187 results about "Dipole antenna" patented technology

The invention discloses a broadband and high-efficiency true time delay reflective array antenna, and belongs to the technical field of antenna engineering. Through the design of the broadband horn feed antenna, the broadband butterfly-shaped dipole antenna and the real-time-delay coaxial transmission line, high-efficiency directional radiation is realized. The gain bandwidth of the multi-layer patch type reflective array antenna is much larger than that of a traditional multi-layer patch type reflective array antenna; compared with a traditional transmission line phase modulation type reflective array antenna, due to stable time delay and shielding and no resonant structure, the antenna has better gain stability, and an in-band gain curve is increased approximately linearly. Finally, the antenna is simple in structure and can be realized only by a single-layer patch structure and a common coaxial transmission cable, and high-cost laminated patch processing is not needed.

A magneto-electric dipole antenna includes a substrate module, a director, a reflector and a feeding module. The substrate module has an upper surface and a lower surface. The director is disposed on the upper surface of the substrate module. The reflector is disposed on the lower surface of the substrate module. The feeding module is disposed in the substrate module between the director and the reflector. When a to-be-outputted signal is fed to the feeding module, a forward radiation that transmits in a forward direction pointing from bottom to top is generated, a backward radiation that transmits in a backward direction reverse to the forward direction is generated and is reflected by the reflector, and the forward radiation and the backward radiation thus reflected are directed by the director so as to generate the electromagnetic wave.

Disclosed is a novel dipole antenna design having symmetric poles, each pole having a half circle resonator and an oval resonator that are electrically connected by a straight choke section; the dipole shape permits a wideband dipole response with a transition frequency between a lower and upper frequency band. A cross bar and capacitively-coupled stubs tune at the transition frequency to create a continuous impedance and gain-bandwidth. The dipole and the crossbar and stubs are formed on opposite surface or sides of a substate. Data demonstrates the novel dipole antenna can exceed the gain-bandwidth of the state-of-the-art bowtie by approximately 5 times, that is, its gain-bandwidth is 10:1 versus the standard bowtie gain-bandwidth of 2:1 at broadside.

The invention discloses a dual-port coaxial feed circular polarization magnetoelectric dipole antenna, and belongs to the technical field of millimeter wave satellite communication antennas. The antenna comprises a first metal patch layer, a dielectric substrate a, a second metal patch layer, a dielectric substrate b and a metal ground which are sequentially stacked from top to bottom, the second metal patch layer comprises four radiation patches which are arranged in a rectangular array, and each radiation patch is composed of a square patch and a circular ring patch at an inner corner; a metal through hole is formed in the dielectric substrate and is connected with the radiation patch and the metal ground, so that a magnetoelectric dipole radiation path is formed; the first metal patch layer is provided with a probe patch a, the center of the second metal patch layer is provided with a probe patch b, and the probe patch a and the probe patch b form two space orthogonal inverted L-shaped feed probes through a short column and a long column respectively; and the inner conductors of the two feed ports are respectively connected with the long columns of the two probes. The antenna has the advantages of wide impedance bandwidth, wide beam coverage, low profile and easy integration, and is suitable for a low-orbit satellite communication terminal.

A magneto-electric dipole antenna array includes a substrate and at least one antenna unit. Each of the at least one antenna unit includes an electric-dipole component, a magnetic-dipole component, a first feeding probe, a second feeding probe and a stripline. The electric-dipole component is disposed on an upper surface of the substrate. The magnetic-dipole component is disposed in the substrate and between the upper surface and a lower surface of the substrate, and is electrically connected to the electric-dipole component. The first feeding probe is disposed on the upper surface of the substrate for vertical polarization. The second feeding probe is disposed in the substrate and between the upper surface and the lower surface of the substrate for horizontal polarization. The stripline is disposed in the substrate and between the first feeding probe and the second feeding probe for capacitive coupling.

