended. The other end of the first dipole and the other end of the second dipole are away from each other along a first direction. A resonance part is coupled and connected with the first dipole and the second dipole. The radio frequency antenna provided by the application has the advantages of being capable of realizing double-frequency radiation and having a small size.

The invention relates to a well-ground two-way communication method and device based on mixed dipole cooperation, and the device comprises an uplink communication device which is configured to carry out the coding and modulation of collected underground data through an underground transmitting device, transmits a modulated first time-varying electromagnetic field signal to a ground medium, and at the same time, transmits a second time-varying electromagnetic field signal to a ground medium; receiving the first time-varying electromagnetic field signal by using a first magnetometer, and decoding the received first time-varying electromagnetic field signal to realize underground data uploading communication; and the downlink communication device is configured to code and modulate a control instruction to be downloaded by using the ground transmitting device, transmit a modulated second time-varying electromagnetic field signal to the earth medium, receive the second time-varying electromagnetic field signal by using a second magnetometer, decode the received second time-varying electromagnetic field signal, and transmit the decoded second time-varying electromagnetic field signal to the ground medium. And control instruction downloading communication is realized. The method can be widely applied to the technical fields of oil and gas well engineering, measurement and control while drilling and underground communication.

The invention belongs to the technical field of transparent conductive film interface engineering, and provides a preparation method of an organic-inorganic interface buffer composite coating with thermal stress slow release, raw materials comprise polymethyl methacrylate powder, inorganic oxide nanoparticles and a silane coupling agent, the polymethyl methacrylate has the advantages of high transparency, light weight and toughness, and the inorganic oxide nanoparticles have the characteristics of good thermal stability, high strength and hardness and strong modifiability. The silane coupling agent has hydrolyzable silane groups which are subjected to condensation reaction with the inorganic oxide nanoparticles and also contains polar groups which can be subjected to intermolecular dipole-dipole strong combination with the polymethyl methacrylate, so that the effective combination of the polymethyl methacrylate powder and the inorganic oxide nanoparticles is realized through the silane coupling agent; therefore, the organic-inorganic composite coating which is high in visible light transmittance, good in thermal stability and strong in interface action is prepared.

The application discloses a circularly polarized logarithmic-periodic antenna based on rotation of radiating oscillators, and belongs to the technical field of antenna engineering, and aims at solving the problem of how to design a circularly polarized logarithmic-periodic antenna with wide bandwidth, low profile and simple structure. The application forms corresponding circularly polarized characteristics by rotating a plurality of groups of radiating oscillators by a certain angle with parallel assembly lines as the shaft. The antenna only has a plurality of radiating oscillators which change according to the logarithmic-periodic antenna rule, and does not have a main oscillator and a sub-oscillator, so that the structure is simpler and easier to realize. Meanwhile, the circularly polarized effect is formed by rotating the radiating oscillators to a certain phase and the phase difference between the electromagnetic waves of each oscillator and the zero point of the antenna, so that the logarithmic-periodic antenna can obtain good impedance bandwidth and 3dB axial ratio bandwidth in the working frequency band.

The invention relates to a radiator assembly for a base station antenna having a longitudinal central axis and two dipoles arranged crosswise around the longitudinal central axis, each dipole having two dipole arms, each dipole arm being provided with a hook-shaped feed made of a metal sheet having a free end, the hook-shaped feed being capacitively coupled with the associated dipole arm. This radiator assembly is compact, easy to manufacture and to assemble.

This invention relates to the field of antenna technology, and particularly to a miniaturized circularly polarized antenna with a wide axial ratio and wide beamwidth. The antenna includes a dielectric substrate, a circular radiating patch unit, metal shorting posts, a coaxial differential feed structure, and a metal ground plane. The circular radiating patch unit consists of a pair of orthogonal fan-shaped cross-printed dipoles. A slot structure is added in the middle along the X-axis to divide the radiator into left and right parts, and three metal shorting posts are added to the end of each fan-shaped cross-printed dipole structure. The feed structure is a differential-feed coaxial cable, with its inner and outer conductors contacting the left and right halves of the circular radiating patch unit, respectively. Simultaneously, due to the slight difference in curvature between the two orthogonal fan-shaped printed dipoles, a phase difference is formed between the pair of orthogonal modes of the circular radiating patch unit, ultimately achieving circularly polarized radiation of the antenna. A metal short-circuit post is applied to the electric field zero of a conventional printed dipole, forming a new half-mode operating mode at low frequencies. Simultaneously, the slot structure improves the impedance characteristics of the half-mode, enabling antenna miniaturization. Due to the radiation contribution of the metal short-circuit post in the horizontal direction, the axial ratio beamwidth of this circularly polarized antenna is significantly extended. This application exhibits excellent forward radiation characteristics, along with miniaturization, a wide axial ratio beamwidth, simple structure, low cost, and ease of fabrication.

Assembly for determining a characteristic of a structure on a substrate, comprising a radiation illumination dipole having first and second sources that are angularly offset to a transverse direction in an illumination pupil plane. The first and second sources irradiate a structure having a periodically repeating pattern along a transverse. A multi-part wedge is located in an exit pupil of the assembly, configured to receive from the structure: a lower radiation order and a higher radiation order of diffracted radiation of the first source on a first part of the multi-part wedge, and a lower radiation order and a higher radiation order of diffracted radiation of the second source on a second part of the multi-part wedge. A detector receives a first and second spatially separated images formed from first and second source radiation incident on the first and second parts of the wedge, respectively.

This invention discloses a miniaturized, ultra-wideband, dual-polarized antenna based on non-uniform planar loading, comprising a first layer, a second layer, and a third layer arranged sequentially from top to bottom. The first layer is a non-uniform planar structure composed of four types of elements, used to improve high-frequency beam splitting. The second layer is a radiator structure consisting of two pairs of orthogonally placed magnetoelectric dipoles. The third layer is a reflector cavity composed of a planar metal reflector and a vertically loaded metal plate. This invention discloses a miniaturized, ultra-wideband, dual-polarized antenna based on non-uniform planar loading. By using the non-uniform planar structure loaded at the top of the antenna radiator, the high-frequency anti-phase currents of the electric dipole arms are modulated into in-phase currents, suppressing higher-order modes and refocusing the split beam, thereby obtaining a stable, high-gain radiation pattern throughout the entire ultra-wideband frequency range.

A dipole aligning apparatus, a dipole aligning method, and a display device manufacturing method are provided. The dipole aligning apparatus includes an electric field forming unit including a stage and a probe unit for forming an electric field on the stage, an inkjet printing device including at least one inkjet head for injecting ink onto the stage, the ink including dipoles and a solvent in which the dipoles are dispersed, a transport unit including a first moving member for moving the electric field forming unit in at least one direction, and a light irradiation device including a light irradiation unit for irradiating light on the ink injected on the stage.

The utility model discloses an AOA array antenna in the field of wireless communication, which comprises a first antenna, a second antenna, a third antenna and a bottom support arranged on the lower portions of the first antenna, the second antenna and the third antenna, the first antenna, the second antenna and the third antenna are identical in structure and are respectively composed of a metal oscillator A, a metal oscillator B, a metal short-circuit piece and a plastic fixing piece, and the metal oscillator A, the metal oscillator B, the metal short-circuit piece and the plastic fixing piece are arranged on the bottom support. And the metal oscillator A and the metal oscillator B are respectively arranged above and below the plastic fixing piece. Each antenna unit is formed by four groups of 45-degree polarized dipoles which are symmetrically distributed in a central rotation manner along the center of the support, the four groups of dipoles are connected through a one-to-four equal power division network, and electromagnetic waves radiated by the dipoles are orthogonal in pairs and have a phase difference of 90 degrees, so that the whole antenna unit forms a circularly polarized antenna with an omnidirectional radiation pattern; the array units form an equilateral triangle array at the interval smaller than one half of the wavelength, the interval is smaller, and the omni-directionality is higher.

The invention discloses an HKMG gate work function adjusting process method. The HKMG gate work function adjusting process method comprises the steps of 1, forming an interface layer and a high dielectric constant layer on a semiconductor substrate; and 2, forming a lanthanum oxide layer on the top surface of the high dielectric constant layer. And step 3, performing graphical etching on the lanthanum oxide layer to remove the lanthanum oxide layer outside the first region and retain the lanthanum oxide layer of the first region, wherein the outside of the first region is a region which does not need to reduce the work function of the grid electrode. 4, annealing is carried out to push lanthanum into the high dielectric constant layer, after lanthanum is pushed into the high dielectric constant layer, an electric dipole is formed at the interface of the high dielectric constant layer and the interface layer, and the grid work function of the first area is reduced through the electric dipole. And step 5, removing the residual lanthanum oxide layer. According to the invention, a threshold voltage adjusting process window can be expanded, so that the threshold voltage is matched with a target value to the greatest extent and the device performance is improved.

The invention concerns an optoelectronic device based on a p-type down configuration that achieves enhanced hole injection into the active region through a combination of lateral hole injection and alignment of polarization dipoles in the active region with the depletion field, allowing reduction of efficiency droop and achievement of lower forward bias. The alignment of the polarization field with the depletion field in the active region reduces the electrostatic barrier for electron and hole injection, compared to conventional p-up LEDs.

Methods of manufacturing and processing semiconductor devices (i.e., electronic devices) are described. Embodiments of the disclosure advantageously provide electronic devices which meet reduced thickness, lower thermal budget, and Vt requirements, and have improved device performance and reliability. The electronic devices described herein comprise a source region, a drain region, and a channel separating the source region and the drain region, an interfacial layer on a top surface of the channel, a high-κ dielectric layer on the interfacial layer, a dipole layer on the high-κ dielectric layer, and a capping layer on the dipole layer. In some embodiments, the dipole layer comprises a metal oxynitride (MON), such as aluminum oxynitride (AlON). In some embodiments, the methods comprise annealing the substrate to drive atoms from the dipole layer into one or more of the interfacial layer or the high-k dielectric layer.

The application discloses a terahertz electrically controlled polarization diversity dual-band reconfigurable intelligent surface, which comprises a metal bottom plate, a dielectric substrate and a phase shift structure layer arranged layer by layer from bottom to top; the phase shift structure layer comprises phase shift units arranged in an M*N orthogonal array mode, each column of the phase shift units has an anode lead-out wire and a cathode lead-out wire; each phase shift unit comprises three dipoles, and the dipole is in an I-shaped structure and is formed by two T-shaped branches arranged oppositely at vertices. The application works through electric control, thereby realizing dynamic broadband regulation and control of the phase. Without other relatively complex excitation modes such as optical excitation and temperature excitation, the device has great advantages in miniaturization, practicality and production.

Organic emissive devices are provided that include host structures with electron and / or hole transporting components having specific energy levels that promote good charge balance and enhanced charge capture. The disclosed energy level structures provide host systems that reduce exciplex formation and thereby promote improved device internal quantum efficiency and stability, or which intentionally include exciplex formation so as to modify the average orientation of the dipole.