65results about "Radiating elements structural forms" patented technology

A system and method for an antenna which is constructed into or conforming onto the roof or wall of a cargo container is provided. The antenna system may have multiple antennas for short range wireless, cellular, global positioning, or satellite built into a single functional element. The antenna system may utilize a patch or phased array design. The method of construction of the antenna system may as part of the container fabricated or installed at the factory, applied as an adhesive film kit, or applied as a successive spray coating and etching process.

The invention belongs to the field of broadband reconfigurable micro-strip antennas and particularly relates to a mobile phone antenna with a reconfigurable directional diagram. The mobile phone antenna with the reconfigurable directional diagram is used for receiving and transmitting wireless signals in communication devices such as a mobile phone and an ISM communication device. The mobile phone antenna with the reconfigurable directional diagram is composed of two medium substrates, four bending-shaped passive vibrators, four horizontal straight passive vibrators, six switches, two dipole excitation vibrators, two perpendicular parasitic vibrators, a balancer and a coaxial feeder. The first bending-shaped passive vibrator, the first horizontal straight passive vibrator, the second horizontal straight passive vibrator and the second bending-shaped passive vibrator are sequentially connected together to form a first connecting structure through the switches. The third bending-shaped passive vibrator, the third horizontal straight passive vibrator, the fourth horizontal straight passive vibrator and the fourth bending-shaped passive vibrator are sequentially connected together to form a second connecting structure through RF-PIN switches. The antenna is small in SAR value, low in radiation, high in efficiency, simple in structure, convenient to machine and low in cost.

An antenna comprises a first antenna element, which has a first helix, and a second antenna element, which has a second helix. The first and the second antenna elements each have a feed point at an outer end of the corresponding helix and an open end at an inner end of the corresponding helix. A symmetrical helix antenna according to the invention can be integrated in a comparatively simple manner in an existing system, for example in a hearing aid. By integrating the antenna in a plastic housing, the antenna cannot be seen at all from the outside. The antenna is comparatively small in relation to conventional antennas.

In an antenna apparatus, two pattern antennas are arranged side by side in an area close to a ground conductor layer on a surface of a dielectric substrate, in such a manner as to be formed substantially line-symmetrical with each other. Each of the pattern antennas includes a radiation element having a feed coupler, a mutual coupler, and a feed element fed by a high frequency circuit unit. An open end of the radiation element is located near the ground conductor layer. The feed element and the feed coupler are capacitively coupled with each other, whereby the radiation element is excited. At the excitation, the mutual couplers that extend substantially in parallel with and close to each other are capacitively coupled with each other, and hence, polarization planes of the electric fields radiated from the radiation elements can be made orthogonal to each other.

A small rectenna including a thin conductive layer formed on a surface of a dielectric substrate and a slot pattern arranged within the thin conductive layer. The small rectenna for an RFID transponder includes: a dielectric substrate; a thin conductive layer formed on a surface of the dielectric substrate; a slot pattern configured within the thin conductive layer so that the rectenna has an enhanced gain and a greater operating bandwidth; and an inlet of an electronic chip including an ASIC in the slot pattern.

A waveguide slotted array antenna comprises a feed layer and a radiation layer, wherein the feed layer is located below the radiation layer, and the radiation layer comprises a first radiation unit, a second radiation unit, a third radiation unit and a fourth radiation unit which are stacked from bottom to top; the first radiation unit comprises a first flat metal plate and a first radiation array arranged on the first flat metal plate, the second radiation unit comprises a second flat metal plate and a second radiation array arranged on the second flat metal plate, the third radiation unit comprises a third flat metal plate and a third radiation array arranged on the third flat metal plate, and the fourth radiation unit comprises a fourth flat metal plate and a fourth radiation array arranged on the fourth flat metal plate. The waveguide slotted array antenna has the advantages of low sidelobes and low cost while ensuring broad bands and high gains, and can be made small.

A broadband high-gain circularly polarized microstrip antenna comprises a floor, a feed coaxial, a bottom dielectric substrate, a chamfered U-shaped slot microstrip, a top dielectric substrate, a substrate integrated waveguide square cavity, and a 2*2 microstrip radiation unit. The substrate integrated waveguide square cavity is composed of a bottom square microstrip line, a metal cylinder array,a top square microstrip line, and a part of the top dielectric substrate surrounded by the metal cylinder array. The respective parts of the antenna are stacked in order from bottom to top. The antenna can be achieved by a common double-layer microstrip printed board process or by an LTCC process. The method uses a form that a single-point feeding lower microstrip excites the upper 2*2 microstripradiation unit through the substrate integrated waveguide square cavity, increases the gain while realizing a wide frequency band, thereby avoiding the use of a complicated feed network. The circularpolarization of the antenna is achieved by means of chamfering on two rectangular microstrips. The antenna can be used as a single antenna or as a wide-angle scanning array antenna element.

A triple-band antenna for an electronic device with a communication capability comprises a first radiating body, a second radiating body, a metal base and a signal feed source. A dual-band antenna for low frequency and high frequency bands may be formed by the first radiating body. A middle-frequency band antenna and a balun may be formed by the combination of the first radiating body and the second radiating body, and the balun may be used to increase the bandwidth of operating frequencies of the intermediate frequency band antenna.

A spray non-contact cutting type antenna fabrication method is disclosed to have an antenna radiator be formed on a plastic shell by means of spray-painting a metallic spray paint on the surface of the plastic shell and then cutting the metallic coating into shape, and then to cover the plastic shell with a cover layer by means of an insert molding or spray paining technique to have the antenna radiator be enveloped in the cover layer.

A method and apparatus for producing an RF part of an antenna system is disclosed, as well as thereby producible RF parts. The RF part has at least one surface provided with a plurality of protruding elements. In particular, the RF part may be a gap waveguide. The protruding elements are monolithically formed and fixed on a conducting layer, and all protruding elements are connected electrically to each other at their bases via the conductive layer. The RF part is produced by providing a die having a plurality of recessions forming the negative of the protruding elements of the RF part. The die may be a multilayer die, having several layers, at least some having through-holes to form the recessions. A formable piece of material is arranged on the die, and pressure is applied, thereby compressing the formable piece of material to conform with the recessions of the die.

The invention provides a near field communication antenna assembly and a wireless terminal. The near field communication antenna assembly comprises a near field antenna coil, a non-metal substrate, a metal back cover of the wireless terminal and a communication module, wherein the near field antenna coil is attached to the non-metal substrate; a through hole is formed on the metal back cover, the metal back cover is attached below the through hole, and at least part of the near field antenna coil is located in a coverage of the through hole; a touch down point is arranged on the metal back cover, a first end point of the near field antenna coil is connected with the touch down point, and a second end point of the near field antenna coil is connected with the communication module. The near field communication antenna assembly is simple in structural design and does not generate adverse effects on the appearance of the wireless terminal.

The invention discloses a probe antenna for terahertz waveband near-field imaging and specifically relates to surface metallized coating on a narrow edge of an antenna on the basis of polymethyl methacrylate (PMMA) material manufacture. The antenna comprises a terahertz signal couple input part, a terahertz resonant cavity and a PMMA surface metallized thin film coating layer. The antenna inputs a terahertz signal via a waveguide radiator, changes the transmission mode of the terahertz signal and further effectively changes terahertz electric-field radiation, thereby achieving the aim of terahertz near-field scanning imaging. The technical field of terahertz electronic devices is related. The probe antenna of the invention has the characteristics of having a simple structure, being easy to machine and manufacture and making it easy to perform couple operation with terahertz standard waveguide. The output power and the efficiency of the probe antenna of the invention are significantly superior to those of existing terahertz near-field scanning antennas. The probe antenna has wide market prospects in terms of material defect detection and material composition identification.

The invention discloses an ultra-wideband and wide beam bipolar antenna unit. The unit comprises two groups of bipolarized orthogonal dipole radiating units, wherein each dipole radiating unit comprises a pair of Baluns and a pair of U-shaped radiating oscillators respectively arranged on the Baluns; the U-shaped radiating oscillators are arranged centro-symmetrically; and each U-shaped radiating oscillator comprises two horizontally bent branches, two vertically bent branches and an I-shaped branch, the horizontally bent branches are arranged on the outer sides of the tail ends of the radiating arms of the U-shaped radiating oscillator, the vertically bent branches are arranged at the tail ends of the radiating arms of the U-shaped radiating oscillator, are vertical to the tail end of the U-shaped radiating oscillator, and extend along the axial direction, and the I-shaped branch is arranged between the two radiating arms of the U-shaped radiating oscillator. In the way that the horizontally bent branches, the vertically bent branches and the I-shaped branches are loaded on the U-shaped radiating oscillators, the U-shaped radiating oscillators can superpose radiation in multiple resonant modes, so that bandwidth is greatly increased, and the bandwidth of an antenna can be widened by the unit.

In the manufacture of RFID tags, electronic components are connected with soldered connections to antennas stamped from a thin strip of electrically conductive metal, utilizing methods and intermediate products which enable accurate registration of the leads of the electronic components with contacts on the antennas. Thus, a strip of metal is provided with contact members unitary with the strip and coupled to the strip through compliant coupling arrangements which allow compliant movement of the contact members relative to the strip for accurate alignment with electronic components juxtaposed with the contact members for soldered connections between the leads of the electronic components and the corresponding contact members. The antennas, with the electronic components soldered in place, are carried by a substrate, and the sequence of the stamping and soldering operations avoids exposing the substrate to the heat of soldering.

The invention relates to a multi-frequency antenna, which comprises a ground plane, a radiation conductor, a parasitic conductor and a feed-in wire, wherein the radiation conductor comprises a feed-in part, a first radiation arm and a second radiation arm; the feed-in wire comprises a central wire and an external wire; the feed-in part is provided with a coupling edge; the parasitic conductor is connected with the ground plane and provided with a coupling edge which is arranged along a profile of the coupling edge of the feed-in part, and a gap is formed between the coupling edge of the parasitic conductor and the coupling edge of the feed-in part; the central wire is connected with the feed-in part; and the external wire is connected with the ground plane. The low-frequency resonance mode is excited through the first radiation arm and the second radiation arm and the high-frequency resonance mode is excited through the parasitic conductor, so that an antenna system integrally covers various operation frequency bands and has the characteristic of ultra wide band; and simultaneously the composition structure of the antenna is simplified.

The invention discloses a missile-borne and miniature monopole antenna. The missile-borne and miniature monopole antenna mainly comprises a conical antenna cover, a sleeve monopole antenna, a PCB, a metal bottom plate and a missile body, wherein the conical antenna cover is arranged at a head end of the missile body, the sleeve monopole antenna comprises a metal sleeve, a ceramic dielectric rod, afeeding probe and a support cushion sheet, the metal cylinder wraps a side surface and a bottom surface of the cylindrical ceramic dielectric rod, the feeding probe penetrates through a bottom surface of the metal sleeve and is fixed on the ceramic dielectric rod, the metal sleeve is of a barrel-shaped structure of which an upper surface is opened and the bottom is closed, and a spiral gap is formed in a side wall of the metal sleeve. By the missile-borne and miniature monopole antenna, the problems that the size of an existing monopole antenna is excessively large and missile-borne application cannot be achieved are solved, and the missile-borne and miniature monopole antenna has the advantage of simple structure and is easy to process and assemble.

The invention relates to a terminal antenna for reducing a specific absorption rate (SAR) of a data card and a molding method of the terminal antenna. The terminal antenna has an annular antenna structure connected with the data card, wherein the annular antenna structure at least comprises two sections of parallel slot lines; and the current flow directions in the parallel slot lines are opposite. By the annular arrangement, the SAR of a wireless terminal product is reduced, and the aims of realizing the whole bandwidth and reducing the SAR of a preset frequency range by changing the annular wiring form can be fulfilled under the condition that the bandwidth is guaranteed.

The invention discloses a broadband dual-frequency dual-circular-polarization microstrip antenna array with a small frequency ratio. The broadband dual-frequency dual-circular-polarization microstrip antenna array comprises a dielectric substrate 11, and 2N+1 subarrays arranged on the dielectric substrate 11, wherein 2N subarrays with an odd number work at a first working frequency; 2N subarrays with an even number work at a second working frequency; N is a natural number; and the subarrays of two working frequencies are alternately arranged. By a distributed parameter microstrip line design, the broadband dual-frequency dual-circular-polarization microstrip antenna array with the small frequency ratio has the advantages of being of a single-layer plane structure, easy to process, easy to integrate, easy to array, low in cost, low in loss, good in radiation characteristic, high in stability, suitable for mass production and the like, and can be used for communication systems of satellite communication and the like.

An antenna includes a core formed of a high-permeability material and a coil wire wrapped around at least a part of the core. In one embodiment, the high-permeability material includes ferrite material.

The invention discloses a hidden type feed ridge waveguide slot antenna. The hidden type feed ridge waveguide slot antenna comprises a slot leaky wave ridge waveguide and a ridge waveguide coaxial converter which are in mutual connection; the slot leaky wave ridge waveguide comprises a ridge waveguide and a plurality of radiation slots formed in the upper surface of the ridge waveguide; the ridgewaveguide coaxial converter comprises a ridge waveguide cavity and an SMA connector; convex grooves are formed in the ridge waveguide and the lower bottom surface of the ridge waveguide cavity; the cross sections of the ridge waveguide and the ridge waveguide cavity are inversely concave-shaped; a metal table is arranged in the convex groove of the ridge waveguide cavity; the SMA connector is arranged in the metal table in a penetration manner; by virtue of reasonable radiation slot layout on the ridge waveguide, an effect of high gain and low side lobe is achieved; the metal table is arrangedin the ridge waveguide coaxial converter, and the SMA connector is hidden in the ridge waveguide coaxial converter, so that an effect of reasonable space utilization and SMA connector protection is achieved; and in addition, an effect of reducing the antenna dimension is also realized.

The invention discloses a multi-antenna mobile terminal, which comprises a first machine body, a second machine body, a rotating shaft, a first elastic piece, a second elastic piece, a plurality of radio frequency modules, a first radiator and a second radiator, wherein the first and second machine bodies are connected with each other by the rotating shaft; the first elastic piece and the first radiator are arranged at the first machine body; the second elastic piece, the second radiator and the plurality of radio frequency modules are arranged at the second machine body; at least one of the first radiator, the first elastic piece, the rotating shaft, the second elastic piece, the second radiator and the plurality of radio frequency modules is electrically connected in turn; and the first and second radiators are Bluetooth antennae, wireless fidelity (WIFI) antennae or global positioning system (GPS) antennae. The multi-antenna mobile terminal adopts a way of electrically connecting the elastic pieces and the rotating shaft to ensure radio frequency current between the machine bodies, and adopts the way of connecting a plurality of radiators and the plurality of radio frequency modules to realize the function of multi-antenna and reduce an assembly space to a certain extent.

The invention relates to a planar horn antenna, in particular to an amplitude impedance calibrated package interlayer antenna which comprises a micro-strip feeder (1), a horn antenna (2) and metalized via holes (3), wherein the micro-strip feeder (1), the horn antenna (2) and the metalized via holes (3) are integrated on a dielectric substrate (4) which is arranged on the inner layer of a three-dimensional package (5). One end of the micro-strip feeder (1) is connected with an internal circuit (8) through a coplanar waveguide (7) on the lateral side of a package, the horn antenna (2) comprises a bottom metal plane (9), a top metal plane (10) and metalized via side walls (11), a middle metalized via array (17), a left metalized via array (18) and a right metalized via array (19) consist of the metalized via holes (3) and form four dielectric filling waveguides in the horn antenna (2), and port wave impedance of the four dielectric filling waveguides on an antenna caliber surface (12) is equal to free space wave impedance. Antenna caliber efficiency can be improved while return loss is reduced.

The present disclosure provides a unipolar MIMO antenna, which consists of a plurality of unipolar RF antennae. Each of the unipolar RF antennae comprises a metal sheet and a feeder line. The metal sheet is enchased with a metal microstructure thereon, and the feeder line and the metal sheet are connected in a signal communicative manner. The unipolar MIMO antenna of the present disclosure breaks through the framework of the conventional antenna design and eliminates the complex design of the impedance matching network to ensure miniaturization of the antenna. Thereby, the antenna can be used in a wireless apparatus having a small size, a high transmission efficiency and a high isolation degree among antennae and can satisfy the requirement of a low power consumption in the design of modern communication systems. Additionally, the present disclosure further provides a bipolar MIMO antenna and a hybrid MIMO antenna.

The present invention relates to a communication antenna, an antenna system including the communication antenna, and a communication device including the antenna. The communication antenna comprises a first radiator having a first substrate and a first radiation fin arranged on the first substrate, wherein the first radiation fin has a first feed portion and a third feed portion; and a second radiator having a second substrate and a second radiation fin arranged on the second substrate, wherein the first radiation fin has a second feed portion and a fourth feed portion, the radiating surfaces of the first radiation fin and the second radiation fin are recessed surfaces, the first radiation fin and the second radiation fin respectively have corner cuts, and the first radiator and the second radiator are disposed in a lamination mode.

The invention discloses a dual-frequency dual-polarization planar antenna applied to a wireless local area network. The dual-frequency dual-polarization planar antenna applied to the wireless local area network comprises a reflecting plate, a +45 degrees polarized port, a -45 degrees polarized port, a first 2.4G one-to-two circuit board, a second 2.4G one-to-two circuit board, first to second 5G one-to-four circuit boards, a first division frequency integrated circuit board and a second division frequency integrated circuit board; wherein the reflecting plate is equipped with first to second 2.4G radiation oscillators and first to fourth 5G radiation oscillators; the first division frequency integrated circuit board is equipped with a first 2.4G frequency band input port, a first 5G frequency band input port, a first division frequency integrated circuit and a first dual frequency band output port; and the second division frequency integrated circuit board is equipped with a second 2.4G frequency band input port, a second 5G frequency band input port, a second division frequency integrated circuit and a second dual frequency band output port. The dual-frequency dual-polarization planar antenna applied to the wireless local area network has the advantages of small volume, low cost, simple structure and installation, good performance indexes, which can improve the radiation efficiency of the antenna.