The present invention provides an IC tag that can reduce the risk of deterioration in communication functionality even when subjected to external forces such as bending. [Solution] The IC tag comprises a substrate having a first surface and a second surface; an IC chip disposed on the first surface of the substrate; a dipole antenna disposed on the first surface of the substrate for electrically transmitting and receiving information stored in the IC chip; a cover bonded to the first surface of the substrate so as to cover the IC chip and the antenna; a first resin layer laminated on at least a portion of the surface of the cover opposite to the surface bonded to the first surface of the substrate; and a second resin layer laminated on at least a portion of the second surface of the substrate. The first resin layer and the second resin layer have a tensile modulus of 2.0 GPa or less.

The application belongs to the technical field of antennas, and discloses an S / Ka-band common-aperture antenna and communication equipment, which comprises a first dielectric plate and a second dielectric plate stacked from top to bottom; the top surface, the middle and the bottom surface of the first dielectric plate are respectively provided with a rectangular patch array, a first metal through hole and a first metal layer; wherein the rectangular patch array, the first metal through hole and the first metal layer form a magneto-electric dipole antenna array; the magneto-electric dipole antenna array works in the Ka-band and is used for realizing satellite communication; the top surface, the middle and the bottom surface of the second dielectric plate are respectively provided with a second metal layer, a second metal through hole and a third metal layer; wherein the second metal layer, the second metal through hole and the third metal layer form a low-profile monopole antenna; the low-profile monopole antenna works in the S-band and is used for realizing ground equipment communication; the application has a simple structure, can realize different beams and polarization characteristics, effectively improves the space utilization rate of the antenna and has high integration.

An antenna element for a transmitarray antenna, which includes a receiving antenna portion and a transmitting antenna portion which are spatially separated from each other. The transmitting antenna portion includes a first reconfigurable magneto-electrical (ME) dipole antenna adapted to provide a 0° or 180° phase shift, and the receiving antenna portion includes a second reconfigurable ME dipole antenna adapted to provide a 0° or a 90° phase shift, such that the antenna element is operable to provide a 90° transmission phase progression with 2-bit resolution. The proposed wideband 2-bit RTA element can achieve a reconfigurable 2-bit transmission phase with high transmission magnitude.

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.

This invention provides a millimeter-wave isolation circuit and isolator with multiple receiving links. Its millimeter-wave receiving module includes two or more dipole antennas and receiving units connected one-to-one with each dipole antenna. Each dipole antenna and its corresponding receiving unit constitutes a receiving link. The two or more dipole antennas are arranged along their length, with the radiating elements of consecutive dipole antennas connected end-to-end, forming a millimeter-wave receiving antenna array. It is configured to receive the millimeter-wave signal through two or more receiving links and then output two or more identical pulse signals. This invention enables synchronous reception of multiple pulse signals based on a single structure, ensuring minimal time deviation at the receiving end and reducing system power consumption and cost.

According to the magnetoelectric dipole antenna, the coaxial feed communication bandwidth is larger than 100%, and the technical problems that broadband impedance matching and high-frequency mismatching are achieved, and the stability of a feed structure is poor are solved. According to the antenna, a meandering seam bending type electric dipole and a stepped flaring type magnetic dipole are cooperatively matched, and a feed structure and a U-shaped reflector are combined to integrally form the magnetoelectric dipole antenna. A meandering seam is etched on a horizontal rectangular patch, a vertical patch is welded on the outer side of the horizontal rectangular patch to form a three-dimensional radiator, and the three-dimensional radiator and a stepped flaring type cavity structure magnetic dipole form a closed structure. The feed structure comprises a coaxial line and two bent copper sheets, thereby realizing direct current grounding and providing mechanical reinforcement. 3.7 GHz and 4.2 GHz resonance points are introduced to realize 104.8% of relative bandwidth, while the compact structure is maintained, the broadband coverage and stable radiation characteristics are realized, the long-term reliability in an outdoor complex environment is ensured by a stable feed structure, part of 5G communication signals in a Sub-6G frequency band can be effectively covered, and the antenna is suitable for various wireless communication systems.

The embodiment of the present application provides a kind of single-layer planar dipole antenna, wherein the antenna is applied to intelligent vehicle technical field, wherein the single-layer planar dipole antenna includes: base material, planar dipole antenna, planar balun, differential double-wire transmission line and band ground coplanar waveguide;Wherein, planar dipole antenna, planar balun, differential double-wire transmission line and band ground coplanar waveguide are arranged on the same layer of base material surface;Band ground coplanar waveguide includes center signal conductor and left and right two side reference ground, two metal arms of planar balun are connected to left and right two side reference ground of band ground coplanar waveguide respectively, and the upper end of differential double-wire transmission line is respectively connected to two radiation arms of planar dipole antenna, while the lower end of differential double-wire transmission line two transmission lines are respectively connected to one of center signal conductor and left and right two side reference ground of band ground coplanar waveguide.The embodiment of the present application can realize the integrated molding of antenna by the structure of single surface arrangement antenna, and reduce the integration difficulty of antenna.

The invention discloses a system-integrated dipole antenna and a manufacturing method thereof, and relates to the technical field of antenna design, and the system-integrated dipole antenna comprises a dipole radiation module which is used for achieving the energy conversion between a radio frequency signal and a space electromagnetic wave; an integrated balun module and a transceiver circuit module are arranged on the circuit board; the integrated balun module is connected with the two metal radiation arms of the dipole radiation module through feeding points. The transmit-receive circuit module is electrically connected with the integrated Balun module, and performs signal transmission with the dipole radiation module through the integrated Balun module. Compared with a traditional separated antenna and a system architecture of a radio frequency front end, the system integrated dipole antenna realizes balance feed and differential interface integration, energy loss and the size of the system integrated dipole antenna are remarkably reduced, and the integration level and reliability of the system integrated dipole antenna are remarkably improved.

This application provides an RFID tag, comprising an RFID chip and an antenna body. The antenna body includes an impedance matching network and a radiator, and the RFID chip is connected to the impedance matching network. The impedance matching network is formed by parallel impedance matching units and is connected to the radiator. The radiator has a hollow design. Based on the parallel impedance matching network and the gap between the impedance matching network and the radiator, the polarization direction of the RFID tag is vertical. This application's RFID tag, by changing the antenna structure, achieves a vertical antenna polarization direction, realizing a 90° polarization direction reversal compared to the conventional dipole antenna, thus improving the RFID tag's performance.

The application discloses a P-waveband broadband characteristic planar dipole antenna and belongs to the technical field of decimeter wave radio frequency front-end devices. A pair of printed planar dipoles composed of a half-elliptical part and a rectangular part and respectively located on the upper and lower surfaces of a dielectric substrate form the main radiation structure of the antenna. A metal base is composed of a metal side wall and a metal ground back plate, the metal side wall plays a role of supporting the dielectric substrate and also plays a role of a parasitic element, the current of the dipole is coupled to the parasitic element metal side wall, the current is avoided from being concentrated in the center of the dipole patch, and therefore the impedance bandwidth of the antenna is improved. The antenna has good radiation performance at 0.4 GHz, 0.5 GHz, 0.6 GHz, 0.7 GHz and 0.8 GHz, and the antenna can be widely applied to P-waveband wireless communication systems with requirements of broadband, low profile and stable performance.

The application discloses a flat building block type antenna array, which comprises an antenna unit and a metal floor, and the building block type antenna unit is composed of an antenna substrate, a hard foam plate, a multifunctional metal disc and a slanted wedge connector, and is fastened to the metal floor by four medium screws. A group of 4*4 circular metal patches are distributed on the upper surface of the antenna substrate, and a group of 5*5 circular through holes penetrate through the whole substrate, and two pairs of rhombus-like metal patches are distributed on the lower surface of the substrate, thereby forming the radiation arms of a dual-polarized dipole antenna. The multifunctional metal disc comprises one metal disc and five metal cylinders. The slanted wedge connector is composed of a metal inner core, a Teflon cylinder and a metal shell. Since the building block type antenna unit adopts a flat and modular design, the low profile and lightweight design of the UHF frequency band phased array antenna are realized, and the flexible and expandable array scale can be realized by changing the size of the metal floor.

The invention provides a half-space beam coverage miniaturized folding magnetoelectric dipole antenna, belongs to the technical field of millimeter wave phased-array antennae, and adopts a folding magnetoelectric dipole antenna which has a wider bandwidth; broadening of a wave beam coverage range is realized based on a back-to-back H-plane array of the folded magnetoelectric dipole antenna, the wave beam coverage range can be widened on the basis of not increasing the antenna size, and the cross section size is relatively small; the E-plane beam coverage area is expanded based on the close arrangement mode, the method for expanding the E-plane beam coverage area is simple and convenient, and the complexity of the antenna structure is not increased; the antenna is smaller in size, and can achieve half-space beam coverage.

This invention belongs to the field of near-field communication technology, and specifically relates to a near-electric field coupled wireless networking communication system and method for completely buried spaces. It includes: a plurality of slave communication nodes for collecting environmental data of the surrounding space; these slave communication nodes are spaced apart on a metal cable in the goaf and communicate with other nodes via near-field coupling through the metal cable, forming a wireless network with each slave communication node and its corresponding metal cable; and a main communication node for aggregating environmental data from each slave communication node and connecting to a host computer to achieve goaf environmental monitoring. The main communication node is located at the coal face, with one end of the metal cable connected to the main communication node and the other end extending longitudinally through the goaf and into the completely buried space. This invention uses symmetrical electric dipole antennas of the communication nodes to couple electric field signals to the metal cable or to sense electric field signals fed back from other nodes on the metal cable for wireless networking communication. Under completely buried conditions, it can ensure the communication quality of communication nodes near the metal cable.

A dipole antenna includes a reflector, a radiating element, and a feed element. The radiating element includes first and second dipoles above a surface of the reflector. The first and second dipoles respectively include arm segments and are arranged in a crossed dipole arrangement. The feed element includes first and second conductive transmission lines that are electrically isolated from one another and are capacitively coupled to the arm segments of the first and second dipoles, respectively. The arm segments of the first and second dipoles are between the feed element and the surface of the reflector.

The invention provides a dual-frequency high-gain antenna and a network communication electronic device. The dual-frequency high-gain antenna comprises a substrate, a first radiation assembly, a second radiation assembly, a power division line assembly and a ground feed assembly. The first radiation assembly and the second radiation assembly are respectively arranged on two surfaces of the substrate, the power division line assembly is electrically connected with the first radiation assembly, and the feed ground assembly is electrically connected with the first radiation assembly and the second radiation assembly; the first radiation assembly comprises a plurality of groups of first dipole antennas, every two groups of first dipole antennas are connected in series to form a first dipole antenna pair, and the plurality of first dipole antenna pairs are connected in parallel by the power division line assembly. According to the dual-frequency high-gain antenna, the overall circuit structure of the antenna can be simplified, the overall radiation performance of the antenna can be effectively improved, the problems of interference and attenuation are effectively solved, and therefore the radiation gain and the radiation efficiency of the antenna are improved.

The application discloses a kind of full duplex antennas based on slot coupling differential feed, including two pairs of butterfly dipole antennas, first dielectric plate, four groups of vertically placed signal transmission lines, metal floor, second dielectric plate, two U-shaped feed networks and third dielectric plate;The application is placed on the upper surface and lower surface of first dielectric plate by setting two pairs of butterfly dipole antennas, to radiate horizontal polarization and vertical polarization wave, in order to generate differential signal, four T-shaped slots with the same size are etched on the metal floor, then the differential signal at T-shaped slot is transmitted to the feed position of dipole antenna by four groups of vertically placed transmission lines, and the two U-shaped feed networks are placed vertically without dielectric layer, so as to obtain larger port isolation, which can be applied to simultaneous same frequency full duplex communication system, and wireless signals can be transmitted and received simultaneously at the same frequency, thereby improving spectrum utilization efficiency.

The invention discloses an integrated ship communication mast antenna, belongs to the technical field of communication antennas, and is used for solving the problems of limited space and poorer compatibility, structural stability and stealth performance when a multi-band antenna is integrated on a small ship platform mast. The communication mast antenna comprises a first antenna unit, a second antenna unit, a third antenna unit and a frequency-selective antenna housing, wherein the first antenna unit, the second antenna unit and the third antenna unit are sequentially arranged in the longitudinal direction and are mounted in the frequency-selective antenna housing; the first antenna unit, the second antenna unit and the third antenna unit are all dipole antennas, the central axes of the first antenna unit, the second antenna unit and the third antenna unit coincide, the working frequency bands of the first antenna unit and the third antenna unit are the same, and the second antenna unit at least comprises two working frequency bands. The communication mast antenna is small in occupied space, high in compatibility and invisibility and stable in overall structure.

The application relates to an antenna module, a laminated assembly and a vehicle. In the antenna module, the currents on the two feeding branches of a dipole antenna are in and out, so that the currents on the two feeding branches of the same dipole antenna are in phase, the currents on the two radiation branches are in the same direction and in phase, the currents on the radiation branches of multiple dipole antennas are in phase and are transmitted in the same direction, a ring-distributed radiation branch is constructed, a current ring is formed on the multiple radiation branches when a feeding port accesses an excitation signal, and a ring current resonance mode at a target frequency band is supported. Planar antenna arrangement can be performed on any non-conductor plane substrate, when applied to a vehicle, metal arrangement such as a vehicle bumper can be avoided, a single antenna module can support omnidirectional radiation at a target frequency band, the number of antenna modules is reduced, and the antenna cost is reduced.

An array antenna device according to the present disclosure comprises: a dielectric substrate (1); a plurality of dipole antenna elements (2), (3) which are arranged two-dimensionally in a planar shape on the front surface of the dielectric substrate (1), and have power supply arms (22), (32) and ground arms (21), (31); a ground conductor (4) which is formed on the rear surface of the dielectric substrate (1) and to which the ground arms (21), (31) of the plurality of dipole antenna elements (2), (3) are electrically connected via short-circuit lines (7), (9) corresponding to the ground arms (21), (31); and, a plurality of input units (5) which are provided on the rear surface of the dielectric substrate (1) and which correspond to the respective power supply arms (22), (32) of the plurality of dipole antenna elements (2), (3) and are electrically connected via power supply lines (8), (10) respectively corresponding to the power supply arms (22), (32). The dielectric substrate (1) has cavities (13) directly below respective tip parts (22b), (32b) of the power supply arms (22), (32) of the plurality of dipole antenna elements (2), (3) and directly below respective tip parts (21b), (31b) of the ground arms (21), (31) of the plurality of dipole antenna elements (2), (3).

This invention discloses a Ka-band wide-beam magnetoelectric dipole antenna, belonging to the field of microwave and millimeter-wave communication antenna technology. It includes a dielectric substrate with a metal ground plane on its lower surface and four radiating patches and a feed patch on its upper surface. The radiating patches are rectangular in shape, with rounded corners at one pair of corners. A slot extends from the center of one rounded corner to the end of the arc of the other rounded corner, forming a cross-shaped gap between the four radiating patches. The feed patch is located in the middle of the cross-shaped gap, with a metal through-hole A at one end. The top of metal through-hole A connects to the feed patch, and the bottom connects to the metal ground plane, forming an L-shaped feed probe. Each radiating patch has a metal through-hole B at a right angle, with the top of metal through-hole B connecting to the radiating patch and the bottom connecting to the metal ground plane. This invention features wide bandwidth, wide beam, low profile, and ease of fabrication.

The utility model relates to a printed dipole antenna, which comprises a metal bottom plate, a first dielectric plate, a second dielectric plate, an antenna housing and an antenna connector, the antenna housing is arranged on the front surface of the metal bottom plate, the first dielectric plate and the second dielectric plate are positioned in the antenna housing, and the first dielectric plate and the second dielectric plate are parallel and are vertically arranged on the front surface of the metal bottom plate; the distance between the first dielectric plate and the second dielectric plate is 24.5 mm, the first dielectric plate and the second dielectric plate are both PCBs, a C-band antenna is arranged on the first dielectric plate, an X-band antenna is arranged on the second dielectric plate, two antenna connectors are arranged on the bottom face of the metal bottom plate, and the two antenna connectors are connected with the C-band antenna and the X-band antenna respectively. The beneficial effects of the utility model lie in that high gain, wide wave beam coverage and high power capacity performance in the C wave band and the X wave band are realized, and miniaturization, light weight and environmental adaptability are considered at the same time.

Provided herein are various enhancements for planar antennas and corresponding antenna arrays. In one example, an assembly includes a plurality of antenna cells formed in a shared printed circuit board stackup, a rigid superstrate layer mounted onto the printed circuit board stackup, and a substrate layer mounting the printed circuit board stackup to a baseplate. Each of the antenna cells comprise conductive plates at quadrants of the antenna cell and coupled through vias in the layered stackup arrangement from a plate layer to a ground plane layer, flared antenna feeds arranged in an orthogonal pair positioned within central gaps between the conductive plates and below the plate layer, and barrier vias positioned in sets below the conductive plates in each of the quadrants and arrayed about the flared antenna feeds.

A MIMO antenna device includes a front-side dipole antenna and a back-side dipole antenna. Long-side feed parts for hot element are connected respectively to feed points at their long sides. Long-side feed parts for ground element are connected respectively to the feed points at their long sides, and the long sides thereof face the long sides of the long-side feed parts for hot element in parallel with a predetermined interval. Ground elements are respectively arranged point-symmetric to hot elements with respect to the feed points in an offset manner. The front-side dipole antenna and the back-side dipole antenna are arranged such that the front-side feed point and the back-side feed point substantially overlap each other in a top view and that the long-side feed part for front-side is arranged perpendicular to the long-side feed part for back-side.

A dual-polarized magnetoelectric dipole antenna, including a reflection plate, electric and magnetic dipoles, where the electric dipole includes four first electrodes; the magnetic dipole includes four second electrodes; the second electrodes are in one-to-one correspondence with the first electrodes, and each second electrode is connected between a corresponding first electrode and the reflection plate; each first electrode includes first and second sides connected to each other; the first side of the first electrode is adjacent to the first side of one adjacent first electrode, and the second side of the first electrode is adjacent to the second side of other one adjacent first electrode; each second electrode includes two sub-electrodes connected to the first and second sides of a corresponding first electrode, respectively; the sub-electrode has a slit opening therein, and an extending direction of the slit opening is parallel to a plane where the reflection plate is located.

The invention provides a broadband dual-polarization modular antenna, and relates to the technical field of antenna engineering. The matching layer and the antenna layer, the antenna layer and the feed layer, and the feed layer and the aperture transformation layer of the broadband dual-polarization modular antenna are connected through first prepregs. The antenna layer comprises a thin dielectric plate on which two dipole antennas are orthogonally placed, left and right arms of the dipole antennas are unequal in length, capacitive coupling exists between the long arms, short arms are connected with a first plated-through hole and a second plated-through hole, and the long arms are connected with a third plated-through hole and a fourth plated-through hole at two sides of a capacitive coupling area; the broadband dual-polarization modular antenna adopts an orthogonal dipole antenna structure based on capacitive coupling between long arms and grounding plated-through hole loading, and the dipole antenna and the aperture conversion with the bonding pad are integrally laminated, so that the antenna has the characteristics of wide frequency band, dual polarization, modularization and high integration level, and is easy to integrate with a rear-end assembly and expand the antenna scale; the method is suitable for microwave and millimeter wave radars and communication systems